Analysis and Overview of Hybrid Wired and Wireless Bi-Directional EV Charger Systems

Asa, Erdem [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000190884812); Sujan, Vivek [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000269882342); Onar, Omer C. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000292028857)

doi:10.1109/jwpt.2026.3705057

DOE OSTI · 3385018

Analysis and Overview of Hybrid Wired and Wireless Bi-Directional EV Charger Systems

Asa, Erdem [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000190884812)·Sujan, Vivek [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000269882342)·Onar, Omer C. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000292028857)

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Abstract

Here, this paper analyzes and overviews hybrid wired and wireless bi-directional Electric Vehicle (EV) charging systems with a primary focus on resonant compensation methods that enable a unified power conversion architecture. Four compensation configurations based on series–series and LCC–LCC resonant networks are systematically evaluated for both wired transformer-based and wireless coupler-based operation. The analysis examines how coupling conditions, resonant component selection, and auxiliary compensation tuning influence voltage gain characteristics, resonant tank current magnitude and phase, and operating frequency requirements. Normalized frequency-domain results are presented to directly compare reactive current behavior and voltage regulation capability under wired and wireless operating conditions. A 60 kW bi-directional charger case study is used to demonstrate the feasibility of retaining a common hardware platform while accommodating distinct coupling scenarios through compensation tuning rather than structural modification. The presented results provide design-oriented insights into resonant network selection and compensation strategies for scalable and flexible hybrid EV charging systems.

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Hybrid LCC-LCC bi-directional compensation electric vehicle resonant series-series wired/wireless

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Asa, Erdem [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000190884812), Sujan, Vivek [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000269882342), Onar, Omer C. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000292028857). 2026-06-18. Analysis and Overview of Hybrid Wired and Wireless Bi-Directional EV Charger Systems. https://doi.org/10.1109/jwpt.2026.3705057

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