The effect of ripple steering on control loop stability for a CCM PFC boost converter

Author

Musavi, Fariborz ; Edington, Murray ; Eberle, Wilson ; Dunford, William G.

Author_Institution

Dept. of Res., Delta-Q Technol. Corp., Burnaby, BC, Canada

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

3193

Lastpage

3199

Abstract

In this paper, an average switch model approach to the power stage modeling, feedback compensation and dynamic analysis of PFC boost converters with coupled magnetic filter is presented. The model is expressed by derivation of power stage transfer functions for a conventional boost converter, and then followed by the power stage transfer functions for a PFC boost converter with coupled magnetic filter. Experimental and simulation results of a prototype boost converter converting universal AC input voltage to 400 V DC at 1.8 kW are given to verify the proof of concept, and analytical work reported. The experimental results demonstrate that the model can correctly predict the steady-state and large signal dynamic behavior of a CCM PFC boost converter with coupled magnetic filter.

Keywords

PWM power convertors; current-mode circuits; electric current control; magnetic devices; power factor correction; power filters; stability; switching convertors; voltage control; CCM PFC boost converter; average switch model; continuous current mode; control loop stability; dynamic analysis; feedback compensation; magnetic filter; power factor correction boost converter; power stage modeling; power stage transfer functions; ripple steering; Capacitors; Equivalent circuits; Inductors; Integrated circuit modeling; Magnetic separation; Switches; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6064199

Filename

6064199