Charging method, system, device, storage medium and program product

Abstract

Embodiments of the present application disclose a charging method, system, device, storage medium and program product. The method comprises: in response to a charging event, determining charging demand information of an electric device; based on the charging demand information, determining a target charging mode of a charging device for charging the electric device, wherein the target charging mode corresponds to target charging parameters; the charging device comprises an energy storage device; based on the target charging parameters corresponding to the target charging mode, charging the electric device; wherein, in the case that the target charging mode comprises a first charging mode, the target charging parameters corresponding to the first charging mode comprise first charging parameters, and the charging power indicated by the first charging parameters is greater than 300 kilowatts.

Description

TECHNICAL FIELD

[0001] The present application relates to, but is not limited to, the technical field of charging and discharging, and in particular to a charging method, system, device, storage medium and program product. BACKGROUND

[0002] With the rapid increase of electric equipment, the problems of slow charging of electric equipment, poor experience and the like need to be solved. In order to meet the charging needs of electric equipment in different scenes, various charging modes have appeared. However, there is no good method to determine the appropriate charging mode for charging the electric equipment. SUMMARY

[0003] Therefore, the embodiments of the present application provide at least a charging method, system, device, storage medium and program product.

[0004] The technical scheme of the embodiments of the present application is implemented as follows:

[0005] On the one hand, the embodiments of the present application provide a charging method, which comprises: in response to a charging event, determining charging demand information of electric equipment; based on the charging demand information, determining a target charging mode of a charging device for charging the electric equipment, wherein the target charging mode corresponds to target charging parameters; the charging device comprises an energy storage device; and based on the target charging parameters corresponding to the target charging mode, charging the electric equipment.

[0006] In the case where the target charging mode comprises a first charging mode, the target charging parameters corresponding to the first charging mode comprise first charging parameters, and the charging power indicated by the first charging parameters is greater than 300 kilowatts.

[0007] The energy storage device and / or the charging device satisfy one or more of the following conditions:

[0008] The ratio between the rated energy of the energy storage device and the maximum discharging power of the energy storage device is not greater than 1:3;

[0009] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0010] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0011] In the embodiments of the present application, based on the charging demand information of the electric equipment, the target charging mode of the charging device for charging the electric equipment is determined, and then based on the target charging parameters corresponding to the target charging mode, the electric equipment is charged. Through this method, in the case where there are multiple charging modes, the most suitable charging mode can be determined for the electric equipment based on the charging demand information of the electric equipment.

[0012] In some embodiments, the input power of the energy storage device is less than 150 kilowatts; and the output power of the energy storage device is greater than or equal to 300 kilowatts in the first charging mode.

[0013] In the embodiments of the present application, the input power and output power ranges of the energy storage device are provided, and the normal operation of the energy storage device is determined by controlling the input power or output power of the energy storage device within the corresponding range.

[0014] In some embodiments, the charging mode of the charging device further includes a second charging mode, and the second charging parameter in the second charging mode indicates a charging power less than or equal to 300 kilowatts; and the method further includes: in a case where the target charging mode is the first charging mode and the energy storage device cannot charge the electrical equipment according to the first charging parameter, determining a second charging parameter corresponding to the second charging mode; and charging the electrical equipment according to the second charging parameter.

[0015] In the embodiments of the present application, in a case where it is determined that the energy storage device does not support charging the electrical equipment according to the first charging mode, the electrical equipment is charged according to the second charging parameter corresponding to the second charging mode, thereby reducing the time length of the determination process of the target charging mode, and further improving the charging time length of the electrical equipment.

[0016] In some embodiments, the charging mode of the charging device further includes a third charging mode, and the third charging parameter in the third charging mode indicates a charging power less than the charging power indicated by the second charging parameter in the second charging mode; and the method further includes: in a case where the target charging mode is the second charging mode and the energy storage device cannot charge the electrical equipment according to the second charging parameter, determining a third charging parameter corresponding to the third charging mode; and charging the electrical equipment according to the third charging parameter.

[0017] In the embodiments of the present application, in a case where it is determined that the energy storage device does not support charging the electrical equipment according to the second charging mode, the electrical equipment is charged according to the third charging parameter corresponding to the third charging mode, thereby reducing the time length of the determination process of the target charging mode, and further improving the charging time length of the electrical equipment.

[0018] In some embodiments, the target charging parameter further indicates a target charging mode; and in a case where the target charging mode includes a first charging mode, the electrical equipment is charged according to the target charging parameter corresponding to the target charging mode, including: providing all the power of the charging power indicated by the target charging parameter by the energy storage device for the electrical equipment.

[0019] In a case where the target charging mode includes the second charging mode, the power consumption device is charged based on the target charging parameter corresponding to the target charging mode, including: providing, by the power grid, a part of the charging power indicated by the target charging parameter for the power consumption device, and providing, by the energy storage device, another part of the charging power indicated by the target charging parameter for the power consumption device; the part of the charging power includes part or all of the charging power that can be provided by the power grid.

[0020] In the embodiments of the present application, two charging methods are provided, i.e., the energy storage device provides power for the power consumption device, and the energy storage device and the power grid jointly provide power for the power consumption device, so that the corresponding charging method can be matched according to the charging demand of different scenes.

[0021] In some embodiments, before the power consumption device is charged based on the target charging parameter corresponding to the target charging mode, the method further includes: determining an estimated charging period; in a case where the estimated charging period falls within the first period of power supply by the power grid, determining that the target charging mode is the first charging mode; in a case where the estimated charging period falls within the second period, determining that the target charging mode is the second charging mode; in a case where a first sub-period of the estimated charging period falls within the first period of power supply by the power grid, determining that the target charging mode is the first charging mode within the first sub-period, and in a case where a second sub-period of the estimated charging period falls within the second period of power supply by the power grid, determining that the target charging mode is the second charging mode within the second sub-period.

[0022] The first period and the second period are different.

[0023] In the embodiments of the present application, the charging mode of the corresponding period is determined based on the electricity price of different periods, so that the first charging mode is used when the electricity price is the highest, and the second charging mode is used in other periods, thereby saving the charging cost of the power consumption device.

[0024] In some embodiments, the ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:4.

[0025] In some embodiments, based on the charging demand information, the target charging mode of the charging device for charging the power consumption device is determined, including: based on the charging demand information, determining the target charging parameter of the charging device for charging the power consumption device from at least one charging mode of the charging device; the at least one charging mode of the charging device includes the first charging mode.

[0026] In the embodiments of the present application, the target charging parameter of the charging device for charging the power consumption device is determined through the charging demand information of the power consumption device, so that the charging device can charge the power consumption device with the target charging parameter.

[0027] In some embodiments, the charging demand information comprises an expected charging duration; based on the charging demand information, a target charging parameter of the charging device for charging the electrical equipment is determined from at least one charging mode of the charging device, comprising: determining an estimated charging duration corresponding to each of the at least one charging mode of the charging device; determining a duration difference between the expected charging duration and the estimated charging duration of each charging mode; and determining the charging mode corresponding to the minimum duration difference among all the duration differences as the target charging mode.

[0028] In the embodiments of the present application, the target charging mode is determined based on the difference between the expected charging duration and the estimated charging duration of each charging mode. In this way, the charging mode that best matches the user's charging demand can be determined.

[0029] In some embodiments, the method further comprises: obtaining a current state of charge value and / or a remaining energy state value of the energy storage device; determining whether the energy storage device can charge the electrical equipment at the target charging parameter based on the state of charge value and / or the remaining energy state value; and charging the electrical equipment based on the target charging parameter in a case where it is determined that the energy storage device can charge the electrical equipment at the target charging parameter.

[0030] In the embodiments of the present application, first, a current state of charge value and / or a remaining energy state value of the energy storage device is obtained, and then, based on the state of charge value and the remaining energy value, the electrical equipment is charged at a target charging parameter corresponding to the target charging mode in a case where it is determined that the energy storage device supports charging the electrical equipment in the target charging mode.

[0031] In some embodiments, determining whether the energy storage device can charge the electrical equipment at the target charging parameter based on the state of charge value and / or the remaining energy state value comprises: in a case where the state of charge value is greater than or equal to a first state of charge threshold value and / or the remaining energy state value is greater than or equal to a first remaining energy threshold value, it is determined that the energy storage device supports charging the electrical equipment at a charging power corresponding to a first charging mode; and in a case where the state of charge value is less than the first state of charge threshold value and greater than or equal to a second state of charge threshold value and / or the remaining energy state value is less than the first remaining energy threshold value and greater than or equal to a second remaining energy threshold value, it is determined that the energy storage device supports charging the electrical equipment at a charging power corresponding to a second charging mode.

[0032] In the embodiments of the present application, based on the current state of charge value and / or the remaining energy state value, the charging mode that the energy storage device currently supports can be determined, so that the electrical equipment is quickly charged at a charging power corresponding to the supported charging mode.

[0033] In some embodiments, the method further comprises: outputting a first prompt message in a case where the state of charge value is less than a first state of charge threshold value, and / or the state of remaining energy value is less than a first state of remaining energy threshold value, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode; outputting a second prompt message in a case where the state of charge value is less than a second state of charge threshold value, and / or the state of remaining energy value is less than a second state of remaining energy threshold value, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode; and determining the selected charging mode as the target charging mode in response to the charging mode selected based on the first prompt message or the second prompt message.

[0034] In the embodiments of the present application, in a case where it is determined that the energy storage device does not support charging the electric device in the target charging mode, information for prompting the user that the target charging mode is not supported and prompting the user of the selectable charging modes is outputted, the user can reselect the target charging mode according to the prompted charging modes, and then charge the electric device according to the target charging parameters corresponding to the selected target charging mode.

[0035] In some embodiments, in response to the charging event, the charging demand information of the electric device is determined, including: receiving a charging request message sent by the charging gun or the user end in response to the charging event, the charging request message including attribute information of the battery of the electric device; the attribute information of the battery at least including: a plurality of charging parameters applicable to the electric device; and determining the charging demand information of the electric device based on the attribute information of the battery.

[0036] In the embodiments of the present application, a method for determining the charging demand information of the electric device is proposed, so as to complete the determination of the charging demand information of the electric device in this way.

[0037] In some embodiments, the charging demand information of the electric device is determined based on the attribute information of the battery, including: determining the charging demand information of the electric device based on the attribute information of the battery and a charging strategy; and the charging strategy is set for the electric device or the charging device.

[0038] In the embodiments of the present application, the charging demand information of the electric device can be determined based on the attribute information of the battery and the charging strategy, and then the target charging mode of the charging device can be matched through the charging demand information.

[0039] In some embodiments, the charging demand information of the electric device is determined based on the attribute information of the battery, including: determining and outputting estimated consumption parameter values corresponding to a plurality of charging modes respectively based on the attribute information of the battery, the estimated consumption parameter values including estimated charging time and / or estimated charging cost; and determining the selected estimated consumption parameter values as the charging demand information of the electric device in response to a selection operation on the plurality of estimated consumption parameter values.

[0040] In the embodiments of the present application, the estimated consumption parameter value corresponding to the selected charging mode is determined as the charging demand information of the electric device by determining the estimated consumption parameter values corresponding to the plurality of charging modes.

[0041] On the other hand, the embodiments of the present application provide a charging method, which comprises: in response to a charging event, determining an estimated charging period of an electric device and a target charging mode of a charging device for charging the electric device based on charging demand information of the electric device; determining a target charging mode for charging the electric device in the estimated charging period; and charging the electric device in the target charging mode based on the target charging mode corresponding to the target charging parameter.

[0042] In the case where the target charging mode includes a first charging mode, the target charging parameter corresponding to the first charging mode includes a first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts.

[0043] The energy storage device and / or the charging device satisfies one or more of the following conditions:

[0044] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0045] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0046] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0047] In the embodiments of the present application, the estimated charging period of the electric device and the target charging mode are determined based on the demand information of the electric device, so that the charging mode of the estimated charging period is determined based on the estimated charging period. In this way, different charging modes can be used in different time periods with different electricity prices to save the charging cost of the electric device, thereby attracting more users to charge here and achieving more revenue.

[0048] On the other hand, the embodiments of the present application provide a charging method, which comprises: in response to a charging mode selection, obtaining a current state of charge value and / or a remaining energy state value of an energy storage device in a charging device; determining whether the energy storage device can charge an electric device with a target charging parameter corresponding to a target charging mode based on the state of charge value and / or the remaining energy state value; the target charging mode is a charging mode of the charging device for charging the electric device; and charging the electric device based on the target charging parameter in the case where it is determined that the energy storage device can charge the electric device with the target charging parameter.

[0049] In the embodiments of the present application, the estimated charging period of the electric device and the target charging mode are determined based on the demand information of the electric device, so that the charging mode of the estimated charging period is determined based on the estimated charging period. In this way, different charging modes can be used in different time periods with different electricity prices to save the charging cost of the electric device, thereby attracting more users to charge here and achieving more revenue.

[0050] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0051] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0052] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4

[0053] In an embodiment of the present application, first, the current state of charge value and / or remaining energy state value of the energy storage device is obtained, and then, based on the state of charge value and the remaining energy value, when it is determined that the energy storage device supports charging the electrical device according to the target charging mode, the electrical device can be charged with the target charging parameters corresponding to the target charging mode.

[0054] On the other hand, an embodiment of the present application provides a charging method, the method comprising: in response to selection of a first charging mode, obtaining a current state of charge value and / or a remaining energy state value of an energy storage device in a charging device; when the state of charge value is greater than or equal to a first charge threshold value and / or the remaining energy state value is greater than or equal to a first remaining energy threshold value, determining that the energy storage device supports charging the electrical device according to the charging power corresponding to the first charging mode;

[0055] wherein the charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts;

[0056] The energy storage device and / or charging device meets one or more of the following conditions:

[0057] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0058] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0059] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0060] In an embodiment of the present application, when the first charging mode is selected, it is determined based on the current state of charge value and / or remaining energy state value of the energy storage device that the energy storage device supports charging the electrical device according to the charging power corresponding to the first charging mode, so as to ensure that the electrical device can complete charging in the first charging mode.

[0061] In another aspect, the embodiments of the present application provide a charging method, the method comprising: in response to selection of a second charging mode, obtaining a current state of charge value and / or a remaining energy state value of an energy storage device in a charging device; determining that the energy storage device supports charging of an electrical device according to a charging power corresponding to the second charging mode in a case that the state of charge value is less than a first state of charge threshold and greater than or equal to a second state of charge threshold, and / or the remaining energy state value is less than a first remaining energy threshold and greater than or equal to a second remaining energy threshold; wherein the charging power indicated by a second charging parameter in the second charging mode is less than or equal to 300 kilowatts.

[0062] In the embodiments of the present application, in the case of selection of the second charging mode, it is determined that the energy storage device supports charging of the electrical device according to the charging power corresponding to the second charging mode based on the current state of charge value and / or the remaining energy state value of the energy storage device, so that the electrical device can complete charging in the second charging mode.

[0063] In another aspect, the embodiments of the present application provide a charging method, the method comprising: in response to selection of a charging mode, obtaining a current state of charge value and / or a remaining energy state value of an energy storage device in a charging device; wherein the charging mode comprises a first charging mode, and a first charging power indicated by a first charging parameter in the first charging mode is greater than 300 kilowatts; providing, by the energy storage device, all power of a charging power indicated by a charging parameter in the charging mode for an electrical device in a case that the state of charge value is greater than a third state of charge threshold, and / or the remaining energy state value is greater than a third remaining energy threshold.

[0064] The energy storage device and / or the charging device satisfy one or more of the following conditions:

[0065] The ratio between the rated energy of the energy storage device and the maximum discharging power of the energy storage device is not greater than 1:3;

[0066] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0067] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0068] In the embodiments of the present application, based on the current state of charge value and / or the remaining energy state value of the energy storage device, it can be determined that the energy storage device can support an operating mode of providing, by the energy storage device, all power of a charging power indicated by a charging parameter in the charging mode for an electrical device, so that the energy storage device can be controlled to charge the electrical device alone.

[0069] In another aspect, an embodiment of the present application provides a charging method, which comprises: in response to a charging event, sending a state parameter of an energy storage device in a charging device to a charging control device in the charging device; the state parameter comprises one or more of: a state of charge value, a residual energy state value; receiving a discharge parameter of the energy storage device sent by the charging control device, wherein the discharge parameter of the energy storage device is determined based on a target charging mode for charging the electric device and the state parameter; when a circuit between the energy storage device and a bidirectional direct current direct current converter (DC / DC) module of the charging device is turned on, controlling the energy storage device to discharge according to the discharge parameter; wherein, when the target charging mode comprises a first charging mode, the target charging parameter corresponding to the first charging mode comprises the discharge parameter of the energy storage device, and the discharge power indicated by the discharge parameter of the energy storage device is greater than 300 kW.

[0070] In an embodiment of the present application, when the discharge parameter of the energy storage device sent by the charging control device is received, the energy storage device is controlled to discharge according to the discharge parameter, so that the charging device can charge the electric device with the target charging parameter corresponding to the target charging mode.

