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

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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Cite this article

[IEEE Style]

S. Wang, J. Lu, B. Li, C. Liu, Y. Wang, G. Lei, Y. Guo, J. Zhu, "Design and analysis of mechanical flux‑weakening device of axial flux permanent magnet machines," Journal of Power Electronics, vol. 22, no. 4, pp. 653-663, 2022. DOI: 10.1007/s43236-022-00386-1.

[ACM Style]

Shaopeng Wang, Jiawei Lu, Bin Li, Chengcheng Liu, Youhua Wang, Gang Lei, Youguang Guo, and Jianguo Zhu. 2022. Design and analysis of mechanical flux‑weakening device of axial flux permanent magnet machines. Journal of Power Electronics, 22, 4, (2022), 653-663. DOI: 10.1007/s43236-022-00386-1.