中国电机工程学报2012，Vol.32Issue(13)：110-115,6.
基于线电压和零模电流的小电流接地故障暂态定位方法
Transient Fault Locating Method Based on Line Voltage and Zero-mode Current in Non-solidly Earthed Network
摘要
Abstract
In order to solve the fault location problem of single phase grounding fault in non-solidly earthed distribution network, a new fault location method based on transient component of line voltage and zero-mode current was presented. This method is realized by the feeder automation （FA） system and does not require additional equipment. The product of transient line voltage after Hilbert transformation and transient zero-mode current is defined as the parameter of fault direction, calculated by the feeder terminal unit （FTU）. The fault section is located by master station according to opposite polarity of direction parameter before and after fault point. The algorithm of detecting single phase grounding fault and confirming the fault phase was introduced. Results of digital simulation and experiment demonstrated the accuracy and feasibility of this method.关键词
故障定位/小电流接地配网/暂态分量/线电压/馈线终端Key words
fault location/non-solidly earthed distribution network/transient component/line voltage/feeder terminal unit (FTU)分类
信息技术与安全科学引用本文复制引用
张林利,徐丙垠,薛永端,高厚磊..基于线电压和零模电流的小电流接地故障暂态定位方法[J].中国电机工程学报,2012,32(13):110-115,6.基金项目
国家863高技术基金项目 （）
国家自然科学基金项目（51077090,51177096）. （）
