A 3D Integral Model Using Fictitious Surface Currents for the Magnetic Field Modeling in Ferromagnetic Materials

This paper presents a 3-D integral modeling approach of ferromagnetic parts when solving static equations using integral methods. This approach involves considering a position-dependent equivalent surface current distribution. The proposed approach is applied to calculate the magnetic flux density distribution in a ferromagnetic block with finite relative permeability. The results obtained are compared with the finite element method, showing that the approach accurately takes into account the relative permeability.