Charging pile system and power scheduling method and apparatus therefor, and computer device

Abstract

A power scheduling method for a charging pile system. The method comprises: when a first charging gun (10) is connected to a load, closing a switch of a path between the first charging gun (10) and a target power module (20), wherein a target charging gun (10) corresponding to the target power module (20) is different from the first charging gun (10), and the target charging gun (10) is in an idle state; and when the required charging power of the first charging gun (10) is greater than the output power of a first power module (20), controlling at least one target power module (20) to provide charging power for the first charging gun (10). The method can quickly use the target power module (20) to provide power for the first charging gun (10), so as to improve the response speed with regard to the power requirements and improve charging efficiency. Further comprised are a charging pile system, a power scheduling apparatus for a charging pile system, and a computer device.

Description

Charging pile system and power scheduling method, device and computer equipment thereof

[0001] The present application claims priority to the Chinese patent application No. 2024112473368, filed on September 5, 2024, and entitled "Charging pile system and power scheduling method, device and computer equipment thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of charging equipment, in particular to a charging pile system and a power scheduling method, device and computer equipment thereof. BACKGROUND

[0003] With the rise of electric vehicles, charging pile equipment has gradually covered major cities. The input end of the charging pile equipment is connected with an alternating current power grid, and the output end is provided with a charging gun, which can charge electric vehicles. However, with the gradual development of new energy vehicle technology, people's requirements for electric vehicle charging efficiency are becoming higher and higher, so how to improve the charging efficiency has become a technical problem to be solved in related technologies. SUMMARY

[0004] Therefore, it is necessary to provide a charging pile system and a power scheduling method, device and computer equipment thereof, computer readable storage medium and computer program product, which can respond to charging power demand more quickly and improve charging efficiency.

[0005] In a first aspect, the present application provides a power scheduling method of a charging pile system, the charging pile system comprising a plurality of charging guns and a plurality of power modules, the plurality of charging guns and the plurality of power modules being connected one by one, the method comprising: in the case that a first charging gun is connected with a load, closing a switch of a path between the first charging gun and a target power module, wherein the target power module corresponds to a target charging gun different from the first charging gun, and the target charging gun is in an idle state; in the case that a charging demand power of the first charging gun is greater than an output power of a first power module, controlling at least one target power module to provide charging power for the first charging gun.

[0006] In one of the embodiments, after the closing of the switch of the path between the first charging gun and the target power module, the method further comprises: adjusting at least one target power module to a pre-starting state; wherein the output voltage of the target power module in the pre-starting state is less than the bus voltage.

[0007] In one of the embodiments, the power module includes a plurality of power modules, and the adjusting at least one of the target power modules to the pre-start state includes: in a case where the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, switching the working state of the power module of at least one of the target power modules to the pre-start state, wherein the output voltage of the power module in the pre-start state is less than the bus voltage.

[0008] In one of the embodiments, the method further includes: obtaining historical charging data of the load connected to the first charging gun and the current charging duration of the load; and predicting the charging demand power of the load in the next time period according to the historical charging data of the load and the current charging duration of the load.

[0009] In one of the embodiments, in a case where the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, the switching of the working state of the power module of at least one of the target power modules to the pre-start state includes: determining a first power difference according to the charging demand power of the load in the next time period and the total charging power currently provided by the first charging gun; obtaining information of a first target power module according to the first power difference; and switching the working state of the first target power module to the pre-start state.

[0010] In one of the embodiments, the determining of the first target power module according to the first power difference includes: obtaining the working duration of each power module in at least one of the target power modules; and determining the first target power module from at least one of the target power modules according to the working duration of each power module.

[0011] In one of the embodiments, in a case where the charging demand power of the first charging gun is greater than the output power of the first power module, the controlling of at least one of the target power modules to provide charging power for the first charging gun includes: in a case where the charging demand power of the first charging gun is greater than the output power of the first power module, adjusting the output voltage and the output current of at least one of the target power modules in the pre-start state, so as to enable at least one of the target power modules in the pre-start state to provide charging power for the first charging gun.

[0012] In one of the embodiments, after the closing of the switch of the path between the first charging gun and the target power module, the method further includes: in a case where there is a target charging gun corresponding to the target power module in the working state, disconnecting the path between the target power module and the first charging gun.

[0013] In a second aspect, the application further provides a charging pile system, comprising: a plurality of charging guns and a plurality of power modules, the plurality of charging guns and the plurality of power modules being connected one by one; a switching device connected with the plurality of charging guns and the plurality of power modules, for selectively conducting a path between any charging gun and any power module; a controller connected with the plurality of charging guns, the plurality of power modules and the switching device respectively, the controller being configured to: in a case where a first charging gun is connected with a load, close a switch of a path between the first charging gun and a target power module, wherein the target power module corresponds to a target charging gun different from the first charging gun, and the target charging gun is in an idle state; and in a case where a charging demand power of the first charging gun is greater than an output power of a first power module, control at least one target power module to provide charging power for the first charging gun.

[0014] In a third aspect, the application further provides a power scheduling device of a charging pile system, the device comprising: a control module configured to: in a case where a first charging gun is connected with a load, close a switch of a path between the first charging gun and a target power module, wherein the target power module corresponds to a target charging gun different from the first charging gun, and the target charging gun is in an idle state; and in a case where a charging demand power of the first charging gun is greater than an output power of a first power module, control at least one target power module to provide charging power for the first charging gun.

[0015] In an embodiment, the device further comprises an adjusting module configured to adjust at least one target power module to a pre-starting state, wherein an output voltage of the target power module in the pre-starting state is less than a bus voltage.

