Unbalance Control of Magnetic Bearings by Multi-Degree of Freedom Internal Model Control

This paper suggests a method to control an unbalance vibration of the magnetic bearing by multi-degree of freedom internal model controller which is called Model Bridge Control. This control method can compensate for each control problem, e.g. robust stability and uncertainty compensation, responses, disturbance rejection. By focusing on a disturbance compensator, this paper put forward a control system which rejects agitation due to unbalance. In this paper, a controller design method using a disturbance compensation characteristic of model bridge control is shown. The controller gets possible to control an unbalance forced vibration with the specific frequency by using a disturbance model. The effectiveness of the proposed method has been clarified by simulation.