Title :
Haar Wavelet-Based Method for Fast Fault Classification in Transmission Lines
Author :
Silva, K.M. ; Dantas, K.M.C. ; Souza, B.A. ; Brito, N.S.D. ; Costa, F.B. ; Silva, J.A.C.B.
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Campina Grande
Abstract :
The application of Haar wavelet transform for fault classification in transmission lines is proposed. The faulted phases identification is carried out by the analysis of the energy of the detail coefficients of the phase currents. In addition, by the analysis of the smooth coefficients of the neutral current, the ground faults can be distinguished from phase to phase ones. The algorithm was evaluated with EMTP-simulated faults. The obtained results reveal that the proposed method can accurately identify transmission line faults from a wide variety of power system operating conditions, within the first half-cycle after the beginning of the fault
Keywords :
Haar transforms; fault diagnosis; power transmission faults; power transmission lines; wavelet transforms; EMTP-simulated faults; Haar wavelet-based method; fast fault classification; faulted phases identification; transmission lines; Artificial neural networks; Discrete wavelet transforms; Fault diagnosis; Impedance; Power system faults; Power system protection; Power transmission lines; Transmission line theory; Transmission lines; Wavelet transforms; Fault diagnosis; transmission lines; wavelet transforms;
Conference_Titel :
Transmission & Distribution Conference and Exposition: Latin America, 2006. TDC '06. IEEE/PES
Conference_Location :
Caracas
Print_ISBN :
1-4244-0287-5
Electronic_ISBN :
1-4244-0288-3
DOI :
10.1109/TDCLA.2006.311465
