Energy storage battery aging control method, system and electronic equipment

Abstract

The embodiment of the present invention discloses a method, system and electronic device for controlling the aging of an energy storage battery. The method includes: allocating a number of aging modules into a number of aging devices and a number of energy storage devices; obtaining a number of first target powers according to a first parameter of the aging devices; obtaining and recording a first total power according to the number of first target powers; obtaining a second total power according to the first total power; obtaining a number of second target powers according to a second parameter and a second total power of the energy storage devices; sending a number of first target powers to corresponding aging devices, and sending a number of second target powers to corresponding energy storage devices. The present invention allocates aging modules into aging devices and energy storage devices, so that the energy storage devices release energy when the aging devices are charged; and absorb energy when the aging devices are discharged, so as to achieve the purpose of not feeding power to the power grid, thereby reducing the aging cost and energy waste of energy storage batteries.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of energy storage battery aging, and in particular to an energy storage battery aging control method, system and electronic equipment. Background Art

[0002] The maintenance / aging of batteries (including energy storage batteries and power batteries) is mainly due to the impact of long-term storage in warehouses on battery performance. If the specified maintenance / aging operations are not performed, the battery performance and warranty period will be affected. For the aging charge and discharge of energy storage batteries, the grid is often used as the AC source for charge and discharge cycles. Faced with large-scale energy storage battery aging tasks, it will be a huge cost if all energy is provided by the grid.

[0003] At present, the common solution to this problem is to use professional loads as absorption equipment during the aging and discharge of energy storage batteries. First of all, the aging task of the energy storage battery itself requires a certain amount of expenditure. The additional selection and purchase of professional loads and the construction of the platform will undoubtedly increase the cost of the aging task. Secondly, during the aging process of the energy storage battery, when its discharge action switches to charging, the professional load will not be actively controlled to shut down, but will continue to consume energy on the power supply side, reducing the power supply side's ability to charge the aging energy storage battery. Moreover, the operation of professional loads requires power support, and the process of absorbing battery discharge energy is essentially achieved by consuming the power resources of the aging site, which causes serious waste of resources. Summary of the invention

[0004] The main technical problem solved by the embodiments of the present invention is to provide a method, system and electronic device for controlling aging of an energy storage battery, which can avoid the increase of the overhead cost of the aging task and the serious waste of resources.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present invention is: providing an energy storage battery aging control method, comprising: allocating a number of aging modules in an energy storage battery aging system into a number of aging devices and a number of energy storage devices; the aging modules include energy storage batteries and inverters; obtaining a number of first target powers according to first parameters of the number of aging devices; obtaining and recording a first total power according to the number of first target powers; the first total power is the sum of the first target powers of the number of aging devices; obtaining a second total power according to the first total power; obtaining a number of second target powers according to the second parameters of the number of energy storage devices and the second total power; the second total power is the sum of the second target powers of the number of energy storage devices; sending the number of first target powers to corresponding aging devices, and sending the number of second target powers to corresponding energy storage devices.

[0006] In some embodiments, if the second total power is the charging power, the second parameter includes the remaining battery power and the maximum charging power, and the obtaining of the plurality of second target powers according to the second parameters of the plurality of energy storage devices and the second total power includes: allocating the plurality of energy storage devices into a plurality of first balancing devices and a plurality of first unbalanced devices according to the minimum value of the remaining battery power of the plurality of energy storage devices; when the second total power does not exceed the sum of the maximum charging powers of the plurality of first balancing devices, obtaining the corresponding second target power according to the second total power and the number of first balancing devices; when the second total power exceeds the sum of the maximum charging powers of the plurality of first balancing devices, determining whether the excess power is greater than the sum of the maximum charging powers of the plurality of first unbalanced devices; if not, obtaining the second target power of the corresponding first balancing device according to the maximum charging power of the plurality of first balancing devices, and obtaining the second target power of the corresponding first unbalanced device according to the excess power and the number of first unbalanced devices; if yes, adjusting the first target power of the plurality of aging devices to a value that the excess power is not greater than the sum of the maximum charging powers of the plurality of first unbalanced devices.

[0007] In some embodiments, if the second total power is a discharge power, the second parameter includes a remaining battery power and a maximum discharge power, and obtaining the plurality of second target powers according to the second parameters of the plurality of energy storage devices and the second total power includes: allocating the plurality of energy storage devices into a plurality of second balancing devices and a plurality of second unbalanced devices according to the maximum value of the remaining battery power of the plurality of energy storage devices; when the second total power does not exceed the sum of the maximum discharge powers of the plurality of second balancing devices, obtaining the corresponding second target power according to the second total power and the number of second balancing devices; when the second total power exceeds the sum of the maximum discharge powers of the plurality of second balancing devices, determining whether the excess power is greater than the sum of the maximum discharge powers of the plurality of second unbalanced devices; if not, obtaining the second target power of the corresponding second balancing device according to the maximum discharge power of the plurality of second balancing devices, and obtaining the second target power of the corresponding second unbalanced device according to the excess power and the number of second unbalanced devices; if yes, obtaining the corresponding second target power according to the maximum discharge power of the plurality of second balancing devices and the maximum discharge power of the plurality of second unbalanced devices.

[0008] In some embodiments, after sending the several first target powers to the corresponding aging devices and sending the several second target powers to the corresponding energy storage devices, it also includes: judging whether power reversal occurs compared with the first total power at the last recorded moment; if the first total power is switched from charging power to discharging power, sending a standby instruction to all aging modules to control all aging modules to enter a standby state; sending a first start instruction to all energy storage devices to enable all energy storage devices to charge according to the corresponding second target power; sending several second start instructions to several aging devices to be charged to enable the several aging devices to be charged to charge according to the corresponding first target power; the first target power of the aging devices to be charged is the charging power; sending several third start instructions to several aging devices to be discharged to enable the several aging devices to be discharged to discharge according to the corresponding first target power; the first target power of the aging devices to be discharged is the discharging power.

[0009] In some embodiments, if the first total power is switched from discharging power to charging power, a standby instruction is sent to all aging modules to control all aging modules to enter a standby state; a plurality of second start instructions are sent to a plurality of aging devices to be charged, so that the plurality of aging devices to be charged are charged according to the corresponding first target power; the first target power of the aging devices to be charged is the charging power; a plurality of third start instructions are sent to a plurality of aging devices to be discharged, so that the plurality of aging devices to be discharged are discharged according to the corresponding first target power; the first target power of the aging devices to be discharged is the discharging power; the first start instruction is sent to all energy storage devices, so that all energy storage devices are discharged according to the corresponding second target power.

