STATE CONTROL OF AN INDUCTION MOTOR WITH NON-LINEAR OBSERVER

František Ďurovský

   The contribution deals with non-linear control of a current source inverter fed asynchronous motor. Controllers were designed by a feedback linearization method and immeasurable variables were obtained by a non-linear extended Luenberger observer. A load torque observer was used for identification of an immeasurable disturbance. Robustness of the observer was checked by computer simulation. Proposed control method was tested on an experimental drive. The paper presents obtained results.

Keywords: non-linear control, non-linear observer, current source inverter, induction motor

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