DocumentCode
2241556
Title
Current commutated two quadrant thyristor chopper
Author
Joshi, Avinash ; Dewan, S.
Author_Institution
Univ.. of Toronto, Toronto, Canada
fYear
1978
fDate
13-15 June 1978
Firstpage
81
Lastpage
88
Abstract
A thyristor chopper capable of operation in two quadrants (positive or negative output voltage, positive output current) from a fixed voltage d.c. input, is described in this paper. An optimum control strategy for controlling the average output voltage of the chopper is given. A commutation circuit for the turn-off of thyristor switches has been described. The circuit uses the principle of current commutation which requires small commutation components. The commutation circuit has been analysed in detail using simple equivalent circuits. A design procedure based on this analysis has been given. The results of the analysis have been verified on an experimental lOkw chopper system.
Keywords
Capacitors; Choppers (circuits); Equations; Equivalent circuits; Silicon; Switches; Thyristors;
fLanguage
English
Publisher
ieee
Conference_Titel
Power Electronics Specialists Conference, 1978 IEEE
Conference_Location
Syracuse, New York, USA
ISSN
0275-9306
Type
conf
DOI
10.1109/PESC.1978.7072340
Filename
7072340
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