高压电器2012，Vol.48Issue(4)：33-38,6.
天广工程直流线路突变量保护误动作分析
Analysis on the Fault Trip of Bipole DC Line Protection in Tianguang HVDC
田庆1
作者信息
- 1. 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
This paper analyses three bipole line protection accidents after the completion of the Tianguang HVDC control and protection regenerated system. The reason of DC line dU/dt protection fault trip is given according to the transient fault record in Tianshenqiao converter station and Guangzhou converter station. The set value of dU/ dt protection and the setting process are studied in order to understand the fault trip. Two corresponding methods, lowing the under voltage protection value and increasing the dU/dt protection value, are put forward which are proved by the field effect. When these methods are utilized in future China home-produced HVDC control and protection system, the HVDC can operate better.关键词
天广直流/突变量保护/双极线路保护动作Key words
Tianguang HVDC/ dU/dt protection/ bipole 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..天广工程直流线路突变量保护误动作分析[J].高压电器,2012,48(4):33-38,6.
