A Novel Torque Control Scheme with Reduced Computation for Induction Motor

Model Predictive Torque Control (MPTC) has been proposed as an effective alternative to conventional direct torque control (DTC) for induction motor (IM) drives. Compared to DTC, MPTC is more effective and accurate in the vector selection by incorporating the system model directly with the finite switching states. Higher calculation burden and weighting factor selection are the main disadvantages of the conventional system. In this paper, a novel method is proposed in which the number of switchings is reduced, the calculation burden is reduced and the cost function is changed in such a way that the weighting factor selection process can be avoided.