ESVG Adaptive Control Method for Fast Frequency Support of Wind Farm  

作　　者：Yong Sun Haifeng Zhang Xiaozhe Song Yifu Zhang Song Gao Jiayang Zhang 

机构地区：[1]State Grid Jilin Electric Power Co.,Ltd.,Changchun,130021,China [2]State Grid Jilin Electric Power Research Institute,Changchun,130021,China [3]School of Electrical Engineering,Northeast Electric Power University,Jilin,132012,China

出　　处：《Energy Engineering》2025年第5期1863-1885,共23页能源工程(英文)

基　　金：funded by the Science and Technology Project of State Grid Corporation,grant number 5500-202329500A-3-2-ZN,funding data 2023.10–2025.12.

摘　　要：Aiming at the problems of large fluctuation of output active power and poor control performance in the process of frequency support of an energy-storage-type static-var-generator(ESVG),the adaptive adjustment control method for its active-loop parameters is used to realize thewind-farmfrequency support,which has become the current research hotspot.Taking the ESVG with a supercapacitor on the DC side as the research object,the influence trend of the change of virtual rotation inertia and virtual damping coefficient on its virtual angular velocity and power angle is analyzed.Then,the constraint relationship between the equivalent virtual inertia time constant of the supercapacitor and the virtual rotation inertia of the ESVG is clarified.Then,combined with the second-order response characteristics of the ESVG power control loop,the selection principles of the frequency modulation coefficient,the virtual rotation inertia,and the virtual damping coefficient are determined.An ESVG adjustment control method,considering the adaptive adjustment of the active loop parameters of the supercapacitor equivalent inertia,is proposed.While ensuring the frequency support capability of the ESVG,the fluctuation degree of its output active power and the virtual angular velocity are suppressed,and the proposed adjustment method also improves the stability of the ESVG control system and the frequency support capability for the wind farm.Finally,the simulation verifies the correctness of the theoretical analysis and the effectiveness of the proposed strategy.

关 键 词：GF-ESVG/ESVG frequency support wind farm adaptive control 

分 类 号：TM614[电气工程—电力系统及自动化]