Forward-flyback resonant converter for high-efficient medium-power photovoltaic applications

Oscar Andres Montes, Sungho Son, Sooa Kim, Hwasoo Seok, Jin S. Lee, Minsung Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Scopus citations

Abstract

In this paper, a quasi-resonant forward-flyback converter is proposed for photovoltaic power system. Since the output of forward-flyback converter is connected in series, the proposed circuit offers high-step up conversion. The quasi-resonant forward circuit that consists of a transformer leakage inductance and a resonant capacitor generates almost sinusoidal currents during the switch on-time so the primary switching stress has been significantly reduced. The flyback circuit transfers the energy stored in the magnetizing inductance to the load during the switch off-time. Design guidelines of the circuit parameters are presented. To verify the proposed circuit design, a 400-W experimental prototype has been designed, fabricated, and tested. Simulation and experimental results verify the effectiveness of the proposed circuit design.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1223-1228
Number of pages6
ISBN (Electronic)9781509053667
DOIs
StatePublished - 17 May 2017
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 26 Mar 201730 Mar 2017

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period26/03/1730/03/17

Keywords

  • Forward-flyback
  • High-efficiency
  • Medium power capacity
  • Photovoltaic power applications
  • Resonant
  • Zero current switching

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