Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4577-1249-4
Electronic_ISBN :
2158-5210
DOI :
10.1109/INTLEC.2011.6099724
