5個の電磁石で制御されるコーン形磁気軸受系の近似分離制御系と動特性

概要

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A control system actuating five electromagnets is considered for magnetic bearings whose magnet cores are in the shape of a cone to provide functions of radial and thrust bearings. The bearing system is constructed with a pair of bearings, each composed of three electromagnets, and supports a symmetric rotor in the horizontal direction. The control system is designed so that the resulting control input of control signals given to the five electromagnets may be decoupled into the five control axes in the range of the linear system. To linearize the magnetic control forces, the square-root compensation is applied for the control axes which are actuated by, not push-pull, but single action of a pair of electromagnets. Frequency responses of the control system are obtained and compared with the numerical results. Transient responses of rotor motion to impact are examined to show the characteristics with large displacements.
一般社団法人日本機械学会の論文
1994-05-25