中国空间科学技术

中国空间科学技术 ›› 2018, Vol. 38 ›› Issue (1): 44-53.doi: 10.16708/j.cnki.1000-758X.2018.0016

• 技术交流 • 上一篇    下一篇

皮纳卫星编队保持动力学分析

杨博1,*，田苗1，魏延明2   

  1. 1. 北京航空航天大学宇航学院，北京  100191
    2. 北京控制工程研究所，北京  100190
  • 收稿日期:2016-12-23 接受日期:2018-02-02 出版日期:2018-02-25 发布日期:2020-02-12
  • 通讯作者: 杨博(1963-),女,副教授,yangbo@buaa.edu.cn,研究方向为飞行器导航制导与控制技术
  • 作者简介:田苗(1992-),女,硕士研究生,tianmiao20131212@163.com,研究方向为飞行器控制技术

Kinetic analysis on nano-pico satellite formation keeping

YANG Bo1,*, TIAN Miao1, WEI Yanming2   

  1. 1. School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
    2. Beijing Institute of Control Engineering, Beijing 100190, China
  • Received:2016-12-23 Accepted:2018-02-02 Published:2018-02-25 Online:2020-02-12

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摘要：

针对皮纳卫星在编队飞行中的控制精度要求已提高到微米甚至纳米级，文章研究了小推力作用下高精度的皮纳卫星编队构型保持问题，在考虑摄动影响下，推导维持编队构型需要的控制力与编队距离、编队空间方位等参数之间的关系,为皮纳卫星编队构型的设计提供理论指导；同时基于bang-bang控制理论，使用有限状态机设计了一种高精度的编队控制律。仿真表明，提出的控制方法不但可以使系统快速收敛,同时还能使皮纳卫星编队的星间控制精度达到1 μm,与滑模控制律相比较,精度提高近103倍。

关键词:

小推力器, 皮纳卫星, 编队保持, bang-bang控制, 混合控制

Abstract:

To solve the control precision problem of the nano-pico satellite formation keeping, which had been the bottleneck of the nano-pico satellite applications, such as the earth-orienting technology, the high precision control theory was proposed based on low thrusters and the bang-bang control. A hybrid control principle and the finite-state machine were used to designtheprecisionoptimizationoftheformationkeeping.Anenergyoptimizationcontrol theory was developed based on the precision optimization. Simulation results show that the validity of the proposed strategy makes the system quickly converge to the equilibrium point and improves there liability and precision of the nano-pico satellite formation keeping on the low thrusters. The formation keeping precision can reach 1 μm, which means the precision 103 times better than the sliding mode method.

Key words:

low thruster, nano-pico satellite, formation keeping, bang-bang control, hybrid control