[0010] In some embodiments, obtaining the second total power based on the first total power includes: if the first total power is discharge power, obtaining the second total power based on the first total power and a first preset coefficient, and the first preset coefficient is greater than 1; if the first total power is charging power, obtaining the second total power based on the first total power and a second preset coefficient, and the second preset coefficient is less than 1.

[0011] In some embodiments, after sending the several first target powers to the corresponding aging devices and sending the several second target powers to the corresponding energy storage devices, it also includes: obtaining the total grid current; judging whether the sum of the first total power and the second total power is greater than a preset power threshold; if so, judging whether the total grid current is greater than a preset current threshold; if so, judging whether the first total power is charging power or discharging power; if the first total power is charging power, increasing the first preset coefficient; if the first total power is discharging power, reducing the second preset coefficient; and obtaining the second total power again based on the first total power.

[0012] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present invention is: to provide an electronic device, comprising: at least one processor; at least one network interface, which is communicatively connected to the corresponding processor; and a memory which is communicatively connected to the at least one processor; wherein the network interface is used to establish a communication connection between the processor and other external devices; the memory stores instructions which can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the energy storage battery aging control method as described above.

[0013] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present invention is: providing a non-volatile computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are executed by one or more processors, so that one or more processors can execute the energy storage battery aging control method as described above.

[0014] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present invention is: to provide an energy storage battery aging system, comprising: a power grid; a plurality of aging modules; the aging modules include energy storage batteries and inverter devices; the AC output sides of the plurality of aging modules are connected to the power grid; and the electronic equipment as described above.

[0015] The beneficial effects of the embodiments of the present invention are as follows: Different from the prior art, the embodiments of the present invention allocate the aging modules into aging devices and energy storage devices, so that the energy storage devices release energy when the aging devices are charged; and absorb energy when the aging devices are discharged, so that the energy flows between the aging modules to achieve the purpose of not feeding power to the power grid, thereby reducing the aging cost of the energy storage battery and energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an energy storage battery aging system provided by an embodiment of the present invention;

[0017] Figure 2 It is a flow chart of a method for controlling aging of an energy storage battery provided in an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 A schematic flow chart of step S400 in the energy storage battery aging control method shown;

[0019] Figure 4 yes Figure 2 A schematic diagram of a sub-process of step S500 in the energy storage battery aging control method shown;

[0020] Figure 5 yes Figure 2 Another sub-process diagram of step S500 in the energy storage battery aging control method shown;

[0021] Figure 6 It is a flow chart of a second energy storage battery aging control method provided in an embodiment of the present invention;

[0022] Figure 7 It is a flow chart of a third energy storage battery aging control method provided in an embodiment of the present invention;

[0023] Figure 8 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom" and the like used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0027] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0028] In order to solve the problem of energy storage battery energy destination and strictly prevent energy from being fed to the power grid, this application proposes an aging solution for energy storage battery aging system that prevents power from being fed to the power grid. In this solution, the structural diagram of the energy storage battery aging system is as follows: Figure 1 shown.

[0029] The following are the definitions of abbreviations and key terms involved in the present invention:

[0030] Aging: refers to deep charging and discharging of energy storage batteries to help activate the internal chemical substances of the battery and restore it to its optimal working state, thereby achieving the purpose of extending the battery life;

[0031] Aging module: a combination of inverter module and energy storage battery;

[0032] Target power: The power (divided into charging and discharging) that the centralized control center sends to the aging module that is expected to be achieved or maintained;

[0033] Inverter power: The power used by the inverter module to convert DC power to AC power. It can be understood as the power used to charge / discharge the battery through the inverter module (negative values ​​are charging and positive values ​​are discharging).

[0034] Specifically, the L and N lines of all the inverter modules in the energy storage battery aging system are connected to the L and N lines on the grid side respectively (the connection method here is related to the specifications of the inverter module and is compatible with the connection methods of three-phase, two-phase and single-phase inverter modules), which is equivalent to connecting the live wires and neutral wires of all the inverter modules in parallel according to the phase sequence, and the dry contact is the output end on the grid side.

[0035] It should be noted that this solution must ensure that all inverter modules have the same specifications, for example, all are three-phase inverters, or all are two-phase inverters, or all are single-phase inverters.

[0036] The communication lines 1 of all inverter modules are connected in parallel and then connected to the fixed communication port of the centralized control center 10. The centralized control center 10 and the human-machine interface (HMI) 20 are wired accordingly, and the communication lines 2 of the inverter modules and the energy storage battery are wired accordingly. The current object sampled and processed by the current sensor of the centralized control center 10 is the current on the grid side, so the current sensor CT interface is connected to each phase live wire of the power supply side 30 respectively.

[0037] In the embodiment of the present application, the centralized control center 10 serves as an aging control center, and obtains information and issues instructions of the energy storage battery aging system through communication, specifically including: obtaining sampling information of the current sensor, such as the grid current of each phase; obtaining basic information of the energy storage battery, such as the battery state of charge (State of Charge, SOC), maximum allowable charging current, maximum allowable discharge current, and battery voltage; obtaining basic information of the inverter module, such as charging inverter power and discharging inverter power; issuing instructions to the aging module, such as the aging start-stop switch, inverter charging target power, and inverter discharging target power (the content of the information obtained and the content of the instructions issued by the communication can be increased or decreased according to actual needs).

[0038] The user uses HMI 20 to let the centralized control center 10 execute the aging requirements. The centralized control center 10 controls the charging and discharging actions of each energy storage battery. The specific control means are: 1) Sending the "aging start and stop switch" to turn on / off the inverter module; 2) Sending the "inverter charging target power" to set the charging power of the energy storage battery; 3) Sending the "inverter discharge target power" to set the discharge power of the energy storage battery; 4) The centralized control center automatically feeds back the content of the issued instructions based on the basic information obtained to form a closed-loop control.

[0039] Based on the energy storage battery aging system provided in the above embodiment, the embodiment of the present invention provides an energy storage battery aging control method, which is executed by the centralized control center in the above energy storage battery aging system, and its flow chart is as follows: Figure 2 As shown, the specific steps include:

[0040] Step S100: allocating a plurality of aging modules in the energy storage battery aging system into a plurality of aging devices and a plurality of energy storage devices.

