Title :
Group-harmonic identification in power systems with nonstationary waveforms
Author :
Moo, C.S. ; Chang, Y.N.
Author_Institution :
Inst. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
9/1/1995 12:00:00 AM
Abstract :
A strategy of `group-harmonic´ identification is proposed for re-evaluating harmonic levels in power systems. The proposed strategy can relieve the problem of spectral leakage in the conventional application of the fast Fourier transform (FFT). Incorporating group-harmonic identification, the FFT algorithm can retain its efficiency for accurate harmonic calculations, especially for power systems with nonstationary waveforms
Keywords :
fast Fourier transforms; parameter estimation; power system harmonics; FFT; fast Fourier transform; group-harmonic identification; harmonic levels re-evaluation; nonstationary waveforms; power systems; spectral leakage;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
DOI :
10.1049/ip-gtd:19952102
