主从式卫星集群系统的长期轨道保持  

Long-Term Distance-Keeping for Satellite Cluster System in Leader-Follower Form

作　　者：陈瑛[1] 何朕[1] 李顺利[1] 

机构地区：[1]哈尔滨工业大学航天学院,哈尔滨150001

出　　处：《宇航学报》2016年第11期1349-1355,共7页Journal of Astronautics

摘　　要：针对主从式卫星集群系统的空间构型长期保持问题提出一种控制算法,使得多星系统能够在给定的相对距离约束下在轨长期运行,并且消耗较少的燃料。该卫星集群系统由一颗主星和多颗从星构成,主星保持在特定轨道上,负责系统中的数据处理、任务规划及决策,从星围绕主星自由运动并实现特定功能。根据系统的特点,考虑主星与从星、从星与从星之间约束条件的异同,设计了具有较强适应性的控制逻辑与基于李雅普诺夫稳定性理论的控制器。仿真结果表明,在推力器最大推力一定的情况下,提出的控制算法能够有效地应用于多星集群飞行中,并成功地实现长期的轨道保持。A modified control algorithm is proposed for a long-term distance-keeping problem of a satellite cluster system in leader-follower form. This satellite cluster system consists of one leader and several followers. The leader keeps at a certain orbit dealing with data processing, task planning and decision making of the whole system, while the followers move around the leader freely with specific functions. According to the characteristics of the system, an adaptive control logic and a Lyapunov-based controller are designed with the consideration of the different constraint conditions. The control algorithm is a combination of both the control logic and the controller, and makes the multi-satellite system work properly under the distance constrains and consume less fuel. Numerical simulations have demonstrated the effectiveness of the algorithm proposed.

关 键 词：卫星集群 距离约束 控制算法 轨道保持 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程]