单相补偿式接地距离继电器统一形式的研究  

THE UNIFORM FORMULA OF EARTH FAULT DISTANCE RELAY WITH SINGLE-PHASE COMPENSATION

作　　者：李岩[1] 詹奕[1] 陈德树[1] 尹项根[1] 

机构地区：[1]华中科技大学电力系,湖北省武汉市430074

出　　处：《电力系统自动化》2002年第10期28-31,共4页Automation of Electric Power Systems

摘　　要：高压输电线路最常见的故障是单相接地故障。为了提高距离继电器对单相接地故障的灵敏反应能力 ,简化继电器的表达方式 ,通过分析接地距离继电器的极化量 ,提出了单相补偿式接地距离继电器的统一形式。通过改变其中参数便可构成 1 0多种常用的单相接地距离继电器。统一形式的提出有利于继电器的原理分析 ,也为继电器的现场应用提供了灵活性 ,同时为研制新的继电器提供了基础。介绍了以统一形式为基础设计出的两种新型接地距离继电器。仿真证明 ,提出的新型接地距离继电器比现有的一些继电器具有更好的性能。The single- phase earth fault is the most comm on fault for high voltage transm ission line. In order to improve the sensitivity of ground distance relays for the single- phase fault,and to simplify the formulation of conventional relays,one uniform formula is suggested to express all the ground distance relays with one phase polarization through the analysis of the polarization of different relays.More than ten kinds of relays in wide use can be expressed in the uniform form ula just by changing the factors. The uniform formula is helpful to analyze the performance of these relays and to create new high perform ance relays with flexibility in actual use. Furtherm ore,two new relays based on the uniform formula are also proposed. Sim ulations show that these new relays have better performance than those old ones. At last,the basic fundam ental about the choice of polarization is discussed.新型偏磁式消弧线圈及其控制

关 键 词：单相补偿式 接地距离 继电器 继电保护 高压输电线路 电力系统 

分 类 号：TM588[电气工程—电器] TM773