Finite element analysis of magnetizer using Preisach model

A numerical algorithm is developed to predict the distribution of the remnant magnetic flux density in the capacitor-discharge pulse magnetizer by combining the finite element method and the magnetization-dependent Preisach model. After computing the magnetic field by using the finite element method, magnetization-dependent Preisach model is used to simulate the hysteresis curve and get the magnetization. By comparing the demagnetization curves of the anisotropic rubber ferrite magnet and the cogging torque distribution of the VCR drum motor with the experimental results, the validity of the suggested algorithm is proved.