Analiza wrażliwości wybranych estymatorów zmiennych stanu na błędną identyfikację parametrów schematu zastępczego silnika indukcyjnego

The paper presents a sensitivity analysis of selected estimators of rotor flux and speed of induction motor. Verification of estimator sensitivity has been carried out on the base of the drive system controlled with the application of DTC-SVM control. This control system has been simulated in Matlab-Simulink. The study was conducted for different angular speed of the motor. The effect of improper identification of the stator resistance, rotor resistance and magnetizing reactance has been studied. This analysis can be helpful for selection of suitable estimators for the sensorless system of induction motor drive.