摘要
提出了半小波函数及其相应的半小波变换。因半小波函数具有很好的时域特性 ,故以半小波分析检测故障信号特征的速度要比常规小波变换快一倍 ;利用半小波变换对电力系统某些故障信号进行了分析 ,并与其他小波变换进行了比较。其结果证明了半小波变换方法是一种非常有效的快速方法 ,因而 ,在提高电力系统的运行水平和供电质量方面 。
In this paper, half wavelet functions and related half wavelet transforms are presented. Half wavelet functions have good time domain characteristics. In fault signal processing, the algorithm speed based on half wavelet transforms is as twice as original wavelet transforms. Moreover, by using half wavelet transforms, some fault signals in power systems are analyzed. By comparison, it is shown that half wavelet transform is an effective as well as fast method in signal analysis by means of wavelet transforms, and so it is of important social and economic fruits in the way of heightening operation level of power system and improving power quality.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2001年第7期31-34,共4页
Proceedings of the CSEE
基金
国家自然科学基金资助项目 (5 0 0 770 0 8)
广东省自然科学基金资助项目 (980 6 0 8)&&
