A New Method to Fault Diagnosis for Circuit Breakers Based on Characteristic Entropy of Wavelet Packet

Sun, Laijun; Liu, Mingliang; Qian, Haibo; Qiao, Changming

doi:10.1109/icdma.2011.24

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Application Of Entropy1

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Cited by 2 publications

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“…According to this property, we can use the piecewise approach to achieve entropy extraction. This is in this paper according to characteristic entropy time segmented [16][17][18] extraction method, the principle as shown in Fig. 1.…”

Section: Application Of Entropymentioning

confidence: 99%

Applying empirical mode decomposition (EMD) and entropy to diagnose circuit breaker faults

Liu

Wang

Sun

et al. 2015

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Section: Application Of Entropymentioning

confidence: 99%

Applying empirical mode decomposition (EMD) and entropy to diagnose circuit breaker faults

Liu

Wang

Sun

et al. 2015

Optik

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Applying Energy-Equal Entropy of Wavelet Packet to Diagnose Circuit Breaker Faults

Liu¹,

Wang²,

Sun³

et al. 2014

TOEEJ

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Aiming to better reflect features of machinery vibration signals of high-voltage (HV) circuit breaker (CB), a new method is proposed on the basis of energy-equal entropy of wavelet packet(WP). First of all, three-layer wavelet packet decomposes vibration signal, reconstructing 8 nodes of signals in the 3rd layer. Then, the vector is extracted with energy-equal entropy of reconstructed signals. At last, the simple back-propagation (BP) neural network for fault diagnosis contributes to classification of the characteristic parameter. This technology is the basis of a number of patents and patents pending, which is experimentally demonstrated by the significant improvement of diagnose faults.

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A New Method to Fault Diagnosis for Circuit Breakers Based on Characteristic Entropy of Wavelet Packet

Cited by 2 publications

References 7 publications

Applying empirical mode decomposition (EMD) and entropy to diagnose circuit breaker faults

Applying empirical mode decomposition (EMD) and entropy to diagnose circuit breaker faults

Applying Energy-Equal Entropy of Wavelet Packet to Diagnose Circuit Breaker Faults

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