Title: NEW APPROACH FOR INITIAL DETECTION OF POWER QUALITY DISTURBANCES BASED ON CONTINUOUS S-TRANSFORM (CST)

Year of Publication: 2012
Page Numbers: 197-201
Authors: K. Daud, A. Abidin, N. Hamzah, H. Singh
Conference Name: The International Conference on Computing, Networking and Digital Technologies (ICCNDT2012)
- Bahrain

Abstract:


This paper produces a new approach for power quality analysis using a windowing technique based on Continuous S-transform (CST). This half-cycle window technique approach can detect almost correctly for initial detection of disturbances i.e. voltage sags and swells. S- transform is a time-frequency representation whose analyzing function is the product of a fixed Fourier sinusoid with a scalable, translatable window. S-transform has better time frequency and localization property than traditional and also has ability to detect the disturbance under noisy condition correctly. The excellent time-frequency resolution characteristic of the S-transform makes it the most an attractive candidate for analysis of power system disturbances signals.