A Sector Advanced Technique to improve dynamic response of a Direct Torque Controlled induction motor

Several techniques are available for speed control of induction motor drive. The Direct Torque Control (DTC) method is simple and efficient because of independence of rotor parameters and free from d-q transformation. It is observed that dynamics of DTC drive can be improved by using estimators, observers, and machine intelligence systems. This paper proposes a new technique namely Sector Advancing Technique (SAT) for reducing the response time of the drive for a known torque command. Simulation studies are carried out using MATLAB/SIMULINK and results of DTC with SAT over conventional DTC are presented.