Predictive direct torque control for the PM-synchronous machine

The paper shows that a predictive digital control combined with the principle of the direct torque control leads to an excellent dynamic behavior of the permanent magnet excited synchronous machine and is a real alternative to the classical field orientated control. The advantages are the constant switching frequency and the predictable torque ripple. The set up times of the torque are reduced compared with the classical control. The application in servo-drives in which the rotor position is always measured can be easily realized using a commercial DSP. Numerous simulations and measurements confirm the theoretical work.