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Analysis of Torque Ripple and Cogging Torque Reduction in Electric Vehicle Traction Platform Applying Rotor Notched Design

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  • Myeong-Hwan Hwang

    (EV Components & Materials R&D Group, Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 beon-gil, Buk-gu, Gwangju 61012, Korea
    Department of Electrical Engineering, Chonnam National University, 77 Youngbong-ro, Buk-gu, Gwangju 61186, Korea)

  • Hae-Sol Lee

    (EV Components & Materials R&D Group, Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 beon-gil, Buk-gu, Gwangju 61012, Korea
    Robotics and Virtual Engineering, Korea University of Science and Technology, Daejeon 34113, Korea)

  • Hyun-Rok Cha

    (EV Components & Materials R&D Group, Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 beon-gil, Buk-gu, Gwangju 61012, Korea)

Abstract

Drive motors, which are used in the drive modules of electric cars, are interior permanent magnet motors. These motors tend to have high cogging torque and torque ripple, which leads to the generation of high vibration and noise. Several studies have attempted to determine methods of reducing the cogging torque and torque ripple in interior permanent magnet motors. The primary methods of reducing the cogging torque involve either electric control or mechanical means. Herein, the authors focused on a mechanical method to reduce the cogging torque and torque ripple. Although various methods of reducing vibration and noise mechanically exist, there is no widely-known comparative analyses on reducing the vibration and noise by designing a notched rotor shape. Therefore, this paper proposes a method of reducing vibration and noise mechanically by designing a notched rotor shape. In the comparative analysis performed herein, the motor stator and rotor were set to be the same size, and electromagnetic field analysis was performed to determine a notch shape that is suitable for the rotor and that generates reasonable vibration and noise.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:11:p:3053-:d:181027
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    Citations

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    Cited by:

    1. Branislav Dobrucky & Slavomir Kascak & Michal Frivaldsky & Michal Prazenica, 2021. "Determination and Compensation of Non-Active Torques for Parallel HEV Using PMSM/IM Motor(s)," Energies, MDPI, vol. 14(10), pages 1-26, May.
    2. Minhyeok Lee & Yunkyung Hwang & Kwanghee Nam, 2021. "Torque Ripple Minimizing of Uniform Slot Machines with Delta Rotor via Subdomain Analysis," Energies, MDPI, vol. 14(21), pages 1-18, November.
    3. 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.
    4. Chung-Seong Lee & Kyoung-Soo Cha & Jin-Cheol Park & Myung-Seop Lim, 2020. "Tolerance-Insensitive Design of the Magnet Shape for a Surface Permanent Magnet Synchronous Motor," Energies, MDPI, vol. 13(6), pages 1-16, March.
    5. Thyago Estrabis & Gabriel Gentil & Raymundo Cordero, 2021. "Development of a Resolver-to-Digital Converter Based on Second-Order Difference Generalized Predictive Control," Energies, MDPI, vol. 14(2), pages 1-22, January.
    6. Hyungkwan Jang & Hyunwoo Kim & Huai-Cong Liu & Ho-Joon Lee & Ju Lee, 2021. "Investigation on the Torque Ripple Reduction Method of a Hybrid Electric Vehicle Motor," Energies, MDPI, vol. 14(5), pages 1-13, March.
    7. Maksymilian Mądziel & Tiziana Campisi & Artur Jaworski & Giovanni Tesoriere, 2021. "The Development of Strategies to Reduce Exhaust Emissions from Passenger Cars in Rzeszow City—Poland. A Preliminary Assessment of the Results Produced by the Increase of E-Fleet," Energies, MDPI, vol. 14(4), pages 1-21, February.
    8. Farya Golesorkhie & Fuwen Yang & Ljubo Vlacic & Geoff Tansley, 2020. "Field Oriented Control-Based Reduction of the Vibration and Power Consumption of a Blood Pump," Energies, MDPI, vol. 13(15), pages 1-18, July.
    9. Chaelim Jeong & Dongho Lee & Jin Hur, 2019. "Mitigation Method of Slot Harmonic Cogging Torque Considering Unevenly Magnetized Permanent Magnets in PMSM," Energies, MDPI, vol. 12(20), pages 1-15, October.
    10. T. A. Anuja & M. Arun Noyal Doss, 2021. "Reduction of Cogging Torque in Surface Mounted Permanent Magnet Brushless DC Motor by Adapting Rotor Magnetic Displacement," Energies, MDPI, vol. 14(10), pages 1-20, May.

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