Aviation AC Series Arc Fault Detection Based on Improve Empirical Wavelet Transform Multi-Feature Fusion

被引:0
|
作者
Cui R. [1 ,2 ]
Zhang Z. [1 ,2 ]
Tong D. [1 ,2 ]
Cui J. [3 ]
机构
[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin
[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin
[3] Avic Tianjin Aviation Electro-Mechanical Co. Ltd, Tianjin
关键词
Aviation arc fault; Empirical mode decomposition; Empirical wavelet transform; Extreme learning machine; Multi-feature fusion; Time-frequency analysis;
D O I
10.19595/j.cnki.1000-6753.tces.201706
中图分类号
学科分类号
摘要
An arc fault detection method based on improved empirical wavelet transform (IEWT) multi-feature fusion and extreme learning machine (ELM) was proposed to deal with the mode mixing phenomenon of the time-frequency domain analysis method (EMD). Firstly, the arc current signal was decomposed into five empirical mode components (EMFs) by IEWT, and the weight energy entropy of EMFs, sample entropy of EMF4, and root mean square value of EMF1 were extracted as characteristic variables. After data standardization, the three arc fault features were fused to form a multi-dimensional feature matrix, and finally the fault was identified by ELM. Comparing the IEWT and EMD decomposition, the results show that the IEWT method is superior to the signal processing of EMD, and it also avoids the misjudgment caused by a single feature under the multi-feature extraction. Combined with ELM, arc faults can be accurately identified, and the average accuracy is 97.85%. © 2022, Electrical Technology Press Co. Ltd. All right reserved.
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页码:3148 / 3161
页数:13
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