| 基于小波理论的电力系统谐波检测方法 |
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| 引用本文： | 雷景生,郝珈玮.基于小波理论的电力系统谐波检测方法[J].上海电力学院学报,2016,32(1):66-72. |
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| 作者姓名： | 雷景生 郝珈玮 |
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| 作者单位： | 上海电力学院 计算机科学与技术学院, 上海 200090,上海电力学院 计算机科学与技术学院, 上海 200090 |
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| 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.
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| 关 键 词： | 小波变换 Mallat算法 小波包变换 电力系统 谐波检测 |
| 收稿时间： | 2015/4/28 0:00:00 |
Detection of Harmonic in Power System Based on Wavelet Theory |
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| LEI Jingsheng and 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. |
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| Authors: | LEI Jingsheng and HAO Jiawei |
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| Affiliation: | School of Computer and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China and School of Computer and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China |
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| 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. |
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| Keywords: | wavelet transform Mallat algorithm wavelet packet transform power system harmonic detection |
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