[0041] According to the above hardware equipment wiring method, assuming that only aging module A charges 6000W and aging module B discharges 5000W at the same time in the system, then for the system, 1000W of electricity is taken from the grid at this time. Therefore, this wiring method is the premise for achieving the system not to discharge to the grid.

[0042] According to the aging instructions sent by the HMI, the centralized control center allocates part of all aging modules as aging devices, and the remaining aging modules as energy storage devices. Aging devices are the objects of aging instructions, and energy storage devices are the objects of energy storage battery aging control methods. Specifically, when the overall state of all aging devices is charging, the energy storage devices will discharge for use by the aging devices; when the overall state of all aging devices is discharging, the energy storage devices will charge to absorb the energy of the aging devices.

[0043] Step S200: obtaining a plurality of first target powers according to first parameters of a plurality of aging devices.

[0044] In the embodiment of the present application, the first parameter includes the battery voltage, maximum charging current and maximum discharging current of the energy storage battery. The specific implementation method is that the centralized control center obtains the battery voltage, maximum charging current and maximum discharging current of the energy storage battery, and strictly determines the inverter charging target power and the inverter discharging target power according to the charging and discharging limit allowed by the energy storage battery. Assume that the inverter charging target power is P A (According to the definition P A The value of ≤ 0), the inverter discharge target power is P B (this value ≥ 0), the inverter target power P of a single aging module can be obtained C The expression is:

[0045] P C =P A + P B ,

[0046] From the above formula, we can see that PC>0 means the inverter target power is the discharge power, P C <0 means the inverter target power is charging power, P C =0 means no charge or discharge (for a single energy storage device, P A and P B You can only choose one of the two, P A and P B The settings are mutually exclusive, at least one of them must be 0).

[0047] For example, for a battery with SOC = 50%, it can be charged and discharged. A and P B There are two options for setting. If it is set to charge at 1000W, then P A = -1000W, P B =0; if discharge is set, then P A =0,P B =1000W.

[0048] Step S300: obtaining and recording a first total power according to a plurality of first target powers.

[0049] As an example but not a limitation, there are n aging devices, and the inverter charging target power of each aging device is P A1 , P A2 , ..., P An , the inverter discharge target power is P B1 , P B2 , ..., P Bn , by P C The expression can be obtained that the inverter target power of the n aging devices is P C1 , P C2 , ..., P Cn . Obtain the target inverter power of all aging devices, that is, the first total power P aim for:

[0050] ,

[0051] From the above formula, we can see that P aim The value of represents the size of the inverter target power of all aging equipment, P aim The positive and negative signs of indicate the overall charge / discharge status of all aging devices.

[0052] Step S400: obtaining a second total power according to the first total power.

[0053] Specifically, the second total power of the energy storage device is calculated based on the first total power of the aging device. As an example but not a limitation, when the first total power is the discharge power, the second total power is the charging power, and the second total power is greater than the first total power, so as to ensure that the charging power of the energy storage device is greater than the discharge power of the aging device, thereby realizing that the entire system does not discharge to the power grid; when the first total power is the charging power, the second total power is the discharge power, and the second total power is less than the first total power, so as to ensure that the discharge power of the energy storage device is less than the charging power of the aging device, thereby realizing that the entire system does not discharge to the power grid;

[0054] Step S500: obtaining a plurality of second target powers according to the second parameters and the second total power of a plurality of energy storage devices.

[0055] From the above, it can be seen that the sum of the inverter charging target power or the sum of the inverter discharging target power of all energy storage devices in the aging process has been calculated. Then how to allocate the second total power to the energy storage devices specifically involves the difference in the SOC values ​​between the energy storage devices.

[0056] In the embodiment of the present application, the power allocation for energy storage devices follows the following principle: devices with low power are charged first, and devices with high power are discharged first. That is, when the second total power is charging power, according to the SOC value of each energy storage device, energy storage devices with low SOC values ​​are allocated according to the maximum charging limit; when the second total power is discharging power, according to the SOC value of each energy storage device, energy storage devices with high SOC values ​​are allocated according to the maximum discharging limit.

[0057] Step S600: sending a plurality of first target powers to corresponding aging devices, and sending a plurality of second target powers to corresponding energy storage devices.

[0058] After the power allocation is completed, the centralized control center sends several first target powers in the form of inverter charging target power instructions or inverter discharging target power instructions to the corresponding aging equipment; and sends several second target powers in the form of inverter discharging target power instructions or inverter charging target power instructions to the corresponding energy storage equipment.

[0059] In the embodiment of the present application, the flowchart of step S400 is as follows: Figure 3 As shown, the specific steps include:

[0060] Step S410: determining whether the first total power is charging power or discharging power.

[0061] Specifically, according to the first total power P aim The sign of the first total power P aim is the charging power or discharging power, if the first total power P aim is the discharge power, then execute step S420; if the first total power P aim is the charging power, then execute step S430. aim Afterwards, the centralized control center can calculate the sum of the inverter charging target powers of all energy storage devices, or the sum of the inverter discharging target discharge powers, that is, the second total power.

[0062] Step S420: Obtain a second total power according to the first total power and a first preset coefficient, where the first preset coefficient is greater than 1.

[0063] If P aim is a positive value, that is, the first total power P of the aging equipment at this time aim is the discharge power, and the corresponding control center calculates the sum of the inverter charging target powers of the energy storage equipment, that is, the second total power P 1 for:

[0064] P 1 =(-P aim )×K 1 ,

[0065] K 1 The coefficient is greater than 1, ensuring that the charging power of the energy storage equipment is greater than the discharging power of the aging equipment, so that the entire system does not discharge to the grid.

[0066] Step S430: Obtain a second total power according to the first total power and a second preset coefficient, where the second preset coefficient is less than 1.

[0067] If P aim is a negative value, that is, the first total power P of the aging equipment at this time aim is the charging power, and the corresponding control center calculates the sum of the inverter discharge target powers of the energy storage equipment, that is, the second total power P 1 for:

[0068] P 1 =(-P aim )×K 2 ,

[0069] K 1 The coefficient is less than 1, which ensures that the discharge power of the energy storage equipment is less than the charging power of the aging equipment, so that the entire system does not discharge to the grid.

