Improved analytical multiphysical modeling of a surface PMSM

Permanent Magnet Synchronous Machines (PMSMs) are complex systems where a great amount of physical phenomena are produced simultaneously. Most of the existing PMSMs models are based on empirical formulations and standard design rules which are not suitable for high-performance applications or optimized design processes. The aim of this paper is to present an improved PMSM model which offers a holistic, multiphysic, modular and very fast approach capable of supporting a subsequent optimized design methodology. A complete multiphysic analysis which takes into account a coupled and analytic modeling of the magnetic, electrical, thermal and vibro-acoustics domains will be fully explained and applied to model a 10-poles 12-slots (Q12p5) PMSM. The achieved results are compared with those obtained in commercial software (FLUX2D®, ANSYS® and Motor-CAD®) getting high accuracy.