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Design of Outer-Rotor Permanent-Magnet-Assisted Synchronous Reluctance Motor for Electric Vehicles

Author

Listed:
  • Armagan Bozkurt

    (Faculty of Technical Education, Pamukkale University, Denizli 20160, Turkey)

  • Ahmet Fevzi Baba

    (Faculty of Technology, Marmara University, Istanbul 34722, Turkey)

  • Yusuf Oner

    (Faculty of Engineering, Pamukkale University, Denizli 20160, Turkey)

Abstract

Today’s automotive industry has focused its studies on electric vehicles (EVs) or hybrid electric vehicles (HEVs) rather than gasoline-powered vehicles. For this reason, more investment has been made in electric motors with high efficiency, high torque density, and high-power factor to be used in both EVs and HEVs. In this study, an outer-rotor permanent-magnet-assisted synchronous reluctance motor (PMaSynRM) with a new rotor topology was designed for use in an EV. The design has a transversally laminated anisotropic (TLA) rotor structure. In addition, neodymium-iron-boron (NdFeB) magnets were used in rotor topology. The stator slots were designed as distributed windings, so torque ripples are minimized. At the same time, the maximum electromagnetic torque was achieved. The analysis of the designed motor was carried out using the finite element method (FEM). Optimal values of motor parameters were obtained by improving the rotor geometry of the three-phase PMaSynRM in order to obtain maximum torque and minimum torque ripple in the design. The motor is in a 48/8 slot/pole combination, a speed of 750 rpm and a power of 1 kW. The simulation results showed that the design achieved maximum torque and minimum torque ripple.

Suggested Citation

  • Armagan Bozkurt & Ahmet Fevzi Baba & Yusuf Oner, 2021. "Design of Outer-Rotor Permanent-Magnet-Assisted Synchronous Reluctance Motor for Electric Vehicles," Energies, MDPI, vol. 14(13), pages 1-12, June.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3739-:d:579893
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    References listed on IDEAS

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    1. Mustafa Tumbek & Selami Kesler, 2019. "Design and Implementation of a Low Power Outer-Rotor Line-Start Permanent-Magnet Synchronous Motor for Ultra-Light Electric Vehicles," Energies, MDPI, vol. 12(16), pages 1-20, August.
    2. Thanh Anh Huynh & Min-Fu Hsieh, 2018. "Performance Analysis of Permanent Magnet Motors for Electric Vehicles (EV) Traction Considering Driving Cycles," Energies, MDPI, vol. 11(6), pages 1-24, May.
    3. Mohamed Nabil Fathy Ibrahim & Essam Rashad & Peter Sergeant, 2017. "Performance Comparison of Conventional Synchronous Reluctance Machines and PM-Assisted Types with Combined Star–Delta Winding," Energies, MDPI, vol. 10(10), pages 1-18, September.
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    Cited by:

    1. Ozturk Tosun & Necibe Fusun Oyman Serteller, 2022. "The Design of the Outer-Rotor Brushless DC Motor and an Investigation of Motor Axial-Length-to-Pole-Pitch Ratio," Sustainability, MDPI, vol. 14(19), pages 1-14, October.
    2. Jin Wang & Yan Li & Shengnan Wu & Zhanyang Yu & Lihui Chen, 2022. "Analysis of the Influence of Parameter Condition on Whole Load Power Factor and Efficiency of Line Start Permanent Magnet Assisted Synchronous Reluctance Motor," Energies, MDPI, vol. 15(11), pages 1-16, May.
    3. Jiongjiong Cai & Peng Ke & Xiao Qu & Zihui Wang, 2022. "Research on the Design of Auxiliary Generator for Enthalpy Reduction and Steady Speed Scroll Expander," Energies, MDPI, vol. 15(9), pages 1-17, April.
    4. Kritika Deepak & Mohamed Amine Frikha & Yassine Benômar & Mohamed El Baghdadi & Omar Hegazy, 2023. "In-Wheel Motor Drive Systems for Electric Vehicles: State of the Art, Challenges, and Future Trends," Energies, MDPI, vol. 16(7), pages 1-31, March.

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