Lifetime-Based Power Routing of a Quadruple Active Bridge DC/DC Converter

Giampaolo Buticchi, Markus Andresen, Mathias Wutti, Marco Liserre

Research output: Journal PublicationArticlepeer-review

47 Citations (Scopus)


Medium-voltage dc/dc converters have recently acquired importance in the smart grid and dc distribution framework. However, several open issues remain with regard to the reliability of such systems. This paper proposes a modular isolated dc/dc converter with multiple quadruple active bridge building blocks. This design, in combination with a virtual resistor-based control, weights the paths depending on the components wear-out and can balance the stress of the semiconductors in the attempt of extending overall system lifetime. The effectiveness of the approach is demonstrated in simulations and supported with measurements on a small-scale demonstrator with open modules, built in order to verify in real time the capability of controlling the thermal stress of the semiconductors.

Original languageEnglish
Article number7885566
Pages (from-to)8892-8903
Number of pages12
JournalIEEE Transactions on Power Electronics
Issue number11
Publication statusPublished - Nov 2017
Externally publishedYes


  • DC-DC power converters
  • power transformers
  • smart grids

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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