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A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines

Author

Listed:
  • Chun-Yu Hsiao

    (Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan)

  • Sheng-Nian Yeh

    (Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan)

  • Jonq-Chin Hwang

    (Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan)

Abstract

Cogging torque exists between rotor mounted permanent magnets and stator teeth due to magnetic attraction and this is an undesired phenomenon which produces output ripple, vibration and noise in machines. The purpose of this paper is to study the existence and effects of cogging torque, and to present a novel, rapid, half magnet pole pair technique for forecasting and evaluating cogging torque. The technique uses the finite element method as well as Matlab research and development oriented software tools to reduce numerous computing jobs and simulation time. An example of a rotor-skewed structure used to reduce cogging torque of permanent magnet synchronous machines is evaluated and compared with a conventional analysis method for the same motor to verify the effectiveness of the proposed approach. The novel method is proved valuable and suitable for large-capacity machine design.

Suggested Citation

  • Chun-Yu Hsiao & Sheng-Nian Yeh & Jonq-Chin Hwang, 2011. "A Novel Cogging Torque Simulation Method for Permanent-Magnet Synchronous Machines," Energies, MDPI, vol. 4(12), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:4:y:2011:i:12:p:2166-2179:d:15101
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    Citations

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    Cited by:

    1. Jing Zhao & Zhongxin Gu & Bin Li & Xiangdong Liu & Xiaobei Li & Zhen Chen, 2015. "Research on the Torque and Back EMF Performance of a High Speed PMSM Used for Flywheel Energy Storage," Energies, MDPI, vol. 8(4), pages 1-22, April.
    2. Xing Liu & Jinhua Du & Deliang Liang, 2016. "Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm," Energies, MDPI, vol. 9(11), pages 1-15, November.
    3. 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.
    4. Miguel García-Gracia & Ángel Jiménez Romero & Jorge Herrero Ciudad & Susana Martín Arroyo, 2018. "Cogging Torque Reduction Based on a New Pre-Slot Technique for a Small Wind Generator," Energies, MDPI, vol. 11(11), pages 1-15, November.

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