Analytical Investigation of the Air Gap Flux Density of Surface-Mounted PMSMs With Irregular Pole Shapes

The article is aimed at an investigation of the no- and on-load features of surface-mounted permanent magnet synchronous machines (SMPMSMs) equipped with irregular pole shapes, with emphasis on the air gap flux density. The latter is predicted considering the resolution of the governing equations ba...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2025-01, Vol.72 (1), p.198-210
Main Authors: Souissi, Amal, Abdennadher, Imen, Masmoudi, Ahmed
Format: Article
Language:English
Subjects:
Air gaps
Analytical formulation
Analytical models
experimental validation
finite element analysis
Finite element method
Flux density
Harmonic analysis
irregular pole shapes
Magnetic flux
Mathematical models
Permanent magnets
PM synchronous machines
Shape
surface-mounted PMs
Synchronous machines
Synchronous motors
Vectors
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Summary:The article is aimed at an investigation of the no- and on-load features of surface-mounted permanent magnet synchronous machines (SMPMSMs) equipped with irregular pole shapes, with emphasis on the air gap flux density. The latter is predicted considering the resolution of the governing equations based on the magnetic potential vector formulated within the PM segments. The superposition of the resulting flux densities yields the one of the total pole. The proposed model involves appropriate geometrical parameters that makes it possible the application of the developed approach to any pole shape irregularity. SMPMSMs equipped with bread-loaf and sinusoidal with and without harmonics PMs are investigated using the developed approach and their features are compared. The obtained results are validated by finite element analysis. An experimental validation is carried out considering a prototype equipped with bread-loaf magnets.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2024.3413811