Analysis of characteristics of simultaneous faults in electrical power systems using wavelet transform

Author

Ngaopitakkul, A. ; Pongchaisrikul, W. ; Kunakorn, A.

Author_Institution

Dept. of Electr. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

fYear

2008

fDate

24-27 Nov. 2008

Firstpage

249

Lastpage

252

Abstract

This paper presents an algorithm used in the analysis of simultaneous fault characteristics. The system under investigations is the 500-kV transmission network in Thailand. The analysis is performed using PSCAD/EMTDC and MATLAB/Simulink. Wavelet transform is used in order to detect high frequency components of the fault current signals. The characteristics of the fault current with various fault inception angles, fault locations and faulty phases are observed. It is found that the technique proposed in this paper gives satisfactory results in the simultaneous fault classification.

Keywords

discrete wavelet transforms; fault currents; power system faults; transmission networks; MATLAB/Simulink; PSCAD/EMTDC; Thailand; discrete wavelet transform; electrical power systems; fault current signals; fault inception angles; fault locations; faulty phases; high frequency components; simultaneous fault characteristics; simultaneous fault classification; transmission network; voltage 500 kV; Algorithm design and analysis; EMTDC; Fault currents; MATLAB; PSCAD; Performance analysis; Power system analysis computing; Power system faults; Wavelet analysis; Wavelet transforms; Discrete Wavelet Transform; PSCAD/EMTDC; Simultaneous Fault;

fLanguage

English

Publisher

ieee

Conference_Titel

Sustainable Energy Technologies, 2008. ICSET 2008. IEEE International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-1887-9

Electronic_ISBN

978-1-4244-1888-6

Type

conf

DOI

10.1109/ICSET.2008.4747011

Filename

4747011