TITLE:
Contribution to the Full 3D Finite Element Modelling of a Hybrid Stepping Motor with and without Current in the Coils
AUTHORS:
Belemdara Dingamadji Hilaire, Mbaïnaïbeye Jérôme, Guidkaya Golam
KEYWORDS:
Modelling, 3D Finite Elements, Magnetic Flux, Hybrid Stepping Motor
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.16 No.2,
February
29,
2024
ABSTRACT: The paper presents our contribution to the full 3D finite element modelling of a hybrid stepping motor using COMSOL Multiphysics software. This type of four-phase motor has a permanent magnet interposed between the two identical and coaxial half stators. The calculation of the field with or without current in the windings (respectively with or without permanent magnet) is done using a mixed formulation with strong coupling. In addition, the local high saturation of the ferromagnetic material and the radial and axial components of the magnetic flux are taken into account. The results obtained make it possible to clearly observe, as a function of the intensity of the bus current or the remanent induction, the saturation zones, the lines, the orientations and the magnetic flux densities. 3D finite element modelling provide more accurate numerical data on the magnetic field through multiphysics analysis. This analysis considers the actual operating conditions and leads to the design of an optimized machine structure, with or without current in the windings and/or permanent magnet.