Comparison between The Energy-Based Hysteresis Model and The Jiles-Atherton Model in Finite Element Simulations

This paper focuses on ferromagnetic hysteresis phenomena, a crucial point in the evaluation of iron losses in the modelling of electromagnetic devices. The Energy-Based hysteresis model appears as a convenient candidate for the representation of magnetic hysteresis within numerical simulations. Built from thermodynamic principles and inspired by dry-friction like mechanisms in viscoplasticity, this naturally vectorial model offers the possibility to calculate directly the stored and dissipated energy at any time, not only after the closure of minor hysteresis loops. The model parameters are identified from common material measurements and their number is not limited, allowing for a trade-off between accuracy and complexity. In this paper, this model is incorporated into 2D magnetic vector potential finite element formulation simulations and compared with the very popular Jiles-Atherton hysteresis model on the basis of their ability to accurately and efficiently predict measurements from an experimental set-up constituted by a three limbed ferromagnetic core.