基于代数黎卡提方程的 H_∞ 控制器及在气动系统中的应用

H ∞ controller and its application to pneumatic systems

本文基于代数黎卡提方程提出一种Ｈ∞状态反馈控制律，它能同时保证系统鲁棒稳定及干扰衰减。利用该方法对气动系统进行设计，并与ＬＱ方法设计控制器进行比较，结果表明本文所设计控制器具有鲁棒性好，噪声衰减大的优点。

Based on Algebraic Riccati equation, this paper presents a method for designing a state-feedback H ∞ controller. It can provide both robust stability and disturbance attenuation. A pneumatic system controller is designed using the proposed method. The simulation results show that the proposed controller has the advantages of strong robust stability and disturbance attenuation by comparing with the controller designed by LQ method.