磁気軸受支持弾性ロータの制御法

概要

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In the design of control networks driving active magnetic bearings which are used in the levitation of flexible rotors, the damping properties for rigid and flexible modes in the operation speed range and the stability margin for high-frequency bending modes must be considered. This paper aims to provide a design concept of robust control systems insensitive to high-frequency instability. The concept is based upon characteristics of the 3rd-order low-pass filter (LPF), the phase lag of which approaches 270 degrees in the high-frequency domain. The effectiveness of the controller is proven by numerical simulation and experiment using a test rotor system with one radial active magnetic bearing. Furthermore, the application of the design concept using 3rd order LPF characteristics to a rotor with two radial active magnetic bearings is discussed.
社団法人日本機械学会の論文
1995-08-25