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Simultaneous PWM control to operate the three-phase dual active bridge converter under soft switching in the whole load range

  • Jun Huang
  • , Yue Wang
  • , Zhuoqiang Li
  • , Yongbin Jiang
  • , Wanjun Lei
  • Xi'an Jiaotong University

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

41 Scopus citations

Abstract

The three-phase dual active bridge (3p-DAB) topology has been widely applied in high power dc-dc conversion, which has advantages of bidirectional power transfer, inherent soft switching capability and small filter size. The phase shift control is the conventional modulation strategy for three-phase DAB. However, the conventional control strategy can't operate the converter under soft switching at low loads, especially when the voltage conversion ratio is far from the unit ratio. The aim of this paper is to propose a novel simultaneous pulse-widthmodulation (PWM) control strategy for the three-phase DAB to realize zero-voltage-switching (ZVS) in the whole load range. Seven switching modes are confirmed based on relative relationships of control parameters. The transmission power is calculated and soft switching operation is analyzed in each switching mode. Comparative analysis of ZVS operation with the conventional phase shift control and the proposed control strategy is then presented. A three-phase DAB converter is modeled in Saber and improvements by applying the proposed control strategy are verified by the simulation results.

Original languageEnglish
Title of host publicationAPEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2885-2891
Number of pages7
EditionMay
ISBN (Electronic)9781479967353
DOIs
StatePublished - 8 May 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 15 Mar 201519 Mar 2015

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
NumberMay
Volume2015-May

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/TerritoryUnited States
CityCharlotte
Period15/03/1519/03/15

Keywords

  • Modulation strategy
  • Simultaneous PWM
  • Three-phase DAB
  • ZVS

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