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This study presents a finite element method (FEM) analysis of synchronous reluctance electric motors assisted by permanent magnets, with a focus on the influence of inclined stator slots (ISS) on torque generation. Using MATLAB’s PDE toolbox, two-dimensional electromagnetic simulations were performed for a conventional electric motor (EM) and EMISSs with 12, 24, and 36 stator slots. An optimal inclination angle was derived based on geometric proportions to minimize magnetic reluctance. Simulation results show that as the slot inclination approaches the optimal angle, torque increases significantly compared to radial slot configurations. A procedure is also proposed to compute the optimal inclination based on slot dimensions and to determine coil arrangements for mono-phase, bi-phase, and three-phase designs. These findings highlight the practical benefits of EMISS configurations for electric vehicle applications.

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FEM Analysis in MATLAB of Stators with Inclined Slots for Synchronous Reluctance Motors in Electric Vehicles

  • 章节

  • 发表日期：

    2026年

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  • Daniel Armando Serrano-Huerta,
  • Abisai Jaime Reséndiz-Barrón,
  • Abraham Medina,
  • Abel López-Villa,
  • Yolanda Jiménez-Flores,
  • J. R. Hernández-Juárez

摘要

This study presents a finite element method (FEM) analysis of synchronous reluctance electric motors assisted by permanent magnets, with a focus on the influence of inclined stator slots (ISS) on torque generation. Using MATLAB’s PDE toolbox, two-dimensional electromagnetic simulations were performed for a conventional electric motor (EM) and EMISSs with 12, 24, and 36 stator slots. An optimal inclination angle was derived based on geometric proportions to minimize magnetic reluctance. Simulation results show that as the slot inclination approaches the optimal angle, torque increases significantly compared to radial slot configurations. A procedure is also proposed to compute the optimal inclination based on slot dimensions and to determine coil arrangements for mono-phase, bi-phase, and three-phase designs. These findings highlight the practical benefits of EMISS configurations for electric vehicle applications.