Performance Comparison of VSI Switches Faults Analysis Using STFT and S transform

Manap, Mustafa and Abdullah, Abdul Rahim and Saharuddin, N. Z. and abidullah, Noor Athira and ahmad, nur sumayyah and JOPRI, MOHD HATTA (2015) Performance Comparison of VSI Switches Faults Analysis Using STFT and S transform. Applied Mechanics and Materials, 785 (2015). pp. 210-214. ISSN 16609336

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Abstract

Switches fault in power converter has become compelling issues over the years. To reduce cost and maintenance downtime, a good fault detection technique is an essential. In this paper, the performance of STFT and S transform techniques are analysed and compared for voltage source inverter (VSI) switches faults. The signal from phase current is represented in jointly timefrequency representation (TFR) to estimate signal parameters and characteristics. Then, the degree of accuracy for both STFT and S transform are determined by the lowest value of mean absolute percentage error (MAPE). The results demonstrate that S transform gives better accuracy compare to STFT and is suitable for VSI switches faults detection and identification system.

Item Type:	Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electrical Engineering > Department of Power Electronics & Drives
Depositing User:	Dr Abdul Rahim Abdullah
Date Deposited:	08 Jul 2015 01:01
Last Modified:	08 Jul 2015 01:01
URI:	http://eprints.utem.edu.my/id/eprint/14719
Statistic Details:	View Download Statistic

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