Single-phase two-switch PCCM buck-boost PFC converter with fast dynamic response for universal input voltage

Author

Zhang, Fei ; Xu, Jianping ; Yang, Ping ; Chen, Zhangyong

Author_Institution

Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

205

Lastpage

209

Abstract

A novel single-phase two-switch pseudo-continuous conduction mode (PCCM) buck-boost PFC converter and its corresponding control strategy are proposed in this paper. The two-switch PCCM buck-boost topology provides an additional degree of control freedom to realize PFC control, which can offer significant performance improvements over single-switch buck-boost converters or two-switch buck-boost converters in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). A simple and fast voltage control loop can be designed to realize output voltage regulation. The additional degree of control freedom introduced by inductor current freewheeling operation helps to achieve unity power factor control. Analysis and simulation results of PCCM buck-boost PFC converter have been presented. The experiment results show that the dynamic response of the PCCM buck-boost PFC converter is significantly faster than the CCM and DCM buck-boost PFC converter.

Keywords

dynamic response; inductors; power control; power convertors; power factor correction; voltage control; CCM; DCM; continuous conduction mode; control freedom degree; discontinuous conduction mode; dynamic response; inductor current; power factor correction control; pseudo-continuous conduction mode; single-phase two-switch PCCM buck-boost PFC converter; universal input voltage; voltage control loop; voltage regulation; Current control; Inductors; Rectifiers; Switches; Topology; Voltage control; Dynamic response; Non-inverting buck-boost converter; Power Factor Correction (PFC); Pseudo-continuous conduction mode (PCCM);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944581

Filename

5944581