An energy storage converter active power control method and device, electronic equipment and storage medium

Abstract

This invention discloses a method, device, electronic equipment, and storage medium for active power control of energy storage converters, belonging to the field of energy storage converter control technology. The method includes: acquiring the total regulation command, target regulation direction, and real-time active power and state of charge of each energy storage converter; determining the maximum regulation power of each energy storage converter according to operating constraint parameters and accumulating them in a preset order; determining the preceding energy storage converter, the last energy storage converter, and the remaining energy storage converters accordingly; allocating regulation power separately and generating a target power command; and controlling the output active power of each energy storage converter according to the target power command. Therefore, by implementing this invention, the problems existing in the prior art, such as the easy triggering of the underlying system protection limit when multiple sets of energy storage converters perform power coordinated regulation, and the insufficient matching accuracy between the actual output power of the entire station and the dispatch command due to the residual of the end allocation, can be solved.

Description

Technical Field

[0001] This invention relates to the field of energy storage converter control technology, specifically to an active power control method, device, electronic equipment, and storage medium for an energy storage converter. Background Technology

[0002] In the process of building new power systems, energy storage converters, as the core energy conversion unit between the power grid and energy storage batteries, play a crucial role in achieving power grid frequency regulation, peak shaving and valley filling, and emergency grid stability control through active power control. By precisely controlling the active power output of multiple energy storage converters, it is possible to ensure that the energy storage system responds to dispatch commands within milliseconds, which is of paramount importance for maintaining the power balance and operational stability of the power system.

[0003] However, existing multi-unit energy storage systems often face problems such as insufficient command response accuracy and easy triggering of underlying protection mechanisms when performing large-scale active power regulation. Current control strategies typically employ simple power ratio allocation or fixed-step adjustment. However, in actual operation, due to differences in the real-time state of charge of each unit and the lack of sufficient consideration of the dynamic constraints of battery charge and discharge boundaries, some units may be forcibly restricted or shut down by the underlying management system due to touching physical safety limits during execution. In addition, traditional allocation logic often produces command residuals at the allocation end that cannot be eliminated by closed-loop control due to rounding errors in calculation accuracy or nonlinear limitations of unit capacity during multi-unit coordinated scheduling. This results in a deviation between the actual output power of the entire station and the total number of dispatch commands, making it difficult to meet the requirements of high-precision power coordinated control. Summary of the Invention

[0004] This invention provides a method, device, electronic equipment, and storage medium for active power control of an energy storage converter. It can solve the problems in the prior art where multiple energy storage converters are prone to triggering the protection limit of the underlying system when performing power coordinated regulation, and the actual output power of the entire station is not accurately matched with the dispatch command due to the residual at the end of the distribution.

[0005] An embodiment of the present invention provides an active power control method for an energy storage converter, comprising: Acquire the total amount of regulation commands, the target regulation direction, the real-time active power of each energy storage converter in multiple energy storage converter groups, and the real-time state of charge of each energy storage converter. Based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulation power of each energy storage converter in the target regulation direction is determined; according to the preset scheduling and allocation order, the target maximum regulation power of each energy storage converter in the target regulation direction is accumulated to generate the power accumulation value corresponding to each energy storage converter. Energy storage converters whose power accumulation value has not reached the total regulation command value are identified as preceding energy storage converters; energy storage converters whose power accumulation value reaches the total regulation command value for the first time are identified as last energy storage converters; and energy storage converters other than preceding and last energy storage converters among multiple groups of energy storage converters are identified as remaining energy storage converters. Based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, a preceding target power command is generated for each preceding energy storage converter; based on the total adjustment command and the target maximum adjustment power of each preceding energy storage converter, the remaining unallocated adjustment amount is generated; based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount, a last target power command is generated; based on the real-time active power of the remaining energy storage converters, a remaining target power command is generated for each remaining energy storage converter. Based on the preceding target power command, the last target power command, and the remaining target power command, control the corresponding energy storage converter to output active power.

[0006] Furthermore, the target adjustment direction includes a power increase direction and a power decrease direction; the operating constraint parameters include the maximum battery charge, maximum charging power, maximum discharging power, upper limit of available state of charge, and lower limit of available state of charge. Based on preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulating power of each energy storage converter in the target regulating direction is determined, including: When the target adjustment direction is the power increase direction, for each energy storage converter, the maximum discharge power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum discharge power, available lower limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum discharge power duration of the current energy storage converter is compared with the preset maximum discharge demand time value to generate the discharge time comparison result corresponding to the current energy storage converter. Based on the discharge time comparison results, maximum discharge power, and real-time active power of the current energy storage converter, determine the maximum upgradable power of the current energy storage converter; and take the maximum upgradable power of the current energy storage converter as the target maximum regulation power of the current energy storage converter in the target regulation direction. When the target adjustment direction is the power reduction direction, for each energy storage converter, the maximum charging power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum charging power, available upper limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum charging power duration of the current energy storage converter is compared with the preset maximum charging demand time value to generate the charging time comparison result corresponding to the current energy storage converter. Based on the current charging time comparison results, maximum charging power, and real-time active power of the current energy storage converter, determine the maximum scalable power of the current energy storage converter; and use the current maximum scalable power of the current energy storage converter as the target maximum regulating power of the current energy storage converter in the target regulating direction.

[0007] Furthermore, according to the preset scheduling and allocation order, the target maximum regulating power of each energy storage converter under the target regulating direction is accumulated to generate the power accumulation value corresponding to each energy storage converter, including: For each energy storage converter, determine its current allocation position in the preset scheduling and allocation order; The target maximum regulating power of all energy storage converters whose assigned position is not greater than the current assigned position is summed in the target regulating direction to generate the power accumulation value corresponding to the current energy storage converter.

