Modeling and Analysis of 2/3-Level Dual-Active-Bridge DC-DC Converters with the Five-Level Control Scheme

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Abstract

Two-three (2/3)-level dual-active-bridge (DAB) DC-DC converters have high potential to become a promising solution for medium-voltage DC (MVDC) systems. In this paper, the operating constraints based on the switching characteristics of the 2/3-level DAB converters are analyzed comprehensively with a five-level control scheme, in order to ensure stable and reliable operation. Furthermore, to reduce the complexity of the modeling, a unified power-transfer model is derived based on an equivalent method, and five operating modes are divided, being the references for reliable and efficient control. Simulation results verify the effectiveness of the operating constraints and accuracy of the proposed model.
Original languageEnglish
Title of host publication2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
Number of pages6
PublisherIEEE Press
Publication date2021
Pages1958-1963
ISBN (Print)978-1-7281-8950-5
ISBN (Electronic)978-1-7281-8949-9
DOIs
Publication statusPublished - 2021
Event2021 IEEE Applied Power Electronics Conference and Exposition (APEC) - Phoenix, AZ, USA
Duration: 14 Jun 202117 Jun 2021

Conference

Conference2021 IEEE Applied Power Electronics Conference and Exposition (APEC)
LocationPhoenix, AZ, USA
Period14/06/202117/06/2021
SeriesIEEE Applied Power Electronics Conference and Exposition (APEC)
ISSN1048-2334

Keywords

  • DC-DC converters
  • Modeling
  • Multilevel DAB converter
  • Operating constraints
  • Phase-shift control

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