INTEGRATION OF THE JILES-ATHERTON HYSTERESIS MODEL IN ELECTROMAGNETIC-THERMAL COUPLING

Abstract

In this paper, we present a numerical study of the coupled electromagnetic and thermal problem taking into consideration the magnetic hysteresis. The ferromagnetic hysteresis is described by the Jiles-Atherton model and is integrated in the electromagnetic equation by simple algorithm to avoid problem of convergence. The electromagnetic coupling and thermal east ensures by an alternate algorithm. Thus, we determine the powers dissipated by eddy current and that due to hysteresis. The simulations carried out with this computer code enabled us to study the impact of the hysteresis loop on the powers dissipated in the load. They also make it possible to deduce the evolution from the cycle according to the temperature.