摘要
基于对配电网络输电线路发生的单相接地故障时的零序电压、零序电流进行实时分析,提出基于零序电流的故障定位方法适用于中性点不接地系统发生配电网单相接地故障。期间详细介绍了零序电压、零序电流的产生原理和相关特性,并提出零序电流采集系统的基本结构、对零序电流的滤波以及放大处理,分析了零序电流相位的提取和计算,总结了应用零序电流在故障定位中的应用前景。
Based on the zero sequence voltage and zero sequence current of the single phase to earth fault in the transmission line of the power distribution network,a fault location method is proposed based on zero sequence current,which is suitable for the single phase earth fault in the system of neutral point grounding. The generation principle and correlation characteristics of zero sequence voltage and zero sequence current are introduced in detail,and basic structure of the zero sequence current acquisition system and the filtering of the zero sequence current are presented. The extraction and calculation of the phase of zero sequence current is analyzed. Finally,the application prospect of the application of the grounding fault detecting system of the zero sequence current is summarized.
出处
《电气传动自动化》
2016年第1期51-54,共4页
Electric Drive Automation
关键词
配电网
单相接地故障
零序分量
故障检测与定位
distribution network
single phase grounding fault
zero sequence component
fault detection and location
