Control method, control device and cloud server of energy storage device

Abstract

The embodiment of the application provides a control method and device of an energy storage device and a cloud server, the energy storage device is used for moving between a micro-grid side and a charging side to release electric energy to the micro-grid and take electric energy from the charging side, the control method comprises the following steps: obtaining a first state parameter and a second state parameter; controlling the energy storage device on the micro-grid side to be in a discharging mode when a power supply parameter of the micro-grid side meets a power consumption demand of the micro-grid; and allowing the energy storage device on the charging side to take electric energy from the charging side when the charging side is in a low valley period. The control method, device and cloud server of the energy storage device provided by the embodiment of the application can provide reliable power supply for the micro-grid, and can improve the income of the energy storage device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, and more particularly to a control method and control device of an energy storage device and a cloud server. BACKGROUND

[0002] Existing oil drilling platforms mainly rely on high-power diesel generators for power supply, and the fuel transportation cost is high. The price of diesel in remote areas (such as deserts and offshore) is 2-3 times that on land, and diesel generators have the problems of high carbon emissions and pollution, and low energy efficiency. In addition, it is difficult for remote well sites on land or offshore drilling platforms to access the main power grid, and if new power transmission lines are built, the cost is high and the economy is poor.

[0003] Building a microgrid on an oil drilling platform can solve these problems. The energy storage device in the microgrid can provide power for the load of the oil drilling platform in the microgrid.

[0004] How to provide reliable power supply for the microgrid while improving the income of the energy storage power station is one of the problems to be solved at present. SUMMARY

[0005] The embodiments of the present application provide a control method and control device of an energy storage device and a cloud server, which can provide reliable power supply for the microgrid and improve the income of the energy storage device.

[0006] In a first aspect, a control method of an energy storage device is provided. The energy storage device is used to move between a microgrid and a charging side to release electric energy to the microgrid and obtain electric energy from the charging side. The control method comprises: obtaining a first state parameter and a second state parameter, the first state parameter comprising a power supply parameter of the energy storage device on the microgrid side, a parameter of power consumption demand of the microgrid, and the second state parameter comprising a parameter of whether the charging side is in a peak period or a valley period; controlling at least one energy storage device on the microgrid side to be in a discharging mode to release electric energy to the microgrid, so that the power supply parameter of the microgrid side meets the power consumption demand of the microgrid; and in the case that the charging side is in the valley period, allowing the energy storage device of the charging side to obtain electric energy from the charging side.

[0007] In the embodiments of the present application, at least one energy storage device on the microgrid side can be controlled to be in a discharging mode to discharge the microgrid, so that the power supply parameter of the microgrid side meets the power consumption demand of the microgrid, according to the power supply parameter of the energy storage device on the microgrid side, the parameter of power consumption demand of the microgrid, and the parameter of whether the charging side is in the peak period or the valley period, thereby providing timely and reliable power supply for the microgrid.

[0008] And in the case that the charging side is in the valley period, the energy storage device of the charging side is allowed to obtain electric energy from the charging side, thereby reducing the charging cost of the energy storage device and improving the income of the energy storage device.

[0009] In a possible implementation, when the charging side is in a peak period, at least one energy storage device of the charging side is not allowed to obtain electric energy from the charging side.

[0010] In the embodiments of the present application, when the charging side is in a peak period, the energy storage device of the charging side is not allowed to obtain electric energy from the charging side, so that the charging cost of the energy storage device can be reduced, and the income of the energy storage power station is improved.

[0011] In a possible implementation, when the charging side is in a valley period, at least one energy storage device of the charging side is allowed to obtain electric energy from the charging side, including: when the charging side is in a valley period and there is at least one energy storage device of the charging side that has not completed charging, the at least one energy storage device of the charging side that has not completed charging is controlled to obtain electric energy from the charging side, and the second state parameter further includes information about whether the energy storage device of the charging side has completed charging.

[0012] In the embodiments of the present application, when the charging side is in a valley period and there is at least one energy storage device of the charging side that has not completed charging, the at least one energy storage device of the charging side that has not completed charging is controlled to obtain electric energy from the grid, so that the charging of the energy storage device can be realized when the electricity price of the charging side is low, the charging cost of the energy storage device can be reduced, and the operation income of the energy storage device is improved.

[0013] In a possible implementation, the control method further includes: when the charging side is in a valley period and there is at least one energy storage device of the charging side that has completed charging, the at least one energy storage device of the charging side that has completed charging is moved from the charging side to the micro-grid.

[0014] In the embodiments of the present application, when the charging side is in a valley period and there is at least one energy storage device of the charging side that has completed charging, the at least one energy storage device that has completed charging can be moved from the charging side to the micro-grid side, so that reliable power supply can be provided for the micro-grid side.

[0015] In a possible implementation, moving the at least one energy storage device of the charging side that has completed charging from the charging side to the micro-grid includes: using at least one traction device to transport the at least one energy storage device of the charging side that has completed charging from the charging side to the micro-grid.

[0016] In the embodiments of the present application, the at least one energy storage device of the charging side that has completed charging can be transported from the charging side to the micro-grid by using at least one traction device, so that the energy storage device that has completed charging can be transported from the charging side to the micro-grid in time, and thus reliable power supply can be provided for the micro-grid in time.

[0017] In a possible implementation, the control method further includes: moving the at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side when the at least one energy storage device on the micro-grid side that needs to be charged exists.

[0018] In the embodiments of the present application, the at least one energy storage device on the micro-grid side that needs to be charged can be moved from the micro-grid to the charging side according to the power supply parameter of the energy storage device on the micro-grid side, so that the energy storage battery can be charged in time, and then the energy storage device after charging can be moved to the micro-grid to provide timely and reliable power supply for the micro-grid.

[0019] In a possible implementation, moving the at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side includes: transporting the at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side by using at least one traction device.

[0020] In the embodiments of the present application, the energy storage device on the micro-grid side that needs to be charged can be transported from the micro-grid to the charging side in time by using the traction device, so that the energy storage device that needs to be charged can be charged in time.

[0021] In a possible implementation, the energy storage device is detachably connected with the traction device, and the number of energy storage devices between the micro-grid and the charging side is greater than the number of traction devices.

[0022] In the embodiments of the present application, by setting that the energy storage device is detachably connected with the traction device and the number of energy storage devices between the micro-grid and the charging side is greater than the number of traction devices, the movement of the energy storage device can be flexibly realized by the traction device, the number of traction devices can be reduced, the operation cost of the energy storage device can be reduced, and the income of the energy storage device can be improved.

[0023] In a possible implementation, transporting the at least one energy storage device after charging on the charging side from the charging side to the micro-grid by using at least one traction device includes: sending first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one energy storage device after charging on the charging side from the charging side to the micro-grid.

