Title :
A new control scheme for an AC-DC single-stage buck-boost PFC converter with improved output ripple reduction and transient response
Author :
Rezaei, Kamran ; Golbon, Navid ; Moschopoulos, Gerry
Author_Institution :
ECE Dept., Western Univ., London, ON, Canada
Abstract :
The main objective of this paper is to minimize the 120 Hz output ripple component and improve the dynamic response of an AC-DC single-stage power factor correction (PFC) buck-boost converter by using a new control scheme. In the paper, the operation of the single-stage converter is briefly reviewed and the proposed control method is introduced and explained in detail. Key design considerations for the design of the converter controller are discussed and the converter´s ability to operate with fixed DC bus voltage, low output ripple and fast dynamic response is confirmed with experimental results obtained from a prototype converter.
Keywords :
AC-DC power convertors; control system synthesis; power factor correction; transient response; AC-DC single-stage buck-boost PFC converter; AC-DC single-stage power factor correction; PFC buck-boost converter; converter controller design; fast dynamic response; fixed DC bus voltage; low output ripple; output ripple reduction; transient response; Bandwidth; Feedback loop; Flyback transformers; Harmonic analysis; Low-pass filters; Power harmonic filters; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE
Conference_Location :
Fort Worth, TX
DOI :
10.1109/APEC.2014.6803560