[0016] In an embodiment, the adjusting module comprises a determining unit and a switching unit, wherein:

[0017] The determining unit is configured to determine a charging demand power of the load connected with the first charging gun in a next time period.

[0018] The switching unit is configured to, in a case where the charging demand power of the load in the next time period is greater than a charging demand power of the load in a current time period, switch a working state of at least one power module in the at least one target power module to a pre-starting state, wherein an output voltage of the power module in the pre-starting state is less than a bus voltage.

[0019] In an embodiment, the determining unit comprises an obtaining subunit and a predicting subunit, wherein:

[0020] The obtaining subunit is configured to obtain historical charging data of the load connected with the first charging pile and a current charging duration of the load.

[0021] a prediction subunit configured to predict a charging demand power of the load in a next time period according to historical charging data of the load and a current charging duration of the load.

[0022] In an embodiment, the switching unit comprises:

[0023] a determination subunit configured to determine a first power difference according to the charging demand power of the load in the next time period and a total charging power currently provided by the first charging gun.

[0024] The determination subunit is further configured to acquire information of a first target power module according to the first power difference.

[0025] a switching subunit configured to switch a working state of the first target power module to a pre-starting state.

[0026] In an embodiment, the determination subunit is specifically configured to:

[0027] acquire a working duration of each power module in the at least one target power module, and

[0028] determine the first target power module from the at least one target power module according to the working duration of each power module.

[0029] In an embodiment, the adjusting module is further configured to, in a case where the charging demand power of the first charging gun is greater than an output power of the first power module, adjust an output voltage and an output current of at least one target power module in the pre-starting state, so as to provide charging power for the first charging gun by the at least one target power module in the pre-starting state.

[0030] In an embodiment, the control module is further configured to, in a case where there is a target charging gun corresponding to the target power module, disconnect a path between the target power module and the first charging gun.

[0031] In a fourth aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements steps of the power scheduling method of the charging pile system when executing the computer program.

[0032] In a fifth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the computer program implements steps of the power scheduling method of the charging pile system when executed by a processor.

[0033] In a sixth aspect, the present application further provides a computer program product comprising a computer program, and the computer program implements steps of the power scheduling method of the charging pile system when executed by a processor.

[0034] The charging pile system and the power scheduling method, device, computer equipment, computer readable storage medium, and computer program product thereof have the following advantages. In the case that the first charging gun is connected with the load, the switch between the first charging gun and the target power module is closed. Then, in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, at least one target power module is controlled to provide charging power for the first charging gun. The target charging gun corresponding to the target power module is different from the first charging gun, and the target charging gun is in an idle state. Since the first charging gun is in or will be in a working state, the path between the first charging gun and the target power module corresponding to the target charging gun in the idle state is turned on, so that the target power module is occupied. Therefore, in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, the target power module can be quickly called to provide charging power, so that the response speed to the charging power demand is improved, and the charging efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0036] FIG. 1 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0037] FIG. 2 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0038] FIG. 3 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0039] FIG. 4 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0040] FIG. 5 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0041] FIG. 6 is a flowchart of a power scheduling method of a charging pile system in an embodiment;

[0042] FIG. 7 is a structural diagram of a charging pile system in an embodiment;

[0043] FIG. 8 is a structural diagram of a charging pile system in an embodiment;

[0044] Fig. 9 is a structural schematic diagram of a power scheduling device of a charging pile system in one embodiment;

[0045] Fig. 10 is a structural schematic diagram of a power scheduling device of a charging pile system in one embodiment;

[0046] Fig. 11 is a structural schematic diagram of a power scheduling device of a charging pile system in one embodiment;

[0047] Fig. 12 is a structural schematic diagram of a power scheduling device of a charging pile system in one embodiment;

[0048] Fig. 13 is a structural schematic diagram of a power scheduling device of a charging pile system in one embodiment;

[0049] Fig. 14 is an internal structure diagram of a computer device in one embodiment.

[0050] Legend: 10 - charging gun, 20 - power module, 30 - switch device, 21 - power module DETAILED DESCRIPTION

[0051] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0053] It can be understood that the terms "first", "second" and the like used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0054] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or connected to another element through a central element. In addition, "connected" in the following embodiments should be understood as "electrically connected", "communicatively connected" and the like if there is transmission of electrical signals or data between the connected objects.

[0055] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", or the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0056] In the related art, in order to improve the charging efficiency, an integrated one-machine double-gun direct current charging pile appears, which is composed of two charging guns and two groups of power modules. The two charging guns can charge at the same time, or only one charging gun can charge. When only one charging gun charges, the charging gun can occupy two groups of power modules, and when two charging guns charge at the same time, each charging gun occupies one group of power modules. However, in the related art, when one charging gun charges, only when the charging demand of the charging gun exceeds the output power of one group of power modules connected, the switch of the other group of power modules is closed to connect the other group of power modules to the charging gun. In this way, the other group of power modules needs to go through the process of closing the switch, boosting and starting the machine before being called, and the time for calling the other group of power modules is relatively long, resulting in low charging efficiency.

[0057] In one embodiment, as shown in FIG. 1, a power scheduling method of a charging pile system is provided, the charging pile system includes a plurality of charging guns and a plurality of power modules, the plurality of charging guns and the plurality of power modules are connected one by one, a first charging gun is one of the plurality of charging guns, and a power module corresponding to the first charging gun is a first power module. The method includes:

[0058] S100, in the case that the first charging gun is connected with a load, a switch of a path between the first charging gun and a target power module is closed. It can be understood that one power module can include a plurality of power modules. When the first charging gun is connected with a load (for example, an electric vehicle), the first power module corresponding to the first charging gun can provide charging power for the first charging gun, or the first power module corresponding to the first charging gun can only be in a communication stage, and the first power module corresponding to the first charging gun has not provided charging power for the first charging gun.

