Title :
Physical interpretation of induction and frequency dependence of power losses in soft magnetic materials
Author :
Bertotti, Giorgio ; Pasquale, Massimo
Author_Institution :
Istituto Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
9/1/1992 12:00:00 AM
Abstract :
A loss model based on a dynamic generalization of the Preisach hysteresis model, in which the standard Preisach algorithm is coupled to an equation for the rate of change of the flux associated with each elementary Preisach loop, is presented. The model is able to predict loss features not explained by previous treatments and provides a general interpretative frame for the study of the connection between power losses and microstructure of soft magnetic materials
Keywords :
crystal microstructure; ferromagnetic properties of substances; iron alloys; magnetic hysteresis; magnetic leakage; Preisach algorithm; Preisach hysteresis model; Preisach loop; flux rate of change; frequency dependence; induction; loss model; microstructure; physical interpretation; power losses; soft magnetic materials; Equations; Frequency dependence; Magnetic domain walls; Magnetic flux; Magnetic hysteresis; Magnetic losses; Magnetic materials; Magnetic separation; Magnetization; Soft magnetic materials;
Journal_Title :
Magnetics, IEEE Transactions on
