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Scalable and Accurate Modelling of a WBG-based Bidirectional DC/DC Converter for Electric Drivetrains

Book Contribution - Book Chapter Conference Contribution

This article presents the scalable and accurate modelling technique of a Wideband Gap-based (WBG) bidirectional DC/DC converter to achieve high efficiency while satisfying a set of design constraints. Using Si and SiC-based switches, the converter is scaled for different power ratings (10kW~50kW). Moreover, to scale the passive components of the DC/DC converter empirical design approach is developed for inductor while the systematic approach is used for capacitor selection. The accuracy (~95% accurate) of the inductor design approach is verified by the Finite Element Method (FEM) COMSOL software and accurate loss model is validated using the MATLAB tool Simulink®. The proposed study reduces 60% of core losses in comparing with a conventional silicon core, reduces 2.5% of output voltage ripples while maximum efficiency is obtained up to 98.5% at 30kW load using CAS120M12BM2 SiC MOSFET module.
Book: 32nd Electric Vehicle Symposium (EVS32) Lyon, France, May 19 - 22, 2019
Pages: 1-11
Number of pages: 11
Publication year:2019
  • ORCID: /0000-0002-8650-7341/work/85309585
  • ORCID: /0000-0002-2498-8450/work/83385197
  • ORCID: /0000-0002-9727-7844/work/69122864