基于动态小波变换的电力系统故障信号分析  

Failure signal analysis in power systems based on dynamic wavelet transform

作　　者：黄群古 任震[2] 黄雯莹[2] 

机构地区：[1]广电集团中山供电分公司 [2]华南理工大学电力学院

出　　处：《继电器》2006年第3期20-23,共4页Relay

摘　　要：提出了基于动态小波变换的电力系统故障分析方法,既充分利用了小波变换在电力系统故障信号分析中的优点,又克服了分析中傅里叶算法的不足。该方法简单、可靠,便于形成实时软件,对于提高电力系统故障检测水平和保护性能具有重要意义。In this paper, a method of failure analysis in power systems based on dynamic wavelet transform is presented. It well makes use of the advantages of a wavelet transform in failure signal analysis in power systems, and then overcomes the shortage of failure analysis by using Fourier calculation way in signal analysis. The method is simple, dependable, and easy to form real-time software. It is important to heighten the of level of fault detecting and the capability of microcomputer-based protection in power system.

关 键 词：动态 小波变换 电力系统 故障分析 

分 类 号：TM711[电气工程—电力系统及自动化]