编队飞行卫星的自适应姿态协同控制

Adaptive Attitude Coordination Control of Formation Flying Satellite

研究了双星编队飞行系统的姿态控制问题。在卫星转动惯量参数不确定下,给出两种编队飞行卫星的自适应姿态协同控制算法。第二种自适应协同控制算法,在实现对转动惯量参数的实时辨识的同时,还能够解决控制输入饱和问题。通过李亚普诺夫方法证明了编队飞行系统全局渐近稳定性。最后对给出的算法进行了数值仿真。结果表明,所设计的控制算法实现了编队卫星之间的姿态协同控制,是可行的、有效的。

This paper considers attitude control problem of a satellite formation consisting of two satellites. Two adaptive control schemes are designed to implement real-time identification for inertia parameters. We give the second control scheme not only to deal with parametric uncertainty but also the control input saturation. Global eonvergenees of the satellite formation are proven mathematically. Finally, simulations are performed. Simulation results demonstrate achieve attitude coordination among the satellites and it＇s effective and feasible.