Publikacje

Abstract:

The paper presents the selected study results for assessing robustness of the considered configurations of the MRAS-based speed estimator to variability of induction motor electromagnetic parameters resulted from the rotor deep bar effect. As pointed out in the literature, the current model of the rotor flux space vector, which has been used as the adjustable model of the classical MRAS-based speed estimator, shows sensitivity to the rotor electromagnetic parameter variability. The combination of the adequately transformed voltage model and the current model of the rotor flux space vector leads to the estimation system of this vector which is characterized by less sensitivity to the rotor electromagnetic parameter variability, when compared with the current model, in a wide range of slip pulsation changes. The employment of the resulted voltagecurrent model of the rotor flux space vector as the adjustable model of the MRASbased speed estimator has allowed for considerable increase in its robustness to the variability of IM rotor electromagnetic parameters arisen from the rotor deep bar effect. The presented verification investigations of the analyzed MRASbased speed estimators have been carried out on the basis of induction motor physical quantities registered experimentally on the laboratory test bench.

POWRÓT

Strona główna > Publikacje

Improving robustness of the MRAS­based speed estimator to variability of induction motor electromagnetic parameters resulting from the rotor deep bar effect

Improving robustness of the MRASbased speed estimator to variability of induction motor electromagnetic parameters resulting from the rotor deep bar effect