PID-State Torque Control in Electromechanical Drive Systems Under Stochastic Load

Many technical processes with stochastic workflow are characterized by high load peaks. Those load peaks propagate in the power train of the electromechanical drive system to the feeding power grid and at the same time stimulate torsion oscillations. For smoothing the load peaks as well as damping the torque oscillations, a novel torque control was designed. The concept consists of a PID-state control and was compared to standard control methods such as standard PID control. The PID-state control shows distinctive advantages with respect to the reference-variable response and the manipulated variable requirement.