Residue Based Open-Loop Modal Analysis Method for Detecting LFMR of PMSG-WFs Penetrated Power Systems  

作　　者：Luonan Qiu Tianhao Wen Yang Liu Q.H.Wu 

机构地区：[1]School of Electric Power Engineering,South China University of Technology,Guangzhou,510640,China

出　　处：《CSEE Journal of Power and Energy Systems》2024年第4期1454-1465,共12页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported in part by the State Key Program of National Natural Science Foundation of China under Grant No.U1866210;the National Natural Science Foundation of China under Grant No.51807067。

摘　　要：This paper proposes a residue based open-loop modal analysis method to detect low frequency modal resonance(LFMR),including asymmetric low frequency modal attraction(ALFMA)and asymmetric low frequency modal repulsion(ALFMR),of permanent magnetic synchronous generator based wind farms(PMSG-WFs)penetrated power systems.The formation of ALFMA and ALFMR caused by two open-loop low frequency oscillation(LFO)modes moving close and apart is analyzed in detail.Via predicting the trajectories of closed-loop LFO modes based on calculation of residue of open-loop LFO modes,both ALFMA and ALFMR can be detected.The proposed method can select LFO modes which move to the right half complex plane as control parameters vary.Simulation studies are carried out on a three-machine power system and a four-machine 11-bus power system to verify the properties of the proposed method.

关 键 词：Asymmetric low frequency modal attraction asymmetric low frequency modal repulsion low frequency modal resonance residue based open-loop modal analysis method 

分 类 号：TM743[电气工程—电力系统及自动化]