Model of permanent magnet inductor type synchronous motor

The linear model and magnetic network model have been developed for the three-phase permanent magnet inductor synchronous motor (PMISM) with distinguishing structures. Deduced from the established magnet network model, self inductance and mutual inductance are functions of rotor position rather than constants. It indicates the salient pole effects shouldn´t be neglected. At last, the dq mathematical model associated with the output torque equations has been developed for torque control.