Performance of modified s-transform for power quality disturbance detection and classification

Mohd Noh, Faridah Hanim and Ab. Rahman, Munirah and Yaakub, M. Faizal (2016) Performance of modified s-transform for power quality disturbance detection and classification. Indonesian Journal of Electrical Engineering and Computer Science, 2 (3). pp. 401-408. ISSN 1693-6930

Full text not available from this repository. (Request a copy)


Detection and classification of power quality (PQ) disturbances are an important consideration to electrical utility companies and many industrial customers so that diagnosis and mitigation of such disturbance can be implemented quickly. Power quality signal consists of stationary and non-stationary events which need a robust signal processing technique to analyse the signals. In this paper, Modified S-Transform (MST) was used to analyse single and multiple power quality signals. MST is a modified version of S-transform with improved time-frequency resolution. The power quality signals that are considered in this study are voltage swell, sag, interruption, harmonic, interharmonic, transient, sag plus harmonic and swell plus harmonics. The performance of the proposed method has been studied under noisy and unnoisy condition. Hard thresholding technique has been applied with MST while analysing noisy PQ signals. The result shows that MST is able to give higher classification rate with better time and frequency distribution (TFD) spectrum of the PQ disturbances

Item Type: Article
Uncontrolled Keywords: Detection and classification; Power quality disturbances; MST; Time Frequency distribution
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Engineering Technology > Department of Electrical Engineering Technology
Depositing User: Miss Nur Rasyidah Rosli
Date Deposited: 22 Nov 2021 06:45
Last Modified: 22 Nov 2021 06:45

Actions (login required)

View Item View Item