[0059] Wherein, although the switch of the path between the first charging gun and the target power module is closed, the target power module will not immediately supply power to the first charging gun.

[0060] It can be understood that the target power module cannot supply power to the first charging gun when the branch voltage where the target power module is located is not equal to the bus voltage. It can be understood that the bus voltage here refers to the voltage of the path where the power module connected directly to the charging gun is located. As shown in FIG. 8, the voltage on the path between the charging gun A and the module group A (module group A→K1K2→charging gun A) is the bus voltage, and the path of the module group B connected to the bus through K5K6 is the branch (module group B→K5K6), and the voltage on the path is the branch voltage. Therefore, the switch on the path between the first charging gun and the target power module can be closed first here, but the voltage of the branch where the target power module is located is controlled not to exceed the bus voltage, so that the target power module is in a state of being able to quickly boost to the bus voltage at any time to supply power, so as to facilitate subsequent quick power supply to the first charging gun.

[0061] It can be understood that in the charging pile system, although different guns correspond to their respective power modules, in the case of large load charging demand, the power modules of other guns can also be called to meet the load charging demand. Here, the target power module can be understood as the power module corresponding to the target charging gun other than the first charging gun in the charging pile system, and the target charging gun is in an idle state, so the target power module corresponding to the target charging gun is temporarily in an idle state. The switch between the target power module and the first charging gun can be closed to make the target power module act as a backup power module for the first charging gun. Correspondingly, the first charging gun is a charging gun that will be in a working state. The charging gun in a working state means that the charging gun is connected to a load and is supplying power to the load, i.e., the power module is providing charging power to the charging gun. When the first charging gun is in a working state, the first charging gun is connected to a load and is supplying power to the load, i.e., the first power module is providing charging power to the first charging gun.

[0062] Alternatively, all power modules in an idle state can be used as target power modules and the switches between them and the first charging gun can be closed when the first power module corresponding to the first charging gun provides charging power to the first charging gun. Alternatively, only part of the power modules in an idle state can be used as target power modules and the switches between them and the first charging gun can be closed.

[0063] It can be understood that closing the switch between the first charging gun and the target power module is equivalent to closing the power distribution contactor between the first charging gun and the target power module, so that the first charging gun can accept the power provided by the target power module.

[0064] S110, in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, controlling at least one target power module to provide charging power for the first charging gun.

[0065] The charging demand power of the first charging gun is the demand power of the load currently connected to the first charging gun. If the power required by the load connected to the first charging gun is greater than the output power of the first power module corresponding to the first charging gun, that is, the total power that the first power module can provide is insufficient to meet the charging demand of the load, other power modules need to be called to supply power for the first charging gun, so as to increase the output power of the first charging gun and thus meet the charging demand of the load. Therefore, at least one target power module is controlled to provide charging power for the first charging gun.

[0066] It can be understood that in the case that the branch voltage where the target power module is located is not equal to the bus voltage, since the branch voltage is lower than the bus voltage, that is, the potential of the branch where the target power module is located is lower than the potential of the bus, no current can be generated from the target power module to the bus, so the target power module cannot supply power for the first charging gun. Therefore, the control of at least one target power module to provide charging power for the first charging gun can be understood as regulating the branch voltage where the target power module is located to reach the bus voltage value, so that the target power module can provide charging power for the first charging gun, thereby increasing the output power of the first charging gun.

[0067] In the embodiments of the present application, the scheduling of the power modules is performed in the charging request stage, that is, when the first charging gun is started, the switch between the first charging gun and the target power module is closed. Since the path between the target power module and the first charging gun has been pre-conducted, the response speed of the target power module to provide charging power for the first charging gun is faster. Compared with the method of closing the switch between the first charging gun and the target power module only when it is found that the power demand of the vehicle end cannot be met during the charging process, the time for conducting the path is saved, and the response rate of the power demand is improved.

[0068] In one embodiment, after the switch between the first charging gun and the target power module is closed in the case that the first charging gun is connected with the load, the power scheduling method of the charging pile system further includes:

[0069] Adjusting at least one target power module to a pre-start state.

[0070] It can be understood that the output voltage of the target power module in the pre-start state is less than the bus voltage. Since the output voltage of the target power module is lower than the bus voltage, that is, the potential of the output end of the target power module is lower than the potential of the bus, no current can be generated from the target power module to the bus.

[0071] For example, the output voltage of the target power module in the pre-start state can be determined as the bus voltage minus 5V.

[0072] In this embodiment, by controlling the at least one target power module to adjust to the pre-start state, the output voltage of the target power module does not need to be boosted from 0, so it can be quickly boosted to the bus voltage, thereby quickly performing power output, improving the response speed to power demand, and improving the charging efficiency.

[0073] In one embodiment, as shown in FIG. 2, the step of adjusting the at least one target power module to the pre-start state comprises:

[0074] S200, determining the charging demand power of the load connected with the first charging gun in the next time period.

[0075] It can be understood that since the charging demand power of the load connected with the first charging gun is not constant but changes over time, the charging demand of the load at the beginning of charging can be low, and the total power of the current corresponding first power module can meet the charging demand of the load, but as time goes on, the charging demand of the load increases, resulting in that the total power of the current corresponding first power module cannot meet the charging demand of the load, and other power modules (i.e., target power modules) need to be called to provide charging power for the first charging gun. Therefore, it is necessary to predict the charging demand power of the load in the next time period, and then determine when to adjust the at least one target power module to the pre-start state.

