Control of a Constrained Flexible Rotor on Active Magnetic Bearings

This paper investigates the stability of a exible rotor supported on Active Magnetic Bearings (AMBs) subject to input and output constraints. For a specified rotor-AMB system, we propose a discrete-time constrained model predictive control (MPC) algorithm based controller. Simulation results are provided to illustrate the effectiveness of the proposed controller in stabilizing the system. Moreover, it is found that when the input constraints are fixed, the vibration amplitudes of the high speed rotor can be suppressed by reducing the output constraints bound.