Modeling Frequency Independent Hysteresis Effects of Ferrite Core Materials Using Permeance–Capacitance Analogy for System-Level Circuit Simulations

Ferrite materials are widely used for magnetic cores in power electronic converters. The hysteresis effect of the material leads to power loss and harmonic distortion. In order to predict the behavior of the magnetic component in the system environment during the design phase, accurate system-level time-domain simulation is desired. This paper proposes an approach to model the frequency-independent magnetic hysteresis effect of ferrite core materials in magnetic circuits based on the permeance–capacitance analogy. The model is able to accurately reproduce the per-cycle energy loss and equivalent permeability of the hysteresis loops under excitation in a wide range of amplitudes.