[0008] Furthermore, based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, a preceding target power command is generated for each preceding energy storage converter, including: When the target adjustment direction is the power increase direction, for each upstream energy storage converter, calculate the sum of the current real-time active power of the upstream energy storage converter and the current target maximum adjustment power of the upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter. When the target adjustment direction is the power reduction direction, for each upstream energy storage converter, calculate the difference between the current real-time active power of the current upstream energy storage converter and the current target maximum adjustment power of the current upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter.

[0009] Furthermore, based on the total regulation command and the target maximum regulation power of each preceding energy storage converter, the remaining unallocated regulation is generated, including: Calculate the sum of the target maximum regulation power of each preceding energy storage converter to generate the allocated total regulation. The difference between the total adjustment command amount and the total allocated adjustment amount is taken as the remaining unallocated adjustment amount.

[0010] Furthermore, based on the target adjustment direction, the real-time active power of the last-position energy storage converter, and the remaining unallocated adjustment, a last-position target power command is generated, including: When the target adjustment direction is the power increase direction, calculate the sum of the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value. When the target adjustment direction is the power reduction direction, calculate the difference between the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value.

[0011] Furthermore, based on the real-time active power of the remaining energy storage converters, a remaining target power command is generated for each remaining energy storage converter, including: For each remaining energy storage converter, the real-time active power of the current remaining energy storage converter is taken as the remaining target power value corresponding to the current remaining energy storage converter. Based on the remaining target power value corresponding to the current remaining energy storage converter, generate the remaining target power command corresponding to the current remaining energy storage converter.

[0012] Based on the above method embodiments, the present invention provides corresponding apparatus embodiments.

[0013] One embodiment of the present invention provides an active power control device for an energy storage converter, comprising: a data acquisition module, a power parameter calculation module, an energy storage converter partitioning module, a target power command generation module, and an active power control module; The data acquisition module is used to acquire the total adjustment command quantity, the target adjustment direction, the real-time active power of each energy storage converter in the multiple energy storage converters, and the real-time state of charge of each energy storage converter. The power parameter calculation module is used to determine the target maximum regulation power of each energy storage converter in the target regulation direction based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter; and to accumulate the target maximum regulation power of each energy storage converter in the target regulation direction according to the preset scheduling and allocation order, so as to generate the power accumulation value corresponding to each energy storage converter. The energy storage converter partitioning module is used to identify energy storage converters whose power accumulation value has not reached the total regulation command as preceding energy storage converters; to identify energy storage converters whose power accumulation value reaches the total regulation command for the first time as last energy storage converters; and to identify the remaining energy storage converters among the multiple groups of energy storage converters, excluding the preceding and last energy storage converters. The target power command generation module is used to generate a preceding target power command for each preceding energy storage converter based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter; generate the remaining unallocated adjustment amount based on the total adjustment command amount and the target maximum adjustment power of each preceding energy storage converter; generate the last target power command based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount; and generate the remaining target power command for each remaining energy storage converter based on the real-time active power of the remaining energy storage converters. The active power control module is used to control the corresponding energy storage converter to output active power according to the preceding target power command, the last target power command and the remaining target power command.

[0014] Based on the above method embodiments, the present invention provides corresponding electronic device embodiments.

[0015] An embodiment of the present invention provides an electronic device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the active power control method for an energy storage converter according to any one of the above-described method embodiments.

[0016] Based on the above method embodiments, the present invention provides corresponding storage medium embodiments.

[0017] One embodiment of the present invention provides a storage medium storing a computer program thereon, wherein, when the computer program is running, it controls the device where the storage medium is located to execute any of the above-described method embodiments of the active power control method for an energy storage converter.

[0018] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a method, apparatus, electronic device, and storage medium for controlling the active power of an energy storage converter. The method acquires the total regulation command, the target regulation direction, the real-time active power, and the state of charge (SOC) of each energy storage converter; based on operating constraint parameters and SOC, it determines the maximum regulation power of each energy storage converter under the target regulation direction and accumulates them sequentially in a preset order; based on the accumulation results, it determines the preceding energy storage converter, the last energy storage converter, and the remaining energy storage converters; it prioritizes allocating the preceding energy storage converters according to their maximum regulation power, allocates the remaining regulation amount to the last energy storage converter, maintains the real-time active power of the remaining energy storage converters unchanged, and generates a target power command corresponding to each energy storage converter; and it controls the output active power of each energy storage converter according to the target power command.

[0019] This invention, by pre-determining the target maximum regulation power of each energy storage converter in the target regulation direction based on preset operating constraint parameters and real-time state of charge, effectively reduces the risk of triggering underlying system protection limits due to issued commands touching physical safety limits. Based on this, the scheme divides the units participating in dispatch into upstream and downstream energy storage converters. After the upstream units respond at maximum capacity, the remaining unallocated regulation is obtained by successively deducting from the remaining capacity and directly used as the basis for generating commands for the downstream units. This dynamic compensation mechanism based on downstream margins maximizes the absorption of residual errors in end-command commands caused by calculation errors in traditional control, significantly improving the matching accuracy between the actual output power of the entire station and the total command quantity of the grid dispatch. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating an active power control method for an energy storage converter according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the active power control device for an energy storage converter provided in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, to address the problems in existing technologies where multiple energy storage converters easily trigger the protection limits of the underlying system during power coordination regulation, and where the actual output power of the entire station is insufficiently matched with the dispatch command due to the residual at the end of the distribution, an embodiment of the present invention provides an active power control method for energy storage converters, comprising at least the following steps: Step S1: Obtain the total regulation command quantity, target regulation direction, real-time active power of each energy storage converter in the multiple energy storage converter groups, and real-time state of charge of each energy storage converter. Specifically, at the outset of initiating the active power coordinated control process for multiple energy storage converters, the primary step is to establish the macro-level objectives from the upper-level grid dispatch and the control benchmarks for the underlying equipment. In practice, this begins with receiving real-time central control command data from the upper-level dispatch platform, encompassing the overall power regulation demand and the corresponding physical regulation trends. The power regulation demand in the central control command data clarifies the absolute active power target expected from the coordinated output of multiple physical hardware units within the current dispatch cycle. The corresponding physical regulation trends further define the vector direction of power adjustment, strictly categorized into power increase and power decrease states. When the received direction indication is a power increase state, it means that the grid-connected hardware cluster needs to be controlled to increase overall discharge output or reduce overall charging load; conversely, when the direction indication is a power decrease state, it means that the hardware cluster needs to be controlled to increase overall charging absorption or reduce overall discharge output. Simultaneously acquiring the numerical scale and vector direction constitutes a prerequisite for subsequently formulating a safe allocation strategy.

