Space-Vector State Model of Induction Machines Including Rotor and Stator Slotting Effects

This paper develops a new space-vector dynamic model of the induction machine including stator and rotor slotting effects. With the proposed approach, the slotting effect is considered only in the stator and rotor leakage variation, as proposed in literature. The model has been rearranged into a space-state form useful for control applications, since it contains the information of the rotor position. This model works both with a low and a high frequency supply, differently from most models in literature including slotting effects for control applications which usually model only the high frequency behaviour of the machine. The model has been implemented in numerical simulation and verified experimentally on three motors with the same stator and three different rotor configurations. Experimental results confirm the model, and are consistent with the results in literature.