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Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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SLOT-LESS TORUS SOLID-ROTOR-RINGED LINE-START AXIAL-FLUX PERMANENT-MAGNET MOTOR

By A. Mahmoudi, S. Kahourzade, N. A. Rahim, H. W. Ping, and N. F. Ershad

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Abstract:
This paper presents the design, analysis, and prototyping of a novel axial-flux permanent-magnet (AFPM) motor capable of auto-starting. The preliminary design is a slot-less double-sided solid-rotor line-start AFPM motor with 4 poles for high torque density and stable rotation. One spaced raised ring was added to the inner radii of the rotor disc for smooth line-start motor. The design allows the motor to operate at both starting and synchronous speeds. The basic equations for the solid ring of the rotor of the proposed axial-flux permanent-magnet motor are presented. Non-symmetry of the designed motor led to its 3D time-stepping finite element analysis (FEA) via ANSYS 13.0, which evaluated the design parameters and predicted the transient performance. The designed motor was fabricated and tested, the experimental results showing good agreement with FEA simulation results. The prototype motor showed high starting torque and good synchronization.

Citation:
A. Mahmoudi, S. Kahourzade, N. A. Rahim, H. W. Ping, and N. F. Ershad, "Slot-Less Torus Solid-Rotor-Ringed Line-Start Axial-Flux Permanent-Magnet Motor," Progress In Electromagnetics Research, Vol. 131, 331-355, 2012.
doi:10.2528/PIER12070308
http://www.jpier.org/PIER/pier.php?paper=12070308

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