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All Journal Bulletin of Electrical Engineering and Informatics
Mustafa Karavus
Yeditepe University
Electrical & Electronics Engineering

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AC and DC power transfer optimization research using numerical models for wireless heavy-duty EV charging Mustafa Karavus; Ahmet Arif Ergin; Gulten Polat; Bunyamin Esiyok
Bulletin of Electrical Engineering and Informatics Vol 15, No 3: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v15i3.10904

Abstract

Wireless power transfer (WPT) can enable automated charging of heavy-duty electric vehicles (HDEVs), where high power levels require high efficiency and stable operation. This paper compares AC- and DC-based WPT architectures for the TEMSA LD SB E bus using MATLAB/Simulink simulations. The anal ysis is conducted at three operating frequencies (80, 85, and 90 kHz) and for coupling coefficients ranging from 0.10 to 0.90 with 0.10 increments. The AC system uses an eight-switch resonant inverter, whereas the DC system employs a direct DC/DC converter. Transient behavior is solved using a fourth-order Runge–Kutta scheme, and electromagnetic interactions are verified via finite element analysis (FEM). Peak efficiencies of 96.10% (AC) and 97.44% (DC) are achieved at 85 kHz and a coupling coefficient of 0.90. Normalized sensi tivity indices and linear regression identify coupling and frequency as dominant factors, while the DC architecture exhibits reduced sensitivity. The results pro vide quantitative guidance for designing reliable high-power WPT chargers for commercial fleets.
Co-Authors Ahmet Arif Ergin Bunyamin Esiyok Gulten Polat