Title :
Wavelet based transformer protection
Author :
Ozgonenel, Okan ; Onbilgin, Guven ; Kocaman, Cagri
Author_Institution :
Dept. of Electr. & Electron. Eng., Ondokuz Mayis Univ., Samsun, Turkey
Abstract :
This paper presents the development of a wavelet based transformer protection algorithm. In this paper, a laboratory transformer is modelled and simulated to see the accuracy of the proposed algorithm by using ATP-EMTP. The main objective of this paper is to analyze discontinuities in current signals during phase to ground faults and phase to phase faults. The generated data is used with the MATLAB software to test the performance of the proposed technique regarding the speed of response, computational burden and reliability. maximum likelihood parameter estimation is used to interpret detail coefficients.
Keywords :
EMTP; fault currents; fault diagnosis; power transformer protection; reliability; wavelet transforms; ATP-EMTP; MATLAB software; computational burden; current signal; maximum likelihood parameter estimation; phase-ground fault; phase-phase fault; reliability; transformer protection algorithm; wavelet transform; Digital relays; Fourier transforms; Frequency; Power system protection; Power transformers; Protective relaying; Signal analysis; Transient analysis; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Electrotechnical Conference, 2004. MELECON 2004. Proceedings of the 12th IEEE Mediterranean
Print_ISBN :
0-7803-8271-4
DOI :
10.1109/MELCON.2004.1348199