[0071] In another aspect, an embodiment of the present application provides a charging control device, which comprises:

[0072] A first determination module for determining charging demand information of an electric device in response to a charging event;

[0073] A second determination module for determining a target charging mode of the charging device for charging the electric device based on the charging demand information, wherein the target charging mode corresponds to a target charging parameter; the charging device comprises an energy storage device;

[0074] A first charging module for charging the electric device based on the target charging parameter corresponding to the target charging mode;

[0075] When the target charging mode comprises a first charging mode, the target charging parameter corresponding to the first charging mode comprises a first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kW.

[0076] In another aspect, an embodiment of the present application provides a charging system, which comprises a charging device and an electric device, wherein the charging device comprises an energy storage device;

[0077] The charging device is used for determining charging demand information of the electric device in response to a charging event; determining a target charging mode of the charging device for charging the electric device based on the charging demand information, wherein the target charging mode corresponds to target charging parameters; the charging device comprises an energy storage device; and charging the electric device based on the target charging parameters corresponding to the target charging mode.

[0078] In a case where the target charging mode comprises a first charging mode, the target charging parameters corresponding to the first charging mode comprise first charging parameters, and the first charging parameters indicate a charging power greater than 300 kilowatts.

[0079] In another aspect, the embodiments of the present application provide a charging device, comprising a charging and discharging circuit and a charging control device; the charging control device is used for implementing the steps of the above method when executing a program.

[0080] In another aspect, the embodiments of the present application provide a computer readable storage medium, which stores a computer program, and the computer program is executed by the charging control device to implement some or all steps of the above method.

[0081] In another aspect, the embodiments of the present application provide a computer program product, comprising a computer program or instructions, and the computer program or instructions are executed by the charging control device to implement some or all steps of the above method.

[0082] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, but not limiting the technical solutions of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0083] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings, wherein:

[0084] Figure 1 The composition structure of a charging system provided by the embodiments of the present application Figure One ;

[0085] Figure 2 The composition structure of a charging system provided by the embodiments of the present application Figure Two ;

[0086] Figure 3 The implementation flowchart of a charging method provided by the embodiments of the present application Figure One ;

[0087] Figure 4An implementation flow of a charging method provided by the embodiment of the present application Figure Two ;

[0088] Figure 5 An implementation flow of a charging method of an electric vehicle and a battery system module provided by the embodiment of the present application

[0089] Figure 6 A schematic diagram of a charging mode powered by a battery system module alone provided by the embodiment of the present application

[0090] Figure 7 A communication architecture diagram of a charging system provided by the embodiment of the present application

[0091] Figure 8 A schematic diagram of a charging mode powered by a grid to a battery system module provided by the embodiment of the present application

[0092] Figure 9 A schematic diagram of a charging mode powered by a battery system module and a grid together provided by the embodiment of the present application

[0093] Figure 10 A schematic diagram of a charging mode powered by a grid alone provided by the embodiment of the present application

[0094] Figure 11 An implementation flow of a power supply method of an electric vehicle and a battery system module to a grid provided by the embodiment of the present application

[0095] Figure 12 A schematic diagram of a power supply mode of an electric vehicle to a grid provided by the embodiment of the present application

[0096] Figure 13 A schematic diagram of a power supply mode of a battery system module to a grid provided by the embodiment of the present application

[0097] Figure 14 A component structure of a charging control device provided by the embodiment of the present application Figure One ;

[0098] Figure 15 A component structure of a charging control device provided by the embodiment of the present application Figure Two ;

[0099] Figure 16 A component structure of a charging control device provided by the embodiment of the present application Figure Three ;

[0100] Figure 17 A component structure of a charging control device provided by the embodiment of the present application Figure Four ;

[0101] Figure 18 A schematic structural diagram of a charging control device provided for an embodiment of the present application Figure Five ;

[0102] Figure 19 A schematic structural diagram of a charging control device provided for an embodiment of the present application Figure Six ;

[0103] Figure 20 A schematic structural diagram of a charging control device provided for an embodiment of the present application Figure Seven . DETAILED DESCRIPTION

[0104] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application are further described in detail below in combination with the drawings and embodiments, and the described embodiments should not be regarded as limiting the present application, and all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0105] In the following description, “some embodiments” are related to a subset of all possible embodiments, but it can be understood that “some embodiments” can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0106] It should be noted that the terms “first\second\third” involved in the embodiments of the present application are only to distinguish similar objects, and do not represent a specific order of the objects, and it can be understood that “first\second\third” can be interchanged with a specific order or sequence as allowed, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0107] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which the embodiments of the present application belong. It should also be understood that terms such as those defined in a general dictionary should be understood as having meanings consistent with those in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as such.

[0108] Battery management system (BMS, Battery Management System): is a device for monitoring the state of energy storage battery, mainly for intelligent management and maintenance of each battery unit, preventing overcharging and overdischarging of the battery, prolonging the service life of the battery, and monitoring the state of the battery.

[0109] The embodiment of the present application proposes a charging system, including a charging device and an electric device, wherein the charging device includes an energy storage device. Taking the electric device as an electric vehicle as an example, the charging system is introduced. Figure 1 and Figure 2 As shown, the system includes N charging devices 21, where N is an integer greater than 1. Downstream of the charging devices 21 are charging guns 31 and electric vehicles 41. Upstream of the charging devices 21 is a cloud service 1. The charging devices 21 and cloud service 1 exchange information via 4G / 5G, and cloud service 1 exchanges information with a monitoring platform 5 via 4G / 5G. The charging devices 21 include a wireless communication device 211, a charging control device 214, an energy storage device 212, and a bidirectional DC / DC module 213.

[0110] by Figure 2 For example, the charging device 21 is described. The downstream of the charging device 21 includes a charging gun 31 and a device driven by a power battery, such as an electric car 41. The charging device 21 includes at least a wireless communication device 211, an energy storage device 212 and an energy conversion device. The energy conversion device can mainly include a bidirectional DC / DC module 213 and a charging control device 214. The energy storage device 212 and the bidirectional DC / DC module 213 can exchange information. The wireless communication device 211 communicates with the charging control device 214 and the cloud service 1 respectively.

[0111] One end of the energy storage device 212 is connected to the DC bus 8 to output the electric energy in the energy storage device 212 to the power grid 10; the other end of the energy storage device 212 is connected to the bidirectional DC / DC module 213 to charge the electric vehicle 41 through the bidirectional DC / DC module 213 and the charging gun 31; the energy storage device 212 is used to charge the electric vehicle 41 through the bidirectional DC / DC module 213, or to output the electric energy in the energy storage device 212 to the DC bus 8;

[0112] Here, the energy storage device 212 also includes a BMS, where the BMS is responsible for monitoring the status of the batteries in the energy storage device, such as voltage, current, temperature, and battery health status.

[0113] One end of the bidirectional DC / DC module 213 is connected to the charging gun 31, and the other end is connected to the DC bus 8, and is used to transmit the electric energy in the electric vehicle 41 to the energy storage device 212 and / or the power grid 10, or transmit the electric energy of the power grid 10 and / or the electric energy of the energy storage device 212 to the electric vehicle 41;

[0114] The bidirectional DC / DC module 213 also includes a charge control unit (CCU).

[0115] In some embodiments, the power of the DC bus 8 can be converted into AC power by the bidirectional AC / DC module 9 and delivered to the power grid 10, or the power of the power grid 10 can be converted into DC power and delivered to the DC bus 8.

[0116] In some embodiments, the power grid 10 further includes a transformer 7, which is used to provide power to the load connected to the power grid 10 and / or the electric vehicle 41 after voltage transformation of the power of the power grid 10.

[0117] The charging control device 214 is configured to determine charging demand information of the electrical equipment in response to a charging event, determine a target charging mode of the charging device for charging the electrical equipment based on the charging demand information, wherein the target charging mode corresponds to target charging parameters, the charging device includes an energy storage device, and charge the electrical equipment based on the target charging parameters corresponding to the target charging mode, and wherein, in the case that the target charging mode includes a first charging mode, the target charging parameters corresponding to the first charging mode include first charging parameters, and the first charging parameters indicate a charging power greater than 300 kW.

[0118] In some embodiments, the charging control device 214 can be an energy management system (EMS).

[0119] In some embodiments, the charging control device can be independently arranged outside the energy storage device and the bidirectional DC / DC module in the charging device, and used to control the operation of the charging device. For example, the charging control device can be an EMS, and the EMS can communicate with the BMS in the energy storage device and the CCU in the bidirectional DC / DC module.

[0120] In other embodiments, the functions implemented by the charging control device can also be integrated with each sub-module (such as the energy storage device and the bidirectional DC / DC module) of the charging device, and used to cooperatively control the operation of the charging device. For example, the functions implemented by the charging control device are all or partially integrated in the CCU of the bidirectional DC / DC module, or the functions implemented by the charging control device are all or partially integrated in the BMS of the energy storage device.

[0121] It should be noted that the charging device including the energy storage device can be referred to as a charging and storage integrated machine, and can also be referred to as a charging and discharging integrated machine.

[0122] The charging system realized by the charging device including the energy storage device enables the charging system to support multiple charging modes and meet the charging requirements of power consumption equipment in multiple scenarios. In addition, in the current market, different charging modes are simultaneously provided to users by additionally configuring a transformer or expanding the transformer. However, this method not only increases the construction cost but also increases the floor area. The charging system realized by the charging device including the energy storage device can provide multiple charging modes to users simultaneously without increasing the transformer, thereby reducing the construction cost.

[0123] The embodiment of the present application provides a charging method, as shown in the method can include steps S301 to S303: Figure 3

[0124] Step S301: in response to a charging event, determining charging requirement information of a power consumption equipment;

[0125] Here, the charging event can be an event of receiving a charging signal or an event of receiving a charging message, wherein the charging signal can refer to a relevant electrical signal triggering the power consumption equipment to charge, for example, the charging signal can be triggered when the user inserts the charging gun into the power consumption equipment; the charging message can be triggered when the user configures the charging requirement of the power consumption equipment on the display interface of the terminal such as a mobile phone, a computer and the like.

[0126] It should be noted that the charging method provided by the embodiment of the present application is described from the perspective of the operation of the charging device.

[0127] The charging requirement information can be configured by the user on the display interface of the terminal such as a mobile phone, a charging system and the like, wherein the configuration items can include an expected charging mode, an expected charging time length, an expected charging capacity, an expected charging cost, an expected charging frequency and the like.

[0128] It should be noted that the configuration items included in the above charging requirement information can be selected by the user according to the charging requirement of the user, wherein the configuration items can be selected singly or in multiple, and when the number of configuration items is multiple, for example, the combination of configuration items can be the combination of the expected charging mode and the expected charging capacity, and the combination of configuration items can also be the combination of the expected charging cost, the expected charging time length and the expected charging capacity, which is not limited in the present application.

[0129] The power consumption equipment can be an equipment driven by electric energy to work, for example, an electric vehicle, an aircraft, a ship, an electric bicycle, an electric toy and the like electronic equipment with a power battery driven by electric energy.

[0130] ​Step S302: determining a target charging mode of the charging device for charging the electrical equipment based on the charging demand information, wherein the target charging mode corresponds to target charging parameters; the charging device comprises an energy storage device;

[0131] Here, the target charging mode generally refers to the charging method adopted by the charging device when charging the electrical equipment, which will affect the charging time, battery life, charging efficiency, etc. The charging parameters are some charging requirements of the electrical equipment, which can include charging power, charging rate and charging method, wherein the charging method needs to be combined with the charging power or the charging rate.

[0132] Here, the charging rate can be xC, x represents a value greater than 1, for example, an integer or a decimal, for example, when x takes a value of 5, 4.5, 4, 3, 2, 1, the charging rate is 5C, 4.5C, 4C, 3C, 2C, 1C respectively; for example, x can take a value of 0.5 or 0.25, etc. Generally, the charging rate has a corresponding relationship with the charging mode. As an embodiment, when x is greater than or equal to 2, the corresponding charging mode can be considered as super charging mode, when x is greater than or equal to 1 and less than 2, the corresponding charging mode can be considered as fast charging mode, and when x is less than 1, the corresponding charging mode can be considered as slow charging mode.

[0133] In some embodiments, the charging rate corresponding to the first charging mode can be 2C, 3C, 4C, 5C, 5.5C, 6C, 7C, 8C. The charging rate corresponding to the second charging mode can be 1C, 1.5C, 1.75C, 1.25C, etc. The charging rate corresponding to the third charging mode can be 0.1C, 0.5C, 0.75C, 0.8C, etc.

[0134] The target charging mode is one of at least one charging mode supported by the charging device. In some embodiments, some charging devices only support one charging mode, i.e. the first charging mode; then the target charging mode is the first charging mode, and the first charging mode can be a super charging mode in implementation, i.e. the first charging parameter corresponding to the super charging mode, the charging power indicated by the first charging parameter is greater than 300 kilowatts, for example, the charging power indicated by the first charging parameter is 350 kilowatts, for example, the charging power indicated by the first charging parameter is 400 kilowatts, for example, the charging power indicated by the first charging parameter is 450 kilowatts, 500 kilowatts, or 600 kilowatts, etc.

[0135] Some charging devices can support more than two charging modes, the difference between each charging mode is that the charging parameters are different, the charging parameters at least include charging power. In some embodiments, some charging devices can support two charging modes, that is, the charging modes of the charging device include a first charging mode and a second charging mode; then the target charging mode can be the first charging mode or the second charging mode. Among them, the first charging power indicated by the first charging parameter in the first charging mode is greater than the second charging power indicated by the second charging parameter in the second charging mode. In implementation, the first charging mode can be a super charging mode, and the second charging mode can be a fast charging mode or a slow charging mode. In the case of the second charging mode being a fast charging mode, the second charging parameter corresponding to the fast charging mode, the second charging power indicated by the second charging parameter is greater than 150 kilowatts and less than or equal to 300 kilowatts, for example, the second charging power indicated by the second charging parameter is 160 kilowatts, for example, the second charging power indicated by the second charging parameter is 200 kilowatts, for example, the second charging power indicated by the second charging parameter is 260 kilowatts, and so on.

[0136] In the case of the second charging mode being a slow charging mode, the second charging parameter corresponding to the slow charging mode, the second charging power indicated by the second charging parameter is greater than 10 kilowatts and less than or equal to 300 kilowatts, for example, the second charging power indicated by the second charging parameter is 60 kilowatts, for example, the second charging power indicated by the second charging parameter is 200 kilowatts, for example, the second charging power indicated by the second charging parameter is 260 kilowatts, and so on.

[0137] In some embodiments, some charging devices can support three charging modes, that is, the charging modes of the charging device include a first charging mode, a second charging mode and a third charging mode, and then the target charging mode can be one of the first charging mode, the second charging mode or the third charging mode. The third charging power indicated by the third charging parameter in the third charging mode is less than the second charging power indicated by the second charging parameter in the second charging mode. In implementation, the first charging mode can be a super charging mode, the second charging mode can be a fast charging mode, and the third charging mode can be a slow charging mode. In the case of the third charging mode being a slow charging mode, the third charging parameter corresponding to the slow charging mode, the third charging power indicated by the third charging parameter is greater than 10 kilowatts and less than or equal to 150 kilowatts, for example, the third charging power indicated by the third charging parameter is 60 kilowatts, for example, the third charging power indicated by the third charging parameter is 90 kilowatts, for example, the third charging power indicated by the third charging parameter is 120 kilowatts, and so on.

[0138] Of course, the charging device can also support four or more charging modes. As for the relationship between the charging modes of the charging device and the target charging mode, those skilled in the art can make corresponding settings according to actual needs, which will not be repeated here.

[0139] In some embodiments, the charging device supports a second charging mode in the charging mode, and in a case where the target charging mode includes the second charging mode, the target charging parameter corresponding to the second charging mode includes a second charging parameter, and the charging power indicated by the second charging parameter is less than or equal to the first charging parameter. The electrical equipment is charged based on the second charging parameter corresponding to the second charging mode.

[0140] In some embodiments, the charging device supports a third charging mode in the charging mode, and in a case where the target charging mode includes the third charging mode, the target charging parameter corresponding to the third charging mode includes a third charging parameter, and the charging power indicated by the third charging parameter is less than or equal to the second charging parameter. The electrical equipment is charged based on the third charging parameter corresponding to the third charging mode.

[0141] Step S303: Charge the electrical equipment based on the target charging parameter corresponding to the target charging mode.

[0142] In a case where the target charging mode includes the first charging mode, the target charging parameter corresponding to the first charging mode includes the first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts.

[0143] In some embodiments, the target charging mode of the charging device can be one of the first charging mode, the second charging mode and the third charging mode, wherein the charging power indicated by the first charging parameter in the first charging mode is greater than the charging power indicated by the second charging parameter in the second charging mode, and the charging power indicated by the third charging parameter in the third charging mode is less than the charging power indicated by the second charging parameter in the second charging mode, for example, the charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts, and the charging power indicated by the second charging parameter in the second charging mode is less than or equal to 300 kilowatts.

