Self-organizing control for satellite clusters using artificial potential function in terms of relative orbital elements
Self-organizing control for satellite clusters using artificial potential function in terms of relative orbital elements
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DOI：
10.1016/j.ast.2018.11.033
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发表时间：
2019
影响因子：
5.6
通讯作者：
Zhaokui Wang;Yun-Chao Xu;Chaoyang Jiang;Yulin Zhang
中科院分区：
文献类型：
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作者：
Zhaokui Wang;Yun-Chao Xu;Chaoyang Jiang;Yulin Zhang
卫星群的自组织控制是一个具有挑战性和前景的问题，在最近的过去引起了相当大的关注。人工势函数法由于其简洁的数学分析和简单的计算方法，在自组织控制中得到了广泛的应用。提出了一套基于人工势函数的卫星群自组织控制规则，使卫星群的重构、均匀分布和避免碰撞等操作能够自发实现。它可以在卫星故障、新成员加入或空间碎片存在的情况下工作，并且相应的通信和控制系统是完全分布式的。特别地，将人工势函数用T-H方程推导出的相对轨道根数表示，使得自组织控制能够反映相对运动动力学，引导卫星沿着燃料有效的轨道运动。该方法特别适用于高度分布的微小卫星集群和大规模集群对运动目标的跟踪，且燃料消耗少，控制精度较高，适用于深空和近地空间的集群。利用李雅普诺夫第二方法证明了控制器的稳定性，并通过蒙特卡罗仿真验证了控制器的稳定性。最后，将自组织控制与燃料最优控制进行了比较，验证了自组织控制的性能。
Self-organizing control for satellite clusters is a challenging and promising problem which has drawn considerable attention in the recent past. The artificial potential function method has been widely used for self-organizing control due to its elegant mathematical analysis and simplicity. This paper proposes a set of self-organizing control rules for satellite clusters described by artificial potential functions, so that the reconfiguration, uniform distribution and collision avoidance operations can be achieved spontaneously. It may work regardless of the failure of satellites, attendance of new members or existence of space debris, and the corresponding communication and control system are completely distributed. Particularly, the artificial potential functions are written in terms of relative orbital elements derived from T–H equations, so that the self-organizing control can reflect relative motion dynamics, and guide the satellite along a fuel-efficient trajectory. The proposed method is especially suitable for highly distributed micro-satellite clusters and large-scale clusters to track moving targets, with few fuel cost and relatively high control accuracy, and it is applicable to clusters in either deep space or near-earth space. The stability of the control was proved by Lyapunov second method, and verified by Monte Carlo simulation. Finally, the comparison between self-organizing control and fuel-optimal control was made to demonstrate the performance properties.