Analysis of Modified Single-Phase PFC AC-DC Buck-Boost Converter

Author

Yang, Lung-Sheng ; Chang, En-Chih

Author_Institution

Dept. of Electr. Eng., Far East Univ., Tainan, Taiwan

fYear

2011

fDate

21-23 Nov. 2011

Firstpage

272

Lastpage

275

Abstract

This paper researches a modified single-phase power-factor-correction (PFC) AC-DC buck-boost converter, which is operated in discontinuous conduction mode (DCM) by using a simple control scheme to achieve almost unity power factor, low total harmonic distortion of input current (THDi), and step-up/down DC output voltage for universal input voltage applications. This converter has low voltage stresses on the power devices than the conventional PFC AC-DC buck-boost converter. The steady-state analysis of voltage gain and boundary operating condition are discussed in detailed. Finally, the simulation results are shown to verify the performance of this modified buck-boost converter.

Keywords

AC-DC power convertors; harmonic distortion; power factor correction; boundary operating condition; discontinuous conduction mode; power factor correction; single-phase PFC AC-DC buck-boost converter; steady-state analysis; total harmonic distortion; unity power factor; voltage gain; voltage stress; AC-DC power converters; Inductors; Reactive power; Rectifiers; Simulation; Stress; Switches; DCM; PFC; Step-up/down converter; THDi;

fLanguage

English

Publisher

ieee

Conference_Titel

Robot, Vision and Signal Processing (RVSP), 2011 First International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-4577-1881-6

Type

conf

DOI

10.1109/RVSP.2011.41

Filename

6115000