Title :
A family of PFC voltage regulator configurations with reduced redundant power processing
Author :
Tse, Chi K. ; Chow, Martin H L ; Cheung, Martin K H
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., China
fDate :
11/1/2001 12:00:00 AM
Abstract :
This paper discusses a systematic method for deriving basic converter configurations that achieve power factor correction (PFC) and voltage regulation. The discussion begins with a general three-port representation of power supplies that provide PFC and voltage regulation. Based on this representation and a power flow consideration, a systematic procedure is derived to generate all possible minimal configurations. Among these configurations, only a few have been known previously and used in practice. It is found that the efficiency of PFC voltage regulators can be improved by reducing the amount of redundant power to be processed by the constituent converters. A systematic circuit synthesis procedure is proposed for creating PFC voltage regulators with reduced redundant power processing. Experimental measurements verify the improved efficiency
Keywords :
DC-DC power convertors; load flow; power factor correction; power supplies to apparatus; switching circuits; voltage control; voltage regulators; PFC voltage regulator configurations; buck-boost converter; circuit synthesis; forward converter; minimal configurations; power factor correction; power flow; power supplies; reduced redundant power processing; switching converters; three-port representation; voltage regulation; Circuit synthesis; Energy storage; Load flow; Power factor correction; Power generation; Power supplies; Reactive power; Regulators; Switching converters; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
