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Design and Analysis of Three Phase Axial Flux Permanent Magnet Machine with Different PM Shapes for Electric Vehicles

Author

Listed:
  • Ziaul Islam

    (Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad 22060, Pakistan)

  • Faisal Khan

    (Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad 22060, Pakistan)

  • Basharat Ullah

    (Department of Electrical and Computer Engineering, COMSATS University Islamabad, Abbottabad 22060, Pakistan)

  • Ahmad H. Milyani

    (Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
    Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia)

  • Abdullah Ahmed Azhari

    (The Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia)

Abstract

Axial flux permanent magnet (AFPM) machines are good candidates for electric vehicle applications due to their high torque density, improved efficiency, and better flux distribution; thus, they are often used. A dual-rotor single-stator AFPM machine with four differently shaped permanent magnet (PM) rotors is investigated. The main aim of this paper is to enhance the average torque while minimizing the cogging torque and torque ripples at the expense of low PM volume. The proposed machines are analyzed in terms of flux linkage, back-EMF, cogging torque, average torque, and torque ripples. The analysis reveals that the machine with an arc-shaped PM rotor performs better than the others. In addition, the trapozoidal arc-shaped PM used in the AFPM machine outperforms the hexagonal, skew arc, and traditional trapezoidal PMs. The torque density of the trapezoidal-shaped PM machine is 40.23 (KNm/ m 3 ), while that of the hexagonal shape is 32.46 (KNm/ m 3 ), that of the skew arc shape is 39.78 (KNm/ m 3 ), and that of the arc shape is 50.38 (KNm/ m 3 ).

Suggested Citation

  • Ziaul Islam & Faisal Khan & Basharat Ullah & Ahmad H. Milyani & Abdullah Ahmed Azhari, 2022. "Design and Analysis of Three Phase Axial Flux Permanent Magnet Machine with Different PM Shapes for Electric Vehicles," Energies, MDPI, vol. 15(20), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:20:p:7533-:d:940580
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    References listed on IDEAS

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    1. Hina Usman & Junaid Ikram & Khurram Saleem Alimgeer & Muhammad Yousuf & Syed Sabir Hussain Bukhari & Jong-Suk Ro, 2021. "Analysis and Optimization of Axial Flux Permanent Magnet Machine for Cogging Torque Reduction," Mathematics, MDPI, vol. 9(15), pages 1-14, July.
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