考虑控制输入饱和的卫星姿态调节控制  

Satellite attitude regulation control subject to control Input saturation

作　　者：吕建婷[1,2] 马广富[1] 高岱[1] 

机构地区：[1]哈尔滨工业大学航天学院,哈尔滨150001 [2]黑龙江大学数学科学学院,哈尔滨150080

出　　处：《哈尔滨工业大学学报》2008年第11期1686-1689,共4页Journal of Harbin Institute of Technology

基　　金：教育部博士点基金资助项目(20050213010);国家自然科学基金资助项目(60674101)

摘　　要：研究了刚体卫星在控制输入饱和、外干扰和参数不确定性存在时的姿态调节控制问题.设计了可动态调节参数的控制器,能够保证姿态和角速度都是渐近趋于零的.通过李亚普诺夫方法证明了闭环系统零平衡点的全局渐近稳定性.所提出的控制方案不依赖于卫星的转动惯量,因此对参数不确定性具有鲁棒性.仿真结果表明,在控制输入饱和情况下,所设计的控制方案在实现姿态控制的同时,对外部扰动也能够有效地抑制.This paper deals with the problem of attitude regulation control of rigid satellite subject to control input saturation, external disturbance and parametric uncertainty. In the proposed controller, a single parameter is adjusted dynamically in such a fashion that it is possible to prove that both attitude and angular velocity will tend to zero asymptotically. Lyapunov theory is employed to prove the global asymptotic stability of zero equilibrium points of the closed loop system. The controller is derived independent of satellite inertia matrix and thus robust to parametric uncertainty. Simulation results demonstrate that the control scheme realizes the attitude control under control saturation and implements the effective rejection problem for disturbances.

关 键 词：姿态调节 控制输入饱和 干扰抑制 修正罗德里格参数 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]