[0024] While clearly defining the macro-level scheduling objectives, it is also necessary to collect the real-time operating status of each independent physical device in parallel. For multiple sets of energy storage converters in grid-connected state, data polling is performed one by one to obtain the current physical active power and battery adequacy parameters of each individual device. The physical active power of an individual device accurately depicts the instantaneous intensity of the corresponding hardware injecting or drawing power from the grid, forming the starting coordinate for calculating the remaining power adjustment margin of a single unit. The battery adequacy parameters of an individual device intuitively quantify the depth of the available energy pool within the corresponding energy storage unit. Mastering the battery adequacy of each independent hardware device is a core dimension for assessing the duration that a single unit can support continuous charging and discharging operations, effectively avoiding the physical risks of assigning heavy discharging tasks to devices with low battery levels or imposing charging tasks on fully charged devices.

[0025] By integrating the global power regulation targets issued from the top level with the actual operating coordinates and power status of individual machines fed back from the bottom level, a precise mapping panorama of external scheduling requirements and internal hardware response capabilities can be constructed at the logic control level. This lays a solid data foundation for generating high-precision full-site power allocation commands without violating the physical safety boundaries of any individual hardware, thus eliminating the technical risk of the underlying hardware triggering its self-protection mechanism due to the blind issuance of scheduling commands.

[0026] Step S2: Based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter, determine the target maximum regulation power of each energy storage converter in the target regulation direction; according to the preset scheduling and allocation order, accumulate the target maximum regulation power of each energy storage converter in the target regulation direction to generate the power accumulation value corresponding to each energy storage converter. In a preferred embodiment, the target adjustment direction includes a power increase direction and a power decrease direction; the operating constraint parameters include the maximum battery charge, maximum charging power, maximum discharging power, upper limit of available state of charge, and lower limit of available state of charge. Based on preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulating power of each energy storage converter in the target regulating direction is determined, including: When the target adjustment direction is the power increase direction, for each energy storage converter, the maximum discharge power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum discharge power, available lower limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum discharge power duration of the current energy storage converter is compared with the preset maximum discharge demand time value to generate the discharge time comparison result corresponding to the current energy storage converter. Based on the discharge time comparison results, maximum discharge power, and real-time active power of the current energy storage converter, determine the maximum upgradable power of the current energy storage converter; and take the maximum upgradable power of the current energy storage converter as the target maximum regulation power of the current energy storage converter in the target regulation direction. When the target adjustment direction is the power reduction direction, for each energy storage converter, the maximum charging power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum charging power, available upper limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum charging power duration of the current energy storage converter is compared with the preset maximum charging demand time value to generate the charging time comparison result corresponding to the current energy storage converter. Based on the current charging time comparison results, maximum charging power, and real-time active power of the current energy storage converter, determine the maximum scalable power of the current energy storage converter; and use the current maximum scalable power of the current energy storage converter as the target maximum regulating power of the current energy storage converter in the target regulating direction.

[0027] In a preferred embodiment, according to a preset scheduling and allocation order, the target maximum regulating power of each energy storage converter under the target regulating direction is accumulated to generate a power accumulation value corresponding to each energy storage converter, including: For each energy storage converter, determine its current allocation position in the preset scheduling and allocation order; The target maximum regulating power of all energy storage converters whose assigned position is not greater than the current assigned position is summed in the target regulating direction to generate the power accumulation value corresponding to the current energy storage converter.

[0028] Specifically, after acquiring the underlying physical operation characteristic data, the control process enters the stage of calculating the single-machine limit capacity and constructing the global resource pool. To ensure the absolute safety of the subsequently generated control commands, it is necessary to combine pre-set physical boundary indicators and the current actual power of each individual device to accurately deduce the maximum output limit of each device under a specific adjustment trend. The aforementioned pre-set physical boundary indicators are the operating constraint parameters, specifically covering the maximum battery charging capacity, maximum charging power, maximum discharging power, upper limit of available state of charge, and lower limit of available state of charge. The maximum battery charging capacity defines the absolute energy pool capacity of a single hardware unit when fully loaded; the maximum charging power and maximum discharging power respectively limit the safe rate of energy throughput of the hardware; the upper limit and lower limit of available state of charge together define a physical power safety corridor that must not be exceeded to prevent the battery from falling into an irreversible state of deep overcharging or severe depletion.

[0029] For different grid dispatch demands in different directions, the calculation logic for ultimate capacity exhibits mirror-symmetric differences. When the received instruction is for a power increase direction, for each of the multiple energy storage converters, the control logic first needs to determine how long the device can continue discharging. Specifically, it extracts the real-time state of charge (SOC) of the currently scanned energy storage converter, subtracts the lower limit of the SOC's usable capacity, and obtains the percentage of safely consumed energy. Multiplying this percentage by the battery's maximum charge capacity yields the total remaining physically releaseable energy of the currently scanned energy storage converter. Subsequently, dividing this remaining total releaseable energy by the maximum discharge power allows calculation of the extreme duration the currently scanned energy storage converter can maintain under extreme full-load output conditions, i.e., the maximum discharge power's duration. The relevant physical process derivation is expressed as follows: In the formula, This represents the maximum discharge power duration of the currently scanned energy storage converter. This represents the maximum charge capacity of the battery. This represents the real-time state of charge of the currently scanned energy storage converter. This represents the lower limit of the usable state of charge. This represents the maximum discharge power.

