控制理论与应用2009，Vol.26Issue(11)：1273-1276,1281,5.
航天器近距离相对运动的鲁棒约束模型预测控制
Spacecraft proximity relative motion under robust constrained model predictive control
摘要
Abstract
With the development of on-orbit service, there is an increasing desire to control spacecraft proximity op-erations precisely. By employing the set theory, the mixed-integer linear programming(MILP) and the variable horizon model predictive control(MPC), we solve the robust control problem of spacecraft proximity operations, considering con-trol constraints, state constraints, unknown bounded disturbance, control error and navigation error. Firstly, the finite-time maneuvering with a predetermined target set is formulated by the discrete C-W dynamics, the time-fuel cost function and the linear constraints. Secondly, the robust variable horizon MPC algorithm is introduced to ensure the robust feasibility and the finite-time entry of the target set. The feasibility is analyzed by using the i-step robust controllable set. The navi-gation error is treated as a bounded disturbance by set operations. The controller is implemented using MILP optimization. Finally, the simulation results show that the controller is efficient and robust.关键词
航天器/相对运动/约束压缩/模型预测控制/混合整数线性规划Key words
spacecraft/ relative motion/ constraint tightening/ MPC/ MILP分类
航空航天引用本文复制引用
朱彦伟,杨乐平..航天器近距离相对运动的鲁棒约束模型预测控制[J].控制理论与应用,2009,26(11):1273-1276,1281,5.基金项目
国家"863"计划资助项目(2007AA704114). （2007AA704114）