[0076] Here, the time period can be pre-set, for example, it can be set to 10 minutes as a time period, and the charging in the first time period from the start of charging to the tenth minute of charging. The charging demand in the next time period can be determined at any time in the current time period. For example, the charging demand power in the next time period (i.e., the second time period) can be determined at the ninth minute of charging.

[0077] S210, in the case that the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, switching the working state of the power module in the at least one target power module to the pre-start state.

[0078] If it is determined that the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, it indicates that the total power output by the first charging gun in the next time period will be insufficient to meet the charging demand of the load in the next time period. For example, the current first charging gun is provided with charging power by the first power module corresponding to the first charging gun, and the total power provided is 40 kW, but it is determined that the charging demand power of the load in the next time period is 60 kW, that is, the charging demand power of the load in the next time period will be greater than 40 kW, and the first power module currently providing charging power for the first charging gun cannot meet the power supply demand of 60 kW. In this case, the working state of at least one target power module in communication with the first charging gun needs to be switched to the pre-start state, so that when the charging demand power of the load is greater than the total power output by the current first charging gun, the power module in the pre-start state can be quickly called to provide charging power for the first charging gun.

[0079] It can be understood that, since the power module can include a plurality of power modules, switching the working state of the target power module to the pre-start state can be understood as switching the working state of at least one power module in the target power module to the pre-start state. For example, in the case where one target power module includes a plurality of power modules, if starting one of the power modules can meet the charging demand of the load in the next time period, only this power module can be controlled to switch to the pre-start state, and the other power modules remain in the idle state.

[0080] In this embodiment, the charging demand power of the load in the next time period is predicted in advance, and in the case where it is determined that the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, at least one power module of at least one target power module is controlled to switch to the pre-start state in advance, so that the power module in the pre-start state can be quickly called to provide charging power for the first charging gun, thereby meeting the charging demand of the load and improving the response speed to the power demand of the load and the charging efficiency of the charging pile to the load.

[0081] In one embodiment, as shown in FIG. 3, step S200, the charging demand power of the load connected to the first charging gun in the next time period is determined, including:

[0082] S300, obtaining the historical charging data of the load connected to the first charging gun and the current charging duration of the load.

[0083] It can be understood that the parameter information of the load connected to the first charging gun can be obtained, and the charging demand power of the load connected to the first charging gun can be determined from the parameter information of the load.

[0084] Optionally, the charging pile can acquire the parameter information of the vehicle, for example, the VIN code (Vehicle Identification Number) of the vehicle, or the EvID / Mac address of the vehicle, from which the basic information of the vehicle (including at least one of the manufacturer, the year, the model, the body type and code, the engine code, and the assembly location) can be determined.

[0085] Optionally, the parameter information of the load can also include the SOC (State of Charge) value of the battery, which can reflect the remaining capacity of the battery. When the battery is fully discharged, the SOC value is 0, and when the battery is fully charged, the SOC value is 1. Generally, the SOC value is between 0 and 100%.

[0086] Optionally, the historical charging data of the load is determined according to the parameter information of the load.

[0087] For example, when the parameter information is the vehicle identification code or the identification address, the basic information of the vehicle can be determined, and the historical charging data of the vehicle can be further acquired according to the basic information. Specifically, only the historical charging data of the vehicle can be acquired, or the historical charging data of the vehicles corresponding to the basic information can be acquired. For example, when the load is determined to be a vehicle of A brand and A model according to the vehicle identification code, only the historical charging data of the vehicle can be acquired, or the historical charging data of multiple vehicles of A brand and A model can be acquired, specifically, in the cloud server of A brand.

[0088] For example, when the parameter information is the SOC value of the battery, the charging power data corresponding to different SOC values during the historical charging process of the vehicle can be acquired.

[0089] S310, according to the historical charging data of the load and the current charging duration of the load, the charging demand power of the load in the next time period is predicted.

[0090] It can be understood that the charging demand power of the load is related to the charging duration of the load or the SOC value of the load.

[0091] It can be understood that the power demand of the charging process of different basic information vehicles varies, for example, the historical charging data of the A vehicle indicates that the charging demand usually reaches the maximum value at 5 minutes after starting charging, and the charging demand can reach the maximum charging power of the vehicle, and the historical charging data of the B vehicle indicates that the charging demand reaches the maximum value at 15 minutes after starting charging, and the charging demand can reach the maximum charging power of the vehicle. Therefore, the historical charging data of the vehicle and the charging time of the current load need to be combined to predict the charging demand power of the current load at the next time end.

[0092] It can be understood that there is usually a certain correspondence between the charging power of the battery and the SOC value, for example, when the SOC value is below a certain threshold (for example: 80%), the charging power of the battery is relatively large (for example: 300KW), which can improve the charging speed of the battery. However, when the SOC value is above a certain threshold (for example: 80%), in order to protect the battery, the charging power is reduced (for example: 100KW), and when the SOC value is close to 100%, the battery can be charged in a trickle charging manner, and the charging power is the lowest (for example: 5KW). Therefore, the historical charging data of the vehicle and the SOC value of the current load need to be combined to predict the charging demand power of the current load at the next time period.

