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Simple new PWM patterns for thyristor three-phase AC/DC convertors

Biswas, SK and Mahesh, MS and lyengar, BSR (1986) Simple new PWM patterns for thyristor three-phase AC/DC convertors. In: IEE Proceedings B: Electric Power Applications, 133 (6). 354 -358.

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Thyristor forced commutated AC/DC convertors are useful for improving the power factor and waveform of AC-side line current. These are controlled through pulse-width modulation schemes for best performance. However, the 3-phase versions impose restrictions on the PWM strategies that can be implemented for excellent harmonic rejection. This paper presents new PWM control strategies for the 3-phase converters and compares them along with the conventional 4-pulse PWM strategy for harmonic elimination. Finally, two new PWM strategies are shown to be the best, for which oscillograms are presented from actual implementation.

Item Type: Journal Article
Publication: IEE Proceedings B: Electric Power Applications
Publisher: IEEE
Additional Information: Copyright of this article belongs to Institution of Electrical Engineers.
Keywords: Commutation,Power conversion,Convertors,Thyristors.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 06 Feb 2010 13:10
Last Modified: 19 Sep 2010 05:33
URI: http://eprints.iisc.ac.in/id/eprint/20463

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