Main Article Content
In this paper, a Fuzzy logic based speed controller and a method for estimating rotor resistance in an indirect vector-controlled induction motor drive are proposed. The proposed rotor resistance estimator is based on the improvement of control performance when mismatch between estimated rotor resistance and actual one occurs. Analysis, design, and digital simulations are carried out to demonstrate the effectiveness of the proposed estimator. Moreover, Computer simulation results show that the designed Fuzzy Logic based speed controller improves significantly the dynamic behaviour of the motor in presence of load disturbances and parameter variations.