[0144] The following is a specific description of the case where the target charging mode is the first charging mode or the second charging mode:

[0145] In a case where the target charging mode is the first charging mode and the energy storage device can charge the electrical equipment with the first charging parameter, the electrical equipment is charged based on the first charging parameter.

[0146] In a case where the target charging mode is the second charging mode and the energy storage device can charge the electrical equipment with the second charging parameter, the electrical equipment is charged based on the second charging parameter.

[0147] Here, the energy storage device is a device used to store electrical energy or other forms of energy, and its main function is to balance between power demand and supply, improve the stability and reliability of the power system.

[0148] It should be noted that, in some embodiments, the input power of the energy storage device is less than 150 kilowatts; in the first charging mode, the output power of the energy storage device is greater than or equal to 300 kilowatts. Wherein, the input power of the energy storage device is related to the input power of the charging device, and the input power of the energy storage device comes from the grid input of the charging device.

[0149] The input power of the energy storage device and the input power of the charging device (all-in-one charging and discharging machine) can have the following relationship: for example, the maximum input power (rated input power) of the charging device is less than 150 kilowatts, which can be used to charge the energy storage device and also can be used to charge the connected power equipment, so the maximum input power for charging the energy storage device is also 150 kilowatts. When implementing, the possible reason why the input power of the energy storage device is less than 150 kilowatts is that the installation environment of the charging device is limited by the power grid to provide an input power less than 150 kilowatts (instead of actually having the ability to provide a larger input power, but will be limited below this input power), and the input power of the charging device can be the input power of the energy storage device.

[0150] In the above embodiment, the input power and output power range of the energy storage device are provided, and by controlling the input power or output power of the energy storage device within the corresponding range, the normal operation of the energy storage device is determined.

[0151] In some embodiments, the target charging mode further includes a third charging mode, and in the case that the target charging mode is the third charging mode, the implementation of the above step S303 can be: determining third charging parameters corresponding to the third charging mode; and charging the power equipment with the third charging parameters.

[0152] In the embodiment of the present application, based on the charging demand information of the power equipment, the target charging mode of the charging device for charging the power equipment is determined, and then the power equipment is charged based on the target charging parameters corresponding to the target charging mode. Through this method, in the case that there are multiple charging modes, the most suitable charging mode for the power equipment can be determined based on the charging demand information of the power equipment.

[0153] In some embodiments, the implementation of the above step S301 can include step S3011 and step S3012:

[0154] Step S3011: in response to the charging event, receiving the charging request message sent by the charging gun or the user end, and the charging request message includes the attribute information of the battery of the power equipment; the attribute information of the battery at least includes: a plurality of charging parameters suitable for the power equipment;

[0155] Here, the user end refers to the program corresponding to the server that provides local services to the user. In this application, the user end can refer to the application installed on the mobile device associated with the charging system or the human-machine interface of the charging system, charging device, etc. The charging request message can be a charging request message triggered by the user connecting the charging gun to the power-consuming device, or it can be a charging request message triggered after the user configures the charging requirements of the power-consuming device on the terminal interface. The attribute information of the battery is used to characterize the parameters such as the model of the battery of the power-consuming device.

[0156] Step S3012: Determine the charging requirement information of the power-consuming device based on the attribute information of the battery.

[0157] In some embodiments, the implementation of the above step S3012 may be: determining the charging requirement information of the electric device based on the attribute information of the battery and the charging strategy, wherein the charging strategy is set for the electric device or the charging device.

[0158] Here, the charging strategy refers to the selection of a method for charging the battery of an electrical device, wherein the charging strategy can be set from dimensions such as expected charging power, expected charging time, and expected charging cost. For example, in the direction of expected charging time, the user can input the expected charging time to match the corresponding charging mode; in the direction of expected charging cost, the user can input the expected charging cost to match the corresponding charging mode; in the direction of expected charging power, the user can input the expected charging power to match the corresponding charging mode.

[0159] In the above embodiment, the charging requirement information of the electric device can be determined based on the attribute information of the battery and the charging strategy, and then the target charging mode of the charging device can be matched with the charging requirement information.

[0160] In some embodiments, the implementation of step S3012 may include step S30121 and step S30122:

[0161] Step S30121: Determine and output estimated consumption parameter values ​​corresponding to a plurality of charging modes based on the battery attribute information, the estimated consumption parameter values ​​including estimated charging duration and / or estimated charging cost;

[0162] In some embodiments, based on the attribute information of the battery of the electric device, the amount of electricity required for the current electric device to complete charging can be determined, and then the estimated charging time for completing the charging of the electric device corresponding to each charging mode can be determined based on the amount of electricity required for completing the charging of the electric device. Then, based on the estimated charging time, the price of electricity corresponding to the charging period can be determined, and then the estimated charging cost of the electric device can be determined. The estimated charging time and estimated charging cost of each charging mode can be displayed on the human-machine interface of the charging device, terminal such as a mobile phone, etc.

[0163] For example, based on the attribute information of the battery of the power-using device, it can be determined that the power required for the current power-using device to complete charging is 20 degrees. Then, by the charging power required by the power-using device, it is determined that, in the case that the current power-using device completes charging, the estimated charging time in the first charging mode is 10 minutes, and the estimated charging cost is 15 yuan; the estimated charging time in the second charging mode is 40 minutes, and the estimated charging cost is 20 yuan; the estimated charging time in the third charging mode is 60 minutes, and the estimated charging cost is 30 yuan.

[0164] Step S30122: In response to the selection operation on the plurality of estimated consumption parameter values, the selected estimated consumption parameter value is determined as the charging demand information of the power-using device.

[0165] In some embodiments, the determined estimated consumption parameter value corresponding to each charging mode can be displayed on the human-computer interface, so that the user can select a charging mode through the human-computer interface, and then the user-selected charging mode is used as the charging demand information of the power-using device, or the user does not select a charging mode within a preset time period, and a default charging mode is set as the charging demand information of the power-using device.

[0166] In the above embodiments, by determining the estimated consumption parameter values corresponding to the plurality of charging modes, the selected estimated consumption parameter value is determined as the charging demand information of the power-using device.

[0167] In some embodiments, the implementation of the above step S302 can include: based on the charging demand information, determining, from at least one charging mode of the charging device, a target charging parameter of the charging device for charging the power-using device; the at least one charging mode of the charging device includes the first charging mode.

[0168] In some embodiments, the target charging mode of the charging device for charging the power-using device can be determined from at least one charging mode of the charging device in terms of the estimated charging time; the target charging mode of the charging device for charging the power-using device can also be determined from at least one charging mode of the charging device in terms of the estimated charging cost; the target charging mode of the charging device for charging the power-using device can also be determined from at least one charging mode of the charging device in terms of the estimated charging time and the estimated charging cost.

[0169] In the above embodiments, by using the charging demand information of the power-using device, the target charging parameter of the charging device for charging the power-using device is determined, and by this method, the charging device can charge the power-using device with the target charging parameter.

[0170] In some embodiments, when the charging demand information comprises the expected charging duration, the implementation of determining the target charging parameter of the charging device for charging the electrical equipment from the at least one charging mode of the charging device based on the charging demand information can be:

[0171] Step S3021: determining the estimated charging duration corresponding to each charging mode of the at least one charging mode of the charging device.

[0172] For example, the estimated charging duration of the first charging mode is 15 min, the estimated charging duration of the second charging mode is 40 min, and the estimated charging duration of the third charging mode is 65 min.

[0173] Step S3022: determining the duration difference between the expected charging duration and the estimated charging duration of each charging mode.

[0174] In some embodiments, the user can input the expected charging duration in the human-computer interface. After receiving the expected charging duration input by the user, the charging device determines the duration difference between the expected charging duration and the estimated charging duration of each charging mode based on the expected charging duration and the estimated charging duration of each charging mode. When the estimated charging duration of the charging mode is less than the input expected charging duration, the absolute value of the calculated duration difference can be determined as the final difference result.

[0175] For example, the expected charging duration is 13 min, the estimated charging duration of the first charging mode is 15 min, the estimated charging duration of the second charging mode is 40 min, and the estimated charging duration of the third charging mode is 65 min. The duration difference between the first charging mode and the expected charging duration is 2 min, the duration difference between the second charging mode and the expected charging duration is 27 min, and the duration difference between the third charging mode and the expected charging duration is 52 min.

[0176] Alternatively, the expected charging duration is 20 min, the estimated charging duration of the first charging mode is 15 min, the estimated charging duration of the second charging mode is 40 min, and the estimated charging duration of the third charging mode is 65 min. The duration difference between the first charging mode and the expected charging duration is 5 min, the duration difference between the second charging mode and the expected charging duration is 20 min, and the duration difference between the third charging mode and the expected charging duration is 45 min.

[0177] Step S3023: determining the charging mode corresponding to the minimum duration difference among all duration differences as the target charging mode.

[0178] In some embodiments, in the case that all time length differences are not equal, the charging mode corresponding to the minimum time length difference can be determined as the target charging mode; in the case that there are two equal time length differences and both are minimum, the charging mode corresponding to the minimum estimated charging time can be determined as the target charging mode.

[0179] For example, the expected charging time is 30 min, the estimated charging time of the first charging mode is 15 min, the estimated charging time of the second charging mode is 40 min, and the estimated charging time of the third charging mode is 65 min. The time length difference between the first charging mode and the expected charging time is 15 min, the time length difference between the second charging mode and the expected charging time is 10 min, and the time length difference between the third charging mode and the expected charging time is 35 min. It can be determined that the second charging mode is the target charging mode.

[0180] Alternatively, the expected charging time is 20 min, the estimated charging time of the first charging mode is 15 min, the estimated charging time of the second charging mode is 25 min, and the estimated charging time of the third charging mode is 65 min. The time length difference between the first charging mode and the expected charging time is 5 min, the time length difference between the second charging mode and the expected charging time is 5 min, and the time length difference between the third charging mode and the expected charging time is 45 min. It can be determined that the first charging mode is the target charging mode.

[0181] In the above embodiments, the target charging mode is determined based on the difference between the expected charging time and the estimated charging time of each charging mode. By this method, the charging mode that best matches the user's charging demand can be quickly determined.

[0182] In some embodiments, the target charging parameter also indicates a target charging method. In the case that the target charging method includes the first charging method, the charging of the electrical equipment based on the target charging parameter corresponding to the target charging mode can include:

[0183] Step S304: providing all the charging power indicated by the target charging parameter for the electrical equipment by the energy storage device;

[0184] In the case that the target charging method includes the second charging method, the charging of the electrical equipment based on the target charging parameter corresponding to the target charging mode can include:

[0185] Step S305: providing a part of the charging power indicated by the target charging parameter for the electrical equipment by the power grid, and providing another part of the charging power indicated by the target charging parameter for the electrical equipment by the energy storage device; the part of the charging power includes a part or all of the charging power that can be provided by the power grid.

[0186] The power grid can be understood as a system that provides power, such as a city power supply, etc.

[0187] For example, the target charging mode is the first charging mode, and the implementation of the steps S304 and S305 includes:

[0188] In the first charging mode, the energy storage device provides all the charging power indicated by the first charging parameter to the electrical equipment; or in the first charging mode, the power grid provides part of the charging power indicated by the first charging parameter to the electrical equipment, and the energy storage device provides the other part of the charging power indicated by the first charging parameter to the electrical equipment; the part of the charging power includes part or all of the charging power that the power grid can provide.

[0189] The energy storage device provides all the charging power indicated by the first charging parameter to the electrical equipment corresponds to the first charging mode; the power grid provides part of the charging power indicated by the first charging parameter to the electrical equipment, and the energy storage device provides the other part of the charging power indicated by the first charging parameter to the electrical equipment corresponds to the second charging mode.

[0190] In some embodiments, the charging mode of the energy storage device and the power grid charging the electrical equipment includes a first charging mode, a second charging mode, and a third charging mode, wherein the first charging mode is to provide all the power to the electrical equipment by the energy storage device, the third charging mode is to provide all the power to the electrical equipment by the power grid, and the second charging mode is to provide part of the required power to the electrical equipment by the energy storage device and to provide the other part of the required power to the electrical equipment by the power grid.

[0191] For example, the target charging mode is the first charging mode, and the implementation of the steps S304 and S305 includes:

[0192] In the first charging mode, the electrical equipment is charged by the first charging mode or the second charging mode; in the first charging mode, the first charging mode is to provide all the charging power indicated by the first charging parameter to the electrical equipment by the energy storage device; or in the first charging mode, the second charging mode is to provide part of the charging power indicated by the first charging parameter to the electrical equipment by the power grid and to provide the other part of the charging power indicated by the first charging parameter to the electrical equipment by the energy storage device; the part of the charging power includes part or all of the charging power that the power grid can provide.

[0193] In the above embodiments, two charging methods are provided, i.e., the energy storage device provides power for the electrical equipment, and the energy storage device and the power grid jointly provide power for the electrical equipment, so that the corresponding charging method can be matched according to the charging demand of different scenes.

[0194] In some embodiments, before charging the electrical equipment based on the target charging mode corresponding to the target charging parameter, the method further comprises: determining an estimated charging period; in the case that the estimated charging period falls within the first period of power supply of the power grid, determining that the target charging mode is the first charging mode; in the case that the estimated charging period falls within the second period, determining that the target charging mode is the second charging mode; in the case that a first sub-period of the estimated charging period falls within the first period of power supply of the power grid, determining that the target charging mode is the first charging mode within the first sub-period, and in the case that a second sub-period of the estimated charging period falls within the second period of power supply of the power grid, determining that the target charging mode is the second charging mode within the second sub-period; wherein the first period and the second period are different, the electricity price of the first period is higher than that of the second period, and / or the power grid electricity demand corresponding to the first period is different from that corresponding to the second period. The estimated charging period at least includes the first sub-period and the second sub-period. That is, the charging mode may be switched within the estimated charging period.

[0195] Here, the first period and the second period are different, which means that the first period and the second period have no intersection.

[0196] In some embodiments, the first period is in accordance with one charging mode, and the second period is in accordance with another charging mode, because the electricity prices of the two periods are different. In other embodiments, the first period is in accordance with one charging mode, and the second period is in accordance with another charging mode, because the electricity prices of the two periods are the same, for example, the electricity price of the night (corresponding to the second period) and the day (corresponding to the first period) is the same, but the power grid electricity demand of the two periods is different. In other embodiments, the first period is in accordance with one charging mode, and the second period is in accordance with another charging mode, because not only the electricity prices of the two periods are different, for example, the electricity prices of the night (corresponding to the second period) and the day (corresponding to the first period) are different, but also the power grid electricity demand of the two periods is different, for example, the power grid electricity demand of the day is greater than that of the night.

[0197] In some embodiments, the process of selecting a specific charging method in the first charging mode and the second charging mode is described, including steps S306 and S307:

[0198] Step S306: determining the target charging mode based on the estimated charging period in the target charging mode; the target charging mode includes the first charging mode and the second charging mode;

[0199] In some embodiments, the estimated charging duration in the target charging mode can be determined first; then, based on the start charging time of the charging event and the estimated charging duration, the estimated charging period in the target charging mode is determined. The estimated charging period is a period to be charged, which can be a period starting from the current time or a future period starting from a future time.

[0200] According to different power demands, the time of a day is divided into different periods to determine the electricity price in different periods, which can include a first period and a second period. The first period represents the period with the highest power demand in a day, such as the busy period in the morning and afternoon, and the electricity price in the first period is higher. The second period represents the period other than the first period in a day, such as the period at midnight and noon, and the electricity price in the second period is lower than that in the first period. Therefore, the same charging equipment with the same charging demand is charged in the same target charging mode in different periods, and the corresponding charging cost is different. For example, the charging cost corresponding to charging the charging equipment when the estimated charging period is in the first period is higher than the charging cost corresponding to charging the charging equipment when the estimated charging period is in the second period.

[0201] In some embodiments, the implementation of the above step S306 can include steps S3061 and S3062:

[0202] Step S3061: In the case where the estimated charging period falls within the first period of power grid power supply, the target charging mode is determined to be the first charging mode.

[0203] Here, in the case where the estimated charging period falls within the first period of power grid power supply, the electricity price of the power grid is relatively high, and therefore, in order to save the charging cost, the charging equipment can be charged only by the energy storage device.

[0204] In some embodiments, the ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:4. It should be noted that the unit of rated energy is generally watt-hour (Wh), and the unit of power is watt (W). Here, the ratio between the rated energy and the rated power is a numerical ratio, which is less than or equal to 1:4.

[0205] In some embodiments, the energy storage device and / or the charging device satisfy one or more of the following conditions:

[0206] The ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:4;

[0207] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0208] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0209] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0210] In this way, the volume of the battery can be relatively small and / or the capacity is small, but the output power is large, thereby saving the floor area, saving the site cost and being more economical, etc.

[0211] Step S3062: In the case where the estimated charging period falls within a second period other than the first period, determining that the target charging mode is a second charging mode.

