Determination of distribution functions and parameters for the Preisach hysteresis model

In this paper the Preisach model is used to simulate the magnetic hysteresis. The model is able to represent the hysteresis property of the ferromagnetic material if its distribution function P(H/sub M/,H/sub C/) is well determined. Three distributions, Gaussian, Cauchy and lognormal, are combined to produce different distribution functions and to simulate the hysteresis loops. The influence of the parameters on the hysteresis loops is described. One example to simulate the hysteresis loop of grain-oriented electrical sheet is indicated. In the last step, the optimal distribution functions and parameters of the Preisach model for some materials are shown in the table.