| 基于模糊理论和频谱分析的电力电子设备的故障诊断 |
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| 引用本文： | 刘颖,张民,张永辉.基于模糊理论和频谱分析的电力电子设备的故障诊断[J].海军工程大学学报,2005,17(1):85-88. |
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| 作者姓名： | 刘颖 张民 张永辉 |
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| 作者单位： | 海军工程大学,电气与信息工程学院,湖北,武汉,430033 |
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| 摘 要： | 将模糊理论和频谱分析引入电力电子电路故障诊断之中.对关键点的电压信号进行数据采集, 然后对此信号进行频谱分析,得到被诊断元件不同故障时关键点的频谱特征.通过确定各待诊断元件的故障隶属度,确定故障元件.故障诊断实例和仿真结果表明,本方法是可行的.
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| 关 键 词： | 故障诊断 隶属函数 频谱分析 |
| 文章编号： | 1009-3486(2005)01-0085-04 |
| 修稿时间： | 2004年9月30日 |
Fault diagnosis of power electronic circuits based on fuzzy theory and frequency spectrum analysis |
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| LIU Ying,ZHANG Min,ZHANG Yong-hui.Fault diagnosis of power electronic circuits based on fuzzy theory and frequency spectrum analysis[J].Journal of Naval University of Engineering,2005,17(1):85-88. |
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| Authors: | LIU Ying ZHANG Min ZHANG Yong-hui |
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| Abstract: | Based on fuzzy theoryand frequencyspectrum analysis,anew fault diagnosis method for power electronic circuits is presented. By collecting the voltage signals of sticking points and proceeding Fourieranalysis, its frequency spectrumcharacters are acquired. Meanwhilethe membership degreesare built to confirm fault component. Experimental results and computer simulation both show that the proposed methodis feasible. |
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| Keywords: | fault diagnosis membership function frequency spectrum analysis |
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