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Techniques for Reduction of the Cogging Torque in Claw Pole Machines with SMC Cores

Author

Listed:
  • Chengcheng Liu

    (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300131, China
    Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology; Tianjin 300131, China)

  • Jiawei Lu

    (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300131, China
    Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology; Tianjin 300131, China)

  • Youhua Wang

    (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300131, China
    Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology; Tianjin 300131, China)

  • Gang Lei

    (Schoolof Electrical, Mechanical and Mechatronic Systems University of Technology Sydney, Ultimo NSW 2007, Australia)

  • Jianguo Zhu

    (Schoolof Electrical, Mechanical and Mechatronic Systems University of Technology Sydney, Ultimo NSW 2007, Australia)

  • Youguang Guo

    (Schoolof Electrical, Mechanical and Mechatronic Systems University of Technology Sydney, Ultimo NSW 2007, Australia)

Abstract

As one of the main parasitic parameters in permanent magnet (PM) synchronous machines (PMSMs), cogging torque is the main component of the torque ripple, which has always been the handicap in the high-performance, low-speed drive systems. Over the last two decades, various methods have been proposed to decrease the cogging torque in both radial-flux and axial-flux PMSMs. Among these methods, stator slot skewing, stator tooth notching, permanent magnet (PM) skewing, PM shifting, and pole pairing are extensively investigated. However, little work has been done on reducing the cogging torque of the claw pole machine (CPM), whose cogging torque cannot be ignored. In this paper, the general methods that have been used to reduce the cogging torque in radial-flux and axial-flux PMSMs are developed and verified in a CPM with a soft magnetic composite (SMC) core. The 3-D finite element method (FEM) is used to calculate the cogging torque and PM flux linkage per turn. By comparing different cogging torque reduction technologies, it can be found that the magnet step skewing and unequal claw pole width are very suitable for CPM.

Suggested Citation

  • Chengcheng Liu & Jiawei Lu & Youhua Wang & Gang Lei & Jianguo Zhu & Youguang Guo, 2017. "Techniques for Reduction of the Cogging Torque in Claw Pole Machines with SMC Cores," Energies, MDPI, vol. 10(10), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1541-:d:114179
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    Citations

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    Cited by:

    1. Muhammad Usman Naseer & Ants Kallaste & Bilal Asad & Toomas Vaimann & Anton Rassõlkin, 2021. "A Review on Additive Manufacturing Possibilities for Electrical Machines," Energies, MDPI, vol. 14(7), pages 1-24, March.
    2. Andrzej Łebkowski, 2018. "Design, Analysis of the Location and Materials of Neodymium Magnets on the Torque and Power of In-Wheel External Rotor PMSM for Electric Vehicles," Energies, MDPI, vol. 11(9), pages 1-23, August.
    3. Chengcheng Liu & Jiawei Lu & Youhua Wang & Gang Lei & Jianguo Zhu & Youguang Guo, 2018. "Design Issues for Claw Pole Machines with Soft Magnetic Composite Cores," Energies, MDPI, vol. 11(8), pages 1-15, August.
    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.
    5. Youguang Guo & Xin Ba & Lin Liu & Haiyan Lu & Gang Lei & Wenliang Yin & Jianguo Zhu, 2023. "A Review of Electric Motors with Soft Magnetic Composite Cores for Electric Drives," Energies, MDPI, vol. 16(4), pages 1-17, February.
    6. 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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