3D transient with motion simulation of electric motors

Abstract

With recent advances in computation power and finite element meshing and solution algorithms, the analysis of 3D devices is now becoming both realistic and worthwhile, especially in the design of novel machines where 2D analysis is not suitable, such as axial flux machines like the disk induction motor investigated here. In particular, new methods for formulating motion meshes and efficient solvers allow for efficient multi-physics solution of such machines under transient conditions, considering eddy current, velocity effects, the equations of motion as well as the field solution. The computational effort and problem size required for 3D electromagnetic field simulation are considerable and the algorithms developed must be robust, efficient and scaleable. An overview of the design, the methodology for analysis and a review of the results and comparison with experiment measurements are presented