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Design and analysis of mechanical flux-weakening device of axial flux permanent magnet machines

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Abstract

Due to the low inductance of an axial flux permanent magnet machine (AFPMM), the constant power speed regulation range is small. A new mechanical flux-weakening method for single-rotor single-stator AFPMMs is proposed in this paper. By installing a mechanical flux-weakening device on one side of the stator and rotating it certain angle, the speed regulation of the flux-weakening can be realized. The device is simple in structure, easy to operate, and can be operated in the process of machine operation. The validity of the device is verified by applying it to a machine. Finite-element software is used to calculate and analyze the performances of two machines with the device.

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Funding

This study was funded by Chengcheng Liu (Grant no. E2019202220), and Youhua Wang (Grant no. 51877065).

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Authors and Affiliations

  1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin, China

    Shaopeng Wang, Bin Li, Chengcheng Liu & Youhua Wang

  2. Province-Ministry Joint Key Laboratory of EFEAR, Hebei University of Technology, Tianjin, China

    Shaopeng Wang, Bin Li, Chengcheng Liu & Youhua Wang

  3. School of Electrical and Data Engineering, University of Technology, Sydney, NSW, Australia

    Gang Lei & Youguang Guo

  4. School of Electrical and Information Engineering, University of Sydney, Sydney, NSW, Australia

    Jianguo Zhu

  5. Dongguan Power Supply Bureau of Guangdong Power Grid Co., Ltd., Dongguan, Guangdong, China

    Jiawei Lu

Authors
  1. Shaopeng Wang
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  2. Jiawei Lu
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  3. Bin Li
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  4. Chengcheng Liu
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  5. Youhua Wang
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  6. Gang Lei
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  7. Youguang Guo
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  8. Jianguo Zhu
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Correspondence to Bin Li.

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On behalf of all the authors, the corresponding author states that there is no conflict of interest.

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Wang, S., Lu, J., Li, B. et al. Design and analysis of mechanical flux-weakening device of axial flux permanent magnet machines. J. Power Electron. 22, 653–663 (2022). https://doi.org/10.1007/s43236-022-00386-1

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  • DOI: https://doi.org/10.1007/s43236-022-00386-1

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