3D Power Inductor: Calculation of Iron Core Losses

L. Havez[1], E. Sarraute[1]
[1]LAPLACE, Toulouse, France
发布日期 2013

The work proposed in this paper deals with the consideration of 3D geometric effects to evaluate the iron losses in magnetic devices used in power electronics. To carry out this work, we rely upon two existing models of iron losses per unit volume calculation ("Steinmetz") currently used in power electronics. We coupled these two models with a finite element magnetic field calculation software, COMSOL Multiphysics®. Indeed, as they are volumetric models, instead of applying them at the macroscopic scale we can apply them at the element scale and so improve the iron losses estimation. Moreover, in order to imitate at best the 3D geometric effects, we must take into consideration the non-linear behavior of magnetic field.