[0030] After calculating the extreme value duration, it needs to be compared with the minimum support time required by the power grid. The calculated maximum discharge power duration is rigorously compared with the preset maximum discharge demand time value to generate the corresponding discharge time comparison result. According to the discharge time comparison result, if the maximum discharge power duration is not less than the preset maximum discharge demand time value, it indicates that the internal energy reserves of the equipment are extremely abundant and can fully withstand long-term high-intensity discharge consumption. In this case, the maximum discharge power is directly subtracted from the real-time active power of the currently scanned energy storage converter, and the difference is the maximum achievable power of the currently scanned energy storage converter. Conversely, if the maximum discharge power duration is less than the preset maximum discharge demand time value, it indicates that the energy reserves are in a state of shortage, and there is a very high risk of premature depletion and disconnection. In order to ensure uninterrupted continuous support, a derating output strategy must be adopted, that is, the remaining total releaseable energy is averaged down to the maximum discharge demand time value to obtain the converted power, and then the converted power is subtracted from the real-time active power to determine the maximum achievable power of the currently scanned energy storage converter. The final determined maximum achievable power will be directly defined as the target maximum regulating power of the currently scanned energy storage converter in the boost direction. The relevant logical formula is as follows: In the formula, This represents the maximum boostable power. This represents the real-time active power of the currently scanned energy storage converter. This represents the maximum discharge time setpoint.

[0031] Similarly, when the received indication is in the direction of power reduction, the control logic switches to assessing how long the device can continue charging. For each energy storage converter, the percentage of safe charging space is obtained by subtracting the current real-time state of charge of the scanned energy storage converter from the upper limit of available state of charge, and then multiplying this by the maximum battery charging capacity to calculate the remaining absolute charging capacity. Dividing the remaining absolute charging capacity by the maximum charging power, the maximum operating time of the scanned energy storage converter under full load absorption is derived, thus determining the duration of maximum charging power. The specific formula is as follows: In the formula, This represents the duration of maximum charging power. This represents the upper limit of the available states of charge. This represents the maximum charging power.

[0032] Subsequently, the calculated maximum charging power duration is compared with the preset maximum charging demand time setting to generate the corresponding charging time comparison result. If the maximum charging power duration is not less than the preset maximum charging demand time setting, the maximum derating power is obtained by directly subtracting the real-time active power of the currently scanned energy storage converter from the maximum charging power. If the maximum charging power duration is less than the preset maximum charging demand time setting, a similar safety derating protection strategy is adopted. The remaining absolute charging capacity is evenly distributed within the maximum charging demand time setting to obtain the safe absorption power, which is then subtracted from the real-time active power to determine the maximum derating power. The final calculated maximum derating power is defined as the target maximum regulating power of the currently scanned energy storage converter in the derating direction. The calculation logic is as follows: In the formula, This represents the maximum scalable power. This represents the maximum charging demand time setting.

[0033] After accurately assessing the limit adjustment capabilities of each individual device, control actions shift from individual calculations to overall coordination. A pre-defined scheduling order represents the priority of physical hardware participation in scheduling. For each energy storage converter, the current allocation position of the currently called energy storage converter within the pre-defined scheduling order is first precisely verified. Next, following the order of priority, the target maximum adjustment power of all energy storage converters whose allocation position is no greater than the current allocation position in the corresponding direction is accurately captured. The captured power values ​​are then summed, and a forward mathematical accumulation process is used to generate a power accumulation value specific to the currently called energy storage converter. The relevant summation formula is expressed as follows: In the formula, The assigned position is The cumulative power value corresponding to the energy storage converter. The assigned position is The target maximum regulating power corresponding to the energy storage converter. This represents the summation variable that proceeds according to the allocation order.

[0034] By fully integrating equipment capacity boundaries and grid time support limits, dynamic weighting and de-rating calculations are performed on individual machines. The capabilities of individual machines are then layered and elevated into a cluster resource pool according to a predetermined order. This not only provides an absolutely reliable quantitative basis for the subsequent dismantling and scheduling of the overall task, but also eliminates the risk of equipment overcharging, over-discharging, and disconnection from the grid due to blind responses from the algorithmic level.

[0035] Step S3: Identify the energy storage converter whose power accumulation value has not reached the total regulation command as the preceding energy storage converter; identify the energy storage converter whose power accumulation value reaches the total regulation command for the first time as the last energy storage converter; identify the energy storage converters other than the preceding energy storage converter and the last energy storage converter in the multiple groups of energy storage converters as the remaining energy storage converters. Specifically, after generating the cumulative power values ​​corresponding to multiple sets of energy storage converters, the control logic needs to accurately classify the task role of each energy storage converter based on the total adjustment command quantity. The essence of classification lies in dividing the individuals in the cluster into different execution echelons by comparing the quantitative relationship between the cumulative power resources and the scheduling demand.

[0036] First, the screening and determination of preceding energy storage converters are performed. In the preset scheduling allocation order, for energy storage converters ranked high, if their cumulative power value is less than the total regulation command, then the corresponding energy storage converter is determined to be a preceding energy storage converter. In the current scheduling logic, preceding energy storage converters are generally considered as a set of devices whose regulation potential needs to be fully released; that is, the cumulative regulation capacity of the preceding energy storage converters is insufficient to cover the overall scheduling gap. The logical identification conditions for preceding energy storage converters are expressed as follows: In the formula, Represents a collection of preceding energy storage converters; This represents the position in the preset scheduling and allocation order. Energy storage converter; Representative position is The cumulative power value corresponding to the energy storage converter; This represents the total amount of adjustment commands.

