Title :
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
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989325
