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

作     者：Qing Ni Yi-Yong Huang Xiao-Qian Chen 倪庆;黄奕勇;陈小前

作者机构：College of Aerospace Science and Engineering National University of Defense Technology Changsha 410073 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2017年第26卷第1期

页      面：250-259页

核心收录：

学科分类：08[工学] 081105[工学-导航、制导与控制] 0811[工学-控制科学与工程] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11404404) 

主　　题：nonlinear control disturbances rejection collision avoidance formation flying 

摘      要：A nonlinear controller for disturbances rejection and collision avoidance is proposed for spacecraft formation *** 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 *** 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 *** to the conventional control method, the proposed method provides better performance in the presence of the obstacles and external disturbances.