Comparative Analysis of Single-Phase Shift and Extended Phase Shift Modulations in Dual Active Bridge Converters for Fast EV Charging

Authors

  • Mohamed R. Farid Electrical Power Engineering Department, Faculty of Engineering, Egypt-Japan University of Science and Technology (E-JUST), New Borg El Arab City, Alexandria 21934, Egypt; Electrical Engineering Department, Benha Faculty of Engineering, Benha University, Benha 13518, Egypt Author
  • Ahmed L. Elrefai Electrical Power Engineering Department, Faculty of Engineering, Egypt-Japan University of Science and Technology (E-JUST), New Borg El Arab City, Alexandria 21934, Egypt; Electrical Power Engineering Department, Cairo University, Giza 12613, Egypt Author
  • Sobhy M. Abdelkader Electrical Power Engineering Department, Faculty of Engineering, Egypt-Japan University of Science and Technology (E-JUST), New Borg El Arab City, Alexandria 21934, Egypt; Electrical Engineering Department, Mansoura University, El-Mansoura 35516, Egypt Author

DOI:

https://doi.org/10.52152/4559

Keywords:

EV fast charging, DAB, Silicon carbide devices, Single Phase Shift, Extended Phase Shift.

Abstract

This paper presents a comprehensive comparison between Single-Phase Shift Modulation (SPSM) and Extended Phase Shift Modulation (EPSM) in Dual Active Bridge (DAB) converters, focusing on their switching losses, performance, and efficiency under various load conditions. The analysis is conducted using SPICE-based simulations to evaluate the converters' behaviour under low, medium, and high-loading conditions. The DAB converter is designed for fast-charging electric vehicle (EV) applications with the design specifications of 5 kW, 800V/400V employing Silicon Carbide (SiC) MOSFETs with switching frequency of 100 kHz. The comprehensive comparative analysis of the two modulation strategies yields critical insights regarding their appropriateness for various applications and operational scenarios, which is fundamental to achieving efficient high-power DC-DC conversion in advanced electric vehicle fast charging systems.

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Published

2025-07-25

Issue

Vol. 23 No. 4 (2025)

Section

Articles

License

Copyright (c) 2025 Mohamed R. Farid, Ahmed L. Elrefai, Sobhy M. Abdelkader (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.