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Concave Ferrite Core for Wireless Power Transfer (WPT)

Author

Listed:
  • Elisa de Melo Henriques

    (School of Engineering and Building Environment, Griffith University, Nathan 4111, Australia)

  • Sascha Stegen

    (School of Engineering and Building Environment, Griffith University, Nathan 4111, Australia)

Abstract

High-efficiency wireless power transfer (WPT) systems can present a perfect solution for fast-charging autonomous guided vehicles (AGV) to improve working hours in high-tech warehouses. Stationary charging stations reduce separation distance, improving coupling factor and power transfer efficiency. Analysis and design of the WPT system focused on maximum power at the load with a SS compensation circuit to reach high efficiency while applying the theory of power transformers design to maximize the power handleability with the physical dimensions. The proposed concept fits small AGVs. This paper proposes a unique ferrite structure for the transmitter ferromagnetic core. This novel shape introduces horizontal angular misalignment resistance due to the transmitter’s omnidirectional concave disc ferrite core combined with an E-core ferrite at the receiver side. The proposed WPT system can output 200 W at 100 kHz. A realistic 3D model has been designed into a symmetrical equivalent to reducing complexity and computational effort. The visualization of the magnetic flux distribution demonstrated that the proposed design has a better path to flow without concentrating flux in small regions, reducing heating losses.

Suggested Citation

  • Elisa de Melo Henriques & Sascha Stegen, 2023. "Concave Ferrite Core for Wireless Power Transfer (WPT)," Energies, MDPI, vol. 16(12), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:12:p:4553-:d:1165237
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    Citations

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    Cited by:

    1. Jaewon Rhee & Seongho Woo & Changmin Lee & Seungyoung Ahn, 2024. "Selection of Ferrite Depending on Permeability and Weight to Enhance Power Transfer Efficiency in Low-Power Wireless Power Transfer Systems," Energies, MDPI, vol. 17(15), pages 1-16, August.
    2. Oussama Allama & Mohamed Hadi Habaebi & Sheroz Khan & Md. Rafiqul Islam & Abdullah Alghaihab, 2023. "Simulation and Control Design of a Midrange WPT Charging System for In-Flight Drones," Energies, MDPI, vol. 16(15), pages 1-19, August.

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