[0093] In an embodiment of the present application, the total charging time of the load can be divided into multiple time periods according to the historical charging data of the load, and the total charging time of the load can be directly obtained according to the historical charging data of the load. For example, the average time required for the load to charge in the past ten times is 2 hours, or the average time required for the vehicle corresponding to the load to charge in the past ten times is 2 hours, and the total charging time of the load can be set as 2 hours. The time period can be pre-set, for example, 10 minutes can be set as a time period, that is, the first time period of charging is defined as the first 10 minutes from the start of charging. Then, combined with the current charging time of the load, it can be determined that the load is currently in which time period of charging, for example, the current charging time of the load is 5 minutes after starting charging, which belongs to the first time period in the above example. Based on the historical charging data of the load, the corresponding charging demand power of the load in each time period can also be obtained, so that the charging demand power of the load at the next time period can be predicted by combining the current charging time of the load. For example, based on the historical charging data of the load, it can also be obtained that the corresponding charging demand power of the load is 100KW in the first time period (0-10 minutes), and the corresponding charging demand power of the load is 200KW in the second time period (10-20 minutes), and if the current charging time of the load is 5 minutes after starting charging, the charging demand power of the load at the next time period can be obtained as 200KW.

[0094] In an optional embodiment, the historical charging experience data of the load can be queried according to the parameter information of the load, and the power demand curve corresponding to the load can be fitted based on the historical charging data of the load. The abscissa of the power demand curve can be time or SOC value, and the ordinate of the power demand curve can be charging demand power. Therefore, the charging demand power of the next stage of the charging gun can be calculated from the power demand curve according to the SOC value of the current load and the charging time.

[0095] In the embodiment, the parameter information of the load can be obtained, and the historical charging data of the load can be determined according to the parameter information of the load. The charging demand power of the load in the next time period can be predicted according to the historical charging data and the current charging time of the load. Therefore, the charging demand power of the load can be predicted in advance, so that at least one power module in at least one target power module can be switched to a pre-start state in advance, so that the power module in the pre-start state can be quickly called, and the charging demand of the load can be met.

[0096] In one embodiment, as shown in FIG. 4, in step S210, when the charging demand power of the load in the next time period is greater than the charging demand power of the load in the current time period, the working state of the power module in at least one target power module is switched to a pre-start state, including:

[0097] S400, determining a first power difference according to the charging demand power of the load in the next time period and the total charging power currently provided by the first charging gun.

[0098] It can be understood that the total charging power currently provided by the first charging gun is the power currently provided by the first charging gun by the corresponding first power module. The charging demand power of the load in the next time period is the charging demand power of the load in the next time period determined by the above-mentioned embodiment. Then, the first power difference can be determined according to the difference between the charging demand power of the load in the next time period and the total charging power currently provided by the first charging gun. For example, the total power provided by the first charging gun by the corresponding first power module is 40kW, and the charging demand power of the load in the next time period is determined to be 60kW, so the first power difference is 60kW-40kW=20kW.

[0099] S410, obtaining information of a first target power module according to the first power difference.

[0100] It can be understood that, in the case that the specifications of all power modules of the target power module are the same, the number of required power modules can be determined according to the first power difference, that is, according to the first power difference, it can be determined how many power modules are required to meet the first power difference, for example, it is determined that the first power difference is 50kW, and the maximum output power of a power module of the target power module is 30kW, then two power modules are required to provide power to meet the demand of the first power difference. Then any two power modules can be used as the first target power module.

[0101] If the target power module includes multiple power modules, and the specifications of at least two power modules are different, that is, the maximum output power of a power module is 50kW, and the maximum output power of a power module is 30kW, then only according to the actual required power, which power modules are selected as the first target power module can be selected, as long as the sum of the power of the determined power modules is greater than the first power difference. For example, it is determined that the first power difference is 100kW, the target power module includes three power modules, and the maximum output power of the three power modules is 20kW, 100kW and 150kW respectively, then the first target power module can be the power module with the maximum output power of 150kW, and the first target power module can also be the power module with the maximum output power of 20kW and the power module with the maximum output power of 100kW. Of course, in the case that multiple power modules have multiple combinations that can fill the first power difference, the scheme with fewer calling power modules is preferred.

[0102] S420, switching the working state of the first target power module to a pre-start state.

[0103] It can be understood that, after the first target power module is determined, the working state of the first target power module can be switched to a pre-start state, and the pre-start state has been introduced in the above embodiment and will not be repeated here.

[0104] In this embodiment, the first target power module that can meet the first power difference can be determined according to the first power difference, so that the required first target power module can be controlled to be in a pre-start state, to ensure that the power output can meet the charging demand, and at the same time ensure the rest of the other power modules, thereby improving the service life of the power module to a certain extent.

[0105] In one embodiment, as shown in FIG. 5, step S110, in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, at least one target power module is controlled to provide charging power for the first charging gun, comprising:

[0106] S500, in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, adjusting the output voltage and the output current of at least one target power module in the pre-start state, so that the at least one target power module in the pre-start state provides the charging power for the first charging gun.

[0107] The output voltage and the output current of the power module in the working state are calculated according to the actual power demand, and the output voltage and the output current of at least one target power module in the pre-start state are adjusted to the calculated actual voltage and current required.

[0108] It can be understood that the output voltage of the target power module is adjusted to be greater than or equal to the bus voltage to supply power to the first charging gun, but the output current of the target power module can be adjusted according to the actual power demand. Specifically, the output voltage of the target power module can be adjusted to be greater than or equal to the demand voltage of the vehicle charging, wherein the demand voltage of the vehicle charging is greater than the bus voltage.

[0109] In one of the embodiments, the output current of the power module in the pre-start state can be a preset minimum output current. Since the output current of the power module is the preset minimum output current, the power consumption of the power module at this time is the lowest power consumption, thereby reducing the power consumption of the power module in the pre-start state to the lowest, achieving the effect of reducing energy loss.

