Controller Design for Three-Mass Resonant System Based on Polynomial Method

The mechanical system in the industrial electrical drives can be modelled by a multi-mass system. Torsional vibration suppression and attainment of robustness in motion control systems is a requisite in industry applications. In this paper, the system that is three-mass system is considered. A speed control method based on polynomial method introduced to imple-mentation of torsional vibration is proposed. The effectiveness of the proposed controller is demonstrated by transfer function analysis and simulation results. The simulation results show that the proposed controller improves dynamic performance and suppresses torsional vibration of three-mass resonant system.