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Analytical Minimization of Interior Permanent Magnet Machine Torque Pulsations by Design of Sculpted Rotor

Author

Listed:
  • Steven Hayslett

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

  • Thang Pham

    (Department of Electrical and Computer 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 new and efficient analytical optimization methodology for the design of rotor features is developed and used in interior permanent magnet motors (IPM). The analytical methodology is based on an extended winding function theory to include the IPM rotor’s primary and secondary reluctance paths and the non-homogeneous airgap of the rotor sculpt features. The shape and placement of the rotor features, derived from the analytical-based optimization process, show the improvement in torque average and torque ripple of the IPM machine at a fraction of computational effort. The analytical optimization results are validated with finite element analysis via an exhaustive search.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:4124-:d:831238
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    References listed on IDEAS

    as
    1. Steven Hayslett & Elias Strangas, 2021. "Analytical Design of Sculpted Rotor Interior Permanent Magnet Machines," Energies, MDPI, vol. 14(16), pages 1-22, August.
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