| 用傅里叶分析法诊断电力电子电路的故障 |
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| 引用本文： | 徐德洪,程肇基.用傅里叶分析法诊断电力电子电路的故障[J].浙江大学学报(自然科学版 ),1994,28(6):666-674. |
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| 作者姓名： | 徐德洪 程肇基 |
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| 摘 要： | 本文提出了一种电力电子电路故障的在线诊断方法。由于电力电子电路中包含故障信息的关键点信号通常具有周期性，故可采用傅里叶变换将时域信息变换到频域中分析。采用本文的频域故障特征抽选方法，能够有效地实现故障诊断。
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| 关 键 词： | 故障诊断 傅里叶分析 电力电子电路 |
Fault diagnosis of power electronic circuits with discrete fourier transform |
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| Xu Dehong, Cheng Zhaoji, Cui Xuejun.Fault diagnosis of power electronic circuits with discrete fourier transform[J].Journal of Zhejiang University(Engineering Science),1994,28(6):666-674. |
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| Authors: | Xu Dehong Cheng Zhaoji Cui Xuejun |
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| Affiliation: | Department of Electrical Engineering |
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| Abstract: | A new on-line fault diagnosis method for power electronic circuits is presented. Since signals ofkey points in power electronic circuits, which include fsult information,are normally periodical,theyare able to be transformed to frequenCy domain with Discrete Fourier Transform. Then a series offeature vectors in the freaquency domain is found,which is able to isolate different faultsefficiently. |
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| Keywords: | fault diagnosis fourier transform power electronic circuits |
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