Modelling and simulation of bridgeless PFC modified SEPIC rectifier with multiplier cell

Ahmed M. Al Gabri, Abbas A. Fardoun, Esam H. Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This paper introduces a new bridgeless rectifier that operates with high power factor and high efficiency. The proposed rectifier is derived from the conventional single-ended primary inductance converter (SEPIC) and it is suitable for universal line applications. Multiplier cells have been introduced in the literature to extend the converter gain and to decrease the voltage stresses across the converter switches. The reduced voltage stress across the power switch enables the use of a lower voltage and RDS-ON MOSFET switch, which will further reduce the conduction losses. Moreover, the low voltage stress across the diodes allows the use of Schottky rectifiers for alleviating the reverse-recovery current problem, leading to a further reduction in the switching and conduction losses. The circuit is designed to operate in discontinuous conduction mode (DCM) to achieve almost unity power factor naturally and zero current switching at switch turn on. Large and small signal models of the proposed converter are detailed. Detailed open and closed loop analysis, simulation & experimental results are presented.

Original languageEnglish
Title of host publication2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2739-2745
Number of pages7
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - Nov 11 2014

Publication series

Name2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014

Keywords

  • Bridgeless rectifier
  • Discontinuous current mode (DCM)
  • Power factor correction
  • SEPIC rectifier
  • Total harmonics distortion (THD)

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

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