Research on power distribution strategy of DC microgrid system based on hydrogen energy storage

WANG Yuxuan; JIANG Luyi; FAN Xuefei

doi:10.19666/j.rlfd.202305090

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Research on power distribution strategy of DC microgrid system based on hydrogen energy storage

Thermal Power Generation Vol. 52, Issue 11, Pages: 105-114(2023)

更新时间：2025-09-28

- Research on power distribution strategy of DC microgrid system based on hydrogen energy storage
- 作者机构：
  
  上海发电设备成套设计研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202305090
  CLC： TM721.1
- Published：2023
- 稿件说明：
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WANG Yuxuan, JIANG Luyi, FAN Xuefei. Research on power distribution strategy of DC microgrid system based on hydrogen energy storage[J]. Thermal Power Generation, 2023, 52(11): 105-114.
DOI：

WANG Yuxuan, JIANG Luyi, FAN Xuefei. Research on power distribution strategy of DC microgrid system based on hydrogen energy storage[J]. Thermal Power Generation, 2023, 52(11): 105-114. DOI： 10.19666/j.rlfd.202305090.

摘要

基于光伏发电、锂电池-超级电容混合储能、电解水制氢和燃氢微型燃气轮机耦合的直流微电网系统，提出了一种综合考虑锂电池荷电状态（SOC）和储氢罐氢状态（LOH）的功率分配策略。构建了光伏-制氢-微型燃气轮机直流微电网系统模型；设计了协调控制层功率判断模块的分配逻辑，给出了直流网内存在剩余功率时的3种运行模式。使用MATLAB/SIMULINK软件对该功率分配策略进行仿真验证，结果表明，基于氢储能的直流微电网系统功率分配策略能够使得锂电池荷电状态逐渐趋于合理存储区间，可以提升锂电池的使用寿命。

Abstract

Based on a DC microgrid system coupled with photovoltaic power generation

lithium batterysupercapacitor hybrid energy storage

electrolysistank and hydrogen-burning micro gas turbine

a power allocation strategy that integrates the lithium battery state of charge(SOC) and hydrogen storage tank hydrogen state(LOH)is proposed. A PV-electrolysistank-micro gas turbine DC microgrid system model is constructed. The allocation logic of the power judgment module of the coordination control layer is designed

and three operation modes are given when the residual power exists in the DC network. The power allocation strategy is simulated and verified using MATLAB/Simulink software. The simulation results show that the power allocation strategy of DC microgrid system based on hydrogen energy storage can make the lithium battery charge state gradually converge to a reasonable storage interval and can improve the service life of lithium battery.

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