Title :
A comparative study of three-phase single-switch buck converters
Author :
Bassan, Sondeep ; Moschopoulos, Gerry
Author_Institution :
Dept. of Electr. & Comput. Eng., Western Ontario Univ., London, ON
Abstract :
Three-phase single-switch buck converters can be made to operate with a very good power factor if their input capacitor voltages are discontinuous. Operating these converters in discontinuous voltage mode (DVM), however, results in high peak voltages that cause the switch to have peak voltage stresses. In this paper, a variable switching frequency control technique that can reduce these stresses is presented and a comparative study between the conventional three-phase single-switch buck and the quadratic buck converters operating with this technique is made.
Keywords :
AC-DC power convertors; frequency control; machine control; power factor; switching convertors; discontinuous voltage mode; power factor; quadratic buck converters; three-phase single-switch buck converters; variable switching frequency control technique; Buck converters; Capacitors; Diodes; Pulse width modulation; Reactive power; Stress; Switches; Switching converters; Switching frequency; Voltage; AC-DC power conversion; Power factor; Rectifiers; Switched Mode Power Supplies;
Conference_Titel :
Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-1642-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2008.4564547
