Dynamic load change stress minimizing control of elastically coupled multi-mass systems

Abstract

Elastically coupled multi-mass systems are found in many industrial applications, like wind energy plants or in robotics. Dynamic load changes often cause peaks in the shaft torsion torque and result in damages to the system. This paper presents a control strategy to reduce the dynamic loads on the drive train and the stress in wind turbines and other multi-mass systems, by directly controlling and limiting the shaft torque and its jerk.