[0037] Next, the last energy storage converter is located. During the search along the preset scheduling and allocation sequence, the energy storage converter whose cumulative power value is first greater than or equal to the total regulation command is identified as the last energy storage converter. The last energy storage converter plays a crucial role in residual compensation throughout the entire control cycle, absorbing the remaining regulation increment after the full power response of the preceding energy storage converter, thereby achieving power closed-loop at the station level. The selection logic for the last energy storage converter can be described as follows: In the formula, Represents the last-stage energy storage converter; Representative position is The cumulative power value corresponding to the energy storage converter; Representative position is The cumulative power value corresponding to the energy storage converter.

[0038] Finally, the scope of the remaining energy storage converters was determined. Among all energy storage converters participating in the coordinated control, except for the set of devices already identified as preceding energy storage converters and the unique last energy storage converter, all remaining energy storage converters were labeled as remaining energy storage converters. The remaining energy storage converters are at the end of the regulation sequence. Since the preceding devices can fully meet the current total regulation command, the remaining energy storage converters do not need to change their existing output level within the current control step. The set definition of the remaining energy storage converters is expressed as follows: In the formula, Represents the collection of remaining energy storage converters; It represents the total collection of multiple energy storage converters.

[0039] By accurately mapping and classifying the three types of task roles mentioned above, a clear execution logic priority can be established for each independent hardware device in a complex cluster scheduling environment, ensuring that adjustment tasks can be transferred and allocated in an orderly and unbiased manner among units in different states.

[0040] Step S4: Based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, generate the preceding target power command corresponding to each preceding energy storage converter; based on the total adjustment command and the target maximum adjustment power of each preceding energy storage converter, generate the remaining unallocated adjustment amount; based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount, generate the last target power command; based on the real-time active power of the remaining energy storage converters, generate the remaining target power command corresponding to each remaining energy storage converter. In a preferred embodiment, based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, a preceding target power command corresponding to each preceding energy storage converter is generated, including: When the target adjustment direction is the power increase direction, for each upstream energy storage converter, calculate the sum of the current real-time active power of the upstream energy storage converter and the current target maximum adjustment power of the upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter. When the target adjustment direction is the power reduction direction, for each upstream energy storage converter, calculate the difference between the current real-time active power of the current upstream energy storage converter and the current target maximum adjustment power of the current upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter.

[0041] In a preferred embodiment, the remaining unallocated regulation is generated based on the total regulation command and the target maximum regulation power of each preceding energy storage converter, including: Calculate the sum of the target maximum regulation power of each preceding energy storage converter to generate the allocated total regulation. The difference between the total adjustment command amount and the total allocated adjustment amount is taken as the remaining unallocated adjustment amount.

[0042] In a preferred embodiment, a last-position target power command is generated based on the target adjustment direction, the real-time active power of the last-position energy storage converter, and the remaining unallocated adjustment amount, including: When the target adjustment direction is the power increase direction, calculate the sum of the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value. When the target adjustment direction is the power reduction direction, calculate the difference between the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value.

[0043] In a preferred embodiment, based on the real-time active power of the remaining energy storage converter, a remaining target power command corresponding to each remaining energy storage converter is generated, including: For each remaining energy storage converter, the real-time active power of the current remaining energy storage converter is taken as the remaining target power value corresponding to the current remaining energy storage converter. Based on the remaining target power value corresponding to the current remaining energy storage converter, generate the remaining target power command corresponding to the current remaining energy storage converter.

[0044] Specifically, after the task roles of the energy storage converter cluster are defined, the computation process enters the stage of specific instruction calculation and issuance. The control logic needs to match corresponding instruction generation strategies for the preceding energy storage converter, the last energy storage converter, and the remaining energy storage converters to achieve accurate power allocation across the entire station.

[0045] For upstream energy storage converters, since the regulation potential of the upstream equipment needs to be fully released, the control logic needs to perform calculations according to the target regulation direction. When the target regulation direction indicates a power increase direction, for each upstream energy storage converter, the real-time active power of the current upstream energy storage converter is added to the target maximum regulation power of the current upstream energy storage converter, and the sum is taken as the upstream target power value corresponding to the current upstream energy storage converter. The relevant calculation formula is expressed as follows: In the formula, The assigned position is The preceding target power value corresponding to the preceding energy storage converter. The assigned position is The real-time active power of the preceding energy storage converter The assigned position is The target maximum regulating power of the preceding energy storage converter The sequential variable represents the preceding energy storage converter.

[0046] When the target adjustment direction indicates a power reduction direction, for each preceding energy storage converter, the target power value corresponding to the preceding energy storage converter is generated by subtracting the current target maximum adjustment power of the preceding energy storage converter from its current real-time active power. The mathematical expression is as follows: After calculating the preceding target power value, the data message is encapsulated based on the preceding target power value to generate the preceding target power command corresponding to the current preceding energy storage converter.

[0047] Based on the full-load response of the preceding energy storage converters, it is necessary to calculate the remaining power deficit globally. The control logic sums the target maximum regulation power of each preceding energy storage converter, and the accumulated result generates the allocated regulation amount. Subsequently, the allocated regulation amount is subtracted from the total regulation command amount, and the difference is directly defined as the remaining unallocated regulation amount. The relevant derivation formulas are as follows: In the formula, This represents the total amount of adjustment already allocated. Represents the remaining unallocated adjustment amount. This represents the total amount of adjustment commands.

