Finite elements analysis of a self starting synchronous motor

The accuracy of present analytical theories of synchronous micromotors is inadequate to fit the requirements of computer aided design programs. It is therefore necessary to look for a two-dimensional model of the interaction through the air gap between the fields produced respectively by the magnet and the excitation coil. The model presented here allows a computation of the electromecanical performance of the machine with an accuracy consistent with C.A.D programs.