A comparative evaluation of series-resonant, bidirectional optimal trajectory controlled isolated DC-DC converters

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Abstract

Recently, a new dynamic control algorithm was proposed for a series-resonant converter, i.e. bidirectional optimal trajectory control. It regulates the amount of charge that is drawn from, or supplied to, the sources that are connected to the primary and secondary input ports of the converter. Additionally, it realizes a dead-beat control while guaranteeing zero voltage switching of all switches over the entire input and output voltage range. This paper presents a comparative evaluation of a bidirectional optimal trajectory controlled, series-resonant converters with four different switching leg configurations. The comparison comprises an analysis of bidirectional optimal trajectory control on the semiconductor chip area, the resonant tank volume and losses, and the operating frequency range of the converter. Also included is the implementation complexity, which covers both the measurement and computational effort. Evaluating all advantages and drawbacks of the compared switching leg configurations, the 3-level full-bridge full-bridge series-resonant converter shows the most advantageous properties for a series-resonant, bidirectional optimal trajectory controlled isolated DC-DC converter.

Original languageEnglish
Title of host publication2019 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages10
ISBN (Electronic)978-9-0758-1531-3
DOIs
Publication statusPublished - Sep 2019
Event21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe - Via Magazzini del Cotone, Genova, Italy
Duration: 2 Sep 20196 Sep 2019
http://epe-ecce-conferences.com/epe2019/

Conference

Conference21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe
Abbreviated titleEPE2019ECCE
CountryItaly
CityGenova
Period2/09/196/09/19
Internet address

Keywords

  • Converter control
  • Multilevel converters
  • Optimal control
  • Predictive control
  • Resonant converter
  • ZVS converter

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