A novel dual output dual-Active-bridge converter with output voltage balancing

Kisu Kim, Jeonghun Kim, Honnyong Cha, Sanghun Kim

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

4 Scopus citations

Abstract

In this paper, a novel dual output dual-active-bridge (DAB) converter with output voltage balancing is proposed. The proposed circuit is similar in structure with conventional DAB converter, but a balancing inductor is added in between the transformer secondary winding and midpoint of dual outputs to balance the two output voltages. As conventional DAB converter, it is operated with phase-shifted pulse-width-modulation control. Although a balancing inductor is added, it does not affect the operation mode significantly. Therefore, the proposed converter retains most of the characteristics of the conventional DAB converter. Although the proposed converter has slightly increased secondary switch current due to the balancing inductor, it achieves balanced output voltages without additional switching devices. A 2.7 kW prototype converter is built and tested to verify the performances of the proposed converter.

Original languageEnglish
Title of host publication34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2279-2285
Number of pages7
ISBN (Electronic)9781538683309
DOIs
StatePublished - 24 May 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2019-March

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Keywords

  • Dual-active-bridge
  • Phase-shift control
  • Voltage balancing
  • Zero-voltage-switching

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