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Power quality analysis using spectrogram and gabor transformation

Abdullah, Abdul Rahim and Mohd Saad , Norhashimah (2007) Power quality analysis using spectrogram and gabor transformation. In: Asia-Pacific Conference on Applied Electromagnetics, 2007. APACE 2007, 4 december 2007, Melaka.

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Abstract

This paper discusses the implementation of time-frequency analysis techniques to analyze power quality disturbances. The approached methods are spectrogram and Gabor transform algorithms. Signal parameters such as time marginal and frequency marginal are extracted from the time-frequency distributions. The parameters are analyzed in terms of correctness measurement of root mean square (RMS), total harmonic distortion (THD), total waveform distortion (TWD) and total interharmonic distortion (TnHD) values. Power quality events that are analyzed are swell, sag, interruption, harmonic, interharmonic, transient, notching and normal voltage. The results show that Gabor transform provides better performance in terms of correctness of parameters measurement, window length, frequency resolution and memory size.

Item Type: Conference or Workshop Item (Speech)
Additional Information: cited By (since 1996) 0
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: 09 Jul 2013 06:02
Last Modified: 28 May 2015 03:25
URI: http://eprints.utem.edu.my/id/eprint/4496

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