[0048] The remaining unallocated regulation is entirely handled by the last-stage energy storage converter. Similarly, the calculation for the last-stage energy storage converter also depends on the target regulation direction. When the target regulation direction is the power increase direction, the control logic calculates the sum of the real-time active power of the last-stage energy storage converter and the remaining unallocated regulation; the resulting value is used as the last-stage target power value. The corresponding formula is: In the formula, This represents the last target power value. This represents the real-time active power of the last-stage energy storage converter.

[0049] When the target adjustment direction is the power reduction direction, the control logic uses the real-time active power of the last-position energy storage converter minus the remaining unallocated adjustment amount to calculate the difference, generating the last-position target power value. The corresponding formula is: After obtaining the specific last target power value, the last target power value is converted into a control protocol that the underlying layer can recognize, and the last target power command is generated.

[0050] For the remaining energy storage converters at the back of the scheduling queue, since the total regulation task has been completely consumed by the preceding and last-position devices, the remaining queue only needs to maintain its current state. For each remaining energy storage converter, the control logic directly extracts the real-time active power of the current remaining energy storage converter and uses the extracted physical value directly as the remaining target power value corresponding to the current remaining energy storage converter. The relevant assignment logic is expressed as follows: In the formula, The assigned position is The remaining target power value corresponding to the remaining energy storage converter. The assigned position is The real-time active power of the remaining energy storage converter The sequential variable representing the remaining energy storage converter.

[0051] Based on the remaining target power value corresponding to the current remaining energy storage converter, the remaining target power command corresponding to the current remaining energy storage converter is generated after instruction formatting.

[0052] By adopting differentiated tiered instruction calculation strategies for physical devices with different roles, it not only ensures that all units achieve maximum response within absolutely safe physical boundaries, but also absorbs the residual computing power during the allocation process by utilizing the last-position device smoothing fallback mechanism, ultimately achieving high-precision seamless matching of the actual output power of the entire station to the grid dispatch command.

[0053] Step S5: Control the corresponding energy storage converter to output active power according to the preceding target power command, the last target power command and the remaining target power command.

[0054] Specifically, after completing the quantitative calculation of all equipment in the tiers, the scheduling and control process enters the final physical action execution stage. The instruction issuing layer needs to synchronously aggregate the three types of control instructions generated independently in the early stages: the preceding target power instruction, the last target power instruction, and the remaining target power instruction. Different types of instructions carry different physical response requirements and must be accurately dispatched to the underlying hardware devices of the corresponding roles.

[0055] For the preceding energy storage converters classified as preceding response echelons, the preceding target power command is issued to the corresponding preceding energy storage converters, driving them to output the corresponding active power at full load according to the calculated safety boundary. For the last-stage energy storage converters specifically tasked with residual compensation, the last-stage target power command is transmitted to them, prompting them to precisely release the target power that fills the overall regulation gap. For the remaining energy storage converters not assigned new regulation tasks, the remaining target power command is sent to each remaining energy storage converter, instructing them to continue operating at their original physical output state.

[0056] By synchronously and without deviation issuing control commands matched to different execution roles to the corresponding energy storage converters, all hardware devices can be coordinated to operate jointly within a safe range, enabling multiple energy storage converters to output the final aggregated active power as a whole. Therefore, by implementing the method provided by this invention, the technical problem of easily triggering underlying hardware protection limits when multiple energy storage converters perform power coordination regulation can be effectively solved, and the technical defect of insufficient matching accuracy between the actual output power of the entire station and the grid dispatch commands due to the residual at the end of the distribution process can be completely eliminated.

[0057] Based on the above method embodiments, the present invention provides corresponding apparatus embodiments.

[0058] like Figure 2 As shown, an embodiment of the present invention provides an active power control device for an energy storage converter, comprising: a data acquisition module, a power parameter calculation module, an energy storage converter partitioning module, a target power command generation module, and an active power control module; The data acquisition module is used to acquire the total adjustment command quantity, the target adjustment direction, the real-time active power of each energy storage converter in the multiple energy storage converters, and the real-time state of charge of each energy storage converter. The power parameter calculation module is used to determine the target maximum regulation power of each energy storage converter in the target regulation direction based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter; and to accumulate the target maximum regulation power of each energy storage converter in the target regulation direction according to the preset scheduling and allocation order, so as to generate the power accumulation value corresponding to each energy storage converter. The energy storage converter partitioning module is used to identify energy storage converters whose power accumulation value has not reached the total regulation command as preceding energy storage converters; to identify energy storage converters whose power accumulation value reaches the total regulation command for the first time as last energy storage converters; and to identify the remaining energy storage converters among the multiple groups of energy storage converters, excluding the preceding and last energy storage converters. The target power command generation module is used to generate a preceding target power command for each preceding energy storage converter based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter; generate the remaining unallocated adjustment amount based on the total adjustment command amount and the target maximum adjustment power of each preceding energy storage converter; generate the last target power command based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount; and generate the remaining target power command for each remaining energy storage converter based on the real-time active power of the remaining energy storage converters. The active power control module is used to control the corresponding energy storage converter to output active power according to the preceding target power command, the last target power command and the remaining target power command.

[0059] In a preferred embodiment, the power parameter calculation module includes a power increase direction and a power decrease direction for the target adjustment direction; the operating constraint parameters include the maximum battery charge, maximum charging power, maximum discharging power, upper limit of available state of charge, and lower limit of available state of charge. Based on preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulating power of each energy storage converter in the target regulating direction is determined, including: When the target adjustment direction is the power increase direction, for each energy storage converter, the maximum discharge power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum discharge power, available lower limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum discharge power duration of the current energy storage converter is compared with the preset maximum discharge demand time value to generate the discharge time comparison result corresponding to the current energy storage converter. Based on the discharge time comparison results, maximum discharge power, and real-time active power of the current energy storage converter, determine the maximum upgradable power of the current energy storage converter; and take the maximum upgradable power of the current energy storage converter as the target maximum regulation power of the current energy storage converter in the target regulation direction. When the target adjustment direction is the power reduction direction, for each energy storage converter, the maximum charging power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum charging power, available upper limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum charging power duration of the current energy storage converter is compared with the preset maximum charging demand time value to generate the charging time comparison result corresponding to the current energy storage converter. Based on the current charging time comparison results, maximum charging power, and real-time active power of the current energy storage converter, determine the maximum scalable power of the current energy storage converter; and use the current maximum scalable power of the current energy storage converter as the target maximum regulating power of the current energy storage converter in the target regulating direction.

