On observer-based Active Vibration Control of two-inertia systems

The two-inertial system is a typical motion control problem with compliance between the motor and load, where the resonance makes it very challenging to regulate the load response and stabilize the motor at the same time. Concerned with setpoint tracking, disturbance rejection, and internal stability, an observer based Active Vibration Control solution is formulated, tested and analyzed in this paper. Simulation results show that the proposed method is an effective solution in obtaining desirable responses from both the motor and the load sides simultaneously. Furthermore, the controller is easy to implement and to tune, with much tolerance of internal dynamic variations and external disturbances. Finally, comparing with the existing solutions, the wear and tear of motors and transmission is much reduced.