| 一种电能质量扰动信号的分层识别新方法 |
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| 引用本文： | 王丽霞,何正友,戴铭,赵静,钱清泉.一种电能质量扰动信号的分层识别新方法[J].电力系统自动化,2009,33(24):65-69. |
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| 作者姓名： | 王丽霞 何正友 戴铭 赵静 钱清泉 |
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| 作者单位： | 西南交通大学电气工程学院,四川省成都市,610031 |
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| 摘 要： | 为了快速准确地对电能质量扰动进行分类和识别,结合时域和频域分析方法,提出了一种新的电能质量分层分类识别新方法.该方法由基波和扰动分离模块、扰动时间特征提取分类模块等多个功能模块构成,通过将dq变换、广义形态滤波、傅里叶变换等计算简单的信号分析方法相结 合,逐层提取出幅值、扰动时间、扰动频域奇异熵等特征并对其进行分类,最后依据各层分类结果对信号的扰动类型进行综合识别.对7种常见的单一电能质量扰动及部分混合电能质量扰动仿真分析表明,所提出的方法有较好的分类识别效果.
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| 关 键 词： | 电能质量 扰动信号 分类识别 分层 |
| 收稿时间： | 7/18/2009 3:22:48 PM |
| 修稿时间： | 2009/12/11 0:00:00 |
A New Hieratic Power Quality Disturbance Signal Identification Method |
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| WANG Lixi,HE Zhengyou,DAI Ming,ZHAO Jing,QIAN Qingquan.A New Hieratic Power Quality Disturbance Signal Identification Method[J].Automation of Electric Power Systems,2009,33(24):65-69. |
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| Authors: | WANG Lixi HE Zhengyou DAI Ming ZHAO Jing QIAN Qingquan |
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| Affiliation: | WANG Lixia,HE Zhengyou,DAI Ming,ZHAO Jing,QIAN Qingquan(Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | A new method combining the advantages of time domain and frequency domain analysis methods is proposed for improving the speed and accuracy of PQ disturbances identification.The method consists of seven function modules.By use of d-q transform,generalized morphological filter,Fourier transform and other simple signal processing methods,the amplitude,disturbance time,disturbance frequency domain singular entropy and other features of disturbances are identified and classified layer-by-layer,then a comprehens... |
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| Keywords: | power quality disturbances signal classification layered |
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