Laminated Iron Core Inductor Model with Flux Skin Effect

In this paper, we propose a model with flux skin effect to represent the behavior of laminated iron core inductors that are used in switching converters, i.e., for excitation frequencies above several kilohertz. Modeling results show that, the inductor reactance calculated as functions of frequency, laminated thickness, core conductivity and permeability and flux skin effect in the laminated core, causes decreasing in the reactor inductance at high frequencies.