[0024] In the embodiments of the present application, the first indication information can be sent to the traction device, so as to instruct the traction device to transport the energy storage device after charging on the charging side from the charging side to the micro-grid.

[0025] In a possible implementation, transporting the at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side by using at least one traction device includes: sending second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side.

[0026] In the embodiments of the present application, the second indication information can be sent to the traction device, so as to instruct the traction device to transport the energy storage device on the micro-grid side which needs to be charged from the micro-grid to the charging side.

[0027] In a possible implementation, the energy storage device releases electric energy to the micro-grid through a first power module connected between the energy storage device and the micro-grid, and obtains electric energy from the charging side through a second power module connected between the energy storage device and the charging side.

[0028] In the embodiments of the present application, the energy storage device moving between the micro-grid and the charging side can not include power modules such as PCS, transformers and the like, so as to reduce the load of the traction device, thereby reducing the requirements of the traction device, or in the case that the load of the traction device is unchanged, the weight of other components such as the battery device of the energy storage device can be increased, so as to improve the discharge capacity of the energy storage device.

[0029] In a second aspect, a control device of an energy storage device is provided, the energy storage device being used to move between a micro-grid and a charging side to release electric energy to the micro-grid and obtain electric energy from the charging side, the control device comprising: an obtaining unit configured to obtain first state parameters and second state parameters, the first state parameters comprising power supply parameters of the energy storage device on the micro-grid side and parameters of power consumption demand of the micro-grid, and the second state parameters comprising parameters of whether the charging side is in a peak period or a valley period; and a control unit configured to control at least one energy storage device on the micro-grid side to be in a discharge mode to release electric energy to the micro-grid, in a case that the power supply parameters of the micro-grid side meet the power consumption demand of the micro-grid; and in a case that the charging side is in the valley period, allow the energy storage device of the charging side to obtain electric energy from the charging side.

[0030] In a possible implementation, the control unit is further configured to, in a case that the charging side is in the peak period, not allow the at least one energy storage device of the charging side to obtain electric energy from the charging side.

[0031] In a possible implementation, the control unit is specifically configured to, in a case that the charging side is in the valley period and there is at least one energy storage device of the charging side which has not completed charging, control the at least one energy storage device of the charging side which has not completed charging to obtain electric energy from the charging side, and the second state parameters further comprise information of whether the energy storage device of the charging side has completed charging.

[0032] In a possible implementation, the control unit is further configured to, in a case that the charging side is in the valley period and there is at least one energy storage device of the charging side which has completed charging, move the at least one energy storage device of the charging side which has completed charging from the charging side to the micro-grid.

[0033] In a possible implementation, the control unit is specifically configured to transport the at least one energy storage device completed with charging at the charging side from the charging side to the micro-grid by using the at least one traction device.

[0034] In a possible implementation, the control unit is further configured to move the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side in a case where there is at least one energy storage device needing charging at the micro-grid side.

[0035] In a possible implementation, the control unit is specifically configured to transport the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side by using the at least one traction device.

[0036] In a possible implementation, the energy storage devices are detachably connected with the traction devices, and the number of the energy storage devices between the micro-grid and the charging side is greater than the number of the traction devices.

[0037] In a possible implementation, the control unit is specifically configured to send first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one energy storage device completed with charging at the charging side from the charging side to the micro-grid.

[0038] In a possible implementation, the control unit is specifically configured to send second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one energy storage device needing charging at the micro-grid side from the micro-grid to the charging side.

[0039] In a possible implementation, the energy storage device releases electric energy to the micro-grid through a first power module connected between the energy storage device and the micro-grid, and obtains electric energy from the charging side through a second power module connected between the energy storage device and the charging side.

[0040] In a third aspect, a control device of an energy storage device is provided, the control device comprising a memory and a processor, the memory being configured to store instructions, and the processor being configured to read the instructions and perform the control method in the first aspect and any possible implementation of the first aspect.

[0041] In a fourth aspect, a cloud server is provided, the cloud server comprising the control device in the second aspect and any possible implementation of the second aspect.

[0042] In a fifth aspect, a chip is provided, comprising: a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the control method in the first aspect and any possible implementation of the first aspect.

[0043] In a sixth aspect, a computer program is provided, which, when executed by a computer, causes the computer to implement the control method according to the first aspect and any possible implementation of the first aspect.

[0044] In a seventh aspect, a computer-readable storage medium is provided, which is configured to store a computer program, which, when executed by a computer, causes the computer to implement the control method according to the first aspect and any possible implementation of the first aspect.

[0045] In an eighth aspect, a computer program product is provided, which comprises computer program instructions, which, when executed by a computer, cause the computer to implement the control method according to the first aspect and any possible implementation of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 A schematic diagram of an application scenario of a mobile energy storage device provided by an embodiment of the present application.

[0047] Figure 2 A flowchart of a control method of an energy storage device provided by an embodiment of the present application.

[0048] Figure 3 Another flowchart of a control method of an energy storage device provided by an embodiment of the present application.

[0049] Figure 4 Another flowchart of a control method of an energy storage device provided by an embodiment of the present application.

[0050] Figure 5 A schematic block diagram of a control device of an energy storage device provided by an embodiment of the present application.

[0051] Figure 6 Another schematic block diagram of a control device of an energy storage device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0052] The embodiments of the present application will be further described below in conjunction with the accompanying drawings and examples. The detailed description and the accompanying drawings of the following examples are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, i.e., the present application is not limited to the described examples.

[0053] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is more than two, unless otherwise explicitly specified and limited. The terms "include" and "have" in the specification and claims of the present application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0054] The term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0055] In this paper, the reference to "embodiments" means that the specific features, structures or properties described in conjunction with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. The skilled in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0056] In this application, the terms "up", "down", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0057] The orientation words appearing in the following description are the directions shown in the drawings, and are not a specific structure of the present application. In the description of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] The existing oil drilling platform mainly relies on high-power diesel generators for power supply, and the fuel transportation cost is high. The price of diesel in remote areas (such as deserts and seas) is 2-3 times that of land, and the diesel generator has the problems of high carbon emission and pollution and low energy efficiency. In addition, it is difficult for land remote well sites or offshore drilling platforms to access the main power grid. If a new power transmission line is built, not only the cost is high, but also the economy is poor.

[0059] Building a micro-grid on an oil drilling platform can solve these problems. The energy storage device in the micro-grid can provide power for the load of the oil drilling platform in the micro-grid.

[0060] How to provide reliable power supply for the micro-grid while improving the income of the energy storage power station is one of the problems to be solved at present.

