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High Efficiency Dual-Active-Bridge Converter with Improved Minimum Backflow Power Modulation Strategy

  • Yutong Wang
  • , Dongxin Guo
  • , Panbao Wang*
  • , Dianguo Xu
  • *Corresponding author for this work
  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

Dual-active-bridge converter using the single-phase-shift control makes the converter generate large backflow power when the input voltage and output voltage are not matched, especially under light loads condition. For this reason, this paper proposes a DPS-based minimum backflow power modulation strategy with full operating mode and full power range. Considering the power limitations of different operating modes, the transmission power controlled by DPS is divided into four different load ranges. On this basis, the optimal phase shift angle at optimal backflow power is obtained by determining the optimization path in various cases using the Karush-Kuhn-Tucker (KKT) function, which enhances the system efficiency. Finally, a platform is built to verify the feasibility of the proposed minimum backflow power strategy.

Original languageEnglish
Title of host publicationPEDG 2025 - 2025 IEEE 16th International Symposium on Power Electronics for Distributed Generation Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages140-145
Number of pages6
ISBN (Electronic)9798331585495
DOIs
StatePublished - 2025
Externally publishedYes
Event16th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2025 - Nanjing, China
Duration: 28 Mar 2025 → …

Publication series

NamePEDG 2025 - 2025 IEEE 16th International Symposium on Power Electronics for Distributed Generation Systems

Conference

Conference16th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2025
Country/TerritoryChina
CityNanjing
Period28/03/25 → …

Keywords

  • dual-active-bridge
  • dual-phase-shift
  • full power range
  • minimizing backflow power

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