特征模型方法在中继星天线指向控制中的应用  

Application of Characteristic Model Method in TDRS Pointing Control

作　　者：沈少萍[1] 

机构地区：[1]北京控制工程研究所,北京100080

出　　处：《计算机仿真》2008年第7期50-53,144,共5页Computer Simulation

基　　金：973计划资助(2002CB312205);刚-柔-控耦合系统几何非线性动力学;控制及实验(10372015);国家自然基金重点项目(60034010);空间智能控制国防重点实验室

摘　　要：主要研究基于特征模型的自适应控制方法在中继星天线指向跟踪控制中的应用。利用由Newton-Euler方法建立的挠性多体卫星的混合坐标方程动力学简化模型进行数学仿真,分别采用基于特征模型的自适应控制方法和经典PID方法进行卫星本体姿态和天线指向跟踪控制,并比较两种控制方法的控制稳定性和控制精度,仿真结果表明用特征模型自适应控制方法设计的控制器能满足系统性能要求,并具有很强的鲁棒性和抗干扰性。The application of adaptive control method based on characteristic model to the control of tracking and pointing of antenna of Tracking and Data Relay Satellite（TDRS） is researched.The simplified dynamics of multi-body satellites with flexibility based on Newton-Euler method and expressed in hybrid coordinate equations are used in numerical simulations.To control the pointing of antenna and attitude of centre rigid body of TDRS,an adaptive control method based on the characteristic model and a classic PID method are used respectively.The control stability and control precision of two kinds of control methods are compared.The results of simulations show that the adaptive controller based on characteristic model can satisfy the performance requirement of system and has very strong robustness and anti-disturbance ability.

关 键 词：特征模型自适应控制方法 中继星 黄金分割反馈控制律 天线指向控制 

分 类 号：V448.223[航空宇航科学与技术—飞行器设计] V414.33