Predictive direct torque control strategies of induction motor based on area voltage vectors table

In this paper, the torque ripples in low speed range of conventional direct torque control are discussed in detail, and a new vector selection table based on area voltage is proposed to control the torque and flux. In this case, two predictive control schemes of torque and flux are presented to reduce torque ripples and improve the steady and dynamic performance. Finally, simulations and experiment results are given to show the validity and the advantages of the proposed predictive schemes based on area voltage vector table.