小波变换应用于电力系统故障信号分析初探  

The Application of Wavelet Transform to Power System Fault Signal Analysis

作　　者：董新洲[1,2] 耿中行[1,2] 葛耀中[1,2] 张伏生 徐丙垠[1,2] 

机构地区：[1]西安交通大学 [2]山东淄博科汇电气有限公司

出　　处：《中国电机工程学报》1997年第6期421-424,共4页Proceedings of the CSEE

基　　金：国家教委博士点基金

摘　　要：简述了小波变换及应用特点，结合电力系统发生故障后各电气量的变化特征探索了小波变换在滤波消噪、故障录波器数据压缩、继电保护及故障测距等方面应用的可能性，并对小波变换奇异性检测理论实现行波故障测距进行了ＥＭＴＰ仿真验证，结果表明该方法是有效的。Wavelet transform and its applied characteristics are introduced.The possibility of its application to power system fault signal analysis is discussed in five aspects:filtering,noise elimination,fault recorder data compression,fault detection and fault location based on travelling waves.An example of fault location based on travelling wave by using “Singularity detection of wavelet trausform” is given.The simulation result shows that the wavelet transform is effective.

关 键 词：小波变换 故障测距 电力系统 故障信号分析 

分 类 号：TM732[电气工程—电力系统及自动化] O177.6[理学—数学]