分布式故障诊断系统在特高压输电线路中的应用-内蒙古电力技术.PDF

内蒙古电力技术 2018 年第36 卷第6 期 INNER MONGOLIA ELECTRIC POWER 81 doi:10.3969/j.issn. 1008-6218.2018.06.013 分布式故障诊断系统在特高压输电线路中的应用 李博亚，吴坤祥，汪丽波，刘红鑫 （国网浙江省电力有限公司检修分公司，杭州 311232） 摘要：介绍了分布式故障诊断装置的技术原理及功能特点。该装置利用分布式行波定位 技术，在特高压输电线路遭受雷击、风偏、异物等影响发生故障跳闸时，能够诊断故障发生位 置，帮助确定故障杆塔；同时通过分析故障电流波形，可判别故障类型，有效提升故障巡检工 作效率和输电线路运维水平。 关键词：特高压输电线路；故障诊断；分布式故障诊断系统；行波定位；杆塔 文献标志码：B 中图分类号：TM755 文章编号：1008-6218（2018 ）06-0081-05 Application of Distributed Fault Diagnosis System in UHV Transmission Lines LI Boya, WU Kunxiang, WANG Libo, LIU Hongxin （Mainenance Company of State Grid Zhejiang Electric Power Co.,Ltd., Hangzhou 311232, China） Abstract ：The technical principle and functional characteristics of distributed fault diagnosis device was introduced. Using distributed traveling wave location technology, the device could diagnose the fault location and help determining the fault tower when the UHV transmission line was tripped due to lightning stroke, wind deviation, foreign body and so on. At the same time, by analyzing the fault current waveform, the fault type could be distinguished, and the efficiency of fault inspection and maintenance level would be effectively improved. Key words ：UHV transmission line; fault diagnosis; distributed fault diagnosis system; traveling wave location; tower 0 引言 输电线路发生故障时快速测定故障距离，准确锁定 [4-5] 故障点，有效提高特高压输电线路的运维效率 。 特高压输电线路作为远距