[0061] In view of the above problems, the embodiments of the present application provide a control method, a control device and a cloud server of an energy storage device, the energy storage device is used to move between a micro-grid and a charging side to release electric energy to the micro-grid and obtain electric energy from the charging side, the control method comprises: obtaining a first state parameter and a second state parameter, the first state parameter comprises a power supply parameter of the energy storage device on the micro-grid side, a parameter of the power demand of the micro-grid, and the second state parameter comprises a parameter that the charging side is in a peak period or a valley period; controlling the power supply parameter of the micro-grid side to meet the power demand of the micro-grid at least one energy storage device in the discharge mode to release electric energy to the micro-grid; and in the case that the charging side is in the valley period, allowing the energy storage device of the charging side to obtain electric energy from the charging side.

[0062] The control method, the control device and the cloud server of the energy storage device provided by the embodiments of the present application can provide reliable power supply for the micro-grid, while reducing the charging cost of the energy storage device and improving the income of the energy storage device.

[0063] The following is combined Figures 1 to 4 The control method of the energy storage device provided by the embodiments of the present application is exemplarily introduced.

[0064] Figure 1 The application scenario of the energy storage device provided by the embodiments of the present application is shown in the schematic diagram.

[0065] As Figure 1 shown, the energy storage device can move between the micro-grid and the charging side such as the public power grid to release electric energy to the micro-grid and obtain electric energy from the charging side.

[0066] The charging side refers to the place where the energy storage device is charged. As an example, the charging side can include a public power grid.

[0067] As an example, the micro-grid can include energy storage devices, various loads such as heavy loads, domestic electricity, and lighting. The energy storage devices can provide electricity to various loads, domestic electricity, and the like in the micro-grid.

[0068] As an example, the micro-grid can be built at an oil drilling platform, and the energy storage devices can provide electricity to various loads, domestic electricity, lighting, and the like of the oil drilling.

[0069] As an example, the energy storage devices are connected to the micro-grid through first power modules such as first power conversion systems (PCSs) and first transformers.

[0070] As an example, the energy storage devices can be connected to the charging side through second power modules such as second PCSs and second transformers.

[0071] As an example, when the amount of electricity of the energy storage devices on the micro-grid side is less than or equal to a certain amount of electricity, such as the voltage of the energy storage devices being less than or equal to the discharge cutoff voltage, the traction device can transport the energy storage devices from the micro-grid side to the charging side for charging. For another example, when the amount of electricity of the mobile energy storage devices in the charging side is greater than a certain amount of electricity, such as the voltage of the energy storage devices being greater than or equal to the charging cutoff voltage, the traction device can move the energy storage devices from the charging side to the micro-grid for discharging.

[0072] As an example, the number of traction devices and energy storage devices between the charging side and the micro-grid can be equal, one traction device corresponding to one energy storage device, and the traction device and the energy storage device can be fixedly connected. Alternatively, the number of traction devices between the charging side and the micro-grid can be less than the number of energy storage devices, and the two can be detachably connected. In the case where the energy storage device needs to be moved, the traction device is connected to the energy storage device to transport the energy storage device from one side of the charging side and the micro-grid to the other side.

[0073] As an example, the traction device can be a tractor. For example, the tractor and the energy storage device can be arranged in front and back, i.e., as shown in Figure 1 , the tractor is in front and the energy storage device is behind. Alternatively, the tractor and the energy storage device can also be arranged in up and down, i.e., the energy storage device is placed on the tractor, the tractor is below, and the energy storage device is above.

[0074] As an example, the traction device and / or the energy storage device can communicate with a cloud server.

[0075] For example, the control module of the traction device, such as the electronic control unit (ECU) of the tractor, and the control module of the energy storage device, such as the battery management module, can communicate with the cloud server, or the control module of the traction device and the energy storage device as a whole can communicate with the cloud server. In this way, the cloud server can control the scheduling, charging and discharging of the energy storage device, and control the traction device to transport the energy storage device, and the like based on the state parameters of the energy storage device.

[0076] As an example, the cloud server can also communicate with the monitoring platform.

[0077] For example, the monitoring platform can obtain the state parameters of the traction device and / or the energy storage device through the cloud server, so as to realize the control of the traction device and the energy storage device through the cloud server. The monitoring platform can receive the state parameters of the traction device and / or the energy storage device sent by the cloud server, determine the control information of the traction device and / or the control device according to the state parameters, and then send the control information to the traction device and / or the control device, so as to realize the control of the traction device and / or the energy storage device.

[0078] It should be understood that Figure 1 It should be understood that

[0079] Figure 2 The flowchart of the control method of the energy storage device provided in the embodiments of the present application is shown. The energy storage device can be Figure 1 The energy storage device is used to move between the micro-grid and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side. The control method of the energy storage device can include the following parts or all of the contents.

[0080] 210, obtaining first state parameters and second state parameters.

[0081] The first state parameters include the power supply parameters of the energy storage device on the micro-grid side and the power demand parameters of the micro-grid, and the second state parameters include the parameters of the charging side in the peak period or the valley period.

[0082] In the embodiments of the present application, the micro-grid is a small, local, independent power grid system that can operate independently. The micro-grid can include energy storage devices, various loads, and the like. For example, the micro-grid can be an independent power grid system temporarily built for oil exploration, such as an oil drilling platform, during natural disasters, and the like. In this embodiment, the energy storage device can release electric energy to various loads in the micro-grid.

[0083] The charging side refers to the place where the energy storage device is charged. That is, the energy storage device can obtain electric energy from the charging side.

[0084] For example, the charging side can include a public power grid, which refers to a traditional large power grid, covering a wider area. In the public power grid, electric energy can be transmitted from a power plant to a user through a transmission circuit.

[0085] As an example, the power supply parameter of the micro-grid side energy storage device can include at least one of SOC information, voltage information or dischargeable power information of the micro-grid side energy storage device.

[0086] For example, the power supply parameter of the micro-grid side energy storage device can include an SOC value or a voltage value of the micro-grid side energy storage device.

[0087] For example, the power supply parameter of the micro-grid side energy storage device can include a dischargeable power value of the micro-grid side energy storage device.

[0088] For example, the power supply parameter of the micro-grid side energy storage device can include an SOC value (or a voltage value) and a dischargeable power value of each energy storage device on the micro-grid side.

[0089] For example, the power supply parameter of the micro-grid side energy storage device can include a dischargeable power value of an energy storage device whose SOC value (or voltage value) on the micro-grid side is greater than or equal to a first preset SOC value (or voltage value).

[0090] For another example, the power supply parameter of the micro-grid side energy storage device can include an SOC value of an energy storage device whose SOC value on the micro-grid side is greater than or equal to a first preset SOC value (or a voltage value of an energy storage device whose voltage value on the micro-grid side is greater than or equal to a first preset voltage value) and a dischargeable power value.

[0091] The power demand of the micro-grid can refer to a current power demand of the micro-grid, a power demand in a current period of time or a future power demand.

[0092] As an example, the micro-grid has a power demand at present or in a current period of time.

[0093] As an example, the micro-grid has no power demand at present or in a current period of time, but has a power demand in a future period of time.

