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100 kW Three-Phase Wireless Charger for EV: Experimental Validation Adopting Opposition Method

Author

Listed:
  • Jacopo Colussi

    (Politecnico di Torino, Department of Energy, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy)

  • Alessandro La Ganga

    (Politecnico di Torino, Department of Energy, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy)

  • Roberto Re

    (Politecnico di Torino, Department of Energy, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy)

  • Paolo Guglielmi

    (Politecnico di Torino, Department of Energy, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy)

  • Eric Armando

    (Politecnico di Torino, Department of Energy, Corso Duca Degli Abruzzi 24, 10129 Torino, Italy)

Abstract

This paper presents the experimental validation, using the opposition method, of a high-power three-phase Wireless-Power-Transfer (WPT) system for automotive applications. The system under test consists of three coils with circular sector shape overlapped to minimize the mutual cross-coupling, a three-phase inverter at primary side and a three-phase rectifier at receiver side. In fact thanks to the delta configuration used to connect the coils of the electromagnetic structure, a three-phase Silicon Carbide (SiC) inverter is driving the transmitter side. The resonance tank capacitors are placed outside of the delta configuration reducing in this way their voltage sizing. This WPT system is used as a 100 kW–85 kHz ultrafast battery charger for light delivery vehicle directly supplied by the power grid of tramways. The adopted test-bench for the WPT charger consists of adding circulating boost converter to the system under test to perform the opposition method technique. The experimental results prove the effectiveness of the proposed structure together with the validation of fully exploited simulation analysis. This is demonstrated by transferring 100 kW with more than 94 % DC-to-DC efficiency over 50 mm air gap in aligned conditions. Furthermore, testing of Zero-Current and Zero-Voltage commutations are performed to test the performance of SiC technology employed.

Suggested Citation

  • Jacopo Colussi & Alessandro La Ganga & Roberto Re & Paolo Guglielmi & Eric Armando, 2021. "100 kW Three-Phase Wireless Charger for EV: Experimental Validation Adopting Opposition Method," Energies, MDPI, vol. 14(8), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2113-:d:533477
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    Citations

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    Cited by:

    1. Jacopo Colussi & Roberto Re & Paolo Guglielmi, 2022. "Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System," Energies, MDPI, vol. 15(14), pages 1-18, July.
    2. Yuan Li & Shumei Zhang & Ze Cheng, 2021. "Double-Coil Dynamic Shielding Technology for Wireless Power Transmission in Electric Vehicles," Energies, MDPI, vol. 14(17), pages 1-20, August.

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