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Electromagnetic Performance Evaluation of an Outer-Rotor Flux-Switching Permanent Magnet Motor Based on Electrical-Thermal Two-Way Coupling Method

Author

Listed:
  • Zhengming Shu

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Xiaoyong Zhu

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
    Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Jiangsu University, Zhenjiang 212013, China)

  • Li Quan

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
    Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Jiangsu University, Zhenjiang 212013, China)

  • Yi Du

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

  • Chang Liu

    (School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China)

Abstract

Flux-switching permanent magnet (FSPM) motors have gained increasing attention in electric vehicles (EVs) applications due to the advantages of high power density and high efficiency. However, the heat sources of both permanent magnet (PM) and armature winding are located on the limited stator space in the FSPM motors, which may result in the PM overheating and irreversible demagnetization caused by temperature rise, and it is often ignored in the conventional thermal analysis. In this paper, a new electrical-thermal two-way coupling design method is proposed to analyze the electromagnetic performances, where the change of PM material characteristics under different temperatures is taken into consideration. First, the motor topology and design equations are introduced. Second, the demagnetization curves of PM materials under different temperatures are modeled due to PM materials are sensitive to the temperature. Based on the electrical-thermal two-way coupling method, the motor performances are evaluated in detail, such as the load PM flux linkage and output torque. The motor is then optimized, and the electromagnetic performances between initial and improved motors are compared. Finally, a prototype motor is manufactured, and the results are validated by experimental measurements.

Suggested Citation

  • Zhengming Shu & Xiaoyong Zhu & Li Quan & Yi Du & Chang Liu, 2017. "Electromagnetic Performance Evaluation of an Outer-Rotor Flux-Switching Permanent Magnet Motor Based on Electrical-Thermal Two-Way Coupling Method," Energies, MDPI, vol. 10(5), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:677-:d:98491
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    References listed on IDEAS

    as
    1. Weiwei Gu & Xiaoyong Zhu & Li Quan & Yi Du, 2015. "Design and Optimization of Permanent Magnet Brushless Machines for Electric Vehicle Applications," Energies, MDPI, vol. 8(12), pages 1-13, December.
    2. Yi Du & Gang Yang & Li Quan & Xiaoyong Zhu & Feng Xiao & Haoyang Wu, 2017. "Detent Force Reduction of a C-Core Linear Flux-Switching Permanent Magnet Machine with Multiple Additional Teeth," Energies, MDPI, vol. 10(3), pages 1-14, March.
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    Cited by:

    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. Yuqing Yao & Chunhua Liu & Christopher H.T. Lee, 2018. "Quantitative Comparisons of Six-Phase Outer-Rotor Permanent-Magnet Brushless Machines for Electric Vehicles," Energies, MDPI, vol. 11(8), pages 1-18, August.
    3. Yunyun Chen & Yu Ding & Jiahong Zhuang & Xiaoyong Zhu, 2018. "Multi-Objective Optimization Design and Multi-Physics Analysis a Double-Stator Permanent-Magnet Doubly Salient Machine," Energies, MDPI, vol. 11(8), pages 1-15, August.
    4. Yi Du & Wei Lu & Qi Wang & Xiaoyong Zhu & Li Quan, 2018. "Comparative Investigation of Hybrid Excitation Flux Switching Machines," Energies, MDPI, vol. 11(6), pages 1-16, June.

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