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Optimal Design of Magnetic Geared PM Synchronous Motor Pole Shape to Improve Magnetic Field Distribution and reduce Cogging Torque | ||
| الکترومغناطیس کاربردی | ||
| Article 7, Volume 8, Issue 1 - Serial Number 20, September 2020, Pages 53-59 PDF (1.28 M) | ||
| Document Type: Original Article | ||
| Author | ||
| Seyed Ahmadreza Afsari Kashani* | ||
| Faculty of Computer and Electrical Engineering, University of Kashan, Kashan, Iran, P.O. Box 8731753153. | ||
| Receive Date: 16 November 2019, Revise Date: 29 February 2020, Accept Date: 14 June 2020 | ||
| Abstract | ||
| In this paper, the combined axial flux structure of a permanent magnet synchronous motor with a magnetic gearbox is investigated to increase the torque density. The motor has two rotors with tangential magnetized spoke type PMs and coreless structure. Modulators play the role of magnetic field modulation for the stator and rotor over the air gaps. The shape of permanent magnets allows higher efficiency and at the same time lower axial length. Soft magnetic poles of the rotor located between the magnets play a decisive role in the magnetic field distribution as well as the torque and magnetic field profile of the machine. In this paper, the shape of the soft magnetic pole is optimized to obtain a higher sine field distribution and higher output torque as well as lower cogging torque using the variable airgap. | ||
| Keywords | ||
| axial flux PM motor; magnetic gear; axial flux synchronous motor; torque; magnetic flux density; finite element method | ||
| References | ||
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