[0070] In the embodiment of the present application, when the first total power is the discharge power, the flow chart of step S500 is as follows: Figure 4 As shown, the specific steps include:

[0071] Step S511: the second total power is the charging power, and the energy storage devices are allocated into a plurality of first balancing devices and a plurality of first non-balancing devices according to the minimum value of the remaining battery power (such as the battery state of charge, SOC value) of the plurality of energy storage devices.

[0072] First, the SOC values ​​of energy storage devices may be different, so the SOC values ​​of each energy storage device are sorted in order from small to large. As an example but not a limitation, the standard of balance is set to 5%. Assume that there are 4 energy storage devices, numbered 1, 2, 3, and 4, and their SOC values ​​are:

[0073] SOC of energy storage device 1 1 =30%, SOC of energy storage device 2 2 =33%, SOC of energy storage device 3 3 =37%, SOC of energy storage device 4 4 =40%. Since the second total power is the charging power, the device with the smallest SOC value is used as the standard. If the difference between the SOC value and the device is within 5%, it is the balanced device. Therefore, the balanced relationship of the four devices is: balanced device number: 1, 2; non-balanced device number: 3, 4.

[0074] Step S512: determining whether the second total power exceeds the sum of the maximum charging powers of the plurality of first balancing devices.

[0075] If the second total power does not exceed the sum of the maximum charging powers of the plurality of first balancing devices, step S513 is executed; if the second total power exceeds the sum of the maximum charging powers of the plurality of first balancing devices, step S514 is executed.

[0076] Step S513: Obtain a corresponding second target power according to the second total power and the number of first balancing devices.

[0077] Specifically, the second total power is evenly distributed to each first balancing device, provided that the second target power of each first balancing device does not exceed its maximum allowed charging power, for example:

[0078] If the second total power P 1 =-8000W, and the maximum charging power allowed by each aging module is 6000W, then:

[0079] Charging power P of energy storage device 1 A1 =-4000W, charging power P of energy storage device 2 A2 =-4000W, charging power P of energy storage device 3 A3 =0W, charging power P of energy storage device 4 A4 =0W.

[0080] Step S514: determining whether the excess power is greater than the sum of the maximum charging powers of a plurality of first non-balanced devices.

[0081] If the excess power is not greater than the sum of the maximum charging powers of the first non-balanced devices, step S515 is executed; if the excess power is greater than the sum of the maximum charging powers of the first non-balanced devices, step S516 is executed.

[0082] Step S515: obtaining the second target power of the corresponding first balancing device according to the maximum charging power of the plurality of first balancing devices, and obtaining the second target power of the corresponding first non-balancing device according to the excess power and the number of the first non-balancing devices.

[0083] That is, the maximum charging power of several first balancing devices is used as the second target power of the corresponding first balancing device, and the excess power is evenly distributed to each first non-balancing device, for example:

[0084] If the second total power P 1 =-14000W, and the maximum charging power allowed by each aging module is 6000W, then the excess power is -2000W:

[0085] Charging power P of energy storage device 1 A1 =-6000W, charging power P of energy storage device 2 A2 =-6000W, charging power P of energy storage device 3 A3 =-1000W, charging power P of energy storage device 4 A4 =-1000W.

[0086] Step S516: adjusting the first target powers of the plurality of aging devices to an excess power no greater than the sum of the maximum charging powers of the plurality of first non-balanced devices.

[0087] Taking the maximum charging power allowed by each aging module as 6000W as an example, if the second total power P 1 <-24000W, that is, the excess power is greater than the sum of the maximum charging powers of several first non-balanced devices. In this case, it is necessary to limit the power of the aging devices and adjust the feedback until P 1 ≥-24000W redistribution. Because if there is no feedback adjustment, the actual discharge power of the aging equipment is greater than the charging power of the energy storage equipment, and the energy storage battery aging system will feed power to the grid as a whole.

[0088] In the embodiment of the present application, when the first total power is the charging power, the flow chart of step S500 is as follows: Figure 5 As shown, the specific steps include:

[0089] Step S521: the second total power is the discharge power, and the energy storage devices are allocated into a plurality of second balancing devices and a plurality of second non-balancing devices according to the maximum value of the remaining battery power (such as SOC value) of the plurality of energy storage devices.

[0090] Similarly, the SOC values ​​of the energy storage devices are sorted in order from small to large. As an example but not a limitation, the balance standard is set to 5%. Assume that there are 4 energy storage devices, numbered 1, 2, 3, and 4, and their SOC values ​​are:

[0091] SOC of energy storage device 1 1 =30%, SOC of energy storage device 2 2 =33%, SOC of energy storage device 3 3 =37%, SOC of energy storage device 4 4 =40%. Since the second total power is the discharge power, the device with the largest SOC is used as the standard. If the difference between the SOC value and the device is within 5%, it is a balanced device. Therefore, the balanced relationship of the four devices is: balanced device number: 3, 4; non-balanced device number: 1, 2.

[0092] Step S522: determine whether the second total power exceeds the sum of the maximum discharge powers of the plurality of second balancing devices.

[0093] If the second total power does not exceed the sum of the maximum discharge powers of the plurality of second balancing devices, step S523 is executed; if the second total power exceeds the sum of the maximum discharge powers of the plurality of second balancing devices, step S524 is executed.

[0094] Step S523: Obtain a corresponding second target power according to the second total power and the number of second balancing devices.

[0095] Specifically, the second total power is evenly distributed to each second balancing device, provided that the second target power of each second balancing device does not exceed its maximum allowable discharge power, for example:

[0096] If the second total power P 1 =8000W, and the maximum discharge power allowed by each aging module is 6000W, then:

[0097] Charging power P of energy storage device 1 A1 =0W, charging power P of energy storage device 2 A2 =0W, charging power P of energy storage device 3 A3 =4000W, charging power P of energy storage device 4 A4 =4000W.

[0098] Step S524: determine whether the excess power is greater than the sum of the maximum discharge powers of a plurality of second unbalanced devices.

[0099] If the excess power is not greater than the sum of the maximum discharge powers of the plurality of second unbalanced devices, step S525 is executed; if the excess power is greater than the sum of the maximum discharge powers of the plurality of second unbalanced devices, step S526 is executed.

