Finite State Predictive Torque Control with Switching Table for Induction Motors Fed by 3L-NPC Inverter

The application Finite State Predictive Torque Control (FS-PTC) to Three-Level Neutral Point Clamped (3L-NPC) inverter (FS-PTC-NPC) is very difficult because the 3L-NPC inverter has many voltage vectors leading to heavy computational burden in every predictive step of FS-PTC-NPC and cost function requires choosing two weighting factors. This paper proposes FS-PTC-NPC with switching table to reduce computational burden and the number of selecting weighting factors. This structure also ensures capacitor voltage balancing which is an important problem of 3L-NPC control.