摘要
针对树形配电线路特点，选取适当频率的正弦诊断信号，建立分布参数电路模型。相间短路故障后，在线路始端和所有末端分别施加正弦诊断信号，并检测激励所在端口的电压电流相量，以此实现故障分支的识别和短路点的定位，大量的计算机仿真和在仿真线上的实验表明，本方法有效。
A distributed parameter circuit model is constructed according to characteristics of the radial distribution network and selection of appropriate frequency detection signal.This paper presents a method that sinusoid detection signal is given one after another at all measurable terminals after S.C.between two phases.By the way of voltage and current phasors at all measurable terminals detected,not only fault-branch identification but also fault location is completed.A lot of fault diagnosis simulation by computer and on fault model lines shows the method presented in the paper is effective.
出处
《继电器》
CSCD
1998年第6期9-11,43,共4页
Relay
关键词
树形
配电线路
相间短路
故障诊断
输电线路
Fault location Radial distribution network Distributed parameter model Fault diagnosis
