A Hybrid-bridge based Dual Active Bridge DC/DC Converter with Compact Structure

Jiahui Wu, Dong Liu*, Yanbo Wang, Zhe Chen

*Corresponding author

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

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Abstract

In this paper, a new hybrid-bridge based active bridge (DAB) converter is proposed for interfacing the low-voltage and medium voltage in the DC grids. The proposed converter is composed of a two-level full-bridge and a three-level half-bridge circuit, which only has eight power switches in total. Comparing with the conventional hybrid-bridge based DAB converter with diode-clamped TL bridge, the proposed converter reduces the main device count by removing the clamping diodes. Thus, the proposed converter has a more compact circuit structure and a lower cost. Besides, the proposed converter can achieve the zero-voltage-switching (ZVS) for both primary-side and secondary-side power switches. The basic operation principle, characteristics, and performances of the proposed converter are analyzed in detail. Finally, the simulation results are provided to verify the proposed converter.
Original languageEnglish
Title of host publication2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL)
Number of pages6
PublisherIEEE
Publication date2020
Pages1-6
Article number9265659
ISBN (Print)978-1-7281-7161-6
ISBN (Electronic)978-1-7281-7160-9
DOIs
Publication statusPublished - 2020
Event21th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark
Duration: 9 Nov 202012 Nov 2020

Conference

Conference21th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
CountryDenmark
CityAalborg
Period09/11/202012/11/2020
SeriesIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

Keywords

  • dual-active-bridge (DAB) converter
  • three-level (TL) bridge
  • reduced device count (RDC)
  • zero-voltage-switching (ZVS)

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