Modeling and design of control system for Motion and Vibration Control of Flexible Rotor Using Magnetic Bearings

Abstract

This paper deals with modeling and design of control system for motion and vibration control of flexible rotor using active magnetic bearings (AMB). The goal of this research is to pass through a critical speed and achieve high-speed rotation. One of the most problems is the cross-coupling effect caused by gyroscopic. To achieve this goal, it is necessary to make model that can express to high order flexible modes and to gyroscopic effect. Thus we apply an extended reduce order physical model method that can express motion and vibration simultaneously to rotor-AMB system. Further, we propose controller that combined PID with LQ control to motion and vibration control. The effectiveness of made out model and designed controller is approved by simulations.