[0110] In the embodiment, in the case that the charging demand power of the load in the current time period is greater than the total charging power currently provided for the first charging gun, in order to meet the charging demand power, the target power module in the pre-start state is controlled to switch to the working state to perform rapid power output.

[0111] In one embodiment, as shown in FIG. 6, step S410, obtaining the information of the first target power module according to the first power difference, can include:

[0112] S600, obtaining the working time length of each power module in the at least one target power module.

[0113] It can be understood that the working time length of each power module in the target power module can be recorded, and the working time length can be understood as the cumulative working time length of the power module, or can be understood as the total working time length of the power module in a period of time. The working time length information of each power module is stored for easy viewing and sorting.

[0114] S610, determining the first target power module from the at least one target power module according to the working time length of each power module.

[0115] It can be understood that the plurality of power modules in the target power module group can be sorted according to the working time from short to long first, and then according to the required first power difference, the power module capable of meeting the first power difference is selected as the first target power module according to the priority of the sorting. For example, the target power module group includes M power modules, all the power modules have the same specifications, in order to meet the first power difference, n power modules need to be selected as the first target power module, then according to the sorting of the working time of the M power modules, n power modules with relatively short working time are selected from the M power modules as the first target power module.

[0116] It can be understood that n is an integer greater than or equal to 1, and the shorter the working time of the power module, the higher the priority of the power module. Generally speaking, the shorter the working time of the power module, the longer the service life of the power module, so the power module with shorter working time is called first, which can balance the service life of each power module to some extent and prolong the overall service life of the power module group.

[0117] In this embodiment, the power modules in the target power module group can be sorted according to the working time of each power module in the target power module group, and the power module with relatively short working time is selected first to provide charging power, so that the service life of each power module can be balanced and the overall service life of the target power module group can be prolonged.

[0118] It can be understood that the working state of the first target power module called is switched to the pre-start state, and the other power modules not called can remain in the idle state (for example, in the shutdown state or the hibernation state).

[0119] Optionally, since the output power of the power module is in the best working state when the output power is 50% to 80%, the number of n can also be determined based on this. In this way, it can be ensured that all the started power modules can work in the best working state. For example, the current first power difference requires 50kW of power, each power module has the same specifications and the maximum output power is 30kW, and the power that can be output by the power module in the best working state is 15W to 24W. Therefore, in order to meet the first power difference and keep the power module in the best working state, the number of n is determined to be 3, that is, three power modules with output of 15W to 24W are required to meet the demand of the first power difference, and it is ensured that the three power modules are in the best working state.

[0120] In this embodiment, the power that each power module can provide in the best working state can be further determined in combination with the best working state of each power module, so as to determine the first target power module, which can ensure that the first target power module can work in the best working state and the loss of the power module is small.

[0121] In one embodiment, after the switch closing the path between the first charging gun and the target power module, the power scheduling method of the charging pile system further comprises:

[0122] In the case that the target charging gun corresponding to the target power module is started, disconnecting the path between the target power module and the first charging gun.

[0123] It can be understood that in the case that a certain target charging gun needs to be started, it is necessary to first detect whether the target power module corresponding to the target charging gun is working. If the target power module corresponding to the target charging gun is working, i.e. the first charging gun is calling the target power module, the target power module needs to be closed first, and then the switch between the target power module and the first charging gun is disconnected after the target power module stops working.

[0124] It can be understood that if the target charging gun corresponding to the target power module is started, it means that the target charging gun will call the target power module to supply power to the load connected to the target charging gun. If the target power module has been called by the first charging gun, the target charging gun cannot call the power module corresponding to itself at this time, therefore, the target power module needs to be shut down to stop providing power to the first charging gun.

[0125] In this embodiment, in the case that the target charging gun corresponding to the target power module is started, the path between the target power module and the first charging gun is disconnected, so that the target power module can provide power to the target charging gun corresponding to itself, thereby facilitating the simultaneous charging of multiple charging guns.

[0126] It should be understood that although each step in the flowcharts of FIGS. 1-6 is shown in sequence according to the direction of the arrow, these steps are not necessarily executed in sequence according to the direction of the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in FIGS. 1-6 can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0127] In one embodiment, as shown in FIG. 7, a charging pile system is provided, comprising: a plurality of charging guns 10 and a plurality of power modules 20, a switching device 30, a controller (not shown in the figure), wherein:

[0128] The plurality of charging guns 10 and the plurality of power modules 20 are connected one-to-one.

[0129] The switching device 30 is connected with the plurality of charging guns 10 and the plurality of power modules 20, for selectively conducting a path between any charging gun 10 and any power module 20.

[0130] The controller (not shown in the figure, connected with each module) is connected with the plurality of charging guns 10, the plurality of power modules 20, and the switching device 30, respectively, and the controller is used to control the switching device 30 to close a switch of a path between a first charging gun 10 and a target power module 20 in a case where the first charging gun 10 is connected with a load. In a case where a charging demand power of the first charging gun 10 is greater than an output power of the first power module 20, at least one target power module 20 is controlled to provide charging power for the first charging gun 10.

[0131] Wherein, the target charging gun 10 corresponding to the target power module 20 is different from the first charging gun 10, and the target charging gun 10 is in an idle state.

[0132] Exemplarily, as shown in FIG. 8, the power module 20 can include a plurality of power modules 21 (for example, three power modules 21), and the switching device 30 can include switches K1K2, K3K4, K5K6. When the switch K1K2 is closed, the charging gun A can call the power of the plurality of power modules 21 in the power module A. When the switch K3K4 is closed, the charging gun B can call the power of the plurality of power modules 21 in the power module B. When the switches K1K2 and K5K6 are closed and K3K4 is disconnected, the charging gun 10A can call the power of the plurality of power modules 21 in the power module A and the power module B. When the switches K3K4 and K5K6 are closed and K1K2 is disconnected, the charging gun B can call the power of the plurality of power modules 21 in the power module A and the power module B.

