Hybrid resonant half-bridge DC/DC converter with wide input voltage range

Bumyun Kim, Sooa Kim, Dong Young Huh, Jung Hwan Choi, Minsung Kim

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

17 Scopus citations

Abstract

Photovoltaic power conditioning systems (PCSs) requires a high-boost ratio over wide-input-range along with the isolation. This paper presents a hybrid resonant half-bridge dc/dc converter for photovoltaic power applications. This converter operates in a resonant half-bridge converter (RHBC) mode when the input voltage is higher than nominal input voltage. When the input voltage is lower than the nominal input voltage, the converter operates in a resonant boost (RB) mode in which the resonant half-bridge circuit on the secondary side boosts the secondary side resonant inductor current to achieve high boost-ratio. As a result, the proposed converter achieves high boost-ratio over wide-input-range with simple circuit structures. Detailed analysis of the converter operation is discussed along with the experiment using 600-W prototype to confirm the theoretical analysis and validity of the proposed converter.

Original languageEnglish
Title of host publicationAPEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1876-1881
Number of pages6
ISBN (Electronic)9781538611807
DOIs
StatePublished - 18 Apr 2018
Event33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States
Duration: 4 Mar 20188 Mar 2018

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2018-March

Conference

Conference33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Country/TerritoryUnited States
CitySan Antonio
Period4/03/188/03/18

Keywords

  • High step-up
  • Photovoltaic
  • Resonant half-bridge circuit
  • Wide input voltage range

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