[0060] In a preferred embodiment, the power parameter calculation module, according to a preset scheduling and allocation order, accumulates the target maximum regulating power of each energy storage converter under the target regulating direction to generate a power accumulation value corresponding to each energy storage converter, including: For each energy storage converter, determine its current allocation position in the preset scheduling and allocation order; The target maximum regulating power of all energy storage converters whose assigned position is not greater than the current assigned position is summed in the target regulating direction to generate the power accumulation value corresponding to the current energy storage converter.

[0061] In a preferred embodiment, the target power command generation module generates a target power command for each preceding energy storage converter based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, including: When the target adjustment direction is the power increase direction, for each upstream energy storage converter, calculate the sum of the current real-time active power of the upstream energy storage converter and the current target maximum adjustment power of the upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter. When the target adjustment direction is the power reduction direction, for each upstream energy storage converter, calculate the difference between the current real-time active power of the current upstream energy storage converter and the current target maximum adjustment power of the current upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter.

[0062] In a preferred embodiment, the target power command generation module generates the remaining unallocated regulation amount based on the total regulation command amount and the target maximum regulation power of each preceding energy storage converter, including: Calculate the sum of the target maximum regulation power of each preceding energy storage converter to generate the allocated total regulation. The difference between the total adjustment command amount and the total allocated adjustment amount is taken as the remaining unallocated adjustment amount.

[0063] In a preferred embodiment, the target power command generation module generates a last-position target power command based on the target adjustment direction, the real-time active power of the last-position energy storage converter, and the remaining unallocated adjustment amount, including: When the target adjustment direction is the power increase direction, calculate the sum of the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value. When the target adjustment direction is the power reduction direction, calculate the difference between the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value.

[0064] In a preferred embodiment, the target power command generation module generates a remaining target power command for each remaining energy storage converter based on the real-time active power of the remaining energy storage converter, including: For each remaining energy storage converter, the real-time active power of the current remaining energy storage converter is taken as the remaining target power value corresponding to the current remaining energy storage converter. Based on the remaining target power value corresponding to the current remaining energy storage converter, generate the remaining target power command corresponding to the current remaining energy storage converter.

[0065] It should be noted that the embodiments of the device described above correspond to the embodiments of the present invention described above, and can realize the active power control method of the energy storage converter described in any one of the above embodiments of the present invention. Furthermore, the embodiments of the device described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without creative effort.

[0066] Based on the above-described method embodiments of the present invention, a corresponding embodiment of an electronic device is provided.

[0067] An embodiment of the present invention provides an electronic device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements the active power control method of the energy storage converter according to any one of the present invention, or, when the processor executes the computer program, it implements the functions of each module in the above-described device embodiments.

[0068] For example, the computer program may be divided into one or more modules, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the terminal device.

[0069] The terminal device may be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0070] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device via various interfaces and lines.

[0071] The memory can be used to store the computer programs and / or modules. The processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and by calling data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function, etc.; the data storage area may store data created based on the use of the mobile phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital card (SD card), flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0072] Based on the above method embodiments, the present invention provides corresponding storage medium embodiments; Another embodiment of the present invention provides a storage medium including a stored computer program, wherein, when the computer program is running, it controls the device where the storage medium is located to execute any of the above-described energy storage converter active power control methods of the present invention.

[0073] The aforementioned storage medium is a computer-readable storage medium, and the computer program includes computer program code, which may be in the form of source code, object code, executable file, or certain intermediate forms. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0075] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for controlling the active power of an energy storage converter, characterized in that, include: Acquire the total amount of regulation commands, the target regulation direction, the real-time active power of each energy storage converter in multiple energy storage converter groups, and the real-time state of charge of each energy storage converter. Based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulation power of each energy storage converter in the target regulation direction is determined; according to the preset scheduling and allocation order, the target maximum regulation power of each energy storage converter in the target regulation direction is accumulated to generate the power accumulation value corresponding to each energy storage converter. Energy storage converters whose power accumulation value has not reached the total regulation command value are identified as preceding energy storage converters; energy storage converters whose power accumulation value reaches the total regulation command value for the first time are identified as last energy storage converters; and energy storage converters other than preceding and last energy storage converters among multiple groups of energy storage converters are identified as remaining energy storage converters. Based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, a preceding target power command is generated for each preceding energy storage converter; based on the total adjustment command and the target maximum adjustment power of each preceding energy storage converter, the remaining unallocated adjustment amount is generated; based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount, a last target power command is generated; based on the real-time active power of the remaining energy storage converters, a remaining target power command is generated for each remaining energy storage converter. Based on the preceding target power command, the last target power command, and the remaining target power command, control the corresponding energy storage converter to output active power.

