文献类型：期刊文献

中文题名：基于瞬时值对称分量变换的变压器快速方向保护

英文题名：Principle of Transformer Fast Direction Protection Based on Transformation of the Instantaneous Value Symmetry Component

作者：古斌[1,2];梁志坚[1];谭建成[1];蒋道乾[3]

机构：[1]广西大学电气工程学院,广西壮族自治区南宁市530004;[2]绍兴文理学院工学院,浙江省绍兴市312000;[3]云南昭通供电局,云南省昭通市657000

年份：2008

卷号：32

期号：8

起止页码：78

中文期刊名：电力系统自动化

外文期刊名：Automation of Electric Power Systems

收录：CSTPCD、、EI(收录号：20082111273226)、北大核心2004、Scopus(收录号：2-s2.0-43749108404)、CSCD2011_2012、北大核心、CSCD

语种：中文

中文关键词：变压器保护;瞬时值对称分量变换;故障分量;正序空间向量;方向元件;内部故障

外文关键词：transformer protection; transformation of the instantaneous value symmetry component; fault component; positive sequence space vector; direction component; internal fault

中文摘要：应用瞬时值对称分量变换,可提取电压、电流故障分量的正序空间向量。推导了基于电压、电流故障分量的正序空间向量的故障方向判据。理论分析及仿真实验表明该方向元件可在较短的数据窗内做出故障方向判定,从而确定是否区内故障,大大缩短了变压器区内外故障判断时间,辅以快速涌流判据,可极大地提高切除各种情况下变压器内部故障的速度。

外文摘要：The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived. This paper deduces the determinant criterion of the fault direction based on the positive sequence space vector. The algorithm is proved to determinate the fault direction in short data window by theory analysis and simulation experiment, then to determinate to be internal fault or not. The algorithm can shorten the time to judge internal fault or external fault greatly, and can enhance the velocity of clearing up all the internal fault assisted by fast inrush criterion.