H^∞制御による磁気浮上振動絶縁システムの制御の実験的考察

抄録

The object of this paper is the experimental consideration of the robustness improvement in the feedforward control and the control by means of the frequency-shaped cost functionals using H^∞ control theory on magnetically levitated vibration system. The vibration isolation system is a single-degree-of-freedom system and the vibration of its table, which is levitated by the repulsive force of a permanent magnet, is controlled by the attractive force of an electromagnet. Through experiments, it was verified that, by applying the H^∞ control theory, the robustness problem of the optimal control with a feedforward link can be solved. Furthermore, by adopting the frequency-shaped cost functionals, a more effective vibration isolation can be achieved over a wide frequency range.