A new analytical approach to determine slotting based eddy current losses in permanent magnets of PMSM taking into account axial and circumferential segmentation
ISSN: 0332-1649
Article publication date: 2 March 2015
Abstract
Purpose
The purpose of this paper is to calculate slotting-based eddy currents in permanent magnet excited synchronous machine (PMSM) taking into account axial and circumferential segmentation of magnets.
Design/methodology/approach
An analytical approach to calculate eddy current losses in PM caused by slotting harmonics of PMSM is presented. The eddy current reaction field is taken into account as well as axial and circumferential segmentation of the magnets.
Findings
The analytical model provides results comparable to 3D-FEM calculations even at high frequencies at reduced computation costs. To generalize the results the magnetic Reynold’s number is introduced.
Originality/value
Taking into account the axial and circumferential segmentation in the PDE; the approach is much more accurate compared to known approaches; accuracy is comparable to 3D-FEA.
Keywords
Citation
Bode, C., Canders, W.-R. and Henke, M. (2015), "A new analytical approach to determine slotting based eddy current losses in permanent magnets of PMSM taking into account axial and circumferential segmentation", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 34 No. 2, pp. 398-412. https://doi.org/10.1108/COMPEL-08-2014-0221
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited