Input switched single phase buck and buck-boost AC-DC converter with improved power quality

Khan, Mohammed Masum Siraj; Arifin, Md Shamsul; Hossain, Md Rubaiyat Tanvir; Kabir, Md Ashfanoor; Abedin, Amina Hasan; Choudhury, Mohammad Ali A Shoukat

Date

2012

Publisher

Citation

Khan, M. M. S., Arifin, M. S., Hossain, M. R. T., Kabir, M. A., Abedin, A. H., & Choudhury, M. A. (2012). Input switched single phase buck and buck-boost AC-DC converter with improved power quality. Paper presented at the 2012 7th International Conference on Electrical and Computer Engineering, ICECE 2012, 189-192. doi:10.1109/ICECE.2012.6471517

Abstract

Two new topologies of single-phase AC-DC converter using Buck and Buck-Boost conversion with low input current THD and high input power factor are proposed. 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 single bi-directional switch to get step-up/step-down ac-dc conversion. Total Harmonic Distortion (THD) of the input current of the proposed circuit with small input current filter is low. Input power factor and the efficiency of conversion of the circuit are high. No additional control is required to achieve the advantages.

Keywords

AC-DC power converters; Active power filters; Bridge rectifier circuits; Harmonic distortion

Description

This conference paper was presented in the 2012 7th International Conference on Electrical and Computer Engineering, ICECE 2012; Dhaka; Bangladesh; 20 December 2012 through 22 December 2012 [© 2012 IEEE ] The conference paper's definite version is available at: http://doi.org/10.1109/ICECE.2012.6471517

Publisher Link

http://ieeexplore.ieee.org/document/6471517/

DOI

http://doi.org/10.1109/ICECE.2012.6471517

Department

Department of Electrical and Electronic Engineering, BRAC University

Type

Conference paper

Collections

Conference Paper