高电压技术2012，Vol.38Issue(8)：1965-1972,8.
架空输电线路跳闸故障智能诊断
Intelligent Trip-out Fault Diagnosis of Overhead Transmission Line
摘要
Abstract
The intelligent diagnosis of transmission line,including identification of nature of failure and accurate positioning of faults on overhead transmission line,is described,in which identification of nature of failure includes identification of failure by lightning and non-lightning,and accurate positioning of fault is based on a positioning method of distributed traveling wave monitoring technology.The method adopts the equivalent velocity of current wave by on-line measurement to reduce the sag,distortion of the first wave,and other errors.Basing on the theory,we developed a transmission line fault intelligent diagnosis system,which was applied to the Guangdong Power Grid.By comparing the substation fault recorder and lightning location system fault diagnosis,we analyzed superiority of the system in terms of the fault cause identification and fault location.The actual operation shows that fault diagnosis system plays an important role in fault interval orientation,accurate positioning,fault point search,fault cause guidance and lightning protection analysis.关键词
架空输电线路/故障诊断/精确定位/线路跳闸/分布式行波监测/雷击故障/非雷击故障Key words
overhead transmission line/fault diagnosis/accurate positioning/line trip-out/distributed traveling wave monitoring/lightning strike fault/non lightning strike fault分类
信息技术与安全科学引用本文复制引用
彭向阳,钱冠军,李鑫,高峰..架空输电线路跳闸故障智能诊断[J].高电压技术,2012,38(8):1965-1972,8.基金项目
中国南方电网公司重点科技项目 （）
