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Magnet Shape Optimization of Two-Layer Spoke-Type Axial Flux Interior Permanent Magnet Machines

Author

Listed:
  • Feng Chai

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Yunlong Bi

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Yulong Pei

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

Abstract

In this paper, the two-layer spoke-type (TLST) axial flux interior permanent magnet (AFIPM) machine is proposed. Simple flux barriers are added to optimize the air gap flux density, in which way there is no need to change the surface of the rotor. The optimization principle is revealed and the advantages of the TLST AFIPM machine compared with the spoke-type (ST) AFIPM machine are clarified. An optimization design process based on magnetic equivalent circuit combined with idealized and improved air gap flux density waveform is proposed, in which way the calculation time is saved by avoiding an excess of finite element method (FEM) simulations. Finally, 3D FEM simulation is adopted to verify the optimization results.

Suggested Citation

  • Feng Chai & Yunlong Bi & Yulong Pei, 2017. "Magnet Shape Optimization of Two-Layer Spoke-Type Axial Flux Interior Permanent Magnet Machines," Energies, MDPI, vol. 11(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:11:y:2017:i:1:p:15-:d:124196
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    References listed on IDEAS

    as
    1. Xiaoyuan Wang & Sijia Xu & Chunpeng Li & Xiang Li, 2017. "Field-Weakening Performance Improvement of the Yokeless and Segmented Armature Axial Flux Motor for Electric Vehicles," Energies, MDPI, vol. 10(10), pages 1-12, September.
    2. Joya C. Kappatou & Georgios D. Zalokostas & Dimitrios A. Spyratos, 2017. "3-D FEM Analysis, Prototyping and Tests of an Axial Flux Permanent-Magnet Wind Generator," Energies, MDPI, vol. 10(9), pages 1-14, August.
    3. Yunkai Huang & Baocheng Guo & Ahmed Hemeida & Peter Sergeant, 2016. "Analytical Modeling of Static Eccentricities in Axial Flux Permanent-Magnet Machines with Concentrated Windings," Energies, MDPI, vol. 9(11), pages 1-19, October.
    4. Jing Zhao & Bin Li & Zhongxin Gu, 2015. "Research on an Axial Flux PMSM with Radially Sliding Permanent Magnets," Energies, MDPI, vol. 8(3), pages 1-22, February.
    5. Yee Pien Yang & Guan Yu Shih, 2016. "Optimal Design of an Axial-Flux Permanent-Magnet Motor for an Electric Vehicle Based on Driving Scenarios," Energies, MDPI, vol. 9(4), pages 1-18, April.
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