Title :
Line-start axial-flux permanent-magnet synchronous motor
Author :
Mahmoudi, Ali ; Kahourzade, Solmaz ; Uddin, M. Nasir ; Rahim, N.A. ; Hew, Wooi Ping
Author_Institution :
UM Power Energy Dedicated Adv. Centre (UMPEDAC), Univ. of Malaya, Kuala Lumpur, Malaysia
Abstract :
This paper presents the design process 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 for 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), which is used to evaluate the design parameters and predict the transient performance. The designed motor was fabricated and tested; sample experimental result showed good agreement with those of FEA based simulated results. The prototype motor showed excellent characteristics (high starting torque, good synchronization), and excellent steady-state performance.
Keywords :
finite element analysis; permanent magnet motors; rotors; synchronous motors; torque; 3D time stepping finite element analysis; high torque density; line start axial flux permanent magnet synchronous motor; one spaced raised ring; rotor disc; slotless double sided solid rotor line start AFPM motor; stable rotation; Induction motors; Permanent magnet motors; Rotors; Stator windings; Synchronous motors; Torque; axial-flux permanent-magnet motor; finite element analysis; line-start; solid-rotor;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
DOI :
10.1109/ECCE.2013.6647121