电力系统保护与控制2011，Vol.39Issue(13)：121-125,5.
云广特高压工程紧急停运及旁路开关操作控制策略研究
Research on control strategy for ESOF & bypass switch operation in Yunnan - Guangdong UHVDC project
张爱玲 1刘涛 1李少华1
作者信息
- 1. 许继电气股份有限公司,河南许昌,461000
- 折叠
摘要
Abstract
The coordination between emergency switch off (ESOF) sequence and operation of bypass switch is the key technology of UHVDC protection control strategy. According to the characteristics of series connection of dual 12-pulse converter groups of Yunnan-Guangdong UHVDC transmission system, start factors of ESOF are summarized, control sequences of pole and group ESOF are put forward, and bypass switch control strategy during ESOF is designed. A special hardware loop is adopted to ensure converter groups be isolated reliably when control system fault. Using the function and dynamic performance test of Yunnan-Guangdong project, the correctness of dynamic process of ESOF sequence is validated. And forced phase-shift time of the healthy converter groups is identified, the ESOF sequence of both stations is optimized, and the DC current mutation during ESOF is reduced.关键词
特高压直流输电/紧急停运顺序/旁路开关/阀组/换流器Key words
UHVDC/ ESOF/ bypass switch/ converter group/ converter分类
信息技术与安全科学引用本文复制引用
张爱玲,刘涛,李少华..云广特高压工程紧急停运及旁路开关操作控制策略研究[J].电力系统保护与控制,2011,39(13):121-125,5.
