A passivity-based controller, which takes into account saturation of the magnetic material in the main flux path of the induction motor, is developed to provide close tracking of time-varying speed and flux trajectories in the high magnetic saturation regions. The proposed passivity-based controller is experimentally verified. Also, a comparison between the… (More)
In this short paper, we show that the indirect field-oriented controller for current-fed induction motors guarantees the global asymptotic stability of speed tracking error for time-varying speed and rotor flux references. The load torque is assumed to be constant but is unknown.