Vibration Suppression Control using Two Variable Parameters in a Two-Mass Plant

Abstract

The torsional vibration is often initiated by the momentary impact which occurs when a load is connected to a motor by several mechanical coupling parts. An industrial motor drive system is typically represented as a two-mass plant. To suppress the vibration generated in the two-mass plant, many control methods have been developed for practical use. In this paper, the authors propose a simple vibration suppression strategy which employs two variable parameters consisting of resonance ratio and damping factor along with a state feedback approach. The control performance, resulting in excellent vibration suppression even for small resonant ratio, is verified by simulations and experiments.