Zero-voltage and Zero-current Switching (ZVZCS) Full-Bridge Three-Level DC/DC Converter

Dong Liu, Yanbo Wang, Zhe Chen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

This paper proposes a new zero-voltage and zero-current switching (ZVZCS) full-bridge (FB) three-level DC/DC converter (TLDC) with the corresponding modulation strategy for the high-input-voltage and high-power applications. The merits of the proposed converter with the corresponding modulation strategy are concluded as follows. In comparison with the conventional zero-voltage switching (ZVS) FB TLDC, 1) only one blocking capacitor is added to realize ZVZCS; 2) the primary circulating current and duty cycle loss can be effectively reduced. In addition, the wide input voltage range can be satisfied because the proposed corresponding modulation strategy is composed of two working patterns. More significantly, the conduction losses of the primary power devices can be greatly reduced due to removing the primary blocking diode in comparison with other ZVZCS FB TLDCs. Finally, the simulation and experimental results are presented to verify the proposed converter with the corresponding modulation strategy.
Original languageEnglish
Title of host publicationProceedings of 2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
Number of pages6
PublisherIEEE Press
Publication dateJun 2020
Pages1353-1358
Article number9124442
ISBN (Electronic)9781728148298
DOIs
Publication statusPublished - Jun 2020
Event2020 IEEE Applied Power Electronics Conference and Exposition (APEC) - New Orleans, LA, United States
Duration: 15 Mar 202019 Mar 2020

Conference

Conference2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
CountryUnited States
CityNew Orleans, LA
Period15/03/202019/03/2020
SeriesIEEE Applied Power Electronics Conference and Exposition (APEC)
ISSN1048-2334

Keywords

  • Full-bridge (FB)
  • Three-level DC/DC converter
  • Wide input voltage range
  • Zero-voltage and zero-current switching (ZVZCS)

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