[0094] As an example, the parameter of the power demand of the micro-grid can include a demand power of the micro-grid.

[0095] As an example, the power demand is determined based on historical power consumption data of the micro-grid. For example, the power demand of the micro-grid can be determined based on historical power consumption data at the same time of day in the previous few days.

[0096] Alternatively, the power demand can be determined based on a situation of a load to be started by the micro-grid at present or in the future. For example, the power demand of the micro-grid can be determined based on a power of a load to be started by the micro-grid at present or in the future.

[0097] The charging side is in a peak period refers to the charging side is in the power consumption peak charging side of the higher price of the period. The charging side is in a valley period refers to the charging side is in the power consumption trough charging side of the lower price of the period.

[0098] A plurality of energy storage devices are provided between the microgrid and the charging side.

[0099] 220a, at least one energy storage device whose microgrid side power supply parameter meets the power demand of the microgrid is in a discharging mode to release electric energy to the microgrid.

[0100] As an example, at a certain time or a certain period, all of the energy storage devices are located on the microgrid side.

[0101] As another example, part of the energy storage devices are located on the microgrid side, part of the energy storage devices are located on the charging side, and / or part of the energy storage devices are in transit between the microgrid and the charging side.

[0102] The energy storage device in the discharging mode means that the energy storage device has discharging capability, but whether to release electric energy depends on the demand of the microgrid. For example, when the microgrid has power demand in the current period of time, at least one energy storage device whose microgrid side power supply parameter meets the power demand of the microgrid can release electric energy to the microgrid. For another example, when the microgrid has no power demand at present and has power demand in the future, at least one energy storage device whose microgrid side power supply parameter meets the power demand of the microgrid has discharging capability at present and does not release electric energy to the microgrid, and has discharging capability in the future and releases electric energy to the microgrid in the future.

[0103] As an example, at least one energy storage device whose microgrid side power supply parameter meets the power demand of the microgrid means that one or more energy storage devices in the microgrid side energy storage devices can be discharged, and the total dischargeable power can meet the demand power of the microgrid.

[0104] For example, there are 6 energy storage devices on the microgrid side, of which 2 energy storage devices have empty electric quantity, and the other 4 energy storage devices have not empty electric quantity (can be discharged). And according to the current electric quantity, the total dischargeable power of the 3 energy storage devices with the lowest electric quantity among the other 4 energy storage devices can meet the demand power of the microgrid.

[0105] As an example, the total dischargeable power that can meet the demand power of the microgrid can mean that the total dischargeable power is just equal to the demand power of the microgrid, or can mean that the total dischargeable power is slightly greater than the demand power of the microgrid.

[0106] For example, the total dischargeable power of 2 energy storage devices is less than the demand power of the micro-grid, and the total dischargeable power of 3 energy storage devices is greater than or equal to the demand power of the micro-grid. Here, the total dischargeable power of 3 energy storage devices can be considered to satisfy the demand power of the micro-grid.

[0107] As an example, at least one energy storage device satisfying the power demand of the micro-grid can be determined according to the SOC information of the energy storage devices on the micro-grid side.

[0108] The SOC value of the energy storage device is greater than or equal to a first preset value, and the energy storage device is capable of discharging or has discharging capability. For the energy storage device with the SOC value greater than or equal to the first preset SOC value, 2 energy storage devices can satisfy the power demand of the micro-grid regardless of the change of the SOC value. Therefore, only the SOC information of the energy storage devices on the micro-grid side, at least one energy storage device on the micro-grid side satisfying the power demand of the micro-grid can be determined. For example, among the energy storage devices on the micro-grid side with the SOC value greater than or equal to the first preset SOC value, 2 energy storage devices with the lowest and the second lowest SOC values can be selected as the energy storage devices satisfying the power demand of the micro-grid.

[0109] As an example, at least one energy storage device satisfying the power demand of the micro-grid can be determined according to the dischargeable power information of the energy storage devices on the micro-grid side.

[0110] The dischargeable power value of the energy storage device is greater than or equal to a first preset power value, and the energy storage device is capable of discharging or has discharging capability. For the energy storage device with the dischargeable power value greater than or equal to the first preset power value, 2 energy storage devices can satisfy the power demand of the micro-grid regardless of the change of the dischargeable power value. Therefore, only the dischargeable power information of the energy storage devices on the micro-grid side, at least one energy storage device on the micro-grid side satisfying the power demand of the micro-grid can be determined. For example, among the energy storage devices on the micro-grid side with the dischargeable power value greater than or equal to the first preset power value, 2 energy storage devices with the lowest and the second lowest dischargeable power values can be selected as the energy storage devices satisfying the power demand of the micro-grid.

[0111] As an example, at least one energy storage device satisfying the power demand of the micro-grid can be determined according to the SOC information and the dischargeable power information of the energy storage devices on the micro-grid side.

[0112] The SOC value of the energy storage device is greater than or equal to the first preset value, the energy storage device can be discharged or has the ability to discharge. And with the change of SOC, the dischargeable power of the energy storage device will also change. Therefore, it is necessary to determine the SOC information and the dischargeable power information of the energy storage device on the micro-grid side, so as to determine at least one energy storage device on the micro-grid side whose power supply parameter can meet the power demand of the micro-grid. For example, one or more energy storage devices whose total dischargeable power value can meet the demand power of the micro-grid can be selected as the energy storage device that meets the power demand of the micro-grid, among the energy storage devices whose dischargeable power value on the micro-grid side is greater than or equal to the first preset power value.

[0113] It should be understood that the SOC in step 220 can be replaced by voltage. For example, according to the voltage value of the energy storage device on the micro-grid side, at least one energy storage device on the micro-grid side that meets the power demand of the micro-grid can be determined.

[0114] 220b, in the case that the charging side is in the low valley period, at least one energy storage device of the charging side is allowed to obtain electric energy from the charging side.

[0115] The charging side is in the low valley period, and the electricity price of the charging side is low. At this time, the energy storage device of the charging side can be allowed to obtain electric energy from the charging side.

[0116] Figure 3 Another flowchart of the control method of the energy storage device provided in the embodiments of the present application.

[0117] The energy storage device can be Figure 1 The energy storage device is used to move between the micro-grid and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side. The control method of the energy storage device can include the following parts or all contents.

[0118] 310, obtain the first state parameter and the second state parameter.

[0119] The first state parameter includes the power supply parameter of the energy storage device on the micro-grid side, and the parameter of the power demand of the micro-grid. The second state parameter includes the parameter that the charging side is in the peak period or the low valley period.

[0120] 320a, control at least one energy storage device on the micro-grid side whose power supply parameter meets the power demand of the micro-grid to be in the discharge mode to release electricity to the micro-grid.

