Preisach-type hysteresis models in magnetic field computation

The paper illustrates the evolution of Preisach-type models of hysteresis, involving mean field effect, dynamic effect and vector behaviour and their capability to be included into finite element electromagnetic field computation. The study makes reference to 1D and 2D formulations developed under different simplifying assumptions. Particular attention is devoted to the use of fixed point technique which is found to be very advantageous for the solution of hysteretic problems. Some examples of the analysis of magnetic field problems with hysteresis are finally presented.