A heterogeneous spacecraft formation completely distributed control method considering time-varying topology and time-varying delay comprises the steps of establishing an orbit dynamics model of an accompanying satellite formation with mutually different input delay and obtaining a state-space equation of the orbit dynamics model, and establishing a signal model of a main spacecraft to be tracked and obtaining a state-space equation of the main spacecraft to be tracked; constructing an explicit fully distributed observer for each accompanying satellite to obtain state information of the main spacecraft constrained by time-varying communication delay; respectively designing an explicit linear state feedback gain and a feedforward gain, and establishing a corresponding fully distributed control protocol for the accompanying satellite formation system influenced by time-varying topology and time-varying time lag by using the state feedback gain, the feedforward gain and the fully distributed observer. And the accompanying satellites can complete the task of tracking the main spacecraft. The method is good in control performance, enables the heterogeneous spacecraft formation system to operate stably, and achieves the task that the accompanying satellites track the main spacecraft.
考虑时变拓扑和时变时滞的异构航天器编队完全分布式控制方法,所述方法包含建立具有互异输入时滞的伴随卫星编队的轨道动力学模型并得到其状态空间方程,建立待跟踪主航天器信号模型并得到其状态空间方程;为各个伴随卫星构建显式的完全分布式观测器,以获取受时变通信时滞约束的主航天器状态信息;分别设计显式的线性状态反馈增益和前馈增益,利用所述状态反馈增益、所述前馈增益和所述完全分布式观测器,针对受时变拓扑和时变时滞影响的伴随卫星编队系统,建立对应的完全分布式控制协议,保证各个伴随卫星完成跟踪主航天器任务。本发明控制性能好,使得异构航天器编队系统运行稳定,实现了伴随卫星跟踪主航天器的任务。
Heterogeneous spacecraft formation fully distributed control method considering time-varying topology and time-varying delay
考虑时变拓扑和时变时滞的异构航天器编队完全分布式控制方法
2024-07-16
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
Attitude tracking control for spacecraft formation with time-varying delays and switching topology
Online Contents | 2016
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