Reduced-order Robust Controller Design of Flexible Satellite Attitude
研究多挠性充液卫星姿态运动的低阶鲁棒控制器设计问题．综合应用模态截断、Ｈ∞回路成形和Ｈ∞氏平衡截断方法设计低阶鲁棒控制器．模态截断获得适当阶数的卫星姿态运动模型；Ｈ∞回路成形方法设计鲁棒控制器；Ｈ∞平衡截断技术实现控制器降阶．满阶对象和低阶控制器组成闭环进行计算机仿真．This paper studies the reduced-order robust controller design of flexible satellite attitude. Mode truncation, H∞loop-shaping and H∞balanced truncation are being used during the controller designing. The model of satellite attitude movement is simplified by mode truncation, an robust controller is designed by H∞loop-shaping, and then, the robust controller is reduced by H∞balanced truncation. The closed-loop system, consisted by the reduced-order robust controller and the full-order plant, is simulated by computer.