青藏线供电线路相间短路故障定位算法研究  

Study on fault location of the Qingzang railway distribution systems

作　　者：曾浩[1] 廖芳芳[1] 衣春波[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《中国测试技术》2005年第3期5-7,共3页CHINA MEASUREMENT & TESTING TECHNOLOGY

基　　金：教育部科学技术重点研究项目资助(104163)

摘　　要：本文针对青藏线输电线路的特点,推导出相间短路故障下的故障测距算法。该算法利用序网络分解法对故障网络进行分析,得到基于单端电气量故障距离一般表达式,该算法消除了故障电阻的影响。针对不同类型的故障,利用PSCADEMTDC进行了大量仿真,验证了算法对相间短路故障类型故障定位的性能,得出了可靠的结论。An accurate algorithm for fault location of the Qingzang railway distribution systems is presented.Using one-terminal data, the algorithm analyzes fault network by sequence networks method and get the formula of fault location, eliminating the effect of fault resistance.PSCAD/EMTDC is used to carry out extensive simulation studies for several kinds of fault location.Simulation results have demonstrated the validity of the algorithm under the different fault conditions.

关 键 词：故障定位 序网络分解法 单端电气量 

分 类 号：TM713[电气工程—电力系统及自动化]