Nonlinear optimal tracking control of spacecraft formation flying with collision avoidance

被引:12
作者
Liu, Ruixia [1 ]
Liu, Ming [1 ]
Liu, Yuan [1 ]
机构
[1] Harbin Inst Technol, Res Ctr Satellite Technol, Harbin 150001, Heilongjiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Spacecraft formation flying; nonlinear system; optimal control; extended -D method; collision avoidance; FAULT-TOLERANT CONTROL; SLIDING MODE CONTROL; TIME-VARYING STATE; OPTIMIZATION ALGORITHM; ATTITUDE TRACKING; SYSTEMS;
D O I
10.1177/0142331218773506
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, the nonlinear optimal control problem is investigated for spacecraft formation flying with collision avoidance. Based on a nonlinear model of formation flying, two optimal tracking control laws are proposed to ensure the formation pattern converges to the predetermined configuration. The first optimal control law which combines Lyapunov optimizing control with a trajectory-following optimization technique is developed to solve the finite-time nonlinear optimal control problem. For the second controller, an extended - D method is applied to design a closed-form feedback control scheme for nonlinear control problem of spacecraft formation flying with non-standard cost functions. By taking into account the flying safety, a repulsive control scheme is incorporated in the optimal controller to ensure collision avoidance and minimize the performance index. Finally, a numerical example is performed to demonstrate the effectiveness of the proposed approaches.
引用
收藏
页码:889 / 899
页数:11
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