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Proceedings Paper

Forced Commutation Topologies In Thyristor Chopper Circuits
Author(s): Edison R. Cabral da Silva
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Paper Abstract

This paper considers the thyristor chopper circuits constituted of a power circuit (source, main thyristor, load and freewheeling diode), a basic commutation circuit and a voltage reversion circuit (to make the commutation capacitor voltage polarity adequate to commutate the main thyristor current). Different possibilities of connection of basic commutation circuits into the chopper power circuit and possible techniques for reversal of commutation capacitor voltage polarity are presented. As a result, derivation of large number of topologies is systematised.

Paper Details

Date Published: 19 October 1987
PDF: 8 pages
Proc. SPIE 0854, IECON '87: Motor Control and Power Electronics, (19 October 1987); doi: 10.1117/12.942986
Show Author Affiliations
Edison R. Cabral da Silva, Universidade Federal da Paraiba (Brasil)

Published in SPIE Proceedings Vol. 0854:
IECON '87: Motor Control and Power Electronics
Martin F. Schlecht, Editor(s)

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