Comparison of basic power cells for quad-active-bridge DC-DC converter in smart transformer

Levy F. Costa, Giampaolo Buticchi, Marco Liserre

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

8 Citations (Scopus)

Abstract

Smart Transformer (ST) is a promising technology, which usually requires a high frequency high voltage dc-dc converter. This paper investigates the application of a Quad-Active-Bridges (QAB) converter using multilevel bridges as a solution for the dc-dc stage of Smart Transformer. The focus of this work is to compare in terms of efficiency 2-level and 3-levels bridges in a QAB converter for ST applications. The considered power cell topologies are: H-bridge, Neutral-Point-Clamped (NPC), Flying-Capacitor (FC) and T-type (TT). The NPC and FC show as main advantage reduced voltage over their semiconductors, which allow the utilization of IGBT and diodes with lower forward drop voltage. Meanwhile, the HB topology shows as advantage reduced current through its device. Thus, a comparative study is performed in order to find out the most suitable topology for this application. Two scenarios are defined and the comparison and final results are presented for both scenarios.

Original languageEnglish
Title of host publication2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815221
DOIs
Publication statusPublished - 27 Oct 2015
Externally publishedYes
Event17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Geneva, Switzerland
Duration: 8 Sep 201510 Sep 2015

Publication series

Name2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015

Conference

Conference17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015
Country/TerritorySwitzerland
CityGeneva
Period8/09/1510/09/15

Keywords

  • DC-DC Converter
  • High Voltage
  • Modularity
  • Multilevel Converter
  • Smart Transformer

ASJC Scopus subject areas

  • Fuel Technology
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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