[0100] Step S525: obtaining the second target power of the corresponding first balancing device according to the maximum discharge power of the plurality of second balancing devices, and obtaining the second target power of the corresponding second unbalanced device according to the excess power and the number of the second unbalanced devices.

[0101] That is, the maximum discharge power of several second balancing devices is used as the second target power of the corresponding second balancing device, and the excess power is evenly distributed to each second non-balancing device, for example:

[0102] If the second total power P 1 =14000W, and the maximum discharge power allowed by each aging module is 6000W, then the excess power is 2000W:

[0103] Charging power P of energy storage device 1A1 =1000W, charging power P of energy storage device 2 A2 =1000W, charging power P of energy storage device 3 A3 =6000W, charging power P of energy storage device 4 A4 =6000W.

[0104] Step S526: Obtain corresponding second target powers according to the maximum discharge powers of the plurality of second balancing devices and the maximum discharge powers of the plurality of second non-balancing devices.

[0105] Taking the maximum discharge power allowed by each aging module as 6000W as an example, if the second total power P 1 >24000W, that is, the excess power is greater than the sum of the maximum charging powers of the plurality of second non-balanced devices. The maximum discharge powers of the plurality of second balancing devices are used as the second target powers of the corresponding plurality of second balancing devices, and the maximum discharge powers of the plurality of second non-balanced devices are used as the second target powers of the corresponding plurality of second non-balanced devices. That is, in the second total power P 1 When the total maximum charging power of the plurality of second non-balanced devices exceeds the total maximum charging power of the plurality of second balanced devices and the total maximum discharging power of the plurality of second balanced devices, the second total power P 1 =24000W, which also meets the requirement that the charging power of aging equipment is greater than the discharging power of energy storage equipment, and the system as a whole draws power from the grid.

[0106] According to the above allocation method, as the aging of energy storage devices with incompletely balanced SOC continues, all devices will eventually tend to be balanced, and the charging / discharging power will also be evenly distributed.

[0107] Different from the prior art, the embodiment of the present invention distributes the aging module into aging equipment and energy storage equipment, so that the energy storage equipment releases energy when the aging equipment is charged; and absorbs energy when the aging equipment is discharged, so as to achieve the effect of energy internal circulation of the energy storage battery aging system, which not only meets the requirement of not feeding power to the power grid, but also improves the utilization rate of resources and greatly saves the cost of purchasing electricity from the power grid. Moreover, as an energy storage device, the energy storage battery also goes through the process of emptying, filling and emptying after a long period of operation, which meets the aging requirements in disguise.

[0108] Furthermore, during the aging process, the full and emptying of the energy storage battery is a relatively long process. During this process, the inverter charging target power P issued by the centralized control center is A and inverter discharge target power P B Will not change easily, that is, the first total power P aim Power reversal will not occur easily. But the first total power P aimOnce power reversal occurs, it may cause the energy storage battery aging system to discharge to the grid. Figure 2 Based on the energy storage battery aging control method shown in FIG, another energy storage battery aging control method is proposed, and its flow chart is as follows Figure 6 As shown, the method specifically comprises the following steps:

[0109] Step S100: allocating a plurality of aging modules in the energy storage battery aging system into a plurality of aging devices and a plurality of energy storage devices.

[0110] According to the aging instructions sent by the HMI, the centralized control center allocates part of all aging modules as aging devices, and the remaining aging modules as energy storage devices. Aging devices are the objects of aging instructions, and energy storage devices are the objects of energy storage battery aging control methods. Specifically, when the overall state of all aging devices is charging, the energy storage devices will discharge for use by the aging devices; when the overall state of all aging devices is discharging, the energy storage devices will charge to absorb the energy of the aging devices.

[0111] Step S200: obtaining a plurality of first target powers according to first parameters of a plurality of aging devices.

[0112] In the embodiment of the present application, the first parameter includes the battery voltage, maximum charging current and maximum discharging current of the energy storage battery. The specific implementation method is that the centralized control center obtains the battery voltage, maximum charging current and maximum discharging current of the energy storage battery, and strictly determines the inverter charging target power and the inverter discharging target power according to the charging and discharging limit allowed by the energy storage battery. Assume that the inverter charging target power is P A (According to the definition P A The value of ≤ 0), the inverter discharge target power is P B (this value ≥ 0), the inverter target power P of a single aging module can be obtained C The expression is:

[0113] P C =P A + P B ,

[0114] From the above formula, we can see that PC>0 means the inverter target power is the discharge power, P C <0 means the inverter target power is charging power, P C =0 means no charge or discharge (for a single energy storage device, P A and P B You can only choose one of the two, P A and P B The settings are mutually exclusive, at least one of them must be 0).

[0115] For example, for a battery with SOC = 50%, it can be charged and discharged. A and P B There are two options for setting. If it is set to charge at 1000W, then P A = -1000W, P B =0; if discharge is set, then P A =0,P B =1000W.

[0116] Step S300: obtaining and recording a first total power according to a plurality of first target powers.

[0117] As an example but not a limitation, there are n aging devices, and the inverter charging target power of each aging device is P A1 , P A2 , ..., P An , the inverter discharge target power is P B1 , P B2 , ..., P Bn , by P C The expression can be obtained that the inverter target power of the n aging devices is P C1 , P C2 , ..., P Cn . Obtain the target inverter power of all aging devices, that is, the first total power P aim for:

[0118] ,

[0119] From the above formula, we can see that P aim The value of represents the size of the inverter target power of all aging equipment, P aim The positive and negative signs of indicate the overall charge / discharge status of all aging devices.

[0120] Step S400: obtaining a second total power according to the first total power.

[0121] Specifically, the second total power of the energy storage device is calculated based on the first total power of the aging device. As an example but not a limitation, when the first total power is the discharge power, the second total power is the charging power, and the second total power is greater than the first total power, so as to ensure that the charging power of the energy storage device is greater than the discharge power of the aging device, thereby realizing that the entire system does not discharge to the power grid; when the first total power is the charging power, the second total power is the discharge power, and the second total power is less than the first total power, so as to ensure that the discharge power of the energy storage device is less than the charging power of the aging device, thereby realizing that the entire system does not discharge to the power grid;

[0122] Step S500: obtaining a plurality of second target powers according to the second parameters and the second total power of a plurality of energy storage devices.

[0123] From the above, it can be seen that the sum of the inverter charging target power or the sum of the inverter discharging target power of all energy storage devices in the aging process has been calculated. Then how to allocate the second total power to the energy storage devices specifically involves the difference in the SOC values ​​between the energy storage devices.

