电测与仪表Issue(5)：67-72,6.
一种基于 LMD-DE 的输电线路行波检测方法
A detection method for traveling wave in transmission line based on local mean decomposition and the difference-entropy method
摘要
Abstract
In order to further improve the transmission line traveling wave fault location accuracy , a detection method for traveling wave in transmmision line based on LMD and DE is proposed in this paper .First, the PF component of the decomposed signal is obtained with LMD; second , the signal mutation quantity information is received with the help of DE to determine the arriving time of the voltage traveling wave head;and last , the fault distance is calculated by double terminal traveling wave fault location principle .After simulating with different malfunction conditions , and comparing it with the wavelet transform and the Hilbert Huang Transform , the results show a better adaptability , and a higher positioning accuracy compared with the other traditional method .关键词
故障定位/行波/局域均值分解/差分熵Key words
fault location/traveling wave/local mean decomposition/difference-entropy分类
信息技术与安全科学引用本文复制引用
贾惠彬,张国云..一种基于 LMD-DE 的输电线路行波检测方法[J].电测与仪表,2015,(5):67-72,6.基金项目
河北省自然科学基金资助项目（ E2013502267）；中央高校基本科研业务费（13MS68）。 （）
