Analiza modelowa wpływu odłączenia i ponownego załączenia napięcia sieci na stany dynamiczne silnika asynchronicznego

The model for simulation the influence of the supply interruption on the dynamic states of an induction motor is presented. The model was employed to simulation of the three-phase balanced supply interruption(voltage and currents) and the voltage phase shift in the subsequent voltage recovery. The analysis of the electromotive force E, currents I torque Me, speed omega provides information about the influence of the supply interruption and the field suppression rate on the dynamic performance of a motor after the supply recovery. The influence of the voltage phase shift on the motor operation has been analysed for various values of the moment of inertia and various interruption time. The simulation was carried out using the Matlab package.