Power-Synchronization Loop for Vector Current Control of VSC-HVDC Connected to Weak System

被引：0
|
作者：
Han, Minxiao [1 ]
Xiong, Lingfei [1 ]
Wan, Lei [2 ]
机构：
[1] North China Elect Power Univ, Sch Elect & Elect Engn, Baoding, Peoples R China
[2] Elect Power Res Inst, Beijing, Peoples R China
来源：
2012 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) | 2012年
关键词：
PLL; Power-Synchronization Loop; Vector Current Control; VSC-HVDC;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Effective control of VSC-HVDC connected to weak system is one of the important issues related to the reliable operation of the entire DC system. Firstly, the operation principles of the traditional Vector Current Control are described, and the mechanism of its failure in control due to PLL can't get phase-locked accurately in the transient process when connected to weak system. Then an integrated method combining Power-Synchronization Loop and Vector Current Control is proposed as the control method for VSC that connected to weak system. At last, a VSC-MTDC model with three terminals (one terminal connected to weak system) established base on PSCAD/EMTDC is used to demonstrate the better transient performance of proposed method compared to the traditional Vector Current Control.
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页数：5
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