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A New 7 kW Air-Core Transformer at 1.5 MHz for Embedded Isolated DC/DC Application

Author

Listed:
  • Valentin Rigot

    (Laboratoire de Génie Electrique et Electronique de Paris, CNRS, CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
    Vedecom, 23 bis Allée des Marronniers, 78000 Versailles, France)

  • Tanguy Phulpin

    (Laboratoire de Génie Electrique et Electronique de Paris, CNRS, CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France)

  • Jihen Sakly

    (Vedecom, 23 bis Allée des Marronniers, 78000 Versailles, France)

  • Daniel Sadarnac

    (Laboratoire de Génie Electrique et Electronique de Paris, CNRS, CentraleSupélec, Université Paris-Saclay, 91190 Gif-sur-Yvette, France)

Abstract

This paper presents the study of air-core transformers for electric vehicles, developing them for medium-power (tens of kWs) converter applications specifically used at a high frequency. Air-core transformers have the advantage of lacking magnetic saturation and iron losses, making them suitable for high-frequency applications. We designed and manufactured a transformer for a determined frequency and inductance value. The design of this passive component aims to both keep the magnetic field inside the transformer and manage the thermal energy efficiently. The electrical, magnetic, and thermal properties are simulated and then verified by experiments with a specific test bench. The transformer reaches high performances for a higher frequency than usual for an equivalent power transfer in automotive applications.

Suggested Citation

  • Valentin Rigot & Tanguy Phulpin & Jihen Sakly & Daniel Sadarnac, 2022. "A New 7 kW Air-Core Transformer at 1.5 MHz for Embedded Isolated DC/DC Application," Energies, MDPI, vol. 15(14), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5211-:d:865754
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    References listed on IDEAS

    as
    1. Wassim Kabbara & Mohamed Bensetti & Tanguy Phulpin & Antoine Caillierez & Serge Loudot & Daniel Sadarnac, 2022. "A Control Strategy to Avoid Drop and Inrush Currents during Transient Phases in a Multi-Transmitters DIPT System," Energies, MDPI, vol. 15(8), pages 1-18, April.
    2. Yao Pei & Yann Le Bihan & Mohamed Bensetti & Lionel Pichon, 2021. "Comparison of Coupling Coils for Static Inductive Power-Transfer Systems Taking into Account Sources of Uncertainty," Sustainability, MDPI, vol. 13(11), pages 1-13, June.
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