A Parametric Finite Element Analysis Package for Electromagnetic Fields of Electrical Machine

This paper develops a parametric finite element analysis package for the electromagnetic fields in electrical machines. Based on Petri net, a parametric finite element geometrical modelling method is presented. with which the user can interactively utilize variables to describe the dimensional and geometrical constraints. The efficiency of revision of finite element geometrical model is enhanced An electromagnetic finite element adaptive mesh generation method based on fuzzy logic control is proposed. by which more appropriate mesh distribution can be obtained A V-A model of switches is developed. which has been applied to the dynamic simulation of magnetic field coupled with drive circuits. Comparing the simulation results with the experimental observation, the satisfaction of this model is confirmed. The advantages of this package are its precision and jlexibility. These will signij'U:antly make the user focus more on their individual physical problems.