[0124] In the embodiment of the present application, the power allocation for energy storage devices follows the following principle: devices with low power are charged first, and devices with high power are discharged first. That is, when the second total power is charging power, according to the SOC value of each energy storage device, energy storage devices with low SOC values ​​are allocated according to the maximum charging limit; when the second total power is discharging power, according to the SOC value of each energy storage device, energy storage devices with high SOC values ​​are allocated according to the maximum discharging limit.

[0125] Step S600: sending a plurality of first target powers to corresponding aging devices, and sending a plurality of second target powers to corresponding energy storage devices.

[0126] After the power distribution is completed, the centralized control center sends a number of first target powers in the form of inverter charging target power instructions or inverter discharging target power instructions to the corresponding aging equipment; and sends a number of second target powers in the form of inverter discharging target power instructions or inverter charging target power instructions to the corresponding energy storage equipment. Step S710: Determine whether power reversal occurs when the first total power is compared with the first total power at the last recorded moment.

[0127] Power reversal refers to the phenomenon that the sign of the first total power changes. Specifically:

[0128] When the first total power changes from a negative value to a positive value, it indicates that the overall state of the aging device changes from charging to discharging, which is called power reversal from charging power to discharging power; when the first total power changes from a positive value to a negative value, it indicates that the overall state of the aging device changes from discharging to charging, which is called power reversal from discharging power to charging power.

[0129] Power reversal usually occurs when the aging device completes the charging or discharging process. For example, when the aging device completes charging and reaches a preset power level, it needs to be discharged, or when the aging device completes discharging and reaches a preset power level, it needs to be charged. Since the power reversal process involves the state switching of multiple aging modules, improper control may cause the energy storage battery aging system to feed power to the grid, so a special control strategy is required.

[0130] If the first total power is switched from charging power to discharging power compared with the first total power at the last recording moment, step S721 is executed; if the first total power is switched from discharging power to charging power compared with the first total power at the last recording moment, step S731 is executed.

[0131] Step S721: Send a standby instruction to all aging modules to control all aging modules to enter a standby state.

[0132] All aging modules are made to execute standby instructions and enter a state of neither charging nor discharging.

[0133] Step S722: Send a first start instruction to all energy storage devices, so that all energy storage devices are charged according to the corresponding second target power.

[0134] Step S723: sending a plurality of second start instructions to a plurality of aging devices to be charged, so that the plurality of aging devices to be charged are charged according to the corresponding first target powers.

[0135] The aging devices that need to be charged are charged according to the corresponding first target power, and the first target power of the aging devices to be charged is the charging power.

[0136] Step S724: sending a plurality of third start instructions to a plurality of aging devices to be discharged, so that the plurality of aging devices to be discharged are discharged according to the corresponding first target powers.

[0137] Whether the aging device is to be charged or discharged can be determined based on the positive or negative value of the first target power. If the first target power is positive, the aging device is an aging device to be discharged; if the first target power is negative, the aging device is an aging device to be charged.

[0138] The aging equipment that needs to be discharged is discharged according to the corresponding first target power, and the first target power of the aging equipment to be discharged is the discharge power.

[0139] Step S731: Send a standby instruction to all aging modules to control all aging modules to enter a standby state.

[0140] All aging modules are made to execute standby instructions and enter a state of neither charging nor discharging.

[0141] Step S732: sending a plurality of second start instructions to a plurality of aging devices to be charged, so that the plurality of aging devices to be charged are charged according to the corresponding first target powers.

[0142] The aging devices that need to be charged are charged according to the corresponding first target power, and the first target power of the aging devices to be charged is the charging power.

[0143] Step S733: sending a plurality of third start instructions to a plurality of aging devices to be discharged, so that the plurality of aging devices to be discharged are discharged according to the corresponding first target powers.

[0144] The aging equipment that needs to be discharged is discharged according to the corresponding first target power, and the first target power of the aging equipment to be discharged is the discharge power.

[0145] Step S734: sending a first start instruction to all energy storage devices, so that all energy storage devices discharge according to the corresponding second target power.

[0146] The reason why the above sequence is followed is that: since the entire system has multiple aging modules, the speed at which the aging modules respond and the speed at which the charging and discharging power changes may not be synchronized when the centralized control center issues commands. For example, if aging module A is controlled to charge 1000W and aging module B is controlled to discharge 800W at the same time, there is a probability that at a certain point in time, aging module B has already discharged 800W, while the charging power of aging module A has just reached 500W, and then slowly climbs to 1000W. In this process, there will be a node where the energy storage battery aging system as a whole is in a discharging state. The above approach is precisely to avoid this situation.

[0147] Furthermore, the embodiments of the present invention are Figure 2 Based on the energy storage battery aging control method shown in the figure, another energy storage battery aging control method is provided, so that when the energy storage battery aging system feeds power to the grid, the aging module of the energy storage battery aging system is timely adjusted for power, so as to achieve the purpose of not feeding power to the grid. The flow chart of the method is shown in FIG7, which specifically includes the following steps:

[0148] Step S100: allocating a plurality of aging modules in the energy storage battery aging system into a plurality of aging devices and a plurality of energy storage devices.

[0149] According to the aging instructions sent by the HMI, the centralized control center allocates part of all aging modules as aging devices, and the remaining aging modules as energy storage devices. Aging devices are the objects of aging instructions, and energy storage devices are the objects of energy storage battery aging control methods. Specifically, when the overall state of all aging devices is charging, the energy storage devices will discharge for use by the aging devices; when the overall state of all aging devices is discharging, the energy storage devices will charge to absorb the energy of the aging devices.

[0150] Step S200: obtaining a plurality of first target powers according to first parameters of a plurality of aging devices.

[0151] In the embodiment of the present application, the first parameter includes the battery voltage, maximum charging current and maximum discharging current of the energy storage battery. The specific implementation method is that the centralized control center obtains the battery voltage, maximum charging current and maximum discharging current of the energy storage battery, and strictly determines the inverter charging target power and the inverter discharging target power according to the charging and discharging limit allowed by the energy storage battery. Assume that the inverter charging target power is P A (According to the definition P A The value of ≤ 0), the inverter discharge target power is P B (this value ≥ 0), the inverter target power P of a single aging module can be obtained C The expression is:

[0152] P C =P A + P B ,

[0153] From the above formula, we can see that PC>0 means the inverter target power is the discharge power, P C <0 means the inverter target power is charging power, P C =0 means no charge or discharge (for a single energy storage device, P A and P B You can only choose one of the two, P A and P B The settings are mutually exclusive, at least one of them must be 0).

