摘要
应用综合矢量的概念，提出了一种判别高压输电线路故障方向的新算法，在较短的数据窗内计算出电压、电流的相位差，从而达到判断故障方向的目的。该继电器的动作速度快于常规的基于工频电气量的方向保护，其可靠性优于行波方向保护，且具有较高的灵敏度。
A new algorithm of ultra high speed directional relay for high voltage transm ission lines is proposed based oncom prehensive vector and sym m etrical com ponent m ethods. The direction of fault can be judged by calculating the phasedifference betw een voltage and current in a shorter data w indow . The protection speed of the relay is faster than theconventional directional protection based on pow er frequency. Its reliability is higher than the travelling w ave basedprotection. It has high sensitivity.
出处
《电力系统自动化》
EI
CSCD
北大核心
1999年第18期20-24,共5页
Automation of Electric Power Systems
关键词
方向继电器
继电保护
线路保护
电力系统
算法
directionalrelay com prehensive vector pow er frequency fault com ponent
