| 基于插值FFT和多信号分类法的间谐波参数检测 |
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| 引用本文： | 邵英,李晓明,张晓明.基于插值FFT和多信号分类法的间谐波参数检测[J].海军工程大学学报,2011(4):53-59. |
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| 作者姓名： | 邵英 李晓明 张晓明 |
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| 作者单位： | 武汉大学电气工程学院;海军工程大学电气与信息工程学院;92854部队; |
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| 摘 要： | 为了在短数据且存在白噪声的情况下检测大幅度谐波附近的小幅度间谐波,提出了采用插值FFT和多信号分类法(MUSIC)相结合的间谐波参数检测方法.首先,利用加Hanning窗的插值FFT检测出信号中的主要频率成分;然后,从原信号中减去这部分信号,利用MUSIC方法对剩余信号进行频率检测,得到的两部分频率即认为是原信号中包含...
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| 关 键 词： | 插值FFT算法 多信号分类法 间谐波 电能质量 |
Interharmonics parameter detection based on interpolation FFT and multiple signal classification algorithms |
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| SHAO Ying,LI Xiao-ming,ZHANG Xiao-ming.Interharmonics parameter detection based on interpolation FFT and multiple signal classification algorithms[J].Journal of Naval University of Engineering,2011(4):53-59. |
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| Authors: | SHAO Ying LI Xiao-ming ZHANG Xiao-ming |
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| Institution: | SHAO Ying1,2,LI Xiao-ming1,ZHANG Xiao-ming3 (1.College of Electrical Engineering,Wuhan Univ.,Wuhan 430072,China,2.College of Electrical and Information Engineering,Naval Univ.of Engineering,Wuhan 430033,3.Unit No.92854,Zhanjiang 524005,China) |
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| Abstract: | To detect interharmonics with low amplitude near to harmonics with high amplitude under white noise condition with short-duration data,a method based on interpolation FFT algorithm and multiple signal classification(MUSIC) algorithm was presented.Firstly,the primary frequency components of signal were extracted from sampled signal by interpolation FFT algorithm with Hanning window.Then,the residual signal was derived by subtracting the main frequency components of signal from sampled signal,and the frequenc... |
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| Keywords: | interpolation FFT algorithm multiple signal classification interharmonics power quality |
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