电网技术2016，Vol.40Issue(6)：1886-1892,7.DOI:10.13335/j.1000-3673.pst.2016.06.040
基于主动扰动技术的谐振接地系统单相接地故障测距方法
A New Approach for Fault Location in Resonant Grounded System Based on Active Disturbance Technology
摘要
Abstract
In recent years, power electronic device, for its controllability and promptness, is applied to switch Petersen-coil components, such as damping resistorsand compensation capacitors. In view of Petersen-coils with power electronic switches, this paper presents a novel method to measure fault distance during single-phase-to-ground fault in resonant grounded system. By controlling power electronic switches of Petersen-coil, a voltage and current signal will appear atexit endof faulted feeder and can be extracted to locatefault. Because of abundant frequenciesin disturbance, the method caneliminateinfluences of ground resistance, feeder capacitance to ground and measurement errorappearing commonlyunder single frequency. Theoretical results, simulated analysis and lab experiments confirm effectiveness of this method.关键词
消弧线圈/晶闸管/阻尼电阻/扰动/故障测距Key words
petersen-coil/thyristors/damping resistance/disturbance/fault location分类
信息技术与安全科学引用本文复制引用
朱珂,倪建,张荣华..基于主动扰动技术的谐振接地系统单相接地故障测距方法[J].电网技术,2016,40(6):1886-1892,7.基金项目
山东省自然科学基金资助项目(ZR2013EEM026)。Project Supported byShandong Provincial Natural Science Foundation (ZR2013EEM026) （ZR2013EEM026）
