Selection of a suitable mother wavelet for analyzing power system fault transients

Author

Megahed, A.I. ; Moussa, A. Monem ; Elrefaie, H.B. ; Marghany, Y.M.

Author_Institution

Dept. of Electr. Eng., Alexandria Univ., Alexandria

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

7

Abstract

In the literature, wavelet techniques are proposed for the analysis of power system transients. Many mother wavelets have been used for this analysis such as Haar, Daubechies (db), Symlets, and Coiflets. This paper describes a strategy to choose a suitable mother wavelet for this analysis. It also shows the deviation between Matlab and theoretical (mathematically calculated) db-wavelets when they are used for the analysis of power system transient. The simulation study is carried out using PSCAD simulation program and Matlab wavelet toolbox. The simulation results show that the theoretical db wavelet is more suitable for analyzing power system fault transients than the Matlab db wavelet.

Keywords

power system faults; wavelet transforms; Daubechies wavelet; mother wavelet; power system fault transients; Discrete wavelet transforms; Frequency; Low pass filters; Power system faults; Power system protection; Power system simulation; Power system transients; Transient analysis; Wavelet analysis; Wavelet transforms; Daubechies wavelet; Matlab wavelets toolbox; Power system fault transient;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596367

Filename

4596367