Title :
Harmonic Analysis of Electromagnetic Transients in 500 kV Single Circuit Transmission System Using Discrete Wavelet Transform
Author :
Jaipradidtham, C. ; Pasomkusolsil, S.
Author_Institution :
Dept. of Electr. Eng., Kasem Bundit Univ., Bangkok
Abstract :
The paper presents an approach based signal processing on discrete wavelet transform for the evaluation of harmonic contents of electromagnetic transients in 500 kV single circuit transmission system. The analysis of electromagnetic transients is carried out by employing the wire electric field integral equation in frequency domain. After reaching the steady state the voltage and current waveforms, this paper presents a discrete-Fourier transform (DFT) filter bank for analyzing power system harmonic, and a DWT-based signal processing for harmonic analysis of non-stationary power system waveforms. Simulation results show that this scheme is capable of providing correct responses under various system configurations and fault conditions and practical harmonics evaluation of 500 kV EHV transmission lines in power system.
Keywords :
EMTP; discrete Fourier transforms; discrete wavelet transforms; power system harmonics; power transmission lines; signal processing; EHV transmission lines; current waveforms; discrete wavelet transform; discrete-Fourier transform; electromagnetic transients; filter bank; frequency domain; harmonic analysis; power system harmonics; signal processing; single circuit transmission system; voltage 500 kV; voltage waveforms; wire electric field integral equation; Circuits; Discrete wavelet transforms; Harmonic analysis; Power harmonic filters; Power system analysis computing; Power system faults; Power system harmonics; Power system simulation; Signal processing; Wavelet analysis; Discrete-Fourier-transform; discrete wavelet transform(DWT); electromagnetic transient; harmonics analysis;
Conference_Titel :
Power System Technology and IEEE Power India Conference, 2008. POWERCON 2008. Joint International Conference on
Conference_Location :
New Delhi
Print_ISBN :
978-1-4244-1763-6
Electronic_ISBN :
978-1-4244-1762-9
DOI :
10.1109/ICPST.2008.4745379
