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Design of an Axial-Type Magnetic Gear with Auxiliary Flux-Enhancing Structure

Author

Listed:
  • Fang Li

    (Robotics and Autonomous Systems Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511453, China)

  • Hang Zhao

    (Robotics and Autonomous Systems Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511453, China)

  • Xiangdong Su

    (Robotics and Autonomous Systems Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511453, China)

Abstract

In this paper, a new axial-type magnetic gear with an auxiliary flux-enhancing structure (AFS-AMG) is proposed. Compared to conventional AMGs, it has a higher torque density and higher permanent magnet (PM) utilization factor. Firstly, the design rules and operating principles of the proposed AFS-AMG are elaborated. Then, the mapping relation between the radial-type magnetic gears (RMGs) and AMGs are elucidated. Compared to its counterparts in RMGs, the AFS-AMG achieves a small size. Then, the geometrical parameters of the AFS-AMG are optimized to obtain better electromagnetic performance, where the torque density per volume and per PM volume is adopted as the evaluation standard. Finally, three different AMG topologies are constructed in finite element analysis (FEA) software for comparison. It is proven that the AFS-AMG has the largest torque density per volume and per PM volume.

Suggested Citation

  • Fang Li & Hang Zhao & Xiangdong Su, 2024. "Design of an Axial-Type Magnetic Gear with Auxiliary Flux-Enhancing Structure," Energies, MDPI, vol. 17(9), pages 1-20, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:9:p:2207-:d:1388397
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