Model Predictive Torque Control of an Induction Motor with Discrete Space Vector Modulation

In order to improve the performance of model predictive torque control (MPTC) for induction motor (IM), this paper proposed the use of discrete space vector modulation (DSVM). In traditional MPTC, the application of one voltage vector is performed during the whole control cycle, which requires a small sampling time for proper operation. The application of the voltage vector can be performed in a discrete manner by using the DSVM to increase the sampling time required for the control. Nevertheless, DSVM increase considerable the computational burden of the controller, for this reason, this paper proposed a methodology to reduce the number of voltage vectors of DSVM evaluated in MPTC to keep computational burden feasible. Simulation results on a commercial IM are presented to prove the effectiveness of the proposed method.