[0212] Wherein, the price of the first period is higher than the price of the second period and / or the power demand of the first period is different from the power demand of the second period.

[0213] Here, in the case where the estimated charging period falls within the second period of the power grid, the price of the power grid is lower than that of the first period, so the charging of the power equipment can be performed by the energy storage device and the power grid at the same time.

[0214] It should be noted that, for the price of power in different periods, not only can the charging of the power equipment by the power grid be applied to save the charging cost of the user, but also the energy storage device can be charged in the case where the current period is the second period, and the power equipment can be charged by the energy storage device in the first period to perform the price arbitrage of the charging device. Similarly, the power equipment can be discharged to the power grid in the first period, and the power equipment can be charged in the second period to perform the price arbitrage of the power equipment.

[0215] In the above embodiment, based on the price of power in different periods, the charging method corresponding to the period is determined, so that the first charging mode is adopted when the price of power is the highest, and the second charging mode is adopted in other periods, thereby saving the charging cost of the power equipment.

[0216] Step S307: Adopting the target charging mode to charge the power equipment with the charging power corresponding to the first charging mode.

[0217] In the above embodiment, based on the estimated charging period in the target charging mode, the target charging mode is determined, and the corresponding charging mode is performed according to the different price of power corresponding to the estimated charging period of the power equipment, thereby saving the charging cost of the power equipment.

[0218] In some embodiments, determining whether the energy storage device can charge the electrical device at the target charging parameter can obtain the (maximum) output power of the energy storage device according to the current electrical parameter of the battery pack in the energy storage device. The current electrical parameter can include a state of charge value and / or a state of energy value. In implementation, the BMS in the battery pack determines the current state of charge value (SOC, State Of Charge) of each cell, and determines the output power of the corresponding current battery pack according to the current SOC of the cell, and sends the current output power to the charging control device in the charging device connected with the charging gun, and the charging device combines the current output power and the charging demand at the vehicle end to control the voltage and current.

[0219] The embodiments of the present application provide a charging method, as shown in the method can include steps S401 to S405: Figure 4

[0220] Step S401: in response to a charging event, determining charging demand information of an electrical device;

[0221] Step S402: determining a target charging mode of a charging device for charging the electrical device based on the charging demand information, wherein the target charging mode corresponds to a charging parameter;

[0222] Step S403: obtaining a current state of charge value and / or a state of energy value of an energy storage device;

[0223] Here, SOC refers to the ratio of the current remaining charge amount of the battery to the rated charge amount. The state of energy value (SOE, State of Energy) refers to the ratio of the current remaining energy (releasable energy) of the battery to the rated energy.

[0224] In some embodiments, the state of charge value and / or the state of energy value of the energy storage device can be determined by the energy storage BMS in the energy storage device.

[0225] Step S404: determining whether the energy storage device can charge the electrical device at the target charging parameter based on the state of charge value and / or the state of energy value;

[0226] Step S405: in the case that the energy storage device can charge the electrical device at the target charging parameter, charging the electrical device based on the target charging parameter.

[0227] In some embodiments, the implementation of step S404 can refer to step S4041 and step S4042:

[0228] ​Step S4041: In the case that the state of charge value is greater than or equal to the first state of charge threshold value, and / or the state of remaining energy value is greater than or equal to the first state of remaining energy threshold value, it is determined that the energy storage device supports charging the electrical equipment according to the charging power corresponding to the first charging mode.

[0229] For example, the first state of charge threshold value is 50%, the first state of remaining energy threshold value is 50%, the state of charge value of the energy storage device is 95%, and the state of remaining energy value is 89%. In the case that 95%>50% and 89%>50%, it is determined that the energy storage device supports charging the electrical equipment according to the first charging mode. Or, the first state of charge threshold value is 50%, the first state of remaining energy threshold value is 50%, the state of charge value of the energy storage device is 50%, and the state of remaining energy value is 50%. In the case that 50%=50% and 50%=50%, it is determined that the energy storage device supports charging the electrical equipment according to the first charging mode.

[0230] Step S4042: In the case that the state of charge value is less than the first state of charge threshold value and greater than or equal to the second state of charge threshold value, and / or the state of remaining energy value is less than the first state of remaining energy threshold value and greater than or equal to the second state of remaining energy threshold value, it is determined that the energy storage device supports charging the electrical equipment according to the charging power corresponding to the second charging mode.

[0231] For example, the first state of charge threshold value is 50%, the second state of charge threshold value is 20%, the first state of remaining energy threshold value is 50%, the second state of remaining energy threshold value is 20%, the state of charge value of the energy storage device is 49%, and the state of remaining energy value is 20%. In the case that 50%>49%>20% and 50%>20%=20%, it is determined that the energy storage device supports charging the electrical equipment according to the second charging mode. Or, the first state of charge threshold value is 50%, the second state of charge threshold value is 20%, the first state of remaining energy threshold value is 50%, the second state of remaining energy threshold value is 20%, the state of charge value of the energy storage device is 20%, and the state of remaining energy value is 39%. In the case that 50%>20%=20% and 50%>39%>20%, it is determined that the energy storage device supports charging the electrical equipment according to the second charging mode.

[0232] In the above embodiment, based on the current state of charge value and / or the state of remaining energy value, the charging mode that can be currently supported by the energy storage device can be determined, so that the charging mode that can be supported by the energy storage device is determined quickly.

[0233] In other embodiments, the implementation of the above step S404 can also refer to steps S4043 to S4045:

[0234] Step S4043: outputting a first prompt message in a case where the state of charge value is less than the first state of charge threshold value, and / or the state of energy remaining value is less than the first state of energy remaining threshold value, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode;

[0235] In some embodiments, in a case where the state of charge value is less than the first state of charge threshold value, and / or the state of energy remaining value is less than the first state of energy remaining threshold value, it is determined that the energy storage device does not support charging the electrical device in the first charging mode; and in a case where it is determined that the energy storage device does not support charging the electrical device in the first charging mode, a first prompt message is outputted, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode.

[0236] In implementation, in a case where the state of charge value is less than the first state of charge threshold value, and the state of energy remaining value is greater than or equal to the first state of energy remaining threshold value, it is determined that the energy storage device does not support charging the electrical device in the first charging mode; or in a case where the state of charge value is greater than or equal to the first state of charge threshold value, and the state of energy remaining value is less than the first state of energy remaining threshold value, it is determined that the energy storage device does not support charging the electrical device in the first charging mode; or in a case where the state of charge value is less than the first state of charge threshold value, and the state of energy remaining value is less than the first state of energy remaining threshold value, it is determined that the energy storage device does not support charging the electrical device in the first charging mode.

[0237] For example, the first state of charge threshold value is 50%, the first state of energy remaining threshold value is 50%, the state of charge value of the energy storage device is 40%, and the state of energy remaining value of the energy storage device is 60%; in a case where 40%<50% and 60%>50%, it is determined that the energy storage device does not support charging the electrical device in the first charging mode.

[0238] Or, the first state of charge threshold value is 50%, the first state of energy remaining threshold value is 50%, the state of charge value of the energy storage device is 55%, and the state of energy remaining value of the energy storage device is 20%; in a case where 55%>50% and 20%<50%, it is determined that the energy storage device does not support charging the electrical device in the first charging mode.

[0239] Or, the first state of charge threshold value is 50%, the first state of energy remaining threshold value is 50%, the state of charge value of the energy storage device is 20%, and the state of energy remaining value of the energy storage device is 30%; in a case where 20%<50% and 30%<50%, it is determined that the energy storage device does not support charging the electrical device in the first charging mode.

[0240] Step S4044: outputting a second prompt message in a case where the state of charge value is less than the second state of charge threshold value, and / or the state of energy value is less than the second state of energy threshold value, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode;

[0241] In some embodiments, in a case where the state of charge value is less than the second state of charge threshold value, and / or the state of energy value is less than the second state of energy threshold value, it is determined that the energy storage device does not support charging the electrical device in the second charging mode; in a case where it is determined that the energy storage device does not support charging the electrical device in the second charging mode, a second prompt message is outputted, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode.

[0242] In implementation, in a case where the state of charge value is less than the second state of charge threshold value, and the state of energy value is less than the first state of energy threshold value and greater than or equal to the second state of energy threshold value, it is determined that the energy storage device does not support charging the electrical device in the second charging mode; or, in a case where the state of charge value is less than the first state of charge threshold value and greater than or equal to the second state of charge threshold value, and the state of energy value is less than the second state of energy threshold value, it is determined that the energy storage device does not support charging the electrical device in the second charging mode; or, in a case where the state of charge value is less than the second state of charge threshold value, and the state of energy value is less than the second state of energy threshold value, it is determined that the energy storage device does not support charging the electrical device in the second charging mode.

[0243] For example, the first state of charge threshold value is 50%, the second state of charge threshold value is 20%, the first state of energy threshold value is 50%, the second state of energy threshold value is 20%, the state of charge value of the energy storage device is 30%, and the state of energy value of the energy storage device is 20%, then, in a case where 30%<50%, and 50%>20%=20%, it is determined that the energy storage device does not support charging the electrical device in the second charging mode.

[0244] Or, the first state of charge threshold value is 50%, the second state of charge threshold value is 20%, the first state of energy threshold value is 50%, the second state of energy threshold value is 20%, the state of charge value of the energy storage device is 20%, and the state of energy value of the energy storage device is 30%, then, in a case where 50%>20%=20%, and 30%<50%, it is determined that the energy storage device does not support charging the electrical device in the second charging mode.

[0245] Or, the first state of charge threshold value is 50%, the second state of charge threshold value is 20%, the first state of energy threshold value is 50%, the second state of energy threshold value is 20%, the state of charge value of the energy storage device is 15%, and the state of energy value of the energy storage device is 10%, then, in a case where 15%<20%, and 10%<20%, it is determined that the energy storage device does not support charging the electrical device in the second charging mode.

[0246] Step S4045: In response to the charging mode selected based on the first prompt message or the second prompt message, determining the selected charging mode as the target charging mode.

[0247] In the above embodiments, in a case where it is determined that the energy storage device is unable to charge the electrical equipment in the target charging mode, in response to the charging mode selected based on the first prompt message or the second prompt message, the selected charging mode is determined as the target charging mode, and the electrical equipment is charged by using the charging parameter corresponding to the re-determined target charging mode.

[0248] The case where the energy storage device is unable to charge the electrical equipment in the target charging mode will be described in detail below by taking the target charging mode as the first charging mode and the second charging mode as an example:

[0249] In some embodiments, the implementation of the case where the energy storage device is unable to charge the electrical equipment in the first charging mode can include steps S4046 and S4047:

[0250] S4046: In a case where the target charging mode is the first charging mode and the energy storage device is unable to charge the electrical equipment in the first charging parameter, determining a second charging parameter corresponding to a second charging mode;

[0251] S4047: Charging the electrical equipment by using the second charging parameter.

[0252] In the above embodiments, in a case where it is determined that the energy storage device does not support charging the electrical equipment in the first charging mode, the electrical equipment is charged by using the second charging parameter corresponding to the second charging mode, thereby reducing the time length of the determination process of the target charging mode, and further improving the charging time length of the electrical equipment.

[0253] In some embodiments, the implementation of the case where the energy storage device is unable to charge the electrical equipment in the second charging mode can include steps S4048 and S4049:

[0254] Step S4048: In a case where the target charging mode is the second charging mode and the energy storage device is unable to charge the electrical equipment in the second charging parameter, determining a third charging parameter corresponding to a third charging mode;

[0255] Step S4049: Charging the electrical equipment by using the third charging parameter.

[0256] In the above embodiment, when it is determined that the energy storage device does not support charging the electrical device according to the second charging mode, the third charging parameter corresponding to the third charging mode is determined, and the electrical device is charged with the third charging parameter, thereby reducing the duration of the target charging mode determination process and thereby increasing the charging time of the electrical device.

[0257] In an embodiment of the present application, first, the current state of charge value and / or remaining energy state value of the energy storage device is obtained, and then, based on the state of charge value and / or remaining energy value, when it is determined that the energy storage device supports charging the electrical device according to the target charging mode, the electrical device can be charged with the target charging parameters corresponding to the target charging mode.

[0258] This embodiment of the present application provides a charging method, which may include steps S410 to S412:

[0259] Step S410: In response to a charging event, based on the charging demand information of the electric device, determining an estimated charging period for the electric device and a target charging mode for the charging apparatus to charge the electric device;

[0260] Step S411: determining a target charging method for charging the electrical device during the estimated charging period;

[0261] Step S412: Based on the target charging mode, charging the electrical device with target charging parameters corresponding to the target charging mode;

[0262] In which case, when the target charging mode includes the first charging mode, the target charging parameter corresponding to the first charging mode includes the first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts.

[0263] It should be noted that the charging method provided in the embodiment of the present application is described from the perspective of the operator of the charging system.

[0264] In an embodiment of the present application, an estimated charging period and a target charging mode of the electric device are determined based on the demand information of the electric device, and thus a charging method for the estimated charging period is determined based on the estimated charging period. In this way, by adopting different charging methods during periods with different electricity prices, the charging cost of the electric device can be saved, thereby attracting more users to charge here and achieving more revenue.

[0265] In some embodiments, the charging method may further include step S413:

[0266] Step S413: When it is determined that charging is completed, the charging fee of the electric device is determined based on the actual charging period of the electric device and the electricity price during the actual charging period.

[0267] Due to grid load fluctuations, a day can be divided into multiple power usage periods, such as a first period and a second period. Different power usage periods correspond to different electricity prices. Therefore, after a device completes charging, the system first determines, based on the device's actual charging period, at least one power usage period entered during the charging period and the corresponding electricity price. The system then determines the charging fee for the device based on the device's charged power and the corresponding electricity price during the at least one power usage period.

[0268] In some embodiments, when one power consumption period is entered during the actual charging time, for example, the first period is entered during the actual charging time, the charging amount of the power consuming device in the first period is 20 degrees, and the electricity price in the first period is 2 yuan, it can be obtained that the charging cost of the power consuming device is 40 yuan.

[0269] In some embodiments, when two power consumption time periods are included in the actual charging period, for example, the first sub-charging period in the actual charging period is included in the first period, and the second sub-charging period is included in the second period. The charging amount of the electric device in the first period is 5 degrees, and the electricity price of the first period is 2 yuan. The charging amount of the electric device in the second period is 15 degrees, and the electricity price of the second period is 1 yuan. It can be obtained that the charging cost of the electric device is 25 yuan.

[0270] In the above embodiment, after the electric device is completed, the charging fee of the electric device can be determined based on the actual charging period of the electric device and the electricity price during the actual charging period, so that the charging fee can be displayed on the human-machine interface, allowing the user to complete the payment after confirming the charging fee.

[0271] In some embodiments, the charging method may further include steps S414 to S416:

[0272] Step S414: if the current time falls within the first time period, determining whether there is a charging event for the electric device;

[0273] Here, the first time period can represent the peak period of power consumption in the power grid. The electricity price in the first time period is the highest in the day. Therefore, when the current time falls into the first time period, the electric energy in the energy storage device can be transmitted to the power grid to achieve electricity price arbitrage.

[0274] It should be noted that the priority of the energy storage device in delivering electric energy to the electric device is higher than that of delivering electric energy to the power grid. Therefore, it is necessary to first determine whether there is a charging event for the electric device.

[0275] In some embodiments, in a case where it is determined that there is no charging event of the electrical device, it can be determined that the energy storage device delivers electric energy to the power grid; in a case where it is determined that there is a charging event of the electrical device, it needs to be determined whether the energy storage device supports delivering electric energy to the electrical device and the power grid at the same time.

[0276] Step S415: estimating the energy consumption of the energy storage device based on the charging event;

[0277] In some embodiments, based on the charging event, the required charging amount of the electrical device and the target charging mode for charging the electrical device can be determined, and then based on the required charging amount of the electrical device and the target charging mode, the charging amount that needs to be provided by the energy storage device to the electrical device can be determined.

[0278] In some embodiments, in a case where the target charging mode is the first charging mode, the required charging amount of the electrical device can be determined as the energy consumption of the energy storage device; in a case where the target charging mode is the second charging mode, the amount of the required charging amount provided by the energy storage device can be determined as the energy consumption of the energy storage device.

[0279] Step S416: determining whether the energy storage device delivers electric energy to the power grid based on the current state of charge value and / or the current residual energy state value of the energy storage device and the energy consumption of the energy storage device.

[0280] In some embodiments, whether the energy storage device delivers electric energy to the power grid can be determined based on the current state of charge value of the energy storage device and the energy consumption of the energy storage device; whether the energy storage device delivers electric energy to the power grid can also be determined based on the current residual energy state value of the energy storage device and the energy consumption of the energy storage device; whether the energy storage device delivers electric energy to the power grid can also be determined based on the current state of charge value, the current residual energy state value of the energy storage device and the energy consumption of the energy storage device.

