A Novel Voltage Balancing Strategy using LC for Dual Output Dual-Active-Bridge Converter

Kisu Kim, Jeonghun Kim, Viet C. Nguyen, Honnyong Cha

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

5 Scopus citations

Abstract

In this paper, a novel voltage balancing strategy (VBS) using one inductor and capacitor (LC) is proposed. The proposed VBS can be applied to dual output dual-active-bridge (DAB) converters such as half-bridge and neutral-point-clamped DAB converters. The dual output DAB converters with the proposed VBS achieve output voltage balancing regardless of output load conditions without additional voltage balancing circuit. Although LC is added between transformer and neutral-point of output capacitors, a conventional pulse-width-modulation scheme can be used and the LC has no significant effect on the operation of the converters. Therefore, the dual output DAB converters using the proposed VBS retain most of the characteristics of the conventional dual output DAB converters and achieve voltage balancing effectively. A 3-kW prototype converter was built and tested to verify the performances of the proposed VBS.

Original languageEnglish
Title of host publicationICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1153-1159
Number of pages7
ISBN (Electronic)9788957083130
StatePublished - May 2019
Event10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Publication series

NameICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia

Conference

Conference10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia
Country/TerritoryKorea, Republic of
CityBusan
Period27/05/1930/05/19

Keywords

  • Dual output
  • Dual-active-bridge
  • Voltage balancing
  • Zero-voltage-switching

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