摘要
对影响输电线路行波故障测距准确性的行波衰减、畸变现象进行研究,实现输电线路故障诊断的准确定位。通过研究分布式采集故障行波的方法,获取准确的行波信号;结合行波波速的在线测量值,探讨造成测距误差的相关因素,并设计建立了输电线路故障诊断系统。该系统2012年在广西电网某110kV输电线路进行安装应用,成功实现了对该线路的故障定位和原因辨识,达到了预期效果。
The attenuation and distortion phenomenon of traveling wave which influence the accuracy of transmission line traveling wave fault location are studied to realize the accurate location in transmission line fault diagnosis. The distributed fault traveling wave acquisition method is studied to acquire accurate traveling wave signal. Factors that cause the range error are discussed combining with the on-line measurement values of traveling wave speed. The transmission line fault diagnosis system is designed and developed. The system has been installed and applied in a certain 110 kV transmission line in Guangxi power grid in 2012, which realize successfully the fault location and reason identification and achieve the expected effect.
出处
《广西电力》
2013年第6期1-4,共4页
Guangxi Electric Power
关键词
输电线路故障
分布式测量
行波测距
transmission line fault, distributed measurement, traveling wave location
