A soft-switched AC-to-DC converter operating in DCM: analysis, design, simulation and experimental results

Author

Chen, Ping ; Bhat, Ashoka K S

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

Volume

2

fYear

2004

fDate

2004

Firstpage

730

Abstract

A soft-switched AC-to-DC converter cell operating in DCM is proposed. Operating principle and various operating intervals of the converter are presented and analyzed. Design procedure is illustrated with a design example of a 1 kW AC-to-DC converter cell operating on a 165 to 265 V rms utility-line and switching at 100 kHz. Loss calculations are included. Based on the design example, operation and performance of the converter is verified using SPICE simulations. Detailed experimental results obtained for the designed converter employing warp-speed IGBTs are presented. This converter has low line-current THD and has a measured efficiency of about 95% and will be used as cells of a multi-phase 5 kW converter.

Keywords

AC-DC power convertors; SPICE; harmonic distortion; insulated gate bipolar transistors; switching convertors; 1 kW; 100 kHz; 165 to 265 V; 5 kW; 95 percent; SPICE simulations; discontinuous current mode; low line-current THD; multiphase converter; soft-switched AC-to-DC converter; warp-speed IGBT; Analytical models; Circuits; Computational modeling; Computer simulation; Diodes; Switches; Switching converters; Switching frequency; Switching loss; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE

Print_ISBN

0-7803-8269-2

Type

conf

DOI

10.1109/APEC.2004.1295900

Filename

1295900