Frequency Regulation Strategy for Wind Power Considering Grouping Control and Orderly Recovery

Huanjing LAO; Li ZHANG; Tong ZHAO; Liang ZOU

doi:10.7500/AEPS20200312006

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Frequency Regulation Strategy for Wind Power Considering Grouping Control and Orderly Recovery

Application Research | 更新时间：2025-06-16

- Frequency Regulation Strategy for Wind Power Considering Grouping Control and Orderly Recovery
- Automation of Electric Power Systems Vol. 44, Issue 16, Pages: 114-120(2020)
- 作者机构：
  
  山东大学电气工程学院，山东省济南市 250061
- 作者简介：
- 基金信息：
- DOI：10.7500/AEPS20200312006
  CLC：
- Received：12 March 2020，
  
  Revised：2020-04-14，
  
  Published Online：21 May 2020，
  
  Published：25 August 2020
- 稿件说明：
移动端阅览
劳焕景,张黎,赵彤等.考虑分组控制和有序恢复的风电调频策略[J].电力系统自动化,2020,44(16):114-120.

LAO Huanjing,ZHANG Li,ZHAO Tong,et al.Frequency Regulation Strategy for Wind Power Considering Grouping Control and Orderly Recovery[J].Automation of Electric Power Systems,2020,44(16):114-120.
劳焕景,张黎,赵彤等.考虑分组控制和有序恢复的风电调频策略[J].电力系统自动化,2020,44(16):114-120. DOI： 10.7500/AEPS20200312006.

LAO Huanjing,ZHANG Li,ZHAO Tong,et al.Frequency Regulation Strategy for Wind Power Considering Grouping Control and Orderly Recovery[J].Automation of Electric Power Systems,2020,44(16):114-120. DOI： 10.7500/AEPS20200312006.

摘要

针对高风电渗透水平下运行的电力系统，提出一种考虑分组控制和错位恢复的风电调频策略。首先，基于风力发电机在该策略不同控制参数设置下的运行特性，将风力发电机分组，为后续错位转速恢复减轻频率二次冲击奠定基础。在发生频率跌落时，令各组风力发电机均提升有功功率至转矩保护限制下的最大值来抑制频率跌落。考虑调频时基于转子转速或可释放转动惯量调节的控制策略与系统频率解耦，通过补充频率过调抑制系数对风力发电机参考功率进行修正。仿真结果表明，所提策略通过让风力发电机分组错位启动转速恢复和以“先抑后扬”的功率调节方式来收敛回到最大功率运行点，能有效平滑风力发电机调频状态切换时的过渡过程，并使转速恢复不至于过慢。同时，频率过调抑制系数的引入增强了被触发后与系统频率解耦的调频控制对不同程度扰动的适应性。

Abstract

Aiming at the power system with high wind power penetration level

a frequency regulation strategy of wind power based on grouping control and staggered recovery is proposed. Firstly

based on the operation characteristics of wind power generators with different control parameters setting of the strategy

wind power generators are divided into groups

which lays a foundation for recovery of subsequent staggered rotor speed and alleviation of secondary frequency impact. When frequency drops

every group of wind power generators raise active power to the maximum value within torque protection limit to restrain frequency drop. Considering that the control strategy based on rotor speed or releasable kinetic energy is decoupled with the system frequency

the reference power of wind power generators is modified by supplementing the frequency overshoot suppression coefficient. The simulation results indicate that by executing staggeringly rotor speed recovery of wind power generators in groups and proceeding the course of regaining back to maximum power point tracking with power adjustment in a “first repress then raise” way

the proposed strategy can smooth the transient process of state switching for frequency regulation and make the speed recovery not too slow. Meanwhile

the frequency overshoot suppression coefficient is introduced to enhance the adaptability of the frequency regulation control for varying degrees of disturbances

which is triggered and decoupled from system frequency.

关键词

Keywords

references

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