[0154] For example, for a battery with SOC = 50%, it can be charged and discharged. A and P B There are two options for setting. If it is set to charge at 1000W, then P A = -1000W, P B =0; if discharge is set, then P A =0,P B =1000W.

[0155] Step S300: obtaining and recording a first total power according to a plurality of first target powers.

[0156] As an example but not a limitation, there are n aging devices, and the inverter charging target power of each aging device is P A1 , P A2 , ..., P An , the inverter discharge target power is P B1 , P B2 , ..., P Bn , by P C The expression can be obtained that the inverter target power of the n aging devices is P C1 , P C2, ..., P Cn . Obtain the target inverter power of all aging devices, that is, the first total power P aim for:

[0157] ,

[0158] From the above formula, we can see that P aim The value of represents the size of the inverter target power of all aging equipment, P aim The positive and negative signs of indicate the overall charge / discharge status of all aging devices.

[0159] Step S400: obtaining a second total power according to the first total power.

[0160] Specifically, the second total power of the energy storage device is calculated based on the first total power of the aging device. As an example but not a limitation, when the first total power is the discharge power, the second total power is the charging power, and the second total power is greater than the first total power, so as to ensure that the charging power of the energy storage device is greater than the discharge power of the aging device, thereby realizing that the entire system does not discharge to the power grid; when the first total power is the charging power, the second total power is the discharge power, and the second total power is less than the first total power, so as to ensure that the discharge power of the energy storage device is less than the charging power of the aging device, thereby realizing that the entire system does not discharge to the power grid;

[0161] Step S500: obtaining a plurality of second target powers according to the second parameters and the second total power of a plurality of energy storage devices.

[0162] From the above, it can be seen that the sum of the inverter charging target power or the sum of the inverter discharging target power of all energy storage devices in the aging process has been calculated. Then how to allocate the second total power to the energy storage devices specifically involves the difference in the SOC values ​​between the energy storage devices.

[0163] In the embodiment of the present application, the power allocation for energy storage devices follows the following principle: devices with low power are charged first, and devices with high power are discharged first. That is, when the second total power is charging power, according to the SOC value of each energy storage device, energy storage devices with low SOC values ​​are allocated according to the maximum charging limit; when the second total power is discharging power, according to the SOC value of each energy storage device, energy storage devices with high SOC values ​​are allocated according to the maximum discharging limit.

[0164] Step S600: sending a plurality of first target powers to corresponding aging devices, and sending a plurality of second target powers to corresponding energy storage devices.

[0165] After the power allocation is completed, the centralized control center sends several first target powers in the form of inverter charging target power instructions or inverter discharging target power instructions to the corresponding aging equipment; and sends several second target powers in the form of inverter discharging target power instructions or inverter charging target power instructions to the corresponding energy storage equipment.

[0166] Step S810: Obtain the total grid current.

[0167] The centralized control center is connected to an external current sensor. Taking the inverter module as a three-phase inverter as an example, the Hall sensors are connected to the grid side output main power line in sequence according to L1, L2, and L3. The centralized control center obtains the real-time grid current sampling value I through sampling and filtering. L1 ,I L2 ,I L3 , the total grid current I is calculated all for:

[0168] I all = I L1 + I L2 + I L3 ,

[0169] Step S820: Determine whether the sum of the first total power and the second total power is greater than a preset power threshold.

[0170] Determine the first total power P aim and the second total power P 1 Is the sum greater than the preset power threshold? If so, it means that the energy storage battery aging system is feeding power to the grid, and step S830 is executed; if not, exit. As an example but not limitation, the preset power threshold is 100W.

[0171] Step S830: Determine whether the total grid current is greater than a preset current threshold.

[0172] Determine whether the total grid current is greater than a preset current threshold, if yes, execute step S840; if no, exit. As an example but not limitation, the preset current threshold is 1A.

[0173] Step S840: determining whether the first total power is charging power or discharging power.

[0174] Specifically, the first total power P aim The sign of the first total power P aim If the sign of is positive, it is the discharge power, and step S851 is executed; if the first total power P aim If the sign of is negative, it is the charging power, and step S852 is executed.

[0175] Step S851: Increase the first preset coefficient.

[0176] Specifically, the first preset coefficient may be further increased according to the first preset step value, so that the second total power is greater than the first total power, and after delaying for a preset time, the process returns to step S400.

[0177] Step S852: Reduce the second preset coefficient.

[0178] Specifically, the second preset coefficient may be further reduced according to the second preset step value, so that the second total power is greater than the first total power, and after delaying for a preset time, the process returns to step S400.

[0179] The embodiment of the present invention also provides an electronic device based on the above energy storage battery aging control method, and its structural schematic diagram is as follows: Figure 8 As shown, the electronic device 100 includes:

[0180] One or more processors 101, network interface 102 and memory 103, Figure 8 In the figure, a processor 101, a network interface 102 and a memory 103 are taken as an example.

[0181] The network interface 102 is connected to the corresponding processor 101 in communication, and the processor 101 and the memory 102 can be connected via a bus or other means. Figure 8 The example of connecting through bus is taken in the following.

[0182] The network interface 102 is used to establish a communication connection between the processor 101 and other external devices, including the following types: RJ-45 interface, SC optical fiber interface, AUI interface, FDDI interface, Console interface and other interface types.

[0183] The memory 103 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules. The processor 101 executes various functional applications and data processing of the electronic device by running the non-volatile software programs, instructions and units stored in the memory 103, that is, the energy storage battery aging control method of the above method embodiment is implemented.

[0184] The memory 103 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 103 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 103 may optionally include a memory remotely arranged relative to the processor 101, and these remote memories may be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0185] The one or more units are stored in the memory 103, and when executed by one or more processors 101, the energy storage battery aging control method in any of the above method embodiments is executed.

[0186] The electronic device can execute the energy storage battery aging control method provided in the embodiment of the present invention, and has the corresponding program modules and beneficial effects of the execution method. For technical details not fully described in the electronic device embodiment, please refer to the energy storage battery aging control method provided in the embodiment of the present invention.