[0121] 320b, in the case that the charging side is in the low valley period, at least one energy storage device of the charging side is allowed to obtain electric energy from the charging side.

[0122] The contents of steps 310, 320a and 320b can be referred to the relevant description in steps 210, 220a and 220b above, which will not be repeated here.

[0123] 320c, in the case that the charging side is in the peak period, the at least one energy storage device of the charging side is not allowed to obtain electric energy from the charging side.

[0124] The charging side is in the peak period, and the charging side price is high. At this time, the energy storage device of the charging side is not allowed to obtain electric energy from the charging side.

[0125] That is, in this embodiment, if there is an energy storage device on the charging side, the energy storage device of the charging side is allowed to obtain electric energy from the charging side when the charging side price is low, and the energy storage device of the charging side is not allowed to obtain electric energy from the charging side when the charging side price is high.

[0126] In the embodiments of the present application, the at least one energy storage device of the micro-grid side whose power supply parameters meet the power demand of the micro-grid is controlled to be in the discharging mode according to the power supply parameters of the energy storage device of the micro-grid side, the power demand parameters of the micro-grid, and the parameters of whether the charging side is in the peak period or the valley period, so as to discharge the micro-grid, thereby providing timely and reliable power supply for the micro-grid.

[0127] And in the case that the charging side is in the valley period, the energy storage device of the charging side is allowed to obtain electric energy from the charging side; or in the case that the charging side is in the peak period, the energy storage device of the charging side is not allowed to obtain electric energy from the charging side, which can reduce the charging cost of the energy storage device, thereby improving the income of the energy storage power station.

[0128] It should be understood that in the embodiments of the present application, whether the charging side is in the peak period or the valley period, the at least one energy storage device of the micro-grid side whose power supply parameters meet the power demand of the micro-grid needs to be controlled to be in the discharging mode. That is, steps 320a and 320b can be executed at the same time, or steps 320a and 320c can be executed at the same time.

[0129] Figure 4 The flowchart of the control method of the energy storage device provided in the embodiments of the present application. The energy storage device can be Figure 1 The energy storage device is used to move between the micro-grid and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side. The control method of the energy storage device can include the following parts or all contents.

[0130] 410, obtaining first state parameters and second state parameters.

[0131] The first state parameters include the power supply parameters of the energy storage device of the micro-grid side, and the power demand parameters of the micro-grid. The second state parameters include the parameters of whether the charging side is in the peak period or the valley period.

[0132] 420a, the at least one energy storage device that controls the power supply parameter of the micro-grid side to meet the power demand of the micro-grid is in the discharging mode to release electric energy to the micro-grid.

[0133] The contents of steps 310 and 320a can refer to the related description of steps 210 and 220a above, which will not be repeated here.

[0134] 420b, in the case that there is at least one energy storage device that needs to be charged on the micro-grid side, the at least one energy storage device that needs to be charged on the micro-grid side is moved from the micro-grid to the charging side.

[0135] As an example, the energy storage device that needs to be charged on the micro-grid side can refer to the energy storage device whose electric quantity has been emptied or reaches the discharging cutoff condition.

[0136] As an example, the energy storage device whose SOC value on the micro-grid side is less than the first preset SOC value can be moved from the micro-grid to the charging side as the energy storage device that needs to be charged. For example, the SOC value of the energy storage device is less than the first preset value, which can be considered that the electric quantity of the energy storage device has been emptied or reaches the discharging cutoff condition.

[0137] As an example, the energy storage device whose discharging power value on the micro-grid side is less than the first preset power value can be moved from the micro-grid to the charging side as the energy storage device that needs to be charged. For example, the discharging power value of the energy storage device is less than the first preset power value, which can be considered that the electric quantity of the energy storage device has been emptied or reaches the discharging cutoff condition.

[0138] As an example, the energy storage device whose SOC value on the micro-grid side is less than the first preset SOC value and whose discharging power value is less than the first preset power value can be moved from the micro-grid to the charging side as the energy storage device that needs to be charged. For example, the SOC value of the energy storage device is less than the first preset value and the discharging power value is less than the first preset power value, which can be considered that the electric quantity of the energy storage device has been emptied or reaches the discharging cutoff condition.

[0139] It should be understood that the SOC in step 220 can be replaced by voltage. For example, the energy storage device whose voltage value on the micro-grid side is less than the first preset voltage is moved from the micro-grid to the charging side as the energy storage device that needs to be charged.

[0140] As an example, the first preset SOC value, the first preset voltage value, or the first preset power value can be determined based on the SOC value, the voltage value, or the discharging power value respectively corresponding to the discharging cutoff condition of the energy storage device. For example, the first preset SOC value can be equal to the SOC value respectively corresponding to the discharging cutoff condition of the energy storage device, or the first preset SOC value can be greater than the SOC value respectively corresponding to the discharging cutoff condition of the device.

[0141] In the embodiments of the present application, at least one energy storage device on the micro-grid side that needs to be charged can be moved from the micro-grid to the charging side according to the power supply parameters of the energy storage device on the micro-grid side, so that the energy storage battery can be charged in time, and then the charged energy storage device can be moved to the micro-grid to provide timely and reliable power supply for the micro-grid.

[0142] In some embodiments, at least one traction device can be used to transport at least one energy storage device on the micro-grid side that needs to be charged from the micro-grid to the charging side.

[0143] As an example, the traction device can include a tractor. The tractor is connected with the energy storage device to transport the energy storage device.

[0144] As an example, the traction device and the energy storage device can be arranged in front and back, i.e., the tractor is in front and the energy storage device is behind. A hub is arranged below the energy storage device, and the tractor can drive the hub below the energy storage device to move, so as to achieve the purpose of transporting the energy storage device.

[0145] As another example, the traction device and the energy storage device can be arranged in up and down, i.e., the energy storage device is above the traction device. The traction device moves to achieve the purpose of transporting the energy storage device.

[0146] In the embodiments of the present application, the energy storage device on the micro-grid side that needs to be charged can be transported from the micro-grid to the charging side in time by using the traction device, so that the energy storage device that needs to be charged can be charged in time.

[0147] 420c, in the case that the charging side is in a low valley period and there is at least one energy storage device that has not completed charging on the charging side, the at least one energy storage device that has not completed charging on the charging side is controlled to obtain electric energy from the charging side.

[0148] The second state parameter further includes information whether the energy storage device on the charging side has completed charging.

[0149] As an example, whether the energy storage device has completed charging refers to whether the energy storage device is fully charged or reaches a charging cutoff condition.

