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航天器分布式有限时间编队方法
康珅1,2, 单家元1,2
1.北京理工大学 宇航学院, 北京 100081;2.飞行器动力学与控制教育部重点实验室, 北京 100081
摘要:
以二阶积分环节作为单体航天器动力学模型,在固定通信拓扑的基础上,假设每个航天器仅获取相邻航天器的速度位置信息,设计了分布式有限时间跟踪控制算法,并证明了算法的有效性。在该算法的基础上,采用了虚拟结构和阶级控制方法,使第一阶级航天器接受虚拟领队形成的虚拟结构信息,次级航天器接受上一级航天器信息,给出了有限时间编队方法,并通过数值仿真验证了该编队算法。
关键词:  分布式控制;航天器编队;有限时间收敛;阶级控制
DOI:10.15982/j.issn.2095-777.2017.04.0013
分类号:
基金项目:
Distributed Finite-Time Control Method for Formation Flying
KANG Shen1,2, SHAN Jiayuan1,2
1.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;2.Key Laboratory of Dynamic and Control of Flight Vehicle, Ministry of Education, Beijing 100081, China
Abstract:
In this paper,a dynamic model of single spacecraft is simulated by a double integrator and the communication topology is assumed fixed. Based on the information exchanges among neighbors,the distributed finite-time control protocol is designed and mathematically verified. Adopt the presented control protocol and combined with virtual structure and hierarchical protocol,the formation algorithm is designed,where in a group spacecraft on a lower level takes orders from spacecraft on a higher level. The numerical simulation is conducted,verifying the effectiveness of the proposed method.
Key words:  distributed control;formation flying;finite-time stable;hierarchical control