A METHOD OF ANISOTROPIC STEEL MODELING USING FINITE-ELEMENT METHOD WITH CONFIRMATION BY EXPERIMENTAL RESULTS

The modelling methods developed so far for grain-oriented electrical s teels can not account for the true properties of materials. When these models were developed, more consideration was given to obtain fast co nvergence speed for numerical iterations than the accuracy of models t hemselves. For magnetic materials, the small changes in flux density B can cause dramatic change in permeability, so for the purpose of mode lling devices, material modelling has to be as accurate as possible to reflect the true magnetic characteristics.