Achievement of high performances for general purpose inverter drive induction motor system

An induction motor control idea derived on the basis of the concept of the idealized induction motor, which is defined as a motor having neither stator resistance nor leakage inductance, is presented. The proposed control is to compensate for the effects of these parameters and to try to keep the magnetic flux which interlinks with the rotor circuit at a constant state where it is a rotating phasor. A concept for analyzing transient phenomena in the induction motor proves that the instability is essentially caused by the parameters. The proposed control does not give rise to any electrical transient phenomena and realizes absolutely stable dynamic performance. Computer simulation results and experimental investigations are also presented.<>