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Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines

Author

Listed:
  • Steven Hayslett

    (Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824, USA)

  • Elias Strangas

    (Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA)

Abstract

A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torque harmonics. The placement of traditional rotor features along with sculpt features are utilized to minimize torque ripple and maximize average torque. We extend the winding function theory to include the IPM rotor’s primary and secondary reluctance paths and the non-homogeneous airgap of the rotor sculpt features. A new analytical winding function model of the single-V IPM machine is introduced, which considers the sculpted rotor and how this model can be used in the design approach of machines. Results are validated with finite elements. Rotor feature trends are established and utilized to increase design intuition and reduce dependency upon the lengthy design of experiment optimization processes.

Suggested Citation

  • Steven Hayslett & Elias Strangas, 2021. "Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines," Energies, MDPI, vol. 14(16), pages 1-22, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5109-:d:617383
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    References listed on IDEAS

    as
    1. Anmol Aggarwal & Elias G. Strangas, 2019. "Review of Detection Methods of Static Eccentricity for Interior Permanent Magnet Synchronous Machine," Energies, MDPI, vol. 12(21), pages 1-20, October.
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    Cited by:

    1. Steven Hayslett & Thang Pham & Elias Strangas, 2022. "Analytical Minimization of Interior Permanent Magnet Machine Torque Pulsations by Design of Sculpted Rotor," Energies, MDPI, vol. 15(11), pages 1-17, June.
    2. Anmol Aggarwal & Matthew Meier & Elias Strangas & John Agapiou, 2021. "Analysis of Modular Stator PMSM Manufactured Using Oriented Steel," Energies, MDPI, vol. 14(20), pages 1-19, October.
    3. Huihui Geng & Xueyi Zhang & Shilong Yan & Yufeng Zhang & Lei Wang & Yutong Han & Wei Wang, 2022. "Magnetic Field Analysis of an Inner-Mounted Permanent Magnet Synchronous Motor for New Energy Vehicles," Energies, MDPI, vol. 15(11), pages 1-22, June.

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