[0150] As an example, whether the energy storage device is fully charged or reaches a charging cutoff condition can be determined based on SOC information and / or voltage information of the energy storage device. For example, when the SOC value of the energy storage device is greater than or equal to a second preset SOC value, it can be considered that the energy storage device is fully charged or reaches a charging cutoff condition, i.e., the energy storage device has completed charging; otherwise, it is considered that the energy storage device is not fully charged or does not reach a charging cutoff condition, i.e., the energy storage device has not completed charging. For another example, when the voltage value of the energy storage device is greater than or equal to a second preset voltage value, it can be considered that the energy storage device is fully charged or reaches a charging cutoff condition, i.e., the energy storage device has completed charging; otherwise, it is considered that the energy storage device is not fully charged or does not reach a charging cutoff condition, i.e., the energy storage device has not completed charging.

[0151] As an example, the second preset SOC value and the second preset voltage value can be determined according to the SOC value and the voltage corresponding to the condition that the energy storage device is fully charged or reaches the charging cutoff condition. For example, the second preset SOC value can be equal to the SOC value corresponding to the condition that the energy storage device is fully charged or reaches the charging cutoff condition.

[0152] It should be understood that the second preset SOC value is greater than the first preset SOC value described above, and the second preset voltage value is greater than the first preset voltage value described above.

[0153] In the embodiments of the present application, in the case that the charging side is in the valley period and there is at least one energy storage device with uncompleted charging on the charging side, the at least one energy storage device with uncompleted charging on the charging side is controlled to take power from the power grid, so that the charging of the energy storage device can be realized when the electricity price on the charging side is low, the charging cost of the energy storage device can be reduced, and the operation benefit of the energy storage device can be improved.

[0154] 420d, in the case that the charging side is in the valley period and there is at least one energy storage device with completed charging on the charging side, the at least one energy storage device with completed charging on the charging side is moved from the charging side to the microgrid.

[0155] The energy storage device is charged in the valley period on the charging side, and then the charging can be completed in the valley period.

[0156] In the embodiments of the present application, in the case that the charging side is in the valley period and there is at least one energy storage device with completed charging on the charging side, the at least one energy storage device with completed charging on the charging side can be moved from the charging side to the microgrid side, so that reliable power supply can be provided for the microgrid side.

[0157] In some embodiments, the at least one traction device is used to transport the at least one energy storage device with completed charging on the charging side from the charging side to the microgrid.

[0158] The traction device and the energy storage device can be set as described above, and the present application will not be described here.

[0159] In the embodiments of the present application, the at least one traction device can be used to transport the at least one energy storage device with completed charging on the charging side from the charging side to the microgrid, so that the energy storage device with completed charging can be transported from the charging side to the microgrid in time, and thus reliable power supply can be provided for the microgrid in time.

[0160] 420e, in the case that the charging side is in the peak period, the at least one energy storage device on the charging side is not allowed to obtain electric energy from the charging side.

[0161] Some descriptions of step 440e can refer to the related content of step 330c, and the present application will not be described here.

[0162] In some embodiments, the energy storage devices are detachably connected with the traction devices, and the number of energy storage devices between the micro-grid and the charging side is greater than the number of traction devices.

[0163] As an example, when the energy storage devices need to be moved between the micro-grid and the charging side, the traction devices can be connected with the energy storage devices to transport the energy storage devices between the micro-grid and the charging side. When the traction devices move the energy storage devices to one of the micro-grid or the charging side, the connection between the traction devices and the energy storage devices can be disconnected. At this time, if there are other energy storage devices that need to be moved in one of the micro-grid or the charging side, the traction device can be moved to the other energy storage device and connected with the other energy storage device to transport the other energy storage device.

[0164] In the embodiments of the present application, by setting the detachable connection between the energy storage devices and the traction devices, and the number of energy storage devices between the micro-grid and the charging side is greater than the number of traction devices, the movement of the energy storage devices can be flexibly realized by the traction devices, and the number of traction devices can be reduced, the operating cost of the energy storage devices can be reduced, and the revenue of the energy storage devices can be improved.

[0165] In some embodiments, the traction device for transporting at least one energy storage device that needs to be charged in the micro-grid from the micro-grid to the charging side and the traction device for transporting at least one energy storage device that has completed charging in the charging side from the charging side to the micro-grid can be the same traction device or can be different traction devices, which can be determined based on the actual scheduling situation. For example, if the transport times of the two are the same or overlap, the two are different traction devices; or if the transport times of the two do not overlap at all, the two can be the same traction device.

[0166] Optionally, in some embodiments, the number of energy storage devices and traction devices between the micro-grid and the charging side can be equal, that is, one traction device is connected with one energy storage device.

[0167] As an example, the traction device and the energy storage device can be an integrated structure, and the two are fixedly connected.

[0168] As an example, when the energy storage devices need to be moved between the micro-grid and the charging side, the traction devices transport the energy storage devices between the micro-grid and the charging side. When the traction devices move the energy storage devices to the micro-grid side for discharging, the traction devices wait in the micro-grid side. When the energy storage devices need to be moved to the charging side for charging after completing discharging, the traction devices move the energy storage devices to the charging side, and the traction devices wait in the charging side for the energy storage devices to complete charging.

[0169] In some embodiments, the at least one traction device is used to transport the at least one energy storage device completed charging at the charging side from the charging side to the micro-grid, including: sending first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one energy storage device completed charging at the charging side from the charging side to the micro-grid.

[0170] For example, the cloud server can directly send the first indication information to the traction device.

[0171] Alternatively, the cloud server can also indirectly send the first indication information to the traction device. For example, when the traction device is an integrated structure with the energy storage device, the cloud server can send second indication information to the control module of the integrated structure, and then the control module of the integrated structure can send the first indication information to the at least one traction device. The at least one traction device can transport the at least one energy storage device completed charging at the charging side from the charging side to the micro-grid based on the first indication information.

[0172] In the embodiments of the present application, the second indication information can be sent to the traction device, so as to instruct the traction device to transport the energy storage device completed charging at the charging side from the charging side to the micro-grid.

[0173] In some embodiments, the at least one traction device is used to transport the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side, including: sending second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side.

[0174] For example, the cloud server can directly send the second indication information to the traction device.

[0175] Alternatively, the cloud server can also indirectly send the second indication information to the traction device. For example, when the traction device is an integrated structure with the energy storage device, the cloud server can send second indication information to the control module of the integrated structure, and then the control module of the integrated structure can send the second indication information to the at least one traction device. The at least one traction device can transport the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side based on the second indication information.

[0176] In the embodiments of the present application, the second indication information can be sent to the traction device, so as to instruct the traction device to transport the energy storage device needing charging at the micro-grid from the micro-grid to the charging side.

[0177] In some embodiments, the energy storage device releases electric energy to the micro-grid through a first power module connected between the energy storage device and the micro-grid, and obtains electric energy from the charging side through a second power module connected between the energy storage device and the charging side.

[0178] That is, the energy storage device does not include power modules such as the first power module and the second power module for energy transmission between the micro-grid and the charging side.

