Abstract
By introducing the double Fourier transform of the switch function, the frequency spectrums of DC side current of inverter in normal, open fault of one transistor and open fault of two transistors in one phase are analyzed. The RMS value of the wavelet packet decomposition coefficients of DC side current was calculated, and could be the symptom of open fault. The experimental results demonstrated that the proposed approach is feasible.
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© 2011 Springer-Verlag Berlin Heidelberg
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Yang, Z., Liu, J., Ouyang, H. (2011). Open Fault Diagnose for SPWM Inverter Based on Wavelet Packet Decomposition. In: Hu, W. (eds) Electronics and Signal Processing. Lecture Notes in Electrical Engineering, vol 97. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21697-8_121
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DOI: https://doi.org/10.1007/978-3-642-21697-8_121
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21696-1
Online ISBN: 978-3-642-21697-8
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