[0281] In some embodiments, in a case where the current state of charge value of the energy storage device cannot support providing the energy consumption of the energy storage device, it is determined that the energy storage device cannot deliver electric energy to the power grid. In a case where the current state of charge value of the energy storage device only supports providing the energy consumption of the energy storage device, it is determined that the energy storage device cannot deliver electric energy to the power grid. In a case where the current state of charge value of the energy storage device has a surplus after providing the energy consumption of the energy storage device, it is determined that the energy storage device can deliver electric energy to the power grid.

[0282] In some embodiments, it is determined that the energy storage device cannot deliver electric energy to the power grid in a case where the current residual energy state value of the energy storage device cannot support providing the energy consumption of the energy storage device. It is determined that the energy storage device cannot deliver electric energy to the power grid in a case where the current residual energy state value of the energy storage device can only support providing the energy consumption of the energy storage device. It is determined that the energy storage device can deliver electric energy to the power grid in a case where the current residual energy state value of the energy storage device has a surplus after providing the energy consumption of the energy storage device.

[0283] In the above embodiments, first, in a case where the current time falls within the first time period, it is determined whether there is a charging event of the electric device by the energy storage device, so that the energy storage device can preferentially charge the electric device. Then, in a case where it is determined that there is a charging event, it is determined the energy consumption of the energy storage device for completing charging of the electric device, so that electric energy can be delivered to the power grid in a case where the energy consumption of the energy storage device meets the demand of the charging event, thereby electric energy can be delivered to the power grid in a case where the electric device is charging, so as to realize electricity price arbitrage and increase revenue.

[0284] The embodiments of the present application provide a charging method, which can include steps S420 to S422:

[0285] Step S420: In response to selection of a charging mode, obtaining a current state of charge value and / or a residual energy state value of an energy storage device in a charging device;

[0286] Step S421: Based on the state of charge value and / or the residual energy state value, determining whether the energy storage device can charge the electric device with target charging parameters corresponding to a target charging mode; the target charging mode is a charging mode of the charging device for charging the electric device;

[0287] Step S422: In a case where it is determined that the energy storage device can charge the electric device with the target charging parameters, charging the electric device based on the target charging parameters;

[0288] Wherein, the energy storage device and / or the charging device meet one or more of the following conditions:

[0289] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0290] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0291] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0292] It should be noted that the charging method provided by the embodiments of the present application is described from the perspective of the charging mode supported by the charging device.

[0293] In the embodiments of the present application, first, the current state of charge value and / or the remaining energy state value of the energy storage device are obtained, and then, based on the state of charge value and the remaining energy value, in a case where it is determined that the energy storage device supports charging the electrical equipment in the target charging mode, the electrical equipment is charged with the target charging parameters corresponding to the target charging mode.

[0294] In some embodiments, the above step S421 can further include steps S4211-S4213:

[0295] Step S4211: In a case where the state of charge value is less than the first state of charge threshold value, and / or the remaining energy state value is less than the first remaining energy threshold value, a first prompt message is output, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode;

[0296] Step S4212: In a case where the state of charge value is less than the second state of charge threshold value, and / or the remaining energy state value is less than the second remaining energy threshold value, a second prompt message is output, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode;

[0297] Step S4213: The selected charging mode is obtained based on the first prompt message or the second prompt message.

[0298] In the above embodiments, in a case where it is determined that the energy storage device does not support charging the electrical equipment in the target charging mode, information for prompting the user that the target charging mode is not supported and the selectable charging mode is output, so that the user can reselect the target charging mode according to the prompted charging mode, and then charge the electrical equipment according to the target charging parameters corresponding to the selected target charging mode.

[0299] The embodiments of the present application provide a charging method, which can include steps S430 and S431:

[0300] Step S430: In response to the selection of the first charging mode, the current state of charge value and / or the remaining energy state value of the energy storage device in the charging device are obtained;

[0301] Step S431: In a case where the state of charge value is greater than or equal to the first state of charge threshold value, and / or the remaining energy state value is greater than or equal to the first remaining energy threshold value, it is determined that the energy storage device supports charging the electrical equipment with the charging power corresponding to the first charging mode;

[0302] The charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts.

[0303] It should be noted that the charging method provided in the embodiments of the present application is described from the perspective of the first charging mode supported by the charging device.

[0304] In the embodiments of the present application, in the case of selecting the first charging mode, it is determined that the energy storage device supports charging the electrical equipment according to the charging power corresponding to the first charging mode based on the current state of charge value and / or the residual energy state value of the energy storage device, so that the electrical equipment can complete charging in the first charging mode.

[0305] The embodiments of the present application provide a charging method, which can include steps S440 and S441:

[0306] Step S440: In response to the selection of the second charging mode, the current state of charge value and / or the residual energy state value of the energy storage device in the charging device are obtained;

[0307] Step S441: In the case that the state of charge value is less than the first state of charge threshold and greater than or equal to the second state of charge threshold, and / or the residual energy state value is less than the first residual energy threshold and greater than or equal to the second residual energy threshold, it is determined that the energy storage device supports charging the electrical equipment according to the charging power corresponding to the second charging mode;

[0308] The charging power indicated by the second charging parameter in the second charging mode is less than or equal to 300 kilowatts.

[0309] It should be noted that the charging method provided in the embodiments of the present application is described from the perspective of the second charging mode supported by the charging device.

[0310] In the embodiments of the present application, in the case of selecting the second charging mode, it is determined that the energy storage device supports charging the electrical equipment according to the charging power corresponding to the second charging mode based on the current state of charge value and / or the residual energy state value of the energy storage device, so that the electrical equipment can complete charging in the second charging mode.

[0311] The embodiments of the present application provide a charging method, which can include steps S450 and S451:

[0312] Step S450: In response to the selection of the charging mode, the current state of charge value and / or the residual energy state value of the energy storage device in the charging device are obtained; wherein the charging mode includes the first charging mode, and the charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts;

[0313] Step S451: In the case that the state of charge value is greater than the third state of charge threshold, and / or the residual energy state value is greater than the third residual energy threshold, the energy storage device provides the electrical equipment with all the power of the charging power indicated by the charging parameter in the charging mode.

[0314] wherein the energy storage device and / or the charging device satisfy one or more of the following conditions:

[0315] a ratio between the rated energy of the energy storage device and the maximum discharging power of the energy storage device is not greater than 1:3;

[0316] an energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0317] a ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0318] In some embodiments, in a case where the state of charge value is greater than a third state of charge threshold, the energy storage device provides all of the charging power indicated by the charging parameter in the charging mode for the electrical device; in a case where the state of remaining energy value is greater than a third state of remaining energy threshold, the energy storage device provides all of the charging power indicated by the charging parameter in the charging mode for the electrical device; in a case where the state of charge value is greater than the third state of charge threshold and the state of remaining energy value is greater than the third state of remaining energy threshold, the energy storage device provides all of the charging power indicated by the charging parameter in the charging mode for the electrical device.

[0319] It should be noted that the charging method provided in the embodiments of the present application is described from the perspective of the energy storage device.

[0320] In the embodiments of the present application, based on the current state of charge value and / or the state of remaining energy value of the energy storage device, it can be determined that the energy storage device can support an operating mode of providing all of the charging power indicated by the charging parameter in the charging mode for the electrical device, so that the energy storage device can be controlled to charge the electrical device alone.

[0321] In some embodiments, the above charging method can further include step S452:

[0322] Step S452: in a case where the state of charge value is less than a third state of charge threshold and greater than or equal to a fourth state of charge threshold, and / or the state of remaining energy value is less than a third state of remaining energy threshold and greater than or equal to a fourth state of remaining energy threshold, the energy storage device provides part of the charging power indicated by the charging parameter for the electrical device.

[0323] Here, after the energy storage device provides part of the charging power indicated by the charging parameter for the electrical device, another part of the charging power is provided by the power grid.

[0324] In some embodiments, when the state of charge value is less than the third state of charge threshold and greater than or equal to the fourth state of charge threshold, the power storage device provides part of the charging power indicated by the charging parameter in the charging mode for the electrical equipment; when the state of residual energy value is less than the third state of residual energy threshold and greater than or equal to the fourth state of residual energy threshold, the power storage device provides part of the charging power indicated by the charging parameter in the charging mode for the electrical equipment; when the state of charge value is less than the third state of charge threshold and greater than or equal to the fourth state of charge threshold, and the state of residual energy value is less than the third state of residual energy threshold and greater than or equal to the fourth state of residual energy threshold, the power storage device provides part of the charging power indicated by the charging parameter in the charging mode for the electrical equipment.

[0325] In the above embodiments, based on the current state of charge value and / or the state of residual energy value of the power storage device, it can be determined that the power storage device can support the operating mode of providing part of the charging power indicated by the charging parameter in the charging mode for the electrical equipment, so that the power storage device and the power grid can jointly charge the electrical equipment.

[0326] In other embodiments, when the state of charge value is less than the fourth state of charge threshold, and / or the state of residual energy value is less than the fourth state of residual energy threshold, the power grid provides all of the charging power indicated by the charging parameter for the electrical equipment.

[0327] In some embodiments, the above charging method can further include steps S453 and S454:

[0328] Step S453: When the state of charge value is greater than or equal to the fifth state of charge threshold, and / or the state of residual energy value is greater than or equal to the fifth state of residual energy threshold, the power storage device transmits electric energy to the power grid;

[0329] In some embodiments, when the state of charge value is greater than or equal to the fifth state of charge threshold, the power storage device transmits electric energy to the power grid; when the state of residual energy value is greater than or equal to the fifth state of residual energy threshold, the power storage device transmits electric energy to the power grid; when the state of charge value is greater than or equal to the fifth state of charge threshold, and the state of residual energy value is greater than or equal to the fifth state of residual energy threshold, the power storage device transmits electric energy to the power grid.

[0330] Step S454: When the state of charge value is less than the sixth state of charge threshold, and / or the state of residual energy value is less than the sixth state of residual energy threshold, the power grid charges the power storage device.

[0331] Wherein the fifth state of charge threshold is greater than the sixth state of charge threshold, and the fifth state of residual energy threshold is greater than the sixth state of residual energy threshold.

[0332] In some embodiments, the energy storage device is charged by the power grid when the state of charge value is less than or equal to the sixth state of charge threshold; the energy storage device is charged by the power grid when the state of remaining energy value is less than or equal to the sixth state of remaining energy threshold; the energy storage device is charged by the power grid when the state of charge value is less than or equal to the sixth state of charge threshold and the state of remaining energy value is greater than or equal to the sixth state of remaining energy threshold.

[0333] In the above embodiments, based on the current state of charge value and / or the state of remaining energy value of the energy storage device, it can be determined that the energy storage device can support the operating mode of delivering electric energy to the power grid by the energy storage device, so that the energy storage device can be controlled to be in the mode of delivering electric energy to the power grid, so as to realize the arbitrage of electric energy in the energy storage device; it can also be determined that the energy storage device can support the operating mode of charging the energy storage device by the power grid, so that the energy storage device can be controlled to be in the mode of charging, so that after the charging of the energy storage device is completed, electric energy can be transmitted to the power grid or the electric device by the energy storage device, so as to realize the profit.

[0334] The embodiments of the present application provide a charging method, which can include steps S460 to S462:

[0335] Step S460: in response to a charging event, sending a state parameter of an energy storage device in a charging device to a charging control device in the charging device; the state parameter includes one or more of the following: a state of charge value, a state of remaining energy value;

[0336] Here, the energy storage device can include a BMS.

[0337] In some embodiments, the state parameter can also include voltage, current, temperature, etc., so that the charging device can determine the current operating state of the energy storage device based on the obtained state parameter of the energy storage device.

[0338] Step S461: receiving the discharge parameter of the energy storage device sent by the charging control device, wherein the discharge parameter of the energy storage device is determined based on a target charging mode for charging the electric device and the state parameter;

[0339] Here, the discharge parameter refers to a series of physical quantities or numerical values describing the discharge characteristics and performance in the discharge process, which can include discharge power, discharge voltage, etc.

[0340] In some embodiments, the target charging mode can be determined by the charging control device in the charging modes supported by the charging device, for example, the charging device supports a first charging mode, a second charging mode and a third charging mode, wherein the charging parameters in the first charging mode, the charging parameters in the second charging mode and the charging parameters in the third charging mode decrease in turn.

[0341] In some embodiments, the determination of the target charging mode can be in response to a charging event, determining charging demand information of the electric device; determining, based on the charging demand information, a target charging mode of the charging device for charging the electric device.

[0342] In some embodiments, after the charging control device determines the target charging mode of the electric device, the charging control device can further determine, based on the received state of charge value and the received state of remaining energy value sent by the BMS of the energy storage device, whether the energy storage device can charge the electric device in the target charging mode corresponding to the target charging parameter.

[0343] In practice, when the state of charge value is greater than or equal to the first state of charge threshold value, and / or the state of remaining energy value is greater than or equal to the first state of remaining energy threshold value, it is determined that the energy storage device supports charging the electric device in the first charging mode corresponding to the charging power; when the state of charge value is less than the first state of charge threshold value and greater than or equal to the second state of charge threshold value, and / or the state of remaining energy value is less than the first state of remaining energy threshold value and greater than or equal to the second state of remaining energy threshold value, it is determined that the energy storage device supports charging the electric device in the second charging mode corresponding to the charging power.

[0344] In some embodiments, when the target charging mode is the first charging mode, the discharge parameter of the energy storage device in the first charging parameter in the first charging mode can be obtained, so that the charging control device can send the discharge parameter in the first charging parameter to the energy storage device.

[0345] In some embodiments, when the target charging mode is the second charging mode, the discharge parameter of the energy storage device in the second charging parameter in the second charging mode can be obtained, so that the charging control device can send the discharge parameter in the second charging parameter to the energy storage device.

[0346] In some embodiments, the charging control device can further determine, based on the charging demand information of the electric device, an estimated charging period of the electric device and a target charging mode of the charging device for charging the electric device; determine a target charging mode of the electric device in the estimated charging period; and determine, based on the target charging mode, a discharge parameter of the energy storage device in the target charging parameter corresponding to the target charging mode.

[0347] For example, when the target charging mode is the first charging mode and the target charging mode is the first charging mode, the discharge parameter of the energy storage device sent by the charging control device to the energy storage device is that the charging power in the first charging parameter corresponding to the first charging mode is the discharge power of the energy storage device.

[0348] In a case where the target charging mode is the first charging mode and the target charging manner is the second charging manner, the discharge parameter of the energy storage device sent by the charging control device to the energy storage device is that part of the charging power in the first charging parameter corresponding to the first charging mode is the discharge power of the energy storage device.

[0349] In a case where the target charging mode is the first charging mode and the target charging manner is the second charging manner, the discharge parameter of the energy storage device sent by the charging control device to the energy storage device is that part of the charging power in the first charging parameter corresponding to the first charging mode is the discharge power of the energy storage device.

[0350] In a case where the target charging mode is the first charging mode and the target charging manner is the second charging manner, the discharge parameter of the energy storage device sent by the charging control device to the energy storage device is that part of the charging power in the first charging parameter corresponding to the first charging mode is the discharge power of the energy storage device.

[0351] Step S462: In a case where the circuit between the energy storage device and the bidirectional DC / DC module of the charging device is turned on, the energy storage device is controlled to discharge according to the discharge parameter.

[0352] In a case where the target charging mode includes the first charging mode, the target charging parameter corresponding to the first charging mode includes the discharge parameter of the energy storage device, and the discharge power indicated by the discharge parameter of the energy storage device is greater than 300 kW.

[0353] It should be noted that the charging method provided in the embodiments of the present application is described from the perspective of the energy storage battery in the energy storage device, and the charging method is applied to the BMS in the energy storage device.

[0354] In the embodiments of the present application, in a case where the discharge parameter of the energy storage device sent by the charging control device is received, the energy storage device is controlled to discharge according to the discharge parameter, so that the charging device can charge the electric equipment with the target charging parameter corresponding to the target charging mode.

[0355] The charging method will be described below in combination with a specific embodiment. In order to facilitate understanding, the electric vehicle is taken as a specific electric equipment, and the battery system module is taken as an energy storage device, and a possible flow applicable to the embodiments of the present application is introduced. However, it should be noted that the embodiment is only used to better illustrate the present application and does not constitute an improper limitation on the present application.

[0356] The embodiments of the present application provide a charging method, as shown in Figure 5 The implementation flowchart of the charging method of the electric vehicle and the battery system is shown in FIG. 5, which can include steps S501 to S514.

[0357] Step S501: standby, detect the plug-in signal of the charging gun;

[0358] Here, after the user successfully connects the electric vehicle with the charging gun, the charging device will receive the signal sent from the charging gun.

[0359] Step S502: whether the charging gun is plugged in place and the communication with the electric vehicle is normal;

[0360] Here, after the charging gun is inserted into the charging port of the electric vehicle, the physical connection between the charging device and the electric vehicle is completed, and then the handshake stage is entered, the communication authentication between the charging device and the electric vehicle is carried out, the communication channel between the charging device and the electric vehicle is determined to be connected, and the communication function between the charging device and the electric vehicle is ensured to be normal.

