724 磁気軸受弾性ロータの制御法

概要

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Active Magnetic Bearings (AMB) have recently been applied to industrial rotors. In the design of control networks operating AMB, which are used in the levitation of flexible rotors, the damping properties for rigid and flexible modes ranging in the rated rotational speed must be considered. However, this optimization easily induces high order bending modes instability, because a rotor has many eigen modes. Therefore, the controller is needed for stabilizing the instability of high order bending modes, which is called the spill over instability. In this paper, we propose to apply a new type of compensator instead of conventional filters. That compensator is called the phase shifting filter. By using the phase shifting filter, we designed the AMB controller to provide the optimal damping against high order bending modes.
社団法人日本機械学会の論文
2002-09-13