中国物理B ›› 2017, Vol. 26 ›› Issue (1): 14502-014502.doi: 10.1088/1674-1056/26/1/014502

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Nonlinear control of spacecraft formation flying with disturbance rejection and collision avoidance

Qing Ni(倪庆), Yi-Yong Huang(黄奕勇), Xiao-Qian Chen(陈小前)   

  1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • 收稿日期:2016-07-09 修回日期:2016-10-19 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Xiao-Qian Chen E-mail:chenxiaoqian@nudt.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 11404404).

Nonlinear control of spacecraft formation flying with disturbance rejection and collision avoidance

Qing Ni(倪庆), Yi-Yong Huang(黄奕勇), Xiao-Qian Chen(陈小前)   

  1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2016-07-09 Revised:2016-10-19 Online:2017-01-05 Published:2017-01-05
  • Contact: Xiao-Qian Chen E-mail:chenxiaoqian@nudt.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 11404404).

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摘要：

A nonlinear controller for disturbances rejection and collision avoidance is proposed for spacecraft formation flying. The formation flying is described by a nonlinear model with the J2 perturbation and atmospheric drag. Based on the theory of the state-dependent Riccati equation (SDRE), a finite time nonlinear control law is developed for the nonlinear dynamics involved in formation flying. Then, a compensative internal mode (IM) control law is added to eliminate disturbances. These two control laws compose a finite time nonlinear tracking controller with disturbances rejection. Moreover, taking safety requirements into account, the repulsive control law is incorporated in the composite controller to perform collision avoidance manoeuvres. A numerical simulation is presented to demonstrate the effectiveness of the proposed method. Compared to the conventional control method, the proposed method provides better performance in the presence of the obstacles and external disturbances.

关键词: nonlinear control, disturbances rejection, collision avoidance, formation flying

Abstract:

A nonlinear controller for disturbances rejection and collision avoidance is proposed for spacecraft formation flying. The formation flying is described by a nonlinear model with the J2 perturbation and atmospheric drag. Based on the theory of the state-dependent Riccati equation (SDRE), a finite time nonlinear control law is developed for the nonlinear dynamics involved in formation flying. Then, a compensative internal mode (IM) control law is added to eliminate disturbances. These two control laws compose a finite time nonlinear tracking controller with disturbances rejection. Moreover, taking safety requirements into account, the repulsive control law is incorporated in the composite controller to perform collision avoidance manoeuvres. A numerical simulation is presented to demonstrate the effectiveness of the proposed method. Compared to the conventional control method, the proposed method provides better performance in the presence of the obstacles and external disturbances.

Key words: nonlinear control, disturbances rejection, collision avoidance, formation flying

中图分类号:  (Translation kinematics)

  • 45.40.Aa
45.50.Tn (Collisions) 45.40.Ln (Robotics)