[0361] If yes (Y), go to step S503; if no (N), go to step S506.

[0362] Step S503: determine whether the battery system module meets the condition of SOC≥q or SOE≥p;

[0363] Here, the SOC value or SOE value of the energy storage battery in the battery system module is obtained first, and then the SOC value of the energy storage battery is compared with the first SOC threshold (q), or the SOE value of the energy storage battery is compared with the first SOE threshold (p). In the case of SOC≥q or SOE≥p, it is determined to enter working mode 1, otherwise, it is determined that working mode 1 is not supported, wherein the value of p can be 50%, and the value of q can be 50%.

[0364] If yes (Y), go to step S504; if no (N), go to step S509.

[0365] Step S504: determine to enter working mode 1, the charging mode in which the battery system module supplies power to the electric vehicle alone;

[0366] Here, the electrical structure of the charging device is introduced, as shown in Figure 6 The charging device mainly includes: P lightning protection devices SPD 61, Q switch devices QF 62, TMS (Thermal Management System) 63, electrically isolated AC / DC low-voltage power supply module 64, electrically isolated bidirectional AC / DC module 65, H fuse devices FU 66, bidirectional DC / DC module 213, battery system module, K insulation detection module 67, high-voltage box 68, electric meter 69 and charging gun 31. Among them, P, Q, H and K are integers greater than 1, for example, P takes the value of 4, Q takes the value of 8, H takes the value of 2, and K takes the value of 2.

[0367] Part or all of the SPD 61, the switch device QF 62, the galvanically isolated AC / DC low-voltage power supply module 64, the galvanically isolated bidirectional AC / DC module 65, the fuse device FU 66, the insulation detection module 67, the high-voltage box 68, the electric meter 69, the bidirectional DC / DC module 213, etc. can be considered as components in the charging and discharging circuit.

[0368] The battery system module includes M battery packs 11, M being an integer greater than 1; the insulation detection module 67 connected between the high-voltage box 68 and the battery system module is used to detect the insulation resistance of the battery system module; the insulation detection module 67 connected between the electric meter 69 and the charging gun 31 is used to detect the insulation resistance of the charging gun; the SPD 61, the TMS 63, the galvanically isolated AC / DC low-voltage power supply module 64, and the galvanically isolated bidirectional AC / DC module 65 are connected in parallel on the AC power supply 70 line, wherein the SPD 61, the TMS 63, and the galvanically isolated bidirectional AC / DC module 65 are connected to the AC power supply 70 through a three-phase wire (3AC+N), and the galvanically isolated AC / DC low-voltage power supply module 64 is connected to the AC power supply 70 through a one-phase wire (A+N). The galvanically isolated AC / DC low-voltage power supply module 64 is used to supply power to the EMS, the CCU, the BMS, etc. When the charging device is working normally, the switch device near the AC power supply 70, the SPD 61, the TMS 63, and the galvanically isolated AC / DC low-voltage power supply module 64 is closed, the galvanically isolated AC / DC low-voltage power supply module 64 is working normally, and the low-voltage control system is working normally, wherein the low-voltage control system includes the BMS and the CCU, etc.

[0369] Here, the charging device can be considered as a charging and discharging all-in-one machine due to the inclusion of the bidirectional DC / DC module, i.e., it can output electric energy to the outside and input electric energy to the energy storage device; the rated power of the charging device (mainly the bidirectional DC / DC module) is less than or equal to 150 kilowatts, the rated power of the energy storage device is greater than or equal to 360 kilowatts, and further the input power of the charging device is less than or equal to 150 kilowatts, and the output power of the charging device is greater than or equal to 360 kilowatts. In addition, the ratio between the rated energy and the rated power of the battery system module as the energy storage device should be less than or equal to 1:4.

[0370] As Figure 7As shown in the figure, a communication architecture diagram of the charging device is shown, in which the BMS 46, TMS 63, fire protection module 48, CCU 49, electrically isolated bidirectional AC / DC module 65 and bidirectional DC / DC module 213 communicate with the EMS 40 through the control unit area network (CAN) protocol respectively; the storage module 45 communicates with the EMS 40 through the RS485 protocol, and the charging gun 31 and CCU 49 communicate through the CAN protocol; the human-machine interface 43 and the communication (such as 4G, 5G, 6G, etc.) module 42 communicate with the EMS 40 through the local area network (LAN).

[0371] like Figure 6 The figure shows the state of the charging device when it enters operating mode 1. This operating mode charges the electrical equipment only through the battery system module, without the need for the power grid to charge the electric vehicle. The arrows in the figure indicate the direction of the flow of electric energy, and the dotted line indicates the path of the electric energy flow. The battery system module discharges the electric energy to the outside, and the electric vehicle is charged by the bidirectional DC / DC module. This operating mode can realize the function of charging electric vehicles at high power (≥360 kilowatts). It should be noted that the ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:4.

[0372] Step S505: Determine whether the stop condition or charging termination condition of working mode 1 is reached;

[0373] Here, the stop conditions of working mode 1 may include battery system module failure, bidirectional DC / DC module failure, vehicle full charge, etc.; the charging cut-off conditions of working mode 1 may include BMS failure, charging device failure, single cell charging cut-off voltage exceeding the limit, single cell temperature exceeding the limit, charging current exceeding the limit, etc.

[0374] If the answer is yes (Y), the process ends; if the answer is no (N), the process proceeds to step S504.

[0375] Step S506: Determine whether the battery system module meets the conditions of SOC≥t1 or SOE≥t2;

[0376] Here, the SOC value or SOE value of the energy storage battery is first obtained, and then the SOC value of the energy storage battery is compared with the second SOC threshold value (t1), or the SOE value of the energy storage battery is compared with the second SOE threshold value (t2). If SOC≥t1 or SOE≥t1 is not satisfied, it is determined to enter working mode 2; otherwise, it is determined that working mode 2 is not supported. Among them, the value of p can be 99%, and the value of q can be 99%.

[0377] If the answer is yes (Y), the process goes to step S501 ; if the answer is no (N), the process goes to step S507 .

[0378] Step S507: Determine to enter working mode 2, a charging mode in which the grid supplies power to the battery system module;

[0379] like Figure 8 As shown, this is the state when the charging device enters working mode 2. The arrow in the figure points to the direction of electric energy flow, and the dotted line is the flow path of electric energy. When the SOC of the energy storage battery ≥ t1 or the SOE of the energy storage battery ≥ t2, the grid charges the battery system module through the electrically isolated bidirectional AC / DC module.

[0380] Step S508: Determine whether the battery system module meets the conditions of SOC≥t1 or SOE≥t2;

[0381] Here, if the answer is yes (Y), the process proceeds to step S501 ; if the answer is no (N), the process proceeds to step S507 .

[0382] Step S509: Determine whether the battery system module meets the conditions of m≤SOC<q or n≤SOE<p;

[0383] Here, the SOC value or SOE value of the energy storage battery is first obtained, and then the SOC value of the energy storage battery is compared with the first SOC threshold (q) and the third SOC threshold (m), or the SOE value of the energy storage battery is compared with the first SOE threshold (p) and the third SOE threshold (n). When m≤SOC<q or n≤SOE<p, it is determined to enter working mode 3; otherwise, it is determined that working mode 3 is not supported, wherein p can be 50%, q can be 50%, n can be 20%, and m can be 20%.

[0384] If the answer is yes (Y), go to step S510 ; if the answer is no (N), go to step S512 .

[0385] Step S510: determining to enter working mode 3, a charging mode in which the battery system module and the power grid jointly supply power to the electric vehicle;

[0386] like Figure 9 The figure shows the charging device in operating mode 3. The arrows in the figure indicate the direction of energy flow, and the dashed line represents the energy flow path. The battery system module discharges energy, and the energy from the battery system module and the grid is used to charge the electric vehicle through the bidirectional DC / DC module. This operating mode allows the charging device to have an input power of ≤150 kW and an output power of ≥360 kW.

[0387] Step S511: Determine whether the stop condition or charging termination condition of working mode 3 is reached;

[0388] Here, the stop conditions of working mode 3 include battery system module failure, bidirectional DC / DC module failure, and the car is fully charged; the charging cutoff conditions of working mode 3 include BMS failure, charging device failure, single cell charging cutoff voltage exceeding the limit, single cell temperature exceeding the limit, and charging current exceeding the limit.

[0389] If the answer is yes (Y), the process ends; if the answer is no (N), the process proceeds to step S510.

[0390] Step S512: Determine whether the battery system module meets the condition of SOC<m or SOE<n;

[0391] Here, the SOC value and SOE value of the energy storage battery are first obtained, and then the SOC value of the energy storage battery is compared with the third SOC threshold value (m), or the SOE value of the energy storage device is compared with the third SOE threshold value (n). When SOC < m or SOE < n, it is determined to enter working mode 4; otherwise, it is determined that working mode 4 is not supported, wherein n can be 20% and m can be 20%.

[0392] If the answer is yes (Y), proceed to step S513.

[0393] Step S513: Determine to enter working mode 4, a charging mode in which the electric vehicle is solely powered by the power grid;

[0394] like Figure 10 As shown, this is the state when the charging device enters working mode 4. In this working mode, the power grid only charges the power-consuming equipment, and the battery system module does not need to charge the electric vehicle. As shown in the figure, the arrow points to the direction of the flow of electric energy, and the dotted line is the flow path of electric energy. The power grid charges the electric vehicle through the bidirectional DC / DC module. At this time, the battery system module is in a floating charge state.

[0395] Step S514: Determine whether the stop condition or charging termination condition of working mode 4 is reached;

[0396] Here, the stop conditions of working mode 4 include battery system module failure, bidirectional DC / DC device failure, and the vehicle is fully charged. The charging cutoff conditions of working mode 4 include: BMS failure, charging device failure, single cell charging cutoff voltage exceeding the limit, single cell temperature exceeding the limit, and charging current exceeding the limit.

[0397] If the answer is yes (Y), the process ends; if the answer is no (N), the process proceeds to step S513.

[0398] The present application embodiment provides a charging method, such as Figure 11 As shown, a schematic flow chart of a method for implementing a power supply method for an electric vehicle and a battery system module to a power grid is provided, which may include steps S701 to S707:

[0399] Step S701: Standby;

[0400] Here, standby can be understood as the charging device is not currently in any working mode.

[0401] Step S702: Whether a battery to grid (BtoG) discharge instruction is received;

[0402] Here, the user sets the working mode to BtoG mode in the human-machine interface of the electric vehicle. After the setting is successful, the BtoG command can be sent to the charging device.

[0403] If the answer is yes (Y), go to step S703; if the answer is no (N), go to step S701.

[0404] Step S703: Whether the conditions for the vehicle to feed back electric energy to the grid are met;

[0405] Here, the conditions for the vehicle to feed back power to the grid include orderly charging control instructions, sufficient vehicle charge (e.g., high SOC), etc. If the conditions for the vehicle to feed back power to the grid are met, it is determined to enter operating mode 5; otherwise, it is determined to enter operating mode 6.

[0406] If the answer is yes (Y), the process goes to step S704 ; if the answer is no (N), the process goes to step S706 .

[0407] Step S704: determining to enter working mode 5, a BtoG mode in which the electric vehicle supplies power to the grid;

[0408] like Figure 12 As shown, this is the state when the charging device enters working mode 5, entering the BtoG mode where the electric vehicle supplies power to the grid. The arrow in the figure points to the direction of electric energy flow, and the dotted line is the flow path of electric energy. The electric vehicle transmits electric energy to the grid through the electrically isolated bidirectional AC / DC module.

[0409] Step S705: whether the stop condition of working mode 5 is met;

[0410] Here, the stop conditions of working mode 5 include BMS failure, electric vehicle failure, single cell charging cut-off voltage exceeding the limit, single cell temperature exceeding the limit, charging current exceeding the limit, etc.

[0411] If the answer is yes (Y), the process ends; if the answer is no (N), the process proceeds to step S704.

[0412] Step S706: Determine to enter working mode 6, BtoG mode in which the battery system module supplies power to the grid;

[0413] like Figure 13As shown, the state of the charging energy storage device entering the working mode 6, entering the BtoG mode of the battery system module supplying power to the power grid, the arrow in the figure points to the flow direction of the electric energy, and the dashed line is the flow path of the electric energy. The battery system module transmits electric energy to the power grid through the electrically isolated bidirectional AC / DC module.

[0414] Step S707: whether the stop condition of the working mode 6 is reached.

[0415] Here, the stop condition of the working mode 6 includes battery system module failure, battery system module low SOC, electrically isolated bidirectional AC / DC module failure, etc.

[0416] If yes (Y), end; if no (N), enter step S706.

[0417] It should be noted that the bidirectional AC / DC module, energy storage device and electric equipment in the foregoing embodiments can be respectively implemented as the electrically isolated bidirectional AC / DC module, battery system module and electric vehicle described above.

[0418] Based on the foregoing embodiments, the embodiments of the present application provide a charging device, which includes a charging and discharging circuit and a charging control device; the charging control device is used to implement the steps in the foregoing method when executing a program.

[0419] The charging device can be unidirectional energy transmission, for example, to realize the delivery of electric energy of the energy storage device to the electric equipment. In some embodiments, the charging device can be bidirectional energy transmission, for example, in addition to delivering electric energy of the energy storage device to the electric equipment, electric energy of the electric equipment can also be delivered to the energy storage device.

[0420] Taking the bidirectional energy transmission charging device as an example, the charging device can include a charging and discharging circuit and a charging control device, wherein:

[0421] The charging control device is used to control the operation of the charging device based on the operation mode of the charging device when the charging device is in the state of connecting the charging gun. The operation mode can include a charging mode and a discharging mode.

[0422] The charging and discharging circuit includes a charging path and a discharging path, that is, a bidirectional circuit; in the charging mode, the energy storage device is charged through the charging path; in the discharging mode, external power supply is supplied through the discharging path. In some embodiments, the charging and discharging circuit as a bidirectional circuit can be realized based on a bidirectional DC / DC module. As an implementation manner, the charging and discharging circuit can include a bidirectional DC / DC module, etc.

[0423] Based on the foregoing embodiments, the embodiments of the present application provide a charging system, which includes a charging device and an electric equipment, wherein the charging device includes an energy storage device;

[0424] The charging device is configured to determine charging demand information of the electric device in response to a charging event, determine a target charging mode of the charging device for charging the electric device based on the charging demand information, wherein the target charging mode corresponds to target charging parameters, and charge the electric device based on the target charging parameters corresponding to the target charging mode.

[0425] In a case where the target charging mode includes a first charging mode, the target charging parameters corresponding to the first charging mode include first charging parameters, and the charging power indicated by the first charging parameters is greater than 300 kilowatts.

[0426] Based on the foregoing embodiments, the present application provides a component structure diagram of a charging control device. The device includes various modules and units included in the modules, and can be implemented by a charging control device in a charging device. Of course, the device can also be implemented by a specific logic circuit. In the implementation process, the charging control device can be a central processing unit (CPU), a microprocessor unit (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA).

[0427] The present application provides a component structure diagram of a charging control device Figure One As shown in the figure, the charging control device 900 includes: Figure 14 A first determination module 901 is configured to determine charging demand information of the electric device in response to a charging event.

[0428] A second determination module 902 is configured to determine a target charging mode of the charging device for charging the electric device based on the charging demand information, wherein the target charging mode corresponds to target charging parameters, and the charging device includes an energy storage device.

[0429] A first charging module 903 is configured to charge the electric device based on the target charging parameters corresponding to the target charging mode.

[0430] In a case where the target charging mode includes a first charging mode, the target charging parameters corresponding to the first charging mode include first charging parameters, and the charging power indicated by the first charging parameters is greater than 300 kilowatts.

[0431]

[0432] ​In some embodiments, the charging modes of the charging device further include a second charging mode, and a second charging parameter in the second charging mode indicates a charging power less than or equal to 300 kW; the device further includes: a third determination module configured to determine the second charging parameter corresponding to the second charging mode, in a case where the target charging mode is the first charging mode and the energy storage device is unable to charge the electrical equipment with the first charging parameter; and a second charging module configured to charge the electrical equipment with the second charging parameter.

[0433] In some embodiments, the charging modes of the charging device further include a third charging mode, and a third charging parameter in the third charging mode indicates a charging power less than a charging power indicated by the second charging parameter in the second charging mode; the device further includes: a fourth determination module configured to determine the third charging parameter corresponding to the third charging mode, in a case where the target charging mode is the second charging mode and the energy storage device is unable to charge the electrical equipment with the second charging parameter; and a third charging module configured to charge the electrical equipment with the third charging parameter.

[0434] In some embodiments, the target charging parameter further indicates a target charging manner;

[0435] In a case where the target charging manner includes a first charging manner, the first charging module is configured to provide all of the charging power indicated by the target charging parameter to the electrical equipment by the energy storage device; and in a case where the target charging manner includes a second charging manner, the first charging module is configured to provide a part of the charging power indicated by the target charging parameter to the electrical equipment by the power grid and provide another part of the charging power indicated by the target charging parameter to the electrical equipment by the energy storage device; the part of the charging power includes a part or all of the charging power that can be provided by the power grid.

