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INVESTIGATION OF POWER SYSTEM TRANSIENT DISTURBANCES IN FREQUENCY AND TIME-FREQUENCY DOMAINS

Year 2014, Volume: 32 Issue: 2, 154 - 162, 01.06.2014

Abstract

Switching transients are defined as high frequency disturbances in power systems. These events are the important part of the power quality problems. In this study, to determine these transient disturbances, Autoregressive-Burg and Eigenvector techniques are used to obtain power spectral densities on frequency domain and the obtained results are compared. In these frequency domain techniques frequencies of the transient disturbances are defined clearly but the time of the disturbances can't be shown. Time-frequency domain analysis techniques are used in order to show both the frequency and time of the transient disturbances. For this aim, in this study Short time Fourier transforms (STFT) is employed for time-frequency domain analysis of switching transients. Proposed methods separate the frequency components of original signals accurately. Eigenvector and Burg methods have been employed to make a comparison in frequency domain analysis. It can be concluded that Eigenvector method gives a better frequency resolution with sharper frequency peaks.

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There are 17 citations in total.

Details

Primary Language English
Journal Section Research Articles
Authors

Ahmet Serdar Yılmaz This is me

Ahmet Alkan This is me

Publication Date June 1, 2014
Submission Date September 17, 2013
Published in Issue Year 2014 Volume: 32 Issue: 2

Cite

Vancouver Yılmaz AS, Alkan A. INVESTIGATION OF POWER SYSTEM TRANSIENT DISTURBANCES IN FREQUENCY AND TIME-FREQUENCY DOMAINS. SIGMA. 2014;32(2):154-62.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/