配电网故障区段诊断改进矩阵算法研究  

Improved Matrix Algorithm for Fault Location in Power Distribution Network

作　　者：李静一[1] 肖保明[2] 周正贵[1] 

机构地区：[1]三峡大学电气信息学院,宜昌443002 [2]华北电力大学(北京)电力工程系,北京102206

出　　处：《现代电力》2004年第1期50-54,共5页Modern Electric Power

摘　　要：针对现有配电网故障区段矩阵算法不适用于末端故障且运算量大的缺点 ,本文经过研究得到改进算法。用配电网中开关的连接关系和假定方向建立网络描述矩阵D ,从FTU采集的故障过电流及其方向信息而生成故障判别矩阵FJ ,根据FJ中相关元素的值和对应的判据 ,该算法可快速、准确地诊断配电网末端故障和不同线路上的多故障以及多电源复杂配电网的故障。The update matrix algorithm for fault location is not adaptable to multi fault of different line ,and is of grent computation. An improved algorithm was studied in this paper. Throngh the connection of the switches and the supposed current directions for distribution network the net describing matrix D was built. From FTU collected information of fault overcurrents and the directions the fault judgments matrix FJ was produced. According to the values of the related elements in the FJ and correspondent criterion, the end fault of distribution network, multi fault of different line and fault of multi power source for complicated distribution network, can be diagnosed quickly and precisely.

关 键 词：配电网 故障定位 矩阵算法 故障诊断 馈线自动化 配电自动化 

分 类 号：TM727[电气工程—电力系统及自动化]