电测与仪表Issue(12)：77-82,6.
一种基于暂态电流的故障测距方法
A fault location method based on transient current
摘要
Abstract
It plays a very important role on the power system stability to detect the transmission line fault location ac-curately.Through using transient current signal, this paper presents a transmission line fault location detection method for the three-phase fault which based on the R-L transmission line model.In the method, it firstly filters out the fundamental frequency component of the current signal when the voltage dips.Secondly, it changes the processed cur-rent signal into absolute value, and then disposes the current signal through logarithmic transformation.Finally, after the logarithmic transformation, and the slope is obtained by mean of the data.According to the slope, transmission line fault location could be detected.Simulation results show that the method can easily and efficiently detect transmis-sion line fault location.The method has the prospect of application and promotion.关键词
故障测距/电压凹陷/电力系统Key words
fault location/voltage dip/power system分类
信息技术与安全科学引用本文复制引用
程志友,葛昕,王年,王雪菲..一种基于暂态电流的故障测距方法[J].电测与仪表,2015,(12):77-82,6.基金项目
安徽省自然科学基金资助项目（120808QF104）；安徽大学研究生学术创新研究项目支持 （）
