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In this paper, a new approach has been proposed to control induction motor drives using a PI controller. The induction motor drive system is fed by a current-controlled voltage source inverter (VSI) and indirect field oriented control (IFOC) method has been used to control the three-phase command currents. During simulation proccess, the stator three-phase real currents are sensed from sensors inside the motor and regulated by hystersis controllers with comparison of the command currents obtained from the block proceeding the IFOC. The PI controller presented in this paper, has improved stability of the induction motor drive effectively. A neural network has been designed as a numerical controller to replace the original PI based cotroller to verify the results gained from the simulink.
Date of Conference: 15-16 Feb. 2012