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A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry

Author

Listed:
  • Massimo Caruso

    (Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, Italy)

  • Antonino Oscar Di Tommaso

    (Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, Italy)

  • Rosario Miceli

    (Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, Italy)

  • Fabio Viola

    (Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, Italy)

Abstract

This article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive modification of the rotor lamination geometry. This procedure can be generalized for the main topologies of PMSM, independently of the number of stator slots or the location of the permanent magnets. For this purpose, a basic IPMSM structure is analyzed by means of the FEM (finite element method) approach, and then, several other IPMSM geometries, obtained by adequately modifying the rotor lamination geometry of the basic IPMSM model without changing its stator configuration, are proposed and discussed. The trends of the cogging torque generated by each model are computed and compared. From this comparison, it is demonstrated that, by simply acting on the shape of the rotor lamination and by choosing the optimized pattern, the cogging torque components can be theoretically canceled.

Suggested Citation

  • Massimo Caruso & Antonino Oscar Di Tommaso & Rosario Miceli & Fabio Viola, 2022. "A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry," Energies, MDPI, vol. 15(14), pages 1-19, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:4956-:d:857206
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    References listed on IDEAS

    as
    1. Zbigniew Goryca & Sebastian Różowicz & Antoni Różowicz & Artur Pakosz & Marcin Leśko & Henryk Wachta, 2020. "Impact of Selected Methods of Cogging Torque Reduction in Multipolar Permanent-Magnet Machines," Energies, MDPI, vol. 13(22), pages 1-14, November.
    2. Pierpaolo Dini & Sergio Saponara, 2019. "Cogging Torque Reduction in Brushless Motors by a Nonlinear Control Technique," Energies, MDPI, vol. 12(11), pages 1-20, June.
    3. Massimo Caruso & Antonino Oscar Di Tommaso & Fabrizio Marignetti & Rosario Miceli & Giuseppe Ricco Galluzzo, 2018. "A General Mathematical Formulation for Winding Layout Arrangement of Electrical Machines," Energies, MDPI, vol. 11(2), pages 1-24, February.
    4. Myeong-Hwan Hwang & Hae-Sol Lee & Hyun-Rok Cha, 2018. "Analysis of Torque Ripple and Cogging Torque Reduction in Electric Vehicle Traction Platform Applying Rotor Notched Design," Energies, MDPI, vol. 11(11), pages 1-14, November.
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    Cited by:

    1. Linwei Wang & Shuai Lu & Yangming Chen & Shiya Wang, 2023. "An In-Phase Unit Slot-Opening Shift Method for Cogging Torque Reduction in Interior Permanent Magnet Machine," Mathematics, MDPI, vol. 11(7), pages 1-14, April.

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