典型文献
Impedance Analysis Considering Unstable Subsystem Poles for MMC-HVDC-based Wind Farm Integration System
文献摘要：
Employing the AC/DC impedance analysis method,extensive research has been conducted on issues pertaining to harmonic resonance observed in wind farm-connected MMC-HVDC systems over the past 5 years.In general,this method divides the studied system into two subsystems at AC and DC sections.Subsequently,the impedance produced by these subsystems can be used to determine the system stability by implementing Nyquist criterion or generalized Nyquist stability criterion.However,the existing impedance analysis methods usually assume the subsystems to be stable and disregard certain special cases with potentially unstable subsystems,where the unstable poles of these subsystems must be evaluated before applying Nyquist criterion.In view of this consideration,a simplified method for identifying unstable subsystem poles is presented in this paper.Hence,the shortcoming of existing impedance analyses is rectified by considering the unstable sub-system poles.The proposed method and the stability analyses are validated by the electromagnetic transient simulation performed in PSCAD/EMTDC.
文献关键词：
中图分类号：
作者姓名：
Ke Ji;Hui Pang;Shan Liu;Guangfu Tang
作者机构：
China Electric Power Research Institute,Beijing 100192,China;Global Energy Interconnection Research Institute,Beijing 102211,China
文献出处：
引用格式：
[1]Ke Ji;Hui Pang;Shan Liu;Guangfu Tang-.Impedance Analysis Considering Unstable Subsystem Poles for MMC-HVDC-based Wind Farm Integration System)[J].中国电机工程学会电力与能源系统学报（英文版）,2022(02):634-639
A类：
Subsystem
B类：
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AB值：
0.578142
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