Modelling and Control of a 50kW SiC-based Isolated DAB Converter for Off-Board Chargers of Electric Vehicles

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

The paper proposes the design of a 50kW isolated DC-DC Dual Active Bridge (DAB) converter for a high-power off-board charger for Electric vehicles (EVs) applications. The detailed electro-thermal simulation of the wide band gap (WBG) (i.e., SiC MOSFETs)-based bidirectional DAB is performed to determine the performance of the system in terms of efficiency at high-power operation. A linear model based on system identification has been created to design the control approach accurately. Dual-loop phase shift constant-current (CC) and constant-voltage (CV) control strategy is implemented on the dynamic simulation model at a higher switching frequency to validate the stability of the designed controller. The proposed DAB operates with an acceptable ripple and dual-loop voltage-current control that comprehensively tracks reference commands, while the maximum efficiency achieved is approximately 97.5% at rated power.
Original languageEnglish
Title of host publication2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)
Place of PublicationHanover, Germany
PublisherIEEE
PagesP1-P9
Number of pages9
ISBN (Electronic)978-9-0758-1539-9
ISBN (Print)978-1-6654-8700-9
Publication statusPublished - 9 Sep 2022
Event2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe) - Hanover, Germany
Duration: 5 Sep 20229 Sep 2022
https://epe2022.com/

Conference

Conference2022 24th European Conference on Power Electronics and Applications (EPE'22 ECCE Europe)
CountryGermany
CityHanover
Period5/09/229/09/22
Internet address

Bibliographical note

Publisher Copyright:
© 2022 EPE Association.

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

Keywords

  • Bi-directional
  • Charging infrastructure for EVs
  • Wide bandgap
  • Power flow control strategy

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