Analytical Prediction of Electromagnetic Performances and Unbalanced Magnetic Forces in Fractional-Slot Spoke-Type Permanent-Magnet Machines
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| Titre | Analytical Prediction of Electromagnetic Performances and Unbalanced Magnetic Forces in Fractional-Slot Spoke-Type Permanent-Magnet Machines |
| Type de publication | Conference Paper |
| Year of Publication | 2016 |
| Auteurs | Boughrara K., Ibtiouen R., Dubas F. |
| Conference Name | 2016 XXII INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM) |
| Publisher | Int Conf Elect Machines Assoc; Inst Engn & Technol; IEEE Ind Elect Soc; IEEE Ind Applicat Soc |
| Conference Location | 345 E 47TH ST, NEW YORK, NY 10017 USA |
| ISBN Number | 978-1-5090-2538-1 |
| Mots-clés | electromagnetic performances, fractional-slot machines, subdomain method, unbalanced magnetic forces |
| Résumé | This paper presents an analytical method for the computation of electromagnetic performances and non-intrinsic unbalanced magnetic forces (UMF) in fractional-slot spoke-type permanent-magnet (STPM) machines. It is based on the two-dimensional (2-D) subdomain method in polar coordinates considering the drive current: i) sinusoidal, and ii) six-step rectangular. It involves solution of Laplace's and Poisson's equations in the stator slots, the air-gap, the buried tangential PMs into rotor slots, and the non-magnetic region under PMs. The results obtained with 2-D analytical model (viz., the electromagnetic performances and the non-intrinsic UMF) are verified with those issued from finite-element method (Fem). |