南方电网技术2011，Vol.5Issue(5)：26-29,4.
天广直流系统双极线路保护误动作分析
Analysis on the Fault Trip of Bipolar DC Line Protection in Tianshengqiao—Guangzhou HVDC System
田庆1
作者信息
- 1. 中国南方电网超高压输电公司检修试验中心,广州510663
- 折叠
摘要
Abstract
8 months after control and protection modification completed in Tianshengqiao-Guangzhou HVDC System,line protection has tripped 22 times.3 of these are bipolar line protection false tripping,which are analyzed in this paper.Two corresponding methods： lowing the under voltage protection value and increasing the du/dt protection value,are put forward according to the protection threshold values and the setting process given by the manufacturers.No bipolar line protection accident occurs until now with the above methods implemented.关键词
天广直流输电线路/突变量保护/双极线路/保护动作Key words
Tianshengqiao-Guangzhou HVDC Transmission Line/du/dt protection/bipolar DC line/protection trip分类
信息技术与安全科学引用本文复制引用
田庆..天广直流系统双极线路保护误动作分析[J].南方电网技术,2011,5(5):26-29,4.
