A Dual-Transformer-Based DC-DC Converter for Wide Voltage Gain and Wide ZVS Range by Utilizing a Sub-Optimal Simplified Control

Deliang Chen, Junjun Deng, Mingyang Li, Zhenpo Wang, Yang Li

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

Abstract

A dual-transformer-based full controlled dual bridge DC-DC converter catering to the wide voltage gain and the wide zero voltage switching (ZVS) range is introduced in this work. Its structure is simple without extra passive components, and its wide voltage operating range does not rely on the small leakage inductor design and high transformer turns ratio. The conduction loss can be reduced by the active rectifier structure significantly. With the sub-optimal simplified control strategy, the converter can work in wide ZVS range with sub-minimum current stress. The implementation of the control strategy is a simple single closed loop. Two main operating cases of the converter are analyzed meticulously in this paper, including the conversion power features, current stress features, and soft-switching features. The effectiveness of the discussed converter and control strategy are verified by the experiments.

Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2136-2140
Number of pages5
ISBN (Electronic)9781728151359
DOIs
Publication statusPublished - 2021
Event13th IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Virtual, Online, Canada
Duration: 10 Oct 202114 Oct 2021

Publication series

Name2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings

Conference

Conference13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Country/TerritoryCanada
CityVirtual, Online
Period10/10/2114/10/21

Keywords

  • dual active bridge
  • dual-transformer-based
  • sub-optimal simplified control
  • voltage fed
  • wide ZVS range

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