Title :
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
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;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4577-0542-7
DOI :
10.1109/ECCE.2011.6064199
