Abstract
A novel topology Halbach permanent magnet array is proposed and applied to the design of a printed circuit board (PCB) axial flux permanent magnet (AFPM) motor. Compared with the traditional coreless AFPM motor, this novel topology for a Halbach permanent magnet array PCB stator AFPM motor has larger air-gap magnetic flux density and air-gap flux per pole. The magnetic flux leakage is effectively reduced, and the air-gap magnetic density is close to the sine wave. Results of the finite element analysis and prototype experiments verify the feasibility and effectiveness of the novel Halbach permanent magnet array PCB stator motor. A reference basis and practical value for the design of the PCB AFPM motor are provided.
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Project supported by the National Natural Science Foundation of China (No. 51577125)
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Wang, Xy., Li, X., Li, Cp. et al. Design of a PCB stator coreless axial flux permanent magnet synchronous motor based on a novel topology Halbach array. Frontiers Inf Technol Electronic Eng 20, 414–424 (2019). https://doi.org/10.1631/FITEE.1700345
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DOI: https://doi.org/10.1631/FITEE.1700345
Key words
- Axial flux permanent magnet synchronous motor
- Printed circuit board
- Halbach permanent magnet array
- Finite element method