Three-phase six-pulse buck rectifier with high quality input waveforms

Author

Conde-Enriquez, J. ; Benitez-Read, J.S. ; Durán-Gómez, J.L. ; Pacheco-Sotelo, J.O.

Author_Institution

Inst. Tecnologico de Toluca, Metepec, Mexico

Volume

146

Issue

6

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

637

Lastpage

645

Abstract

The design and analysis of a three-phase, six-pulse buck rectifier is presented. The PWM modulation technique is analysed using the commuting function. Such analysis represents the main design tool for the commutation sequence, since it provides information about the harmonic behaviour of the rectifier signals with respect to the parameters involved in the modulation. The carrier signal is selected after a spectral analysis has been performed, to minimise the harmonic distortion content, thus obtaining high quality input currents. Likewise, as an additional and helpful tool for the designer, a digital circuit was developed to generate and store the commuting function, which is then applied to the rectifier. Some tests were carried out on a prototype. The results which focus on the power factor and the total harmonic distortion are presented

Keywords

PWM power convertors; commutation; harmonic distortion; power conversion harmonics; power factor; rectifying circuits; spectral analysis; PWM modulation technique; carrier signal selection; commutation sequence; commuting function; digital circuit; harmonic behaviour; harmonic distortion minimisation; high quality input currents; high quality input waveforms; power factor; rectifier signals; spectral analysis; three-phase six-pulse buck rectifier; total harmonic distortion;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19990639

Filename

820090