一种基于单端数据输电线路单相接地故障测距新算法

A novel algorithm for locating phase-to earth faults of the transmission line based on one terminal data

实现快速简单的输电线路故障测距是电力系统亟待解决的问题,文章针对输电线路单相接地故障提出了一种新的算法,该算法是基于单端的故障录波器采样电压、电流数据实现故障定位,其在分析了单相接地故障网络和正、负及零序网的基础上提出的一种适合于直接接地系统的单相接地故障模型的算法。该算法不受故障过渡电阻、负荷阻抗以及系统运行方式的影响,可获得待求的故障距离。

The fast and simple fault location of transmission line is a problem to be urgently solved.A novel algorithm for locating phase-to-earth faults of the transmission line is presented based on the voltage and current data from one end of the faulty line.The authors make an analysis of the faulty network and sequence networks,and derive a model of locating faults for a direct ground neutral system.The method can locate faults,but not be affected by fault resistant、load resistant and method of operation.It can ...