Squirrel cage induction motor predictive direct torque control based on multi-step delay compensation

The squirrel cage induction motor direct torque control main problems due to and large stator flux pulsation. In this an improved model predictive algorithm considering multi-step delay compensation is proposed. At each sampling moment, predict the linkage at next moment under voltage vector. optimal vector deviation from reference value are selected as minimum objective function. Aiming problem of one-shot in digital systems, a measure studied. Simulation shows that can effectively reduce pulsation, current harmonic distortion, solve systems.