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投稿时间：2015-04-28
投稿时间：2015-04-28
中文摘要: 提出了对电力系统中稳态谐波和暂态谐波的不同检测方法.阐明了小波理论的基本原理,对复合信号进行了小波变换和小波包变换的仿真分析和比较.仿真结果表明,对稳态谐波检测时适合采用小波变换,对暂态谐波检测时适合采用小波包变换.
Abstract:In power systems,different detection methods in terms of stationary harmonic and the different duration are proposed. The principles of wavelet theory are presented.According to the simulation,stationary harmonics detected by wavelet transform are more applicable than wavelet packet transform,while the result of the detection on transient harmonics by wavelet packet transform is better than wavelet transform. Using wavelet transform for stationary harmonic detection and wavelet packet transform for transient harmonic detection is feasible.
keywords: wavelet transform Mallat algorithm wavelet packet transform power system harmonic detection
文章编号：20160115 中图分类号： 文献标志码：
基金项目:
引用文本：
雷景生,郝珈玮.基于小波理论的电力系统谐波检测方法[J].上海电力大学学报,2016,32(1):66-72.
LEI Jingsheng,HAO Jiawei.Detection of Harmonic in Power System Based on Wavelet Theory[J].Journal of Shanghai University of Electric Power,2016,32(1):66-72.
雷景生,郝珈玮.基于小波理论的电力系统谐波检测方法[J].上海电力大学学报,2016,32(1):66-72.
LEI Jingsheng,HAO Jiawei.Detection of Harmonic in Power System Based on Wavelet Theory[J].Journal of Shanghai University of Electric Power,2016,32(1):66-72.