电力系统保护与控制2011，Vol.39Issue(1)：35-39,5.
与波速无关的输电线路双端行波故障测距研究
Study of fault locating for transmission line double terminal traveling waves unrelated to wave speed
尹晓光 1宋琳琳 1尤志 1朱子钊2
作者信息
- 1. 西南交通大学电气工程学院,四川,成都,610031
- 2. 昆明理工大学电力工程学院,云南,昆明,650051
- 折叠
摘要
Abstract
An accurate fault locating method based on existing double-terminal traveling waves fault location principle is presented,which avoids the influence of traveling wave speed. This method uses wavelet transform to analyze traveling wave signals and determine the arrival time of the fault initial traveling waves and the reflected wave from the point of failure reaching both ends of bus bar. Then a group of equations involving distance, time and velocity is solved and the fault location formula unrelated to wave speed is obtained. In theory this method avoids the wave speed influence, and has high accuracy in fault location. The Matlab software simulative results prove its validity and correctness.关键词
行波/波速/故障测距/小波变换Key words
traveling waves/ wave speed/ fault location/ wavelet transform分类
信息技术与安全科学引用本文复制引用
尹晓光,宋琳琳,尤志,朱子钊..与波速无关的输电线路双端行波故障测距研究[J].电力系统保护与控制,2011,39(1):35-39,5.
