Axial Ferrite-Magnet-Assisted Synchronous Reluctance Motor
Résumé
This paper presents a noval 18 poles /16 slots Axial Flux Permanent Magnet-Assisted Synchronous Reluctance Motor (AF-PMASynRM) with non-overlapping concentrated winding. At first, the torque ripple and iron losses are analyzed using 3D Finite Element Analysis (3D-FEA). Then, a comparison between 3D-FEA and 2D-FEA based on flux and iron losses is established. In this paper, we propose to design the motor for high torque low speed application using a multiobjective optimization. In this kind of iterative procedure, the use of Finite Element is generally time consuming. Thus, we propose a 2D analytical saturated model that considers the local saturation near the iron bridges and the slot tangential leakage flux. The magnetic model is coupled with an electrical model that computes the power factor and the voltage at the motor terminals. A loss model is also developed to calculate the copper and the iron losses. The proposed analytical model is 5 times faster than the 2D- FEA. The optimal axial structure is compared to a previously optimized radial motor in order to evaluate the design benefits of axial flux machines.
Mots clés
iron losses
3D-FEA
high torque low speed application
iron bridges
slot tangential leakage flux
magnetic model
electrical model
optimal axial structure
axial flux machines
torque ripple
finite element analysis
permanent magnet-assisted synchronous reluctance motor
radial motor
axial ferrite-magnet
iterative procedure
Index Terms-Analytical model
Concentrated winding
Electrical machines
IPM motor
Multi-V-shape magnets
Domaines
Sciences de l'ingénieur [physics]Origine | Fichiers produits par l'(les) auteur(s) |
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