Predictive torque controlled induction motor drive with reduced torque and flux ripple over DTC

This paper presents a comparative study of Direct Torque Control (DTC) and Predictive Torque Control (PTC) of three phase induction motor drive w.r.t flux ripple, torque ripple and also for dynamic response. The control strategy combines the use of classical PI controller to obtain good steady state response and a predictive controller scheme to achieve good dynamic response. Simulation results are presented for both the schemes and the better features of PTC when compared with DTC are highlighted