2. The active power control method for an energy storage converter as described in claim 1, characterized in that, The target adjustment direction includes the power increase direction and the power decrease direction; the operating constraint parameters include the maximum battery charge, maximum charging power, maximum discharging power, upper limit of available state of charge, and lower limit of available state of charge. Based on preset operating constraint parameters and the real-time state of charge of each energy storage converter, the target maximum regulating power of each energy storage converter in the target regulating direction is determined, including: When the target adjustment direction is the power increase direction, for each energy storage converter, the maximum discharge power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum discharge power, available lower limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum discharge power duration of the current energy storage converter is compared with the preset maximum discharge demand time value to generate the discharge time comparison result corresponding to the current energy storage converter. Based on the discharge time comparison results, maximum discharge power, and real-time active power of the current energy storage converter, determine the maximum upgradable power of the current energy storage converter; and take the maximum upgradable power of the current energy storage converter as the target maximum regulation power of the current energy storage converter in the target regulation direction. When the target adjustment direction is the power reduction direction, for each energy storage converter, the maximum charging power duration of the current energy storage converter is determined based on the battery's maximum charging capacity, maximum charging power, available upper limit of state of charge, and the current real-time state of charge of the energy storage converter. The maximum charging power duration of the current energy storage converter is compared with the preset maximum charging demand time value to generate the charging time comparison result corresponding to the current energy storage converter. Based on the current charging time comparison results, maximum charging power, and real-time active power of the current energy storage converter, determine the maximum scalable power of the current energy storage converter; and use the current maximum scalable power of the current energy storage converter as the target maximum regulating power of the current energy storage converter in the target regulating direction.

3. The active power control method for an energy storage converter as described in claim 2, characterized in that, According to the preset scheduling and allocation order, the target maximum regulation power of each energy storage converter under the target regulation direction is accumulated to generate the power accumulation value corresponding to each energy storage converter, including: For each energy storage converter, determine its current allocation position in the preset scheduling and allocation order; The target maximum regulating power of all energy storage converters whose assigned position is not greater than the current assigned position is summed in the target regulating direction to generate the power accumulation value corresponding to the current energy storage converter.

4. The active power control method for an energy storage converter as described in claim 3, characterized in that, Based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter, a preceding target power command is generated for each preceding energy storage converter, including: When the target adjustment direction is the power increase direction, for each upstream energy storage converter, calculate the sum of the current real-time active power of the upstream energy storage converter and the current target maximum adjustment power of the upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter. When the target adjustment direction is the power reduction direction, for each upstream energy storage converter, calculate the difference between the current real-time active power of the current upstream energy storage converter and the current target maximum adjustment power of the current upstream energy storage converter, and generate the upstream target power value corresponding to the current upstream energy storage converter; based on the upstream target power value corresponding to the current upstream energy storage converter, generate the upstream target power command corresponding to the current upstream energy storage converter.

5. The active power control method for an energy storage converter as described in claim 4, characterized in that, Based on the total regulation command and the target maximum regulation power of each preceding energy storage converter, the remaining unallocated regulation is generated, including: Calculate the sum of the target maximum regulation power of each preceding energy storage converter to generate the allocated total regulation. The difference between the total adjustment command amount and the total allocated adjustment amount is taken as the remaining unallocated adjustment amount.

6. The active power control method for an energy storage converter as described in claim 5, characterized in that, Based on the target adjustment direction, the real-time active power of the last-position energy storage converter, and the remaining unallocated adjustment, a last-position target power command is generated, including: When the target adjustment direction is the power increase direction, calculate the sum of the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value. When the target adjustment direction is the power reduction direction, calculate the difference between the real-time active power of the last energy storage converter and the remaining unallocated adjustment amount to generate the last target power value; generate the last target power command based on the last target power value.

7. The active power control method for an energy storage converter as described in claim 6, characterized in that, Based on the real-time active power of the remaining energy storage converters, generate the remaining target power command for each remaining energy storage converter, including: For each remaining energy storage converter, the real-time active power of the current remaining energy storage converter is taken as the remaining target power value corresponding to the current remaining energy storage converter. Based on the remaining target power value corresponding to the current remaining energy storage converter, generate the remaining target power command corresponding to the current remaining energy storage converter.

8. An active power control device for an energy storage converter, characterized in that, include: The module includes a data acquisition module, a power parameter calculation module, an energy storage converter partitioning module, a target power command generation module, and an active power control module. The data acquisition module is used to acquire the total adjustment command quantity, the target adjustment direction, the real-time active power of each energy storage converter in the multiple energy storage converters, and the real-time state of charge of each energy storage converter. The power parameter calculation module is used to determine the target maximum regulation power of each energy storage converter in the target regulation direction based on the preset operating constraint parameters and the real-time state of charge of each energy storage converter; and to accumulate the target maximum regulation power of each energy storage converter in the target regulation direction according to the preset scheduling and allocation order, so as to generate the power accumulation value corresponding to each energy storage converter. The energy storage converter partitioning module is used to identify energy storage converters whose power accumulation value has not reached the total regulation command as preceding energy storage converters; to identify energy storage converters whose power accumulation value reaches the total regulation command for the first time as last energy storage converters; and to identify the remaining energy storage converters among the multiple groups of energy storage converters, excluding the preceding and last energy storage converters. The target power command generation module is used to generate a preceding target power command for each preceding energy storage converter based on the target adjustment direction, the real-time active power of the preceding energy storage converter, and the target maximum adjustment power of the preceding energy storage converter; generate the remaining unallocated adjustment amount based on the total adjustment command amount and the target maximum adjustment power of each preceding energy storage converter; generate the last target power command based on the target adjustment direction, the real-time active power of the last energy storage converter, and the remaining unallocated adjustment amount; and generate the remaining target power command for each remaining energy storage converter based on the real-time active power of the remaining energy storage converters. The active power control module is used to control the corresponding energy storage converter to output active power according to the preceding target power command, the last target power command and the remaining target power command.

9. An electronic device, characterized in that, The device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor, when executing the computer program, implements the active power control method for an energy storage converter as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium includes a stored computer program, wherein, when the computer program is executed, it controls the device containing the storage medium to perform the active power control method for an energy storage converter as described in any one of claims 1 to 7.

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