Comparative Analysis of Multiple Active Bridge Converters Configurations in Modular Smart Transformer

Levy Ferreira Costa, Felix Hoffmann, Giampaolo Buticchi, Marco Liserre

Research output: Journal PublicationArticlepeer-review

72 Citations (Scopus)


In this paper, the quadruple active bridge (QAB) dc-dc converter is proposed to be used as a building block to implement the dc-dc stage of a smart transformer (ST). Different configurations (symmetrical, asymmetrical, and rated for voltage/power) for this converter are considered for investigation. Four different architectures of ST, including one based on the dual active bridge converter as a benchmark and three based on the QAB converter, are presented and compared in terms of cost, efficiency, reliability, and implementation complexity. As an additional contribution, different semiconductor technologies (silicon IGBT and silicon-carbide MOSFETs) are evaluated in order to verify their impact on ST application. The design for each architecture is described and the results are compared. In order to validate the theoretical analysis developed in this paper, a 20-kW prototype is built and experimented.

Original languageEnglish
Article number8322202
Pages (from-to)191-202
Number of pages12
JournalIEEE Transactions on Industrial Electronics
Issue number1
Publication statusPublished - Jan 2019
Externally publishedYes


  • DC-DC converter
  • multiple active bridge converter
  • multiwinding transformer
  • smart transformer (ST)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Comparative Analysis of Multiple Active Bridge Converters Configurations in Modular Smart Transformer'. Together they form a unique fingerprint.

Cite this