[0187] The embodiment of the present invention also provides a non-volatile computer-readable storage medium, which may be included in the device described in the above embodiment; or may exist independently without being assembled into the device. The above non-volatile computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the energy storage battery aging control method of the embodiment of the present disclosure is implemented.

[0188] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling aging of an energy storage battery, characterized in that: include: Allocate a number of aging modules in the energy storage battery aging system into a number of aging devices and a number of energy storage devices; The aging module includes an energy storage battery and an inverter device; Obtaining a plurality of first target powers according to the first parameters of the plurality of aging devices; Obtaining and recording a first total power according to the plurality of first target powers; the first total power being the sum of the first target powers of the plurality of aging-related devices; Obtaining a second total power according to the first total power; According to the second parameters of the plurality of energy storage devices and the second total power, obtaining a plurality of second target powers; the second total power is the sum of the second target powers of the plurality of energy storage devices; Sending the plurality of first target powers to corresponding aging devices, and sending the plurality of second target powers to corresponding energy storage devices; Determine whether power reversal occurs when the first total power is compared with the first total power at the last recorded time; If the first total power is switched from charging power to discharging power, a standby instruction is sent to all aging modules to control all aging modules to enter a standby state; Sending a first start instruction to all energy storage devices so that all energy storage devices are charged according to the corresponding second target power; Sending a plurality of second start instructions to a plurality of aging devices to be charged, so that the plurality of aging devices to be charged are charged according to the corresponding first target power; the first target power of the aging devices to be charged is the charging power; Sending a plurality of third start instructions to a plurality of aging devices to be discharged, so that the plurality of aging devices to be discharged are discharged according to corresponding first target powers; the first target power of the aging devices to be discharged is the discharge power.

2. The method according to claim 1, characterized in that If the second total power is a charging power, the second parameter includes a remaining battery power and a maximum charging power, and obtaining the plurality of second target powers according to the second parameters of the plurality of energy storage devices and the second total power includes: Allocating the plurality of energy storage devices into a plurality of first balancing devices and a plurality of first non-balancing devices according to a minimum value of the remaining battery power of the plurality of energy storage devices; When the second total power does not exceed the sum of the maximum charging powers of the plurality of first balancing devices, obtaining a corresponding second target power according to the second total power and the number of first balancing devices; When the second total power exceeds the sum of the maximum charging powers of the plurality of first balancing devices, determining whether the excess power is greater than the sum of the maximum charging powers of the plurality of first non-balancing devices; If not, obtaining the second target power of the corresponding first balancing device according to the maximum charging power of the plurality of first balancing devices, and obtaining the second target power of the corresponding first non-balancing device according to the excess power and the number of the first non-balancing devices; If so, the first target powers of the plurality of aging devices are adjusted so that the excess power is not greater than the sum of the maximum charging powers of the plurality of first non-balanced devices.

3. The method according to claim 1, characterized in that If the second total power is a discharge power, the second parameter includes a remaining battery power and a maximum discharge power, and obtaining the plurality of second target powers according to the second parameters of the plurality of energy storage devices and the second total power includes: Allocating the plurality of energy storage devices into a plurality of second balancing devices and a plurality of second non-balancing devices according to the maximum values ​​of the remaining battery power of the plurality of energy storage devices; When the second total power does not exceed the sum of the maximum discharge powers of the plurality of second balancing devices, obtaining a corresponding second target power according to the second total power and the number of second balancing devices; When the second total power exceeds the sum of the maximum discharge powers of the plurality of second balancing devices, determining whether the excess power is greater than the sum of the maximum discharge powers of the plurality of second non-balancing devices; If not, obtaining the second target power of the corresponding second balancing device according to the maximum discharge power of the plurality of second balancing devices, and obtaining the second target power of the corresponding second non-balancing device according to the excess power and the number of the second non-balancing devices; If yes, then a corresponding second target power is obtained according to the maximum discharge powers of the plurality of second balancing devices and the maximum discharge powers of the plurality of second non-balancing devices.

4. The method according to claim 1, characterized in that If the first total power is switched from discharge power to charge power, a standby instruction is sent to all aging modules to control all aging modules to enter a standby state; Sending a plurality of second start instructions to a plurality of aging devices to be charged, so that the plurality of aging devices to be charged are charged according to the corresponding first target power; the first target power of the aging devices to be charged is the charging power; Sending a plurality of third start instructions to a plurality of aging devices to be discharged, so that the plurality of aging devices to be discharged are discharged according to corresponding first target powers; the first target power of the aging devices to be discharged is the discharge power; A first start instruction is sent to all energy storage devices, so that all energy storage devices discharge according to the corresponding second target power.

5. The method according to any one of claims 1 to 4, characterized in that: The obtaining a second total power according to the first total power comprises: If the first total power is the discharge power, obtaining the second total power according to the first total power and a first preset coefficient, wherein the first preset coefficient is greater than 1; If the first total power is charging power, the second total power is obtained according to the first total power and a second preset coefficient, and the second preset coefficient is less than 1.

6. The method according to claim 5, characterized in that After sending the plurality of first target powers to corresponding aging devices and sending the plurality of second target powers to corresponding energy storage devices, the method further includes: Get the total grid current; Determine whether the sum of the first total power and the second total power is greater than a preset power threshold; If yes, determining whether the total grid current is greater than a preset current threshold; If yes, determining whether the first total power is charging power or discharging power; If the first total power is the charging power, increasing the first preset coefficient; If the first total power is the discharge power, reducing the second preset coefficient; The second total power is obtained again according to the first total power.

7. An electronic device, characterized in that: include: at least one processor; at least one network interface, the network interface being communicatively connected to a corresponding processor; as well as, a memory communicatively connected to the at least one processor; wherein, The network interface is used to establish a communication connection between the processor and other external devices; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the energy storage battery aging control method as described in any one of claims 1-6.

8. A non-volatile computer storage medium, characterized in that: The computer storage medium stores computer executable instructions, and the computer executable instructions are executed by one or more processors, so that the one or more processors can execute the energy storage battery aging control method according to any one of claims 1 to 6.

9. An energy storage battery aging system, characterized in that: include: Power grid; Several aging modules; The aging module includes a battery and an inverter; The AC output sides of the plurality of aging modules are connected to the power grid; The electronic device as claimed in claim 7.

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