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电网技术  2009 

基于广义S变换的短时电能质量扰动信号分类

, PP. 22-27

Keywords: 短时电能质量扰动,广义S变换,统计分析,分类树

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Abstract:

提出一种基于广义S变换的短时电能质量扰动信号分类方法。首先对短时电能质量扰动信号进行广义S变换,得到模矩阵,再从模时频矩阵中提取5种统计量特征值,然后利用决策树对扰动信号进行归类,从而实现对短时电能质量扰动信号的自动分类。仿真结果表明,该方法识别正确率高,且对噪声不敏感,适用于实际电网电能质量扰动信号的分析。

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