Quadruple Active Bridge DC-DC converter as the basic cell of a modular Smart Transformer

Levy F. Costa, Giampaolo Buticchi, Marco Liserre

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

20 Citations (Scopus)

Abstract

One of the main challenges of a Solid-State transformer (SST) lies in the dc-dc conversion stage. In this work, a Quadruple-Active-Bridge (QAB) dc-dc converter is investigated to be used as the basic module for the whole dc-dc stage. Besides the feature of high power density and soft-switching operation, the QAB converter provides a solution with a reduced number of high frequency transformers, since more bridges are connected to the same multi-winding transformer. To ensure soft-switching in the full operation range of the converter, two modulation strategies are investigated: the phase-shift modulation and the triangular current modulation. The theoretical analysis is developed for both modulation strategies and a comparison between them is carried out. In order to validate the theoretical analysis, a 20 kW prototype was built and tested.

Original languageEnglish
Title of host publication2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2449-2456
Number of pages8
ISBN (Electronic)9781467383936
DOIs
Publication statusPublished - 10 May 2016
Externally publishedYes
Event31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States
Duration: 20 Mar 201624 Mar 2016

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2016-May

Conference

Conference31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Country/TerritoryUnited States
CityLong Beach
Period20/03/1624/03/16

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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