[0133] In the embodiment, by setting the controller, the switch of the path between the first charging gun and the target power module can be closed when the first charging gun is connected with the load, and then at least one target power module is controlled to provide charging power for the first charging gun when the charging demand power of the first charging gun is greater than the output power of the first power module, the target charging gun corresponding to the target power module is different from the first charging gun, and the target charging gun is in an idle state. Since the first charging gun is in or will be in a working state, the path between the first charging gun and the target power module corresponding to the target charging gun in the idle state is turned on, so that the target power module is occupied, and therefore when the charging demand power of the first charging gun is greater than the output power of the first power module, the target power module can be quickly called to provide charging power, so as to improve the response speed of the power demand and improve the charging efficiency.

[0134] In one embodiment, as shown in FIG. 9, a power scheduling device of a charging pile system is provided, which comprises a control module 901, wherein:

[0135] The control module 901 is configured to close the switch of the path between the first charging gun and the target power module when the first charging gun is connected with the load, wherein the target charging gun corresponding to the target power module is different from the first charging gun, and the target charging gun is in an idle state.

[0136] The control module 901 is further configured to control at least one target power module to provide charging power for the first charging gun when the charging demand power of the first charging gun is greater than the output power of the first power module.

[0137] In one embodiment, as shown in FIG. 10, the power scheduling device further comprises an adjusting module 902, wherein:

[0138] The adjusting module 902 is configured to adjust at least one target power module to a pre-start state, wherein the output voltage of the target power module in the pre-start state is less than the bus voltage.

[0139] In one embodiment, as shown in FIG. 11, the adjusting module 902 comprises a determining unit 9021 and a switching unit 9022, wherein:

[0140] The determining unit 9021 is configured to determine the charging demand power of the load connected with the first charging gun in the next time period.

[0141] The switching unit 9022 is configured to switch the working state of the power module in at least one target power module to a pre-start state when the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, wherein the output voltage of the power module in the pre-start state is less than the bus voltage.

[0142] In one embodiment, as shown in FIG. 12, the determining unit 9021 comprises an obtaining sub-unit 90211 and a predicting sub-unit 90212, wherein:

[0143] The obtaining sub-unit 90211 is configured to obtain historical charging data of a load connected with the first charging gun and a current charging duration of the load.

[0144] The predicting sub-unit 90212 is configured to predict charging demand power of the load in a next time period according to the historical charging data of the load and the current charging duration of the load.

[0145] In one embodiment, as shown in FIG. 13, the switching unit 9022 comprises a determining sub-unit 90221 and a switching sub-unit 90222, wherein:

[0146] The determining sub-unit 90221 is configured to determine a first power difference according to the charging demand power of the load in the next time period and total charging power currently provided by the first charging gun.

[0147] The determining sub-unit 90221 is further configured to obtain information of a first target power module according to the first power difference.

[0148] The switching sub-unit 90222 is configured to switch a working state of the first target power module to a pre-start state.

[0149] In one embodiment, the determining sub-unit 90221 is further configured to obtain working durations of each power module in at least one target power module, and determine the first target power module from the at least one target power module according to the working durations of each power module.

[0150] In one embodiment, the adjusting module 902 is further configured to, in a case that the charging demand power of the first charging gun is greater than output power of the first power module, adjust output voltage and output current of at least one target power module in the pre-start state, so that the at least one target power module in the pre-start state provides charging power for the first charging gun.

[0151] In one embodiment, the control module 901 is further configured to, in a case that there is a target charging gun corresponding to the target power module in a working state, disconnect a path between the target power module and the first charging gun.

[0152] The specific limitations of the power scheduling device of the charging pile system can refer to the limitations of the power scheduling method of the charging pile system described above, and will not be repeated here. Each module in the power scheduling device of the charging pile system described above can be implemented by software, hardware, and combinations thereof, in whole or in part. The above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory in the computer device in software form, so that the processor calls and executes the operations corresponding to each of the above modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical functional division. In actual implementation, there can be another division manner.

[0153] In one embodiment, a computer device is provided, and an internal structure diagram of the computer device can be as shown in FIG. 14. The computer device includes a processor, a memory, and a network interface connected through a system bus. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The network interface of the computer device is configured to communicate with an external terminal through a network connection. The computer program is executed by the processor to implement a power scheduling method of a charging pile system.

[0154] Those skilled in the art can understand that the structure shown in FIG. 14 is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. A specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0155] In one embodiment, a computer device is provided, including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps in each of the method embodiments described above.

[0156] In one embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the steps in each of the method embodiments described above.

[0157] In one embodiment, a computer program product is provided, and the computer program product includes a computer program. The computer program is executed by a processor to implement the steps in each of the method embodiments described above.

[0158] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when executed, can include the processes of the above-mentioned embodiment methods. Any reference to memory, storage, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0159] In the description of the present specification, the description of the terms "some embodiments", "other embodiments", "ideal embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0160] The technical features of the above embodiments can be combined in any way. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0161] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A power scheduling method for a charging pile system, characterized in that, The charging pile system includes a plurality of charging guns and a plurality of power modules, and the plurality of charging guns and the plurality of power modules are connected one by one, and the method comprises: In the case that the first charging gun is connected with the load, the switch between the first charging gun and the target power module is closed, wherein the target power module corresponds to a target charging gun different from the first charging gun, and the target charging gun is in an idle state; In the case that the charging demand power of the first charging gun is greater than the output power of the first power module, at least one target power module is controlled to provide charging power for the first charging gun.

