Energy storage group power distribution method, system, processing equipment and storage medium

A technology of energy storage system and distribution method, applied in the direction of AC network load balancing, AC network circuit, electrical components, etc., can solve the problems of energy storage system charge state, rated capacity and rated power, difficulty, etc., to eliminate disadvantages Influence, improve consistency, improve the effect of power control accuracy

Active Publication Date: 2022-04-26
CECEP WIND POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the state of charge, rated capacity, and rated power of each energy storage system are different, it is difficult to quickly and accurately allocate the total power command.

Method used

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  • Energy storage group power distribution method, system, processing equipment and storage medium
  • Energy storage group power distribution method, system, processing equipment and storage medium
  • Energy storage group power distribution method, system, processing equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Based on the above description, as figure 1 As shown, this embodiment provides a power distribution method for an energy storage group, including the following steps:

[0047] 1) Using a decentralized time-limited converger to determine the average value of the state of charge of an energy storage group composed of multiple energy storage systems, specifically:

[0048] 1.1) According to the energy storage system with the closest spatial distance in the energy storage group, establish the communication network of the energy storage group.

[0049] 1.2) Based on the established communication network of the energy storage group, according to the actual communication situation between the energy storage systems with the closest spatial distance in the energy storage group, determine the distance between the i-th energy storage system with the closest spatial distance and the j-th energy storage system in the energy storage group. communication element a ij .

[0050] Sp...

Embodiment 2

[0068] This embodiment provides a power distribution system for an energy storage group, including:

[0069] The state of charge determination module is used for determining the average value of the state of charge of an energy storage group composed of a plurality of energy storage systems by adopting a decentralized time-limited converger.

[0070] The power command determination module is used for using a nonlinear distributor to distribute the total power of the energy storage group according to the average value of the state of charge of the energy storage group to obtain the power command value of each energy storage system.

[0071] In a preferred embodiment, the state of charge determination module includes:

[0072] The communication network establishment module is used to establish the communication network of the energy storage group according to the energy storage system with the closest spatial distance in the energy storage group.

[0073] The communication elem...

Embodiment 3

[0084] This embodiment provides a processing device corresponding to the energy storage group power distribution method provided in Embodiment 1. The processing device may be a processing device used for a client, such as a mobile phone, a notebook computer, a tablet computer, a desktop computer, etc., to execute The method of Example 1.

[0085] The processing device includes a processor, a memory, a communication interface and a bus, and the processor, the memory and the communication interface are connected through the bus to complete mutual communication. A computer program that can be run on the processing device is stored in the memory, and when the processing device runs the computer program, the method for power distribution of the energy storage group provided in Embodiment 1 is executed.

[0086] In some implementations, the memory may be a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory (non-volatile memory), s...

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Abstract

The present invention relates to a power distribution method, system, processing equipment and storage medium of an energy storage group, characterized in that the method comprises: using a decentralized time-limited convergent device to determine the average charge state of an energy storage group composed of a plurality of energy storage systems; using The nonlinear distributor distributes the total power of the energy storage group according to the average state of charge of the energy storage group to obtain the power command value of each energy storage system. The invention can improve the consistency of all energy storage systems in the energy storage group and improve the safe operation of the energy storage group The ability to eliminate the adverse effects of communication failures on the power distribution of the energy storage group and improve the power control accuracy of the energy storage group can be widely used in the field of new energy power generation.

Description

technical field [0001] The invention relates to the field of new energy power generation, in particular to a power distribution method, system, processing device and storage medium for an energy storage group. Background technique [0002] The energy storage system is an important means to reduce the output fluctuation of wind power, photovoltaic and other new energy power generation and improve the stability of the power grid. In order to give full play to the role of the energy storage system, it is often necessary to connect multiple energy storage systems in parallel to form an energy storage group with a larger capacity. When the energy storage group is charging and discharging, the total power command of the energy storage group needs to be allocated to each energy storage system. [0003] However, since the state of charge, rated capacity, and rated power of each energy storage system are different, it is difficult to quickly and accurately allocate the total power c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J3/46
CPCH02J3/28H02J3/466H02J2300/20H02J2300/24H02J2300/28H02J2300/40Y02E10/56
Inventor 曹彬杨尚丹张迅其他发明人请求不公开姓名
Owner CECEP WIND POWER
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