Wind-storage Coordination Control Strategy for Improving Secondary Frequency Drop

WANG Sen; AI Dengxin; LIU Xiaonan; ZHANG Li; QI Yan; MENG Lingcong; QIN Chao

doi:10.19725/j.cnki.1007-2322.2023.0254

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Wind-storage Coordination Control Strategy for Improving Secondary Frequency Drop

更新时间：2025-10-22

- Wind-storage Coordination Control Strategy for Improving Secondary Frequency Drop
- Vol. 42, Issue 5, Pages: 1026-1036(2025)
- 作者机构：
  
  1. 国网天津市电力公司电力科学研究院, 天津市河北区,300384
  2. 智能电网教育部重点实验室(天津大学), 天津市南开区,300072
- 作者简介：
- 基金信息：
- DOI：10.19725/j.cnki.1007-2322.2023.0254
  CLC： 5
- Published：2025
- 稿件说明：
移动端阅览
WANG Sen, AI Dengxin, LIU Xiaonan, et al. Wind-storage Coordination Control Strategy for Improving Secondary Frequency Drop[J]. 2025, 42(5): 1026-1036.
DOI：

WANG Sen, AI Dengxin, LIU Xiaonan, et al. Wind-storage Coordination Control Strategy for Improving Secondary Frequency Drop[J]. 2025, 42(5): 1026-1036. DOI： 10.19725/j.cnki.1007-2322.2023.0254.

摘要

高比例风电渗透系统中，风机直接退出调频可能造成严重的频率二次跌落，威胁电网安全稳定运行。为此，提出改善频率二次跌落的风储协调控制策略。首先，该策略对风机调频输出功率曲线进行改进，使风机发挥主导调频作用，并限制风机退出调频引发的功率偏差。其次，设计指数恢复型的储能调频功率曲线，充分发挥储能快速调节特性，缓解风机退出调频对系统频率的影响。最后，在DIgSILENT/PowerFactory软件中搭建两区域系统模型，仿真验证所提策略的有效性。结果表明，该策略通过限制风机功率跌落值可减小系统功率缺额，并配合储能的快速调节，可显著改善系统的频率二次跌落。

Abstract

In a high penetration wind power system

the direct withdrawal of the wind turbine from the frequency regulation may cause a serious secondary drop in frequency

posing a potential threat to the safe and stable operation of the grid. To this end

in this paper we propose a wind storage coordination control strategy aiming to improve the situation of secondary frequency drop. First

by employing the strategy

the turbine output power curve is improved

so as to enable the turbine to assume a dominant frequency regulation role and limit the power deviation caused by the withdrawal of the turbine from frequency regulation. Secondly

the exponential recovery type of energy storage power curve is designedfor frequency regulation

aiming to give full play to the fast regulation characteristics of energy storage and mitigate the impact of wind turbine withdrawal from frequency regulation on the system frequency. Finally

a two-area system model is built in DIgSILENT/PowerFactory software

and the simulation results verify the effectiveness of the strategy in this paper. The results demonstrate that the strategy can mitigate the system power deficit by limiting the turbine power dip value. Additionally

with the rapid regulation of energy storage

it can significantly enhance the frequency secondary drop of the system.

关键词

Keywords

references

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