[0179] In the embodiments of the present application, the energy storage device moving between the micro-grid and the charging side can not include power modules such as the PCS, the transformer, etc., which can reduce the load of the traction device, thereby reducing the requirements of the traction device, or can improve the weight of other components such as the battery device of the energy storage device under the condition that the load of the traction device is unchanged, thereby improving the discharge capacity of the energy storage device.

[0180] It should be understood that the size of the sequence number of each process described above in various embodiments of the present application does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0181] The control method of the energy storage device of the embodiments of the present application is described in detail above, and the control device of the energy storage device of the embodiments of the present application will be described in detail below. Figure 5 and Figure 6 The control device of the energy storage device of the embodiments of the present application is described in detail, and the technical features described in the method embodiments are applicable to the following device embodiments.

[0182] Figure 5 is a schematic block diagram of the control device of the energy storage device provided by the embodiments of the present application. As shown in Figure 5 The control device 4000 includes the following parts or all of them.

[0183] The energy storage device is used to move between the micro-grid and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side.

[0184] The control device 4000 includes an acquisition unit 4010 and a control unit 4020.

[0185] The acquisition unit 4010 is configured to acquire first state parameters and second state parameters, the first state parameters including power supply parameters of the energy storage device on the micro-grid side and parameters of power consumption demand of the micro-grid, and the second state parameters including parameters of the charging side being in a peak period or a valley period; and the control unit 4020 is configured to control at least one energy storage device on the micro-grid side to be in a discharge mode to release electric energy to the micro-grid when the power supply parameters of the micro-grid side meet the power consumption demand of the micro-grid, and allow the energy storage device on the charging side to obtain electric energy from the charging side when the charging side is in the valley period.

[0186] In some embodiments, the control unit 4020 is further configured to not allow at least one energy storage device on the charging side to obtain electric energy from the charging side when the charging side is in the peak period.

[0187] In some embodiments, the control unit 4020 is specifically configured to control the at least one energy storage device which is not completed charging at the charging side to obtain electric energy from the charging side in the case that the charging side is in the low valley period and there is at least one energy storage device which is not completed charging at the charging side, and the second state parameter further comprises information of whether the energy storage device at the charging side is completed charging.

[0188] In some embodiments, the control unit 4020 is further configured to move the at least one energy storage device which is completed charging at the charging side from the charging side to the micro-grid in the case that the charging side is in the low valley period and there is at least one energy storage device which is completed charging at the charging side.

[0189] In some embodiments, the control unit 4020 is specifically configured to transport the at least one energy storage device which is completed charging at the charging side from the charging side to the micro-grid by using the at least one traction device.

[0190] In some embodiments, the control unit 4020 is further configured to move the at least one energy storage device which needs charging at the micro-grid side from the micro-grid to the charging side in the case that there is at least one energy storage device which needs charging at the micro-grid side.

[0191] In some embodiments, the control unit 4020 is specifically configured to transport the at least one energy storage device which needs charging at the micro-grid side from the micro-grid to the charging side by using the at least one traction device.

[0192] In some embodiments, the energy storage device is detachably connected with the traction device, and the number of energy storage devices between the micro-grid and the charging side is greater than the number of traction devices.

[0193] In some embodiments, the control unit 4020 is specifically configured to send first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one energy storage device which is completed charging at the charging side from the charging side to the micro-grid.

[0194] In some embodiments, the control unit 4020 is specifically configured to send second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one energy storage device which needs charging at the micro-grid side from the micro-grid to the charging side.

[0195] In some embodiments, the energy storage device releases electric energy to the micro-grid through a first power module connected between the energy storage device and the micro-grid, and obtains electric energy from the charging side through a second power module connected between the energy storage device and the charging side.

[0196] It should be understood that the above and other operations and / or functions of each module in the control device 4000 of the energy storage device are to realize corresponding flows in each method Figures 2 to 4 , which will not be repeated here for brevity.

[0197] Figure 6 A schematic block diagram of the control device 5000 of the energy storage device of the embodiments of the present application is shown. As shown, the control device 5000 includes a processor 5010 and a memory 5020, wherein the memory 5020 is configured to store instructions, and the processor 5010 is configured to read the instructions and perform the method of the various embodiments of the present application based on the instructions. Figure 6

[0198] The memory 5020 can be a separate device independent of the processor 5010, or can be integrated in the processor 5010.

[0199] Optionally, as shown, the control device 5000 of the energy storage device can further include a transceiver 5030, and the processor 5010 can control the transceiver 5030 to communicate with other devices. Specifically, information or data can be sent to other devices, or information or data sent by other devices can be received. Figure 5

[0200] It should be understood that the processor of the embodiments of the present application can be an integrated circuit chip having a processing capability of signals. In the implementation process, each step of the above method embodiments can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The processor mentioned above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register or other mature storage medium in the art. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

[0201] ​​It can be appreciated that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (read-only memory, ROM), a programmable read-only memory (programmable rom, PROM), an erasable programmable read-only memory (erasable PROM, EPROM), an electrically erasable programmable read-only memory (electrically eprom, EEPROM) or a flash memory. The volatile memory can be a random access memory (random access memory, RAM) used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the system and method described herein is intended to include but not limited to these and any other suitable types of memory.

[0202] Optionally, the cloud server provided by the embodiments of the present application comprises the control device provided by the embodiments of the present application.

[0203] The embodiments of the present application further provide a computer readable storage medium for storing a computer program.

[0204] Optionally, the computer readable storage medium can be applied to the detection device of the battery system in the embodiments of the present application, and the computer program makes the computer execute the corresponding process realized by the control device in the various methods of the embodiments of the present application when the computer program runs on the computer. For the sake of brevity, it will not be repeated here.

[0205] The embodiments of the present application further provide a computer program product comprising computer program instructions.

[0206] Optionally, the computer program product can be applied to the control device of the energy storage device in the embodiments of the present application, and the computer program instructions make the computer execute the corresponding processes implemented by the control device of the energy storage device in the various methods of the embodiments of the present application when the computer program instructions run on the computer. For the sake of brevity, details are not repeated here.

[0207] The embodiments of the present application further provide a computer program.

[0208] Optionally, the computer program can be applied to the control device of the energy storage device in the embodiments of the present application, and the computer program instructions make the computer execute the corresponding processes implemented by the control device of the energy storage device in the various methods of the embodiments of the present application when the computer program instructions run on the computer. For the sake of brevity, details are not repeated here.

[0209] Those skilled in the art can understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0210] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, and details are not repeated here.

[0211] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the embodiments of the present application and each other can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0212] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0213] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0214] The functions, if implemented in the form of software function units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application, essentially or in part, or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods according to the embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, and various other media that can store program codes.