2. The power scheduling method of claim 1, wherein, After the switch between the first charging gun and the target power module is closed, the method further comprises: At least one target power module is adjusted to a pre-start state; The output voltage of the target power module in the pre-start state is less than the bus voltage.

3. The power scheduling method of claim 2, wherein, The power module includes a plurality of power modules, and the at least one target power module is adjusted to the pre-start state, comprising: In the case that the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, the working state of at least one power module in at least one target power module is switched to a pre-start state, wherein the output voltage of the power module in the pre-start state is less than the bus voltage.

4. The power scheduling method of claim 3, wherein, The method further comprises: The historical charging data of the load connected with the first charging gun and the current charging duration of the load are acquired; According to the historical charging data of the load and the current charging duration of the load, the charging demand power of the load in the next time period is predicted. In the case that the charging demand power of the load in the next time period is greater than the charging demand power in the current time period, the working state of the power module in at least one target power module is switched to a pre-start state, comprising:

5. The power scheduling method of claim 3, wherein, According to the charging demand power of the load in the next time period and the total charging power currently provided by the first charging gun, a first power difference is determined; According to the first power difference, the information of a first target power module is acquired; The working state of the first target power module is switched to the pre-start state. According to the first power difference, the information of a first target power module is acquired, comprising:

6. The power scheduling method of claim 5, wherein, The working duration of each power module in at least one target power module is acquired; According to the working duration of each power module, the first target power module is determined from at least one target power module. In the case that the charging demand power of the first charging gun is greater than the output power of the first power module, at least one target power module is controlled to provide charging power for the first charging gun, comprising:

7. The method of claim 2, wherein, In the case that the charging demand power of the first charging gun is greater than the output power of the first power module, the output voltage and the output current of at least one target power module in the pre-start state are adjusted, so that at least one target power module in the pre-start state provides charging power for the first charging gun. ​ 8. The method of claim 1, wherein, After the switch between the first charging gun and the target power module is closed, the method further comprises: In the case that the target charging gun corresponding to the target power module is started, disconnecting the path between the target power module and the first charging gun.

9. A charging station system, characterized by Comprise: A plurality of charging guns and a plurality of power modules, the plurality of charging guns and the plurality of power modules are connected one by one; Switching device, connected with the plurality of charging guns and the plurality of power modules, for selectively conducting the path between any charging gun and any power module; The controller is connected with the plurality of charging guns, the plurality of power modules and the switching device respectively, and the controller is used for closing the switch between the first charging gun and the target power module in the case that the first charging gun is connected with the load, wherein the target charging gun corresponding to the target power module is different from the first charging gun, and the target charging gun is in an idle state; in the case that the charging demand power of the first charging gun is greater than the output power of the first power module, at least one target power module is controlled to provide charging power for the first charging gun.

10. A power scheduling device for a charging post system, characterized in that, The device comprises: The control module is used for closing the switch between the first charging gun and the target power module in the case that the first charging gun is connected with the load, wherein the target charging gun corresponding to the target power module is different from the first charging gun, and the target charging gun is in an idle state; The control module is further used for controlling at least one target power module to provide charging power for the first charging gun in the case that the charging demand power of the first charging gun is greater than the output power of the first power module.

11. The power scheduling apparatus of a charging station system according to claim 10, wherein, The device further comprises an adjusting module; The adjusting module is used for adjusting at least one target power module to a pre-starting state, wherein the output voltage of the target power module in the pre-starting state is less than the bus voltage.

12. The power scheduling apparatus of the charging station system according to claim 11, wherein, The power module comprises a plurality of power modules, and the adjusting module comprises: A determination unit is configured to determine charging demand power of a load connected with the first charging gun in a next time period; A switching unit is configured to switch a working state of at least one power module in at least one target power module to a pre-starting state in the case that the charging demand power of the load in the next time period is greater than the charging demand power of the load in a current time period, wherein the output voltage of the power module in the pre-starting state is less than the bus voltage.

13. The power scheduling apparatus of a charging station system according to claim 12, wherein, The determination unit comprises: An acquisition subunit is configured to acquire historical charging data of a load connected with the first charging gun and a current charging duration of the load; A prediction subunit is configured to predict charging demand power of the load in a next time period according to the historical charging data of the load and the current charging duration of the load.

14. The power scheduling apparatus of the charging pile system according to claim 12, wherein, The switching unit comprises: A determination subunit is configured to determine a first power difference according to the charging demand power of the load in the next time period and total charging power currently provided by the first charging gun; The determination subunit is further configured to acquire information of a first target power module according to the first power difference. The switching subunit is configured to switch the working state of the first target power module to the pre-starting state.

15. The power scheduling apparatus of a charging station system according to claim 14, wherein, The determining subunit is further configured to acquire a working duration of each power module in the at least one target power module, and determine the first target power module from the at least one target power module according to the working duration of each power module.

16. The power scheduling apparatus of the charging station system of claim 11, wherein, The adjusting module is further configured to, in a case where the charging demand power of the first charging gun is greater than the output power of the first power module, adjust the output voltage and the output current of the at least one target power module in the pre-starting state, so that the at least one target power module in the pre-starting state provides the charging power for the first charging gun.

17. The power scheduling apparatus of the charging station system of claim 10, wherein, The control module is further configured to, in a case where the target power module corresponds to a target charging gun that is started, disconnect the path between the target power module and the first charging gun. 18.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-17. The processor executes the computer program to implement the steps of the method in any one of claims 1 to 8.

19. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method in any one of claims 1 to 8.

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