Boost and Buck topology based single phase AC-DC converters with low THD and high power factor

Author

Kabir, Md Ashfanoor ; Abedin, Amina Hasan ; Rahman, Dhrubo ; Mustafiz, Rubiya Binta ; Choudhury, M.A.

Author_Institution

Dept. of Electr. & Electron. Eng., Bangladesh Univ. of Eng. & Technol., Dhaka, Bangladesh

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

7

Abstract

Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a single phase rectifier followed by a boost dc-dc converter, or using a bridge rectifier with two diodes and two switches, the rectifier´s input is chopped at high frequency during positive and negative cycles by a bi-directional switch in each of the Boost and Buck conversion mode to get step-up or step-down ac-dc conversion. Total Harmonic Distortion (THD) of the input current of the proposed circuits with small input current filter is low. Input power factor and the efficiency of conversion of the circuits are high. The circuits exhibit such performance with variable loads at constant frequency switching. No additional control is required to achieve the advantages.

Keywords

AC-DC power convertors; harmonic distortion; network topology; power factor; power supply quality; bidirectional switch; boost topology; buck topology; high power factor AC-DC converter; low THD AC-DC converter; single phase AC-DC converter; total harmonic distortion; DC-DC power converters; Standards; AC-DC power converters; active power filters; bridge rectifier circuits; harmonic distortion; harmonic standards; passive filters; power harmonics; power supplies; rectifying circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099724

Filename

6099724