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投稿时间：2010-10-15
投稿时间：2010-10-15
中文摘要: 阐述小波变换和小波包变换的基本原理,介绍小波变换的时频局部化特性,说明了在小波变换基础上建立的小波包变换,能够实现频带的均匀划分,能更有效地进行谐波的检测和分析,并利用小波包变换的方法分别对电力系统中的稳态谐波和暂态谐波进行检测.仿真结果表明,该方法可以准确地检测稳态和暂态时变信号,能为电力系统中的谐波治理提供依据.
Abstract:The principles of wavelet transform and wavelet packet transform are presented,and then the wavelet transform characteristics are introduced.Finally,stationary harmonics and transient harmonics in power system are detected by wavelet packet transform.The simulation results show that harmonics can be detected accurately in the proposed method,which provides support for harmonic analysis in power system.
keywords: harmonic detection wavelet transform wavelet packet transform power system power quality detection
文章编号：20110406 中图分类号： 文献标志码：
基金项目:上海市教育委员会重点学科建设项目(J51303)
| 作者 | 单位 | |
| 刘蓉晖 | 上海电力学院电力与自动化工程学院, 上海 200090 | liuronghuiyzy@126.com |
| Author Name | Affiliation | |
| LIU Rong-hui | School of Electric Power and Automation Engineering, Shanghai University of Electirc Power, Shanghai 200090, China | liuronghuiyzy@126.com |
引用文本：
刘蓉晖.基于小波包变换的电力系统谐波检测[J].上海电力大学学报,2011,27(4):337-340.
LIU Rong-hui.Detection of Power System Harmonics Based on Wavelet Packet Transform[J].Journal of Shanghai University of Electric Power,2011,27(4):337-340.
刘蓉晖.基于小波包变换的电力系统谐波检测[J].上海电力大学学报,2011,27(4):337-340.
LIU Rong-hui.Detection of Power System Harmonics Based on Wavelet Packet Transform[J].Journal of Shanghai University of Electric Power,2011,27(4):337-340.