Comparative analysis of different control approaches of direct torque control induction motor drive

Direct torque control gives fast and robust response in induction motor drives. This paper deals with Direct torque control technique of induction motor using different approaches. The first is Conventional direct torque control which uses hysteresis controllers. The second one is direct torque control using space vector modulation which uses predictive controllers and the third is simplified direct torque control space vector modulation which uses imaginary switching time concept. The MATLAB/SIMULINK platform is used for analysis of these techniques. Comparison of all the three approaches is discussed.