Correlation Analysis and Distribution Characterization of Frequency Regulation Resources and Frequency Spatiotemporal Dynamics in Renewable Energy Power Systems

Lei HAN; Guoyi XU; Cheng WANG; Tianshu BI

doi:10.13334/j.0258-8013.pcsee.232772

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Correlation Analysis and Distribution Characterization of Frequency Regulation Resources and Frequency Spatiotemporal Dynamics in Renewable Energy Power Systems

Renewables and Energy Storage | 更新时间：2026-02-05

- Correlation Analysis and Distribution Characterization of Frequency Regulation Resources and Frequency Spatiotemporal Dynamics in Renewable Energy Power Systems
- Proceedings of the CSEE Vol. 45, Issue 13, Pages: 5106-5118(2025)
- 作者机构：
  
  新能源电力系统全国重点实验室(华北电力大学), 北京市昌平区 102206
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China(2022YFB4202304)
- DOI：10.13334/j.0258-8013.pcsee.232772
  CLC： TM73
- Received：18 December 2023，
  
  Online First：14 May 2024，
  
  Published：05 July 2025
- 稿件说明：
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Lei HAN, Guoyi XU, Cheng WANG, et al. Correlation Analysis and Distribution Characterization of Frequency Regulation Resources and Frequency Spatiotemporal Dynamics in Renewable Energy Power Systems[J]. Proceedings of the CSEE, 2025, 45(13): 5106-5118.
DOI：

Lei HAN, Guoyi XU, Cheng WANG, et al. Correlation Analysis and Distribution Characterization of Frequency Regulation Resources and Frequency Spatiotemporal Dynamics in Renewable Energy Power Systems[J]. Proceedings of the CSEE, 2025, 45(13): 5106-5118. DOI： 10.13334/j.0258-8013.pcsee.232772.

摘要

随着风光新能源大量接入，电力系统调频能力降低，系统频率失稳风险增大，频率动态分布特性日益显著。为了提高系统频率稳定性，引入风光等新能源参与调频，其控制策略多样化使得频率动态过程愈发复杂，系统频率稳定控制面临极大挑战。对此，该文对调频资源与频率分布的关联性进行分析，并基于此提出一种调频资源的分布表征方法。首先，以两机系统为例，分析调频资源参数对频率分布的影响。进而基于网络方程推导考虑新能源接入下发电机节点与网络节点的频率关系。然后，基于节点间频率关系推导得到节点等效调频参数表达式，利用节点等效调频参数表征调频资源的分布。最后，通过算例验证该文推导结果及表征方法的有效性。表征方法有利于新能源电力系统频率动态过程分析，也可以为新能源并网及场站频率控制策略参数的配置提供参考。

Abstract

The large-scale penetration of renewable energy such as wind power and photovoltaic decreases the frequency regulation capability of the power system

leading to an increased risk of frequency instability and the dynamic distribution characteristics of frequency have become increasingly prominent. In order to improve frequency stability

renewable energy generators are introduced to participate in frequency regulation. The diversification of control strategies makes frequency dynamics even more complex

which brings challenges to system frequency stability. This paper analyzes the correlation between frequency regulation resources and frequency distribution

and proposes a distribution characterization method of frequency regulation resources. First

the influence of frequency control parameters on frequency distribution is analyzed by two generators system. Furthermore

considering the integration of renewable energy generators

the frequency relationship between the generator nodes and the network nodes is derived based on the network equation. Then

based on the frequency relationship

the expression of node equivalent frequency control parameters is derived to characterize the distribution of frequency regulation resources. Finally

the effectiveness of the derivation results and characterization method is verified by a simulation example. The characterization method is beneficial for analyzing the frequency dynamic process of renewable energy power systems and can also provide a reference for the configuration of renewable energy grid connection and frequency control strategy parameters.

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Keywords

references

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