电力系统保护与控制2025，Vol.53Issue(3)：58-67,10.DOI:10.19783/j.cnki.pspc.240623
计及DFIG调频的系统频率响应特性分析及快速频率支撑策略研究
System frequency response characteristic considering DFIG frequency regulation and fast frequency response strategy
摘要
Abstract
To address the issues of an unclear system frequency response model with a doubly-fed induction generator(DFIG)and insufficient utilization of rotor effective rotational kinetic energy,this paper proposes a frequency support strategy based on the effective rotational kinetic energy of the DFIG.Firstly,a system frequency response model including DFIG frequency regulation is established based on the traditional system frequency response model,and an expression for system frequency deviation considering wind power penetration is derived.The impact of DFIG frequency regulation on system frequency response characteristics with different damping ratios is analyzed.Secondly,the advantages and disadvantages of existing frequency support strategies considering DFIG rotor speed are deeply analyzed.Combining the regulatory requirements for frequency regulation control parameters of wind turbines in China,an adaptive frequency support strategy based on the effective rotational kinetic energy of the DFIG is designed.Finally,based on the IEEE 14-bus power system model,the superior performance of the proposed strategy in fully releasing rotor kinetic energy for frequency regulation under different disturbances,wind speeds,and wind power penetration conditions is verified.关键词
双馈风电机组/自适应频率支撑策略/频率响应模型/下垂控制Key words
DFIG/adaptive frequency support strategy/frequency response model/droop control引用本文复制引用
钱敏慧,张建胜,秦文萍,杨德健,王鑫..计及DFIG调频的系统频率响应特性分析及快速频率支撑策略研究[J].电力系统保护与控制,2025,53(3):58-67,10.基金项目
This work is supported by the National Key Research and Development Program of China(No.2021YFB2400500). 国家重点研发计划项目资助(2021YFB2400500) （No.2021YFB2400500）
