Control of a flyback converter in power factor correction mode: compromize between the current constraints and the transformer volume

Author

Larouci, C. ; Ferrieux, J.P. ; Gerbaud, L. ; Roudet, J. ; Barbaroux, J.

Author_Institution

Lab. d´´Electrotechnique, CNRS, Grenoble, France

Volume

2

fYear

2002

fDate

2002

Firstpage

722

Abstract

The aim of this paper is to present a new method to control the flyback converter in PFC mode. This control combines two conduction modes: discontinuous and continuous (mixed control). It allows to decrease the semiconductor current constraints and gives a good compromize between these constraints and the transformer volume. Both discontinuous and mixed conduction modes are analyzed and simulated. The simulation results are validated thanks to a workbench made for each conduction mode. To show the advantages of the new control, comparison between the traditional method (discontinuous conduction) and the mixed control results is also given

Keywords

AC-DC power convertors; control system analysis; control system synthesis; power factor correction; rectifying circuits; voltage control; AC/DC power conversion; continuous conduction mode; control design; control simulation; discontinuous conduction mode; flyback converter control; mixed conduction modes; power factor correction mode; semiconductor current constraints; transformer volume; Analytical models; Flyback transformers; Frequency conversion; Galvanizing; Magnetic analysis; Magnetic circuits; Power factor correction; Power transformer insulation; Switching frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE

Conference_Location

Dallas, TX

Print_ISBN

0-7803-7404-5

Type

conf

DOI

10.1109/APEC.2002.989325

Filename

989325