中南大学学报（自然科学版）2016，Vol.47Issue(5)：1606-1612,7.DOI:10.11817/j.issn.1672-7207.2016.05.021
电力电缆的自清除瞬时故障测距研究
Researchon self-clearing transient fault location for power cable
摘要
Abstract
Considering thatthe self-clearing cable transient faults are difficulttobedetectedby traditional over current protection relays,a method for locating single phase to ground transient faultswas proposedbased on current and voltage measurements of apower cable. By establishingthemodel for cable fault system, both distance and fault resistancewere estimated.The fault location techniquewas based on solving a system of differential equations during the fault event, by using nonnegative least square fitting method.Thestatistical tools and observation history measurement recordswere used tomake fault handling decisions. Finally the algorithmwastested by using ATP/EMTP simulation software, and the proposed fault locating algorithmwasvalidatedwith a small distributionnetwork.The results show that the algorithm has high accuracy,andprovides a new wayfor transientfaultlocation.关键词
故障测距/最小二乘法/自清除瞬时故障Key words
fault location/theleast square fitting/self-clearing transient fault分类
信息技术与安全科学引用本文复制引用
成志威,夏向阳,李明德,陈善求,王恺,黄海,王瑞琪,唐洁,黄珂琪..电力电缆的自清除瞬时故障测距研究[J].中南大学学报（自然科学版）,2016,47(5):1606-1612,7.基金项目
湖南省自然科学基金资助项目(2016JJ5018)(Project(2016JJ5018)@@@@supported by the Natural Science Foundation of Hunan Province) （2016JJ5018）