[0436] In some embodiments, the device further includes:

[0437] A fifth determination module configured to determine an estimated charging period;

[0438] A sixth determination module configured to determine that the target charging manner is the first charging manner, in a case where the estimated charging period falls within a first period of power supply by the power grid;

[0439] A seventh determination module configured to determine that the target charging manner is the second charging manner, in a case where the estimated charging period falls within a second period;

[0440] An eighth determination module configured to determine that the target charging manner is the first charging manner within a first sub-period of the estimated charging period, in a case where the first sub-period falls within the first period of power supply by the power grid, and determine that the target charging manner is the second charging manner within a second sub-period of the estimated charging period, in a case where the second sub-period falls within a second period of power supply by the power grid;

[0441] wherein the first time period and the second time period are different.

[0442] In some embodiments, a ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:4.

[0443] In some embodiments, the energy storage device and / or the charging device satisfy one or more of the following conditions:

[0444] a ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0445] an energy density of the energy storage device is greater than or equal to 380 watt-hours per liter;

[0446] a ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0447] In some embodiments, the second determining module comprises: a first determining unit, configured to determine, based on the charging demand information, a target charging parameter of the charging device for charging the electrical device from at least one charging mode of the charging device; the at least one charging mode of the charging device comprises a first charging mode.

[0448] In some embodiments, the charging demand information comprises an expected charging duration; the first determining unit is configured to determine an estimated charging duration corresponding to each of the at least one charging mode of the charging device; determine a duration difference between the expected charging duration and the estimated charging duration of each charging mode; and determine the charging mode corresponding to the smallest duration difference among all the duration differences as the target charging mode.

[0449] In some embodiments, the apparatus further comprises: an obtaining module, configured to obtain a current state of charge value and / or a remaining energy state value of the energy storage device; a ninth determining module, configured to determine, based on the state of charge value and the remaining energy state value, whether the energy storage device is capable of charging the electrical device at the target charging parameter; and a fourth charging module, configured to charge the electrical device based on the target charging parameter in a case where it is determined that the energy storage device is capable of charging the electrical device at the target charging parameter.

[0450] In some embodiments, the ninth determining module comprises: a second determining unit, configured to determine, in a case where the state of charge value is greater than or equal to a first state of charge threshold and the remaining energy state value is greater than or equal to a first remaining energy threshold, that the energy storage device supports charging the electrical device at a charging power corresponding to the first charging mode; and a third determining unit, configured to determine, in a case where the state of charge value is less than the first state of charge threshold and greater than or equal to a second state of charge threshold, and the remaining energy state value is less than the first remaining energy threshold and greater than or equal to a second remaining energy threshold, that the energy storage device supports charging the electrical device at a charging power corresponding to the second charging mode.

[0451] In some embodiments, the ninth determining module further includes: a first output unit, configured to output a first prompt message in a case that the state of charge value is less than the first state of charge threshold value, and / or the state of remaining energy value is less than the first state of remaining energy threshold value, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode; a second output unit, configured to output a second prompt message in a case that the state of charge value is less than the second state of charge threshold value, and / or the state of remaining energy value is less than the second state of remaining energy threshold value, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode; a fourth determining unit, configured to determine the selected charging mode as the target charging mode in response to the charging mode selected based on the first prompt message or the second prompt message.

[0452] In some embodiments, the first determining module includes: a receiving unit, configured to receive a charging request message sent by the charging gun or the user end in response to the charging event, the charging request message including attribute information of the battery of the electric device; the attribute information of the battery at least including: a plurality of charging parameters suitable for the electric device; a fifth determining unit, configured to determine the charging demand information of the electric device based on the attribute information of the battery.

[0453] In some embodiments, the fifth determining unit is configured to determine the charging demand information of the electric device based on the attribute information of the battery and a charging strategy; wherein the charging strategy is set for the electric device or the charging device.

[0454] In some embodiments, the fifth determining unit is configured to determine and output estimated consumption parameter values corresponding to the plurality of charging modes respectively based on the attribute information of the battery, the estimated consumption parameter values including estimated charging time and / or estimated charging cost; and the selected estimated consumption parameter value is determined as the charging demand information of the electric device in response to a selection operation on the plurality of estimated consumption parameter values.

[0455] The application provides a charging control device Figure Two As shown in Figure 15 The charging control device 910 includes:

[0456] A first determining module 911, configured to determine an estimated charging time period of the electric device and a target charging mode of the charging device for charging the electric device based on charging demand information of the electric device in response to a charging event;

[0457] A second determining module 912, configured to determine a target charging mode for charging the electric device in the estimated charging time period;

[0458] The charging module 913 is configured to charge the electrical device based on the target charging mode and the target charging parameters corresponding to the target charging mode;

[0459] In which case, when the target charging mode includes the first charging mode, the target charging parameter corresponding to the first charging mode includes the first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts.

[0460] In some embodiments, the apparatus comprises:

[0461] The third determining module is configured to determine the charging fee of the electric device based on the actual charging period of the electric device and the price of electricity during the actual charging period when it is determined that the charging is completed.

[0462] In some embodiments, the apparatus comprises:

[0463] A fourth determining module is configured to determine whether there is a charging event for the electric device when the current time falls within the first time period;

[0464] An estimation module, configured to estimate energy consumption of the energy storage device based on charging events;

[0465] The fifth determination module is configured to determine whether the energy storage device transmits electric energy to the power grid based on the current state of charge value and / or remaining energy state value of the energy storage device and the energy consumption of the energy storage device.

[0466] A schematic diagram of the composition structure of a charging control device provided in an embodiment of the present application Figure Three ,like Figure 16 As shown, the charging control device 920 includes:

[0467] An acquisition module 921 is configured to acquire a current state of charge value and / or a remaining energy state value of an energy storage device in a charging device in response to selection of a charging mode;

[0468] A determination module 922 is configured to determine, based on the state of charge value and / or the residual energy state value, whether the energy storage device can charge the electrical device with target charging parameters corresponding to a target charging mode; the target charging mode is a charging mode in which the charging device charges the electrical device;

[0469] The charging module 923 is configured to charge the electric device based on the target charging parameters when it is determined that the energy storage device can charge the electric device with the target charging parameters;

[0470] The energy storage device and / or charging device meets one or more of the following conditions:

[0471] The ratio between the rated energy of the energy storage device and the maximum discharge power of the energy storage device is not greater than 1:3;

[0472] The energy density of the energy storage device is greater than or equal to 380 watt-hours per liter.

[0473] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0474] In some embodiments, the first determining module comprises:

[0475] The first output unit is configured to output a first prompt message in a case where the state of charge value is less than the first state of charge threshold value, and / or the state of remaining energy value is less than the first state of remaining energy threshold value, the first prompt message being used to represent that the charging device currently does not support the first charging mode and needs to be switched to the second charging mode or the third charging mode.

[0476] The second output unit is configured to output a second prompt message in a case where the state of charge value is less than the second state of charge threshold value, and / or the state of remaining energy value is less than the second state of remaining energy threshold value, the second prompt message being used to represent that the charging device currently does not support the second charging mode and needs to be switched to the third charging mode.

[0477] The obtaining unit is configured to obtain a selected charging mode based on the first prompt message or the second prompt message.

[0478] The charging control device provided by the embodiments of the present application comprises a first determining module, a first output unit, and a second output unit. Figure Four As shown in the figure, the charging control device 930 comprises: Figure 17

[0479] The obtaining module 931 is configured to obtain a current state of charge value and / or a state of remaining energy value of an energy storage device in a charging device in response to selection of a first charging mode.

[0480] The determining module 932 is configured to determine that the energy storage device supports charging of an electrical device according to a charging power corresponding to the first charging mode in a case where the state of charge value is greater than or equal to a first state of charge threshold value, and / or the state of remaining energy value is greater than or equal to a first state of remaining energy threshold value.

[0481] The first charging parameter in the first charging mode indicates a charging power greater than 300 kilowatts.

[0482] The charging control device provided by the embodiments of the present application comprises a first determining module, a first output unit, and a second output unit. Figure Five As shown in the figure, the charging control device 940 comprises: Figure 18

[0483] The obtaining module 941 is configured to obtain a current state of charge value and / or a state of remaining energy value of an energy storage device in a charging device in response to selection of a second charging mode.

[0484] ​​The determining module 942 is configured to determine that the energy storage device supports charging the electrical device at the charging power corresponding to the second charging mode when the state of charge value is less than the first state of charge threshold and greater than or equal to the second state of charge threshold, and / or the state of remaining energy value is less than the first state of remaining energy threshold and greater than or equal to the second state of remaining energy threshold.

[0485] The second charging parameter in the second charging mode indicates a charging power less than or equal to 300 kW.

[0486] The charging control device provided by the embodiments of the present application has the structure as shown in Figure Six As shown in Figure 19 The charging control device 950 includes:

[0487] The obtaining module 951 is configured to obtain a current state of charge value and / or a state of remaining energy value of the energy storage device in the charging device in response to selection of a charging mode. The charging mode includes a first charging mode. A first charging parameter in the first charging mode indicates a charging power greater than 300 kW.

[0488] The first providing module 952 is configured to provide, by the energy storage device, all power of the charging power indicated by the charging parameter in the charging mode for the electrical device when the state of charge value is greater than a third state of charge threshold, and / or the state of remaining energy value is greater than a third state of remaining energy threshold.

[0489] The energy storage device and / or the charging device satisfy one or more of the following conditions:

[0490] The ratio between the rated energy of the energy storage device and the maximum discharging power of the energy storage device is not greater than 1:3.

[0491] The energy density of the energy storage device is greater than or equal to 380 Wh / L.

[0492] The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:4.

[0493] In some embodiments, the device includes:

[0494] The second providing module is configured to provide, by the energy storage device, part of the charging power indicated by the charging parameter for the electrical device when the state of charge value is less than the third state of charge threshold and greater than or equal to a fourth state of charge threshold, and / or the state of remaining energy value is less than the third state of remaining energy threshold and greater than or equal to a fourth state of remaining energy threshold.

[0495] In some embodiments, the device includes:

[0496] a transmission module, configured to transmit electric energy to the power grid through the energy storage device when the state of charge value is greater than or equal to a fifth charge threshold and / or the residual energy state value is greater than or equal to a fifth residual energy threshold;

[0497] The charging module is used to charge the energy storage device through the power grid when the state of charge value is less than a sixth charge threshold and / or the residual energy state value is less than a sixth residual energy threshold.

[0498] A schematic diagram of the composition structure of a charging control device provided in an embodiment of the present application Figure Seven ,like Figure 20 As shown, the charging control device 960 includes:

[0499] The sending module 961 is used to send the state parameters of the energy storage device in the charging device to the charging control device in the charging device in response to the charging event; the state parameters include one or more of the following: state of charge value, remaining energy state value;

[0500] a receiving module 962 configured to receive a discharge parameter of the energy storage device sent by the charging control device, wherein the discharge parameter of the energy storage device is determined based on a target charging mode and a state parameter for charging the electrical device;

[0501] A control module 963 is configured to control the energy storage device to discharge according to discharge parameters when a circuit is conducted between the bidirectional DC / DC module of the energy storage device and the charging device; wherein, when the target charging mode includes a first charging mode, the target charging parameters corresponding to the first charging mode include discharge parameters of the energy storage device, and the discharge parameters of the energy storage device indicate a discharge power greater than 300 kilowatts.

[0502] The description of the above device embodiment is similar to the description of the above method embodiment and has similar beneficial effects as the method embodiment. In some embodiments, the functions or modules included in the device provided by the embodiments of the present disclosure can be used to perform the methods described in the above method embodiments. For technical details not disclosed in the device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0503] It should be noted that, in the embodiments of the present application, if the above-mentioned method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of a software product in essence or the part that contributes to the related art, which is stored in a storage medium, includes a number of instructions to make a charging device execute all or part of the methods of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk, and various media that can store program codes. Thus, the embodiments of the present application are not limited to any specific hardware, software or firmware, or any combination of hardware, software and firmware.

[0504] The embodiments of the present application provide a computer-readable storage medium, which stores a computer program. When the computer program is executed by a controller, part or all of the steps of the above-mentioned method are implemented. The computer-readable storage medium can be transitory or non-transitory.

[0505] The embodiments of the present application provide a computer program, which includes computer-readable code. When the computer-readable code is run in a charging device, a controller in the charging device executes part or all of the steps of the above-mentioned method.

[0506] The embodiments of the present application provide a computer program product, which includes a computer program or instructions. When the computer program or instructions are executed by a controller, the steps of the above-mentioned method are implemented.

[0507] The computer program product can be specifically implemented by hardware, software or a combination thereof. In some embodiments, the computer program product is specifically embodied as a computer storage medium, and in other embodiments, the computer program product is specifically embodied as a software product, such as a software development kit (SDK) and the like.

[0508] It should be noted that: the above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar parts can be referred to each other. The above description of the device, storage medium, computer program and computer program product embodiments is similar to the description of the above-mentioned method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the device, storage medium, computer program and computer program product embodiments of the present application, please refer to the description of the method embodiments of the present application.

[0509] It should be understood that every feature, structure, or characteristic described in relation to one embodiment is applicable to at least one other embodiment. Therefore, the appearance of the phrase "in one embodiment" or "in an embodiment" in various places throughout the specification is not necessarily referring to the same embodiment. Furthermore, various features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that the sequence of steps / processes in various embodiments of the present application does not mean the order of execution, the execution order of the steps / processes should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above sequence number of the embodiments of the present application is only for description, not representing the advantages or disadvantages of the embodiments.

[0510] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0511] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of units is only a logical function division, and actual implementation can have another division manner, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each component part shown or discussed can be through some interface, indirect coupling or communication connection between devices or units, which can be electrical, mechanical or other forms.

[0512] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units; they can be located in one place or distributed on multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0513] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be realized in the form of hardware or hardware plus software functional unit.

[0514] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware, the foregoing program can be stored in a computer readable storage medium, and the program executes the steps of the method embodiments when executed; and the foregoing storage medium includes a mobile storage device, a read only memory (ROM), a magnetic disc or an optical disc, and various storage medium capable of storing program codes.

[0515] Alternatively, the integrated units of the present application can be stored in a computer readable storage medium if the integrated units are realized in the form of software function modules and sold or used as independent products. Based on this understanding, the technical solutions of the present application or the parts that make contributions to the related art can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a charging device to execute all or part of the method embodiments of the present application. The foregoing storage medium includes a mobile storage device, a ROM, a magnetic disc or an optical disc, and various storage medium capable of storing program codes.

[0516] The above is only an embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application.

Claims

1. A charging method, comprising: In response to the charging event, determining charging demand information of the powered device; The charging demand information is used to represent the expected charging time of the electric device; Determining, based on the charging demand information, a target charging mode for charging the electrical device by the charging device from at least one charging mode supported by the charging device, including: determining an estimated charging time corresponding to each of the at least one charging mode of the charging device; determining a time difference between the expected charging time and the estimated charging time for each charging mode; and determining a charging mode corresponding to a minimum time difference among all time differences as the target charging mode; wherein the target charging mode corresponds to a target charging parameter; the charging device includes an energy storage device, and an input power of the charging device is less than 150 kilowatts; charging the electrical device based on the target charging parameters corresponding to the target charging mode; Wherein, when the target charging mode includes a first charging mode, the target charging parameter corresponding to the first charging mode includes a first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

2. The method according to claim 1, wherein: The input power of the energy storage device is less than 150 kilowatts; in the first charging mode, the output power of the energy storage device is greater than or equal to 300 kilowatts.

3. The method according to claim 1, wherein: The charging mode of the charging device further includes a second charging mode, wherein the charging power indicated by the second charging parameter in the second charging mode is less than or equal to 300 kilowatts; The method further comprises: When the target charging mode is the first charging mode and the energy storage device cannot charge the electric device with the first charging parameter, determining a second charging parameter corresponding to the second charging mode; The electrical device is charged using the second charging parameter.

4. The method according to claim 3, wherein: The charging mode of the charging device further includes a third charging mode, wherein the charging power indicated by the third charging parameter in the third charging mode is less than the charging power indicated by the second charging parameter in the second charging mode; The method further comprises: When the target charging mode is the second charging mode and the energy storage device cannot charge the electrical device with the second charging parameter, determining a third charging parameter corresponding to the third charging mode; The electrical device is charged using the third charging parameter.

5. The method according to any one of claims 1 to 4, wherein: The target charging parameter also indicates a target charging mode; In a case where the target charging mode includes the first charging mode, charging the electric device based on the target charging parameter corresponding to the target charging mode includes: Providing the full charging power indicated by the target charging parameter to the electrical device through the energy storage device; In a case where the target charging mode includes the second charging mode, charging the electric device based on the target charging parameter corresponding to the target charging mode includes: The power grid provides the electrical device with a portion of the charging power indicated by the target charging parameter, and the energy storage device provides the electrical device with another portion of the charging power indicated by the target charging parameter; the portion of power includes part or all of the charging power that the power grid can provide.

