Comprehensive Control Strategy of Hybrid Energy Storage Participating in Primary Frequency Modulation of Power Grids

CHU Zhijie; HAN Pengyi; ZHENG Lixing; WANG Jianfeng; ZHANG Yong; XUE Xiaojun

doi:10.19805/j.cnki.jcspe.2025.240451

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Comprehensive Control Strategy of Hybrid Energy Storage Participating in Primary Frequency Modulation of Power Grids

更新时间：2026-10-10

- Comprehensive Control Strategy of Hybrid Energy Storage Participating in Primary Frequency Modulation of Power Grids
- Chinese Journal of Power Engineering Vol. 45, Issue 9, Pages: 1511-1518(2025)
- 作者机构：
  
  1. 山西大学电力与建筑学院,山西,太原,030006
  2. 山西京能吕临发电有限公司,山西,吕梁,033000
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240451
  CLC：
- Online First：16 September 2025，
  
  Published：2025
- 稿件说明：
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褚志杰,韩朋谊,郑立星,王建峰,张勇,薛小军. 混合储能参与电网一次调频的综合控制策略研究动力工程学报, 2025, 45(9): 1511-1518 https://doi.

org/10.19805/j.cnki.jcspe.2025.240451
褚志杰,韩朋谊,郑立星,王建峰,张勇,薛小军. 混合储能参与电网一次调频的综合控制策略研究动力工程学报, 2025, 45(9): 1511-1518 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240451.

org/10.19805/j.cnki.jcspe.2025.240451 DOI：

摘要

由于新能源大量并网给电力系统带来了巨大的调频压力

而储能系统可以有效辅助电网调频

因此提出了一种混合储能辅助电网调频的综合控制策略。首先

基于电池和超级电容器储能的荷电状态

形成动作储能的出力和调控策略。然后

将变K下垂控制和变K惯性控制协调配合

并基于

型函数提出辅调频控制策略。当储能系统的电量不足(过多)时

可以通过辅助频率控制技术来增强充电(放电)效率

以此加速储能系统电荷状态的恢复。最后

在Matlab/Simulink中搭建仿真模型

并基于电网实际功率负荷进行对比模拟。结果表明:所提综合控制策略对比无储能时可以将最大频率偏差减小0.044 Hz

频率恢复时间缩短0.335 s

能够有效改善电网频率偏差

保持储能荷电状态

可以有效减少电池储能的动作次数

提高循环寿命。

Abstract

The large-scale integration of renewable energy sources has imposed significant frequency-regulation stress on power systems. As energy-storage systems can effectively assist in frequency regulation

a comprehensive control strategy for hybrid energy-storage systems was proposed to support primary frequency regulations. First

the charging/discharging power and regulation logic of the acting storage were determined according to the state of charge (SOC) of battery and super-capacitor units. Then

variable-K droop and variable-K inertia controls were coordinated

and an auxiliary frequency-regulation strategy based on an

-shaped function was introduced. When the storage SOC was too low (or too high)

the au

xiliary control can enhance charging (or discharging) efficiency to accelerate SOC recovery. Finally

a simulation model was built in MATLAB/Simulink and verified against actual grid power-load data. Results show that

compared with the no-storage case

the proposed strategy reduces the maximum frequency deviation by 0.044 Hz and shortens the frequency-recovery time by 0.335 s

effectively mitigating frequency deviation

maintaining SOC

reducing battery switching action times

and extending battery cycle life.

关键词

Keywords

references

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