Time-stepping finite-element analysis for the dynamic performance of a permanent magnet synchronous motor

A field-circuit coupled time-stepping finite-element method for the study of electric machines is presented. In reality, various circuits such as stator windings, rotor cage bars, and the control electronics are directly coupled with the electromagnetic field of the electric machines, hence, the physical quantities relating to these circuits as well as the field should be taken into account simultaneously. The method is used to simulate the electromagnetic performance of a permanent magnet synchronous motor (PMSM). The dynamic performance for PMSM, both computational and experimental results, is presented. A good match between the two sets has been achieved.