Title :
Compensation of nonstationary harmonics using active power filter with Prony´s spectral estimation
Author :
Nakajima, Tatsuhito ; Tamura, Minoru ; Masada, Eisuke
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ., Japan
Abstract :
A novel control scheme for the filter is proposed that is based on the cosine timing control principle and is easily realized with the microcomputer software. The output current waveform of the filter can be determined in real time. Prony´s spectral estimation is introduced for measuring the nonstationary harmonic currents. The time-varying harmonic spectrum obtained by Prony´s method shows more reasonable results than Fourier analysis. The compensating ability of the filter is verified through numerical analysis studies.<>
Keywords :
Fourier analysis; active filters; compensation; harmonics; Fourier analysis; Prony spectral estimation; active power filter; cosine timing control; microcomputer software; nonstationary harmonics; output current waveform; time-varying harmonic spectrum; Active filters; Fourier series; Least squares approximation; Power electronics; Power harmonic filters; Power system harmonics; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation;
Conference_Titel :
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE
Conference_Location :
Kyoto, Japan
DOI :
10.1109/PESC.1988.18257