[0215] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent substitutions can be made to the components thereof. In particular, each of the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A control method of an energy storage device, characterized by, The energy storage device is used to move between the micro-grid side and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side, part of the energy storage device is located on the micro-grid side and part of the energy storage device is located on the charging side, and the control method comprises: obtaining first state parameters and second state parameters, the first state parameters including power supply parameters of the energy storage device on the micro-grid side, and parameters of power consumption demand of the micro-grid, and the second state parameters including parameters of whether the charging side is in a peak period or a valley period; in the case that the charging side is in the valley period, controlling N energy storage devices with the lowest electric quantity on the micro-grid side to be in the discharging mode to release electric energy to the micro-grid, the SOC of the N energy storage devices in the discharging mode being greater than or equal to a first preset SOC value, so that the power supply parameters of the N energy storage devices in the discharging mode always meet the power consumption demand of the micro-grid, and the first preset SOC value is greater than the SOC corresponding to the discharging cut-off condition of the energy storage device; and allowing the energy storage device on the charging side to obtain electric energy from the charging side; the control method further comprises: in the case that there is at least one energy storage device needing charging on the micro-grid side, moving the at least one energy storage device needing charging on the micro-grid side from the micro-grid to the charging side, wherein the SOC of the energy storage device needing charging is less than the first preset SOC value, the energy storage device is detachably connected with a traction device, and the number of the energy storage devices between the micro-grid and the charging side is greater than the number of the traction devices.

2. The control method according to claim 1, characterized by, in the case that the charging side is in the peak period, the energy storage device on the charging side is not allowed to obtain electric energy from the charging side.

3. The control method according to claim 1, characterized by, in the case that the charging side is in the valley period, allowing at least one energy storage device on the charging side to obtain electric energy from the charging side, comprising: in the case that the charging side is in the valley period and there is at least one energy storage device on the charging side which has not completed charging, controlling the at least one energy storage device on the charging side which has not completed charging to obtain electric energy from the charging side, and the second state parameters further include information of whether the energy storage device on the charging side has completed charging.

4. The control method according to claim 3, characterized by, the control method further comprises: in the case that the charging side is in the valley period and there is at least one energy storage device on the charging side which has completed charging, moving the at least one energy storage device on the charging side which has completed charging from the charging side to the micro-grid.

5. The control method according to claim 4, characterized by the moving of the at least one energy storage device on the charging side which has completed charging from the charging side to the micro-grid comprises: using at least one traction device to transport the at least one energy storage device on the charging side which has completed charging from the charging side to the micro-grid.

6. The control method according to claim 5, characterized by the moving of the at least one energy storage device on the micro-grid side needing charging from the micro-grid to the charging side comprises: using at least one traction device to transport the at least one energy storage device on the micro-grid side needing charging from the micro-grid to the charging side.

7. The control method according to claim 5, characterized by, The transporting of the at least one energy storage device completed charging at the charging side from the charging side to the micro-grid by the at least one traction device includes: sending first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one energy storage device completed charging at the charging side from the charging side to the micro-grid.

8. The control method according to claim 6, characterized by, The transporting of the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side by the at least one traction device includes: sending second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one energy storage device needing charging at the micro-grid from the micro-grid to the charging side.

9. The control method according to claim 1, characterized by, The energy storage device releases electric energy to the micro-grid through a first power module connected between the energy storage device and the micro-grid, and obtains electric energy from the charging side through a second power module connected between the energy storage device and the charging side.

10. A control device for an energy storage device, characterized by The energy storage device is used to move between the micro-grid and the charging side to release electric energy to the micro-grid and obtain electric energy from the charging side, part of the energy storage devices are located at the micro-grid side and part of the energy storage devices are located at the charging side, and the control device includes: an obtaining unit, configured to obtain first state parameters and second state parameters, the first state parameters including power supply parameters of the energy storage devices at the micro-grid side and parameters of power consumption demand of the micro-grid, and the second state parameters including parameters of whether the charging side is in a peak period or a valley period; a control unit, configured to, in a case where the charging side is in the valley period, control N energy storage devices with the lowest electric quantity at the micro-grid side to be in a discharging mode to release electric energy to the micro-grid, the N energy storage devices in the discharging mode having a SOC greater than or equal to a first preset SOC value, so that the power supply parameters of the N energy storage devices in the discharging mode always meet the power consumption demand of the micro-grid, and the first preset SOC value being greater than a SOC corresponding to a discharging cutoff condition of the energy storage device; allowing the energy storage devices at the charging side to obtain electric energy from the charging side; and in a case where there is at least one energy storage device needing charging at the micro-grid side, moving the at least one energy storage device needing charging at the micro-grid side from the micro-grid to the charging side, wherein the SOC of the energy storage device needing charging is less than the first preset SOC value, the energy storage device is detachably connected with a traction device, and the number of the energy storage devices between the micro-grid and the charging side is greater than the number of the traction devices.

11. The control device of claim 10, wherein The control unit is further configured to, in a case where the charging side is in the peak period, not allow the energy storage devices at the charging side to obtain electric energy from the charging side. In a case where the charging side is in the peak period, not allowing at least one energy storage device at the charging side to obtain electric energy from the charging side.

12. The control device according to claim 10, wherein The control unit is specifically configured to control the at least one storage device of the charging side that has not completed charging to obtain electric energy from the charging side when the charging side is in a valley period and there is at least one storage device of the charging side that has not completed charging, and the second state parameter further includes information about whether the storage device of the charging side has completed charging.

13. The control device according to claim 12, characterized in that, The control unit is further configured to move the at least one storage device of the charging side that has completed charging from the charging side to the microgrid when the charging side is in a valley period and there is at least one storage device of the charging side that has completed charging.

14. The control device according to claim 13, characterized in that, The control unit is specifically configured to transport the at least one storage device of the charging side that has completed charging from the charging side to the microgrid by using at least one traction device.

15. The control device according to claim 10, characterized in that, The control unit is specifically configured to transport the at least one storage device of the microgrid side that needs to be charged from the microgrid to the charging side by using at least one traction device.

16. The control device according to claim 10, characterized in that, The control unit is specifically configured to send first indication information to the at least one traction device, the first indication information being used to instruct the traction device to transport the at least one storage device of the charging side that has completed charging from the charging side to the microgrid.

17. The control device according to claim 10, characterized in that, The control unit is specifically configured to send second indication information to the at least one traction device, the second indication information being used to instruct the traction device to transport the at least one storage device of the microgrid side that needs to be charged from the microgrid to the charging side.

18. The control device of claim 10, wherein, The storage device releases electric energy to the microgrid through a first power module connected between the storage device and the microgrid, and obtains electric energy from the charging side through a second power module connected between the storage device and the charging side.

19. A control device for an energy storage device, characterized by The control device includes a memory and a processor, the memory is used to store instructions, and the processor is used to read the instructions and execute the control method according to any one of claims 1 to 9.

20. A cloud server, characterized by The cloud server includes the control device according to any one of claims 10 to 19.

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