摘要
根据电力系统电磁暂态信号的特点和小波分析的多尺度分辨分析能力 ,提出了基于小波分析的电力系统电磁暂态信号压缩方法。为了便于讨论压缩比RC、赋范均方误差FC 与压缩级数J的关系 ,本文绘出了RFJ曲线 ,并据此比较了几种小波基对暂态信号压缩的影响 ,说明bior3小波是一种比较理想的小波基。
In view of the features of electromagnetic transient signal in power system and the wavelet analysis capability, a compression method of electromagnetic transient signal in power system is proposed based on wavelet analysis. In order to present the relationship among the compression ratio, norm mean square error and compression grade clearly, their curves are drawn out and the effect of wavelet base on compression of transient signal is compared based on the curves which show that the wavelet bior3 is a good wavelet base.
出处
《继电器》
CSCD
北大核心
2001年第7期5-8,共4页
Relay
