内蒙古电力技术2024，Vol.42Issue(3)：68-73,6.DOI:10.19929/j.cnki.nmgdljs.2024.0042
基于双数据源的直流输电线路故障测距方法
Method of DC Transmission Line Fault Location Based on Double Data Source
摘要
Abstract
This paper introduces the principle,characteristics and application status of various fault location methods for DC transmission lines,including double ended traveling wave method,single ended traveling wave method and time-domain fault analysis method.A comprehensive method for fault location of DC transmission line is proposed in this paper,which combines time domain fault analysis method with traveling wave method,aiming to solve the issues of relatively low reliability of data sources of the traveling wave method and low accuracy of fault location for the time domain method in the practical engineering application.Using dual data sources including high-speed and low-speed data,possible fault points are calculated using single ended traveling wave method/time-domain method,and fault points are determined by filtering the amplitude and polarity characteristics of wavelet transform modulus maximum.The accuracy advantage of single ended traveling wave method is combined with the reliability advantage of time-domain method.Through EMTDC simulation,the validity of the method is verified in this paper.关键词
直流输电线路/双数据源/故障测距/时域法/行波法/时域故障分析法Key words
DC transmission line/double data source/fault location/time domain method/traveling wave method/time domain fault analysis method分类
动力与电气工程引用本文复制引用
阚光强,杨勇波,鲜永辉..基于双数据源的直流输电线路故障测距方法[J].内蒙古电力技术,2024,42(3):68-73,6.基金项目
湖南省自然科学基金青年项目"新型磁场可调整子轴向励磁高速永磁飞轮储能电机研究"(2021JJ40099) （2021JJ40099）
