| 短时电压变动的小波变换模极大值奇异性检测方法 |
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| 引用本文： | 刘桂英,刘承员,粟渊恺.短时电压变动的小波变换模极大值奇异性检测方法[J].长沙理工大学学报(自然科学版),2009,6(2):44-50. |
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| 作者姓名： | 刘桂英 刘承员 粟渊恺 |
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| 作者单位： | 1. 长沙理工大学,电气与信息工程学院,湖南,长沙,410004
2. 惠州市新科创工程建设监理有限公司,广东,惠州,516001 |
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| 基金项目： | 湖南省教育厅科研项目 |
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| 摘 要： | 针对短时电压变动的特征,探讨了基于小波变换的模极大值奇异性的短时电压变动实时检测方法及其实现过程,并利用MATLAB对线路发生短时电压变动进行了仿真.仿真结果表明,利用小波变换模极大值奇异性法,可以实时、精确、有效检测短时电压变动信号发生时间、结束时间和幅值及瞬时值.
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| 关 键 词： | 短时电压变动 小波变换 模极大值 奇异性 检测 |
Detecting of short duration voltage variation based on module maxima and singularity of wavelet transform |
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| LIU Gui-ying,LIU Cheng-yuan,SU Yuan-kai.Detecting of short duration voltage variation based on module maxima and singularity of wavelet transform[J].Journal of Changsha University of Science and Technology:Natural Science,2009,6(2):44-50. |
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| Authors: | LIU Gui-ying LIU Cheng-yuan SU Yuan-kai |
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| Institution: | 1.School of Electrical and Information Engineering;Changsha University of Science andTechnology;Changsha 410004;China;2.Huizhou Xinkechuang Project ManagementCompany;LTD.;Huizhou 516001;China |
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| Abstract: | Considering the characteristics of short duration voltage variations,a method based on module maxima and singularity of wavelet transform is proposed to detect the short duration voltage variation in real time on account of its outstanding time frequency localization characteristics.The implement processes of real-time detecting of the short duration voltage variation based on module maxima and singularity of wavelet transform are introduced and some simulations of real-time detecting of short duration volt... |
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| Keywords: | short duration voltage variation wavelet transform modulo-maxima singularity detecting |
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