Resumen de Evaluation of hysteresis loss using variable pinning parameter

Zdzislaw Wlodarski, Jadwiga Wlodarska

• The Jiles‐Atherton model of magnetization gives a general description of magnetic induction and hysteresis loss against magnetic field and corresponding current. At wider regions of magnetization, however, the differences between calculated and empirical values become noticeable, especially in the case of hysteresis loss. It seems that these inaccuracies are caused to a large degree by the variation of the optimum values of model parameters in the successive regions of magnetization, and in particular by the change of the pinning coefficient. The application of a simple linear dependence of this parameter on the amplitude of magnetization has substantially improved the accuracy of the model.