基于TS模糊区域模型的航天器姿态控制  

Attitude Control of Spacecraft Based on TS Fuzzy Region Model

作　　者：白圣建[1] 黄新生[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《控制工程》2011年第6期947-951,961,共6页Control Engineering of China

基　　金：兵器预研基金资助项目(2020203)

摘　　要：由于燃料消耗和柔性部件展开等原因,挠性航天器的姿态动力学方程存在着参数的不确定性,因此,研究参数不确定TS模糊系统的鲁棒控制器设计方法,并将其应用到平面机动挠性航天器的姿态机动控制问题。将参数不确定TS模糊系统描述为TS模糊区域模型,根据PDC原理设计了模糊区域控制器,并用分段Lyapunov法证明了模糊控制系统的全局渐近稳定性。将平面机动挠性航天器姿态动力学方程描述为参数不确定TS模糊区域模型,在此基础上设计了模糊区域控制器,进行了数值仿真分析。仿真结果表明,TS模糊区域控制器具有很强的鲁棒性,可以实现挠性航天器的高精度姿态控制和振动抑制。To the problem that the fuel consuming and the flexible appendage deployment induce the parameter uncertainty of the dy- namic model of flelxible spacecraft, the robust controller of uncertain TS fuzzy systems is designed to control the slew maneuvering of flexible spacecraft. The TS fuzzy region model is developed from the uncertain TS fuzzy model, where the fuzzy region controller is de- rived by using PDC concept. The stability of the fuzzy system is analyzed via the piecewise Lyapunov approach. The dynamic equations of flexible spacecraft are described as uncertain TS fuzzy model, where the fuzzy region controller is obtained. Numerical simulations show that the rotational maneuver and vibration suppression are accomplished in spite of parameter uncertainty.

关 键 词：挠性航天器 姿态 模糊控制 模糊区域 TS模型 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]