| 基于多分辨率分析的电能质量扰动信号的检测 |
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| 引用本文： | 张晓冰,崔家瑞,梁原华.基于多分辨率分析的电能质量扰动信号的检测[J].哈尔滨理工大学学报,2007,12(3):27-29,32. |
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| 作者姓名： | 张晓冰 崔家瑞 梁原华 |
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| 作者单位： | 哈尔滨理工大学,测控技术与通信工程学院,黑龙江,哈尔滨,150040 |
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| 摘 要： | 本文提出了基于时-频技术的小波分析对电力系统暂态和畸变信号的识别方法,采用了具有无限可导性、双正交性和没有频带混叠现象的Meyer小波基函数.该方法可以很精确地检测畸变信号产生的时刻和持续时间.给出了几个电能质量畸变信号的仿真试验,证实了该方法的准确性.
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| 关 键 词： | 电能质量 小波分析 Meyer函数 畸变信号 随机过程 |
| 文章编号： | 1007-2683（2007）03-0027-03 |
| 修稿时间： | 2006-06-16 |
Detection of Power Quality Disturbance Based on Multi - resolution Analysis |
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| ZHANG Xiao-bing,CUI Jia-rui,LIANG Yuan-hua.Detection of Power Quality Disturbance Based on Multi - resolution Analysis[J].Journal of Harbin University of Science and Technology,2007,12(3):27-29,32. |
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| Authors: | ZHANG Xiao-bing CUI Jia-rui LIANG Yuan-hua |
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| Abstract: | This paper presents a wavelet analysis based time-frequency technique to identify power system transients and disturbances.A mother wavelet basis function(Meyer) with infinite differentiability and biorthogonal non-overlapping frequency bands has been used.The advantage of the proposed approach is in identification of the occurrence and duration of the disturbances.Some power signals with power quality disturbances have been analyzed to show the effectiveness of the proposed technique. |
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| Keywords: | power quality wavelet analysis Meyer function distortion stochastic proccess |
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