DC Side Impedance Modeling and Stability Analysis of VSC-MTDC System

被引：0
|
作者：
Li Y. [1 ]
Liu K. [1 ]
Zhu S. [1 ]
Huai Q. [1 ]
Liao X. [1 ]
机构：
[1] School of Electrical Engineering and Automation, Wuhan University, Wuhan
来源：
Gaodianya Jishu/High Voltage Engineering | 2021年 / 47卷 / 02期
基金：
国家重点研发计划;
关键词：
DC side im-pedance modeling; DC voltage stability; Droop control; Nyquist stability criterion; VSC-MTDC;
D O I：
10.13336/j.1003-6520.hve.20191830
中图分类号：
学科分类号：
摘要：
DC voltage stability is the precondition for the stability of a VSC-MTDC system. Compared with the eigenvalue method, the DC stability of the VSC-MTDC system using impedance stability criterion has the advantages of simple modeling process and clear physical meaning. Consequently, a small signal impedance model of VSC-MTDC system based on general droop control is established in this paper. The influences of transmission power, droop coefficient, line length and DC side capacitance on the stability of VSC-MTDC system are analyzed by using the Nyquist stability criterion. According to the stability analysis, the corresponding simulation experiments are designed and performed to verify the validity of the impedance stability criterion. © 2021, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
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页码：627 / 636
页数：9
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