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Partial Discharge Source Classification and De-Noising in Rotating Machines Using Discrete Wavelet Transform and Directional Coupling Capacitor
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Journal of Electromagnetic Analysis and Applications·Volume 01 (2009)·Pages 92–96·Published 24 June 2009·DOI10.4236/jemaa.2009.12014
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Abstract
This paper introduces a new method to separate PD1 from other disturbing signals present on the high voltage genera-tors and motors. The method is based on combination of a pattern classifier, the Discrete Wavelet Transform (DWT), to de-noise PD and Time-Of-Arrival method to separate PD sources. Furthermore, it will be shown that it can recognize PD sources including rotating machine’s internal and external discharge pulses (e.g. on the bus bar).
KeywordsPartial DischargeDiscrete Wavelet TransformTime-Of-ArrivalRotating MachinesDe-NoisingCoupling Capacitor
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