天广高压直流输电线路保护系统综述  

HVDC line protection summary of Tian-Guang project

作　　者：邓本飞[1] 

机构地区：[1]中国南方电网超高压输电公司天生桥局,贵州兴义562400

出　　处：《电力系统保护与控制》2008年第19期71-74,80,共5页Power System Protection and Control

摘　　要：天广直流作为一个长距离输电系统,在长达1000km的线路上发生各类故障的可能性及绝对数量都很高,因而直流线路保护对系统的安全运行非常重要。对天广直流系统采用的直流线路保护配置原则以及具体配置进行了介绍,重点讲述了配置每个保护的目的及其保护原理的特性分析;更进一步的,对于直流线路保护与交流线路保护的不同进行了分析总结。The Tian-Guang HVDC project is a long distance power transmission system. The possibility and quantity of fault happening on the 1000km line are very high. Consequently, the DC line protections are crucial to system operation safety and devices security. This paper summarizes this project＇s HVDC line protection configuration, introduces the principles of each protection and its target fault. Furthermore, this paper tries to outline the difference of DC line and AC line protection. As a typical HVDC project, the protection configuration of Tian-Guang system is also typical. It is wished that this paper may contribute to the development of HVDC inChina and provide some technical reference.

关 键 词：天广直流 高压直流线路 行波 保护 故障恢复顺序 

分 类 号：TM773[电气工程—电力系统及自动化]