6. The method according to claim 5, wherein: Before charging the electric device based on the target charging parameter corresponding to the target charging mode, the method further includes: Determine the estimated charging period; When the estimated charging time period is a first time period of grid power supply, determining the target charging mode to be a first charging mode; When the estimated charging time period enters the second time period, determining the target charging mode to be the second charging mode; In a first sub-period of the estimated charging period, when a first time period of grid-powered electricity is connected, determining that the target charging mode in the first sub-period is a first charging mode; and in a second sub-period of the estimated charging period, when a second time period of grid-powered electricity is connected, determining that the target charging mode in the second sub-period is a second charging mode; The first time period and the second time period are different.

7. The method according to any one of claims 1 to 4, wherein: The ratio between the rated energy of the energy storage device and the rated power of the energy storage device is less than or equal to 1:

4.

8. The method according to any one of claims 1 to 4, wherein: The determining, based on the charging demand information, a target charging mode for charging the electrical device by a charging device includes: determining, based on the charging demand information, a target charging parameter for charging the electrical device by the charging device from at least one charging mode of the charging device; The at least one charging mode of the charging device includes the first charging mode.

9. The method according to any one of claims 1 to 4, wherein: The method further comprises: Obtaining a current state of charge value and / or a remaining energy state value of the energy storage device; Determining, based on the state of charge value and / or the remaining energy state value, whether the energy storage device can charge the electrical device with the target charging parameter; When it is determined that the energy storage device can charge the electric device with the target charging parameter, the electric device is charged based on the target charging parameter.

10. The method according to claim 9, wherein: Determining whether the energy storage device can charge the electrical device with the target charging parameter based on the state of charge value and / or the remaining energy state value includes: When the state of charge value is greater than or equal to a first charge threshold, and / or the remaining energy state value is greater than or equal to a first remaining energy threshold, determining that the energy storage device supports charging the electric device according to the charging power corresponding to the first charging mode; When the state of charge value is less than the first charge threshold and greater than or equal to the second charge threshold, and / or the remaining energy state value is less than the first remaining energy threshold and greater than or equal to the second remaining energy threshold, it is determined that the energy storage device supports charging the electrical device according to the charging power corresponding to the second charging mode.

11. The method according to claim 10, wherein: The method further comprises: When the state of charge value is less than the first charge threshold and / or the remaining energy state value is less than the first remaining energy threshold, outputting a first prompt message, wherein the first prompt message is used to indicate that the charging device currently does not support the first charging mode and needs to switch to the second charging mode or the third charging mode; When the state of charge value is less than the second charge threshold and / or the remaining energy state value is less than the second remaining energy threshold, outputting a second prompt message, wherein the second prompt message is used to indicate that the charging device currently does not support the second charging mode and needs to switch to the third charging mode; In response to a charging mode selected based on the first prompt message or the second prompt message, the selected charging mode is determined as a target charging mode.

12. The method according to any one of claims 1 to 4, wherein: In response to a charging event, determining charging requirement information of the powered device includes: In response to a charging event, receiving a charging request message sent by a charging gun or a user end, wherein the charging request message includes attribute information of a battery of the power-consuming device; the attribute information of the battery includes at least: a plurality of charging parameters applicable to the power-consuming device; Based on the attribute information of the battery, charging requirement information of the electric device is determined.

13. The method according to claim 12, wherein: Determining charging requirement information of the power-consuming device based on the attribute information of the battery includes: Based on the attribute information and charging strategy of the battery, charging requirement information of the electric device is determined; wherein the charging strategy is set for the electric device or the charging apparatus.

14. The method according to claim 12, wherein: Determining charging requirement information of the power-consuming device based on the attribute information of the battery includes: Based on the attribute information of the battery, determining and outputting estimated consumption parameter values ​​corresponding to a plurality of charging modes, the estimated consumption parameter values ​​including an estimated charging time and / or an estimated charging cost; In response to a selection operation of a plurality of estimated consumption parameter values, the selected estimated consumption parameter value is determined as the charging demand information of the electric device.

15. A charging method, comprising: In response to a charging event, determining an estimated charging period for the electric device based on an expected charging duration of the electric device represented by charging demand information of the electric device, and determining a target charging mode for charging the electric device by the charging device from at least one charging mode supported by the charging device, including: determining an estimated charging duration corresponding to each of the at least one charging mode of the charging device; determining a duration difference between the expected charging duration and the estimated charging duration of each charging mode; and determining the charging mode corresponding to the smallest duration difference among all duration differences as the target charging mode; determining a target charging mode for charging the electrical device during the estimated charging period; Based on the target charging mode, charging the electrical device with target charging parameters corresponding to the target charging mode; wherein, if the target charging mode includes a first charging mode, the target charging parameters corresponding to the first charging mode include a first charging parameter, and the charging power indicated by the first charging parameter is greater than 300 kilowatts; and the input power of the charging device is less than 150 kilowatts; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

16. The method according to claim 15, wherein: The method further comprises: When it is determined that charging is completed, a charging fee for the electric device is determined based on an actual charging period of the electric device and an electricity price during the actual charging period.

17. The method according to claim 16, wherein: Based on the target charging mode, charging the electrical device with target charging parameters corresponding to the target charging mode includes: When the target charging mode includes the first charging mode, providing the electrical device with the full charging power indicated by the target charging parameter through the energy storage device in the charging device; When the target charging mode includes the second charging mode, a portion of the charging power indicated by the target charging parameter is provided to the electric device through the power grid, and another portion of the charging power indicated by the target charging parameter is provided to the electric device through the energy storage device; the portion of power includes part or all of the charging power that the power grid can provide.

18. The method according to any one of claims 15 to 17, wherein: The determining of a target charging mode for charging the electrical device during the estimated charging period includes: When the estimated charging time period is a first time period of grid power supply, determining the target charging mode to be a first charging mode; When the estimated charging time period enters the second time period, determining the target charging mode to be the second charging mode; In a first sub-period of the estimated charging period, when a first time period of grid-powered electricity is connected, determining that the target charging mode in the first sub-period is a first charging mode; and in a second sub-period of the estimated charging period, when a second time period of grid-powered electricity is connected, determining that the target charging mode in the second sub-period is a second charging mode; The first time period and the second time period are different.

19. The method according to any one of claims 15 to 17, wherein: The method comprises: When the current time falls within the first time period, determining whether there is a charging event for the electric device; estimating energy consumption of the energy storage device based on the charging event; Based on the current state of charge value and / or remaining energy state value of the energy storage device and the energy consumption of the energy storage device, it is determined whether the energy storage device transmits electric energy to the power grid.

20. A charging method, comprising: In response to selection of a target charging mode selected from at least one charging mode supported by the charging device, obtaining a current state of charge value and / or a residual energy state value of an energy storage device in the charging device; The target charging mode is determined based on charging demand information of the electric device; the charging demand information is used to represent the expected charging time of the electric device; The input power of the charging device is less than 150 kilowatts; the target charging mode is the charging mode corresponding to the minimum duration difference among all the duration differences, where the duration difference is the difference between the expected charging duration and the estimated charging duration of each charging mode; Based on the state of charge value and / or the remaining energy state value, determining whether the energy storage device can charge the electrical device with target charging parameters corresponding to a target charging mode; the target charging mode is a charging mode in which the charging device charges the electrical device; If it is determined that the energy storage device can charge the electrical device with the target charging parameter, charging the electrical device based on the target charging parameter; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

21. The method according to claim 20, wherein: When the selected charging mode is the first charging mode, the charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts.

22. The method according to claim 20 or 21, wherein: Determining, based on the state of charge value and / or the remaining energy state value, whether the energy storage device can charge the electrical device with target charging parameters corresponding to a target charging mode includes: When the state of charge value is greater than or equal to a first charge threshold, and / or the remaining energy state value is greater than or equal to a first remaining energy threshold, determining that the energy storage device supports charging the electric device according to the charging power corresponding to the first charging mode; When the state of charge value is less than the first charge threshold and greater than or equal to the second charge threshold, and / or the remaining energy state value is less than the first remaining energy threshold and greater than or equal to the second remaining energy threshold, it is determined that the energy storage device supports charging the electrical device according to the charging power corresponding to the second charging mode.

23. The method according to claim 22, wherein: The method further comprises: When the state of charge value is less than the first charge threshold and / or the remaining energy state value is less than the first remaining energy threshold, outputting a first prompt message, wherein the first prompt message is used to indicate that the charging device currently does not support the first charging mode and needs to switch to the second charging mode or the third charging mode; When the state of charge value is less than the second charge threshold and / or the remaining energy state value is less than the second remaining energy threshold, outputting a second prompt message, wherein the second prompt message is used to indicate that the charging device currently does not support the second charging mode and needs to switch to the third charging mode; A selected charging mode is acquired based on the first prompt message or the second prompt message.

24. A charging method, comprising: In response to a first charging mode selected from at least one charging mode supported by the charging device, obtaining a current state of charge value and / or a residual energy state value of an energy storage device in the charging device; The first charging mode is determined based on charging requirement information of the electric device; the charging requirement information is used to represent the expected charging time of the electric device; The first charging mode is a charging mode corresponding to a minimum charging time difference among all charging time differences, where the charging time difference is the difference between the expected charging time and the estimated charging time of each charging mode; When the state of charge value is greater than or equal to a first charge threshold, and / or the remaining energy state value is greater than or equal to a first remaining energy threshold, determining that the energy storage device supports charging the electric device according to the charging power corresponding to the first charging mode; The charging power indicated by the first charging parameter in the first charging mode is greater than 300 kilowatts; the input power of the charging device is less than 150 kilowatts; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

25. The method according to claim 24, wherein: The method comprises: When the state of charge value is less than the first charge threshold and / or the remaining energy state value is less than the first remaining energy threshold, outputting a first prompt message, wherein the first prompt message is used to indicate that the charging device currently does not support the first charging mode and needs to switch to the second charging mode or the third charging mode; The charging power indicated by the second charging parameter in the second charging mode is less than or equal to 300 kilowatts; the charging power indicated by the third charging parameter in the third charging mode is less than the charging power indicated by the second charging parameter in the second charging mode.

26. A charging method, the method comprising: In response to a second charging mode selected from at least one charging mode supported by the charging device, obtaining a current state of charge value and / or a residual energy state value of an energy storage device in the charging device; The second charging mode is determined based on charging requirement information of the electric device; the charging requirement information is used to represent the expected charging time of the electric device; The second charging mode is a charging mode corresponding to a minimum charging time difference among all the charging time differences, where the charging time difference is the difference between the expected charging time and the estimated charging time of each charging mode; When the state of charge value is less than the first charge threshold and greater than or equal to the second charge threshold, and / or the remaining energy state value is less than the first remaining energy threshold and greater than or equal to the second remaining energy threshold, determining that the energy storage device supports charging the electric device according to the charging power corresponding to the second charging mode; The charging power indicated by the second charging parameter in the second charging mode is less than or equal to 300 kilowatts; and the input power of the charging device is less than 150 kilowatts.

27. The method according to claim 26, wherein: The method comprises: When the state of charge value is less than the second charge threshold, and / or the remaining energy state value is less than the second remaining energy threshold, a second prompt message is output, wherein the second prompt message is used to indicate that the charging device currently does not support the second charging mode and needs to switch to the third charging mode; wherein the charging power indicated by the third charging parameter in the third charging mode is less than the charging power indicated by the second charging parameter in the second charging mode.

28. The method according to claim 26 or 27, wherein: The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

29. A charging method, comprising: In response to a target charging mode selected from at least one charging mode supported by a charging device, a current state of charge value and / or remaining energy state value of an energy storage device in the charging device is obtained; wherein the target charging mode is determined based on charging requirement information of an electrical device; the charging requirement information is used to represent an expected charging duration of the electrical device; the target charging mode includes a first charging mode, wherein a first charging parameter in the first charging mode indicates a charging power greater than 300 kilowatts; and the input power of the charging device is less than 150 kilowatts; the target charging mode is the charging mode corresponding to the minimum duration difference among all duration differences, wherein the duration difference is the difference between the expected charging duration and the estimated charging duration of each charging mode; When the state of charge value is greater than a third charge threshold, and / or the remaining energy state value is greater than a third remaining energy threshold, providing the electrical device with the full charging power indicated by the charging parameters under the target charging mode through the energy storage device; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

30. The method according to claim 29, wherein: The input power of the energy storage device is less than 150 kilowatts; in the first charging mode, the output power of the energy storage device is greater than or equal to 300 kilowatts.

31. The method according to claim 29 or 30, wherein: The method comprises: When the state of charge value is less than the third charge threshold and greater than or equal to the fourth charge threshold, and / or the remaining energy state value is less than the third remaining energy threshold and greater than or equal to the fourth remaining energy threshold, the energy storage device provides part of the charging power indicated by the charging parameters to the electrical device.

32. The method according to claim 29 or 30, wherein: The method comprises: When the state of charge value is greater than or equal to a fifth charge threshold, and / or the residual energy state value is greater than or equal to a fifth residual energy threshold, transmitting electric energy to a power grid through the energy storage device; When the state of charge value is less than a sixth charge threshold, and / or the remaining energy state value is less than a sixth remaining energy threshold, the energy storage device is charged through the power grid.

33. A charging method, the method comprising: In response to a charging event, sending a state parameter of an energy storage device in the charging device to a charging control device in the charging device; The state parameters include one or more of the following: state of charge value, remaining energy state value; receiving a discharge parameter of the energy storage device sent by the charging control device, wherein the discharge parameter of the energy storage device is determined based on a target charging mode for charging the electrical device and the state parameter; the target charging mode is determined based on charging requirement information of the electrical device and from at least one charging mode supported by the charging device; the charging requirement information is used to represent an expected charging duration of the electrical device; the target charging mode is a charging mode corresponding to a minimum duration difference among all duration differences, and the duration difference is the difference between the expected charging duration and the estimated charging duration of each charging mode; When the circuit between the energy storage device and the bidirectional DC / DC module of the charging device is conductive, controlling the energy storage device to discharge according to the discharge parameters; In which, when the target charging mode includes the first charging mode, the target charging parameter corresponding to the first charging mode includes a discharge parameter of the energy storage device, and the discharge parameter of the energy storage device indicates a discharge power greater than 300 kilowatts; the input power of the charging device is less than 150 kilowatts.

34. Based on the method of claim 33, when the target charging mode is the second charging mode, the charging power indicated by the discharge parameter of the energy storage device in the second charging mode is less than or equal to 300 kilowatts.

35. The method according to claim 33 or 34, wherein: The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

36. A charging control device, comprising: A first determining module, configured to determine charging requirement information of the electric device in response to a charging event; The charging demand information is used to represent the expected charging time of the electric device; a second determining module configured to determine, based on the charging demand information, a target charging mode for charging the electrical device by the charging device from at least one charging mode supported by the charging device, wherein the target charging mode corresponds to a target charging parameter; the charging device includes an energy storage device; the target charging mode is a charging mode corresponding to a minimum duration difference among all duration differences, where the duration difference is the difference between the expected charging duration and an estimated charging duration for each charging mode; a first charging module, configured to charge the electrical device based on a target charging parameter corresponding to the target charging mode; Wherein, when the target charging mode includes a first charging mode, the target charging parameter corresponding to the first charging mode includes a first charging parameter, the charging power indicated by the first charging parameter is greater than 300 kilowatts; and the input power of the charging device is less than 150 kilowatts; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

37. A charging system comprising a charging device and an electrical device, wherein: The charging device includes an energy storage device; The charging device is configured to determine charging demand information of the power-consuming device in response to a charging event; The charging demand information is used to represent the expected charging time of the electric device; determining, based on the charging demand information, a target charging mode for charging the electrical device by the charging device from at least one charging mode supported by the charging device, wherein the target charging mode corresponds to a target charging parameter; the charging device includes an energy storage device; charging the electrical device based on the target charging parameter corresponding to the target charging mode; the target charging mode being the charging mode corresponding to the minimum duration difference among all duration differences, wherein the duration difference is the difference between the desired charging duration and the estimated charging duration of each charging mode; Wherein, when the target charging mode includes a first charging mode, the target charging parameter corresponding to the first charging mode includes a first charging parameter, the charging power indicated by the first charging parameter is greater than 300 kilowatts; and the input power of the charging device is less than 150 kilowatts; The energy storage device and / or the charging device meet one or more of the following conditions: The energy density of the energy storage device is greater than or equal to 380 watt-hours / liter; The ratio between the rated energy of the energy storage device and the maximum charging power of the charging device is less than 1:

4.

38. A charging device comprising a charging and discharging circuit and a charging control device; The charging control device is used to implement the steps of the method described in any one of claims 1 to 35 when executing a program.

39. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a charging control device, the steps of the method according to any one of claims 1 to 35 are implemented.

40. A computer program product comprising a computer program or instructions, wherein when the computer program or instructions are executed by a charging control device, the steps of the method according to any one of claims 1 to 35 are implemented.

Images