基于零J_2摄动条件的近圆轨道编队保持双脉冲最优控制方法研究  

Optimal Two-impulse Formation Keeping Control in Near Circular Orbit Based on J_2 Invariant Perturbation Conditions

作　　者：常燕[1] 周军[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,西安710072

出　　处：《航天控制》2008年第6期3-7,11,共6页Aerospace Control

基　　金：空间智能控制技术国家级重点实验室基金(SIC07020301)

摘　　要：重点研究了考虑J2摄动作用的近圆轨道编队构形保持双脉冲最优控制策略。利用轨道要素法建立了考虑J2摄动作用影响的相对运动方程,推导了消除相对摄动影响长期项的零J2摄动条件,并利用该条件对C-W方程得到的编队初始条件进行了修正,得到了对J2摄动不太敏感的相对轨道。然后,基于C-W方程建立了编队保持双冲量最优控制模型,并利用非线性规划方法得到了编队保持所需的最优控制脉冲。仿真结果表明,J2项摄动对相对运动的破坏作用明显减小,提出的双脉冲最优控制方法能够有效实现编队保持的高精度控制。The minimum-fuel, optimal two-impulse control strategy of formation keeping in near circular orbit with consideration of the J2 perturbations is mainly studied. The relative motion equations are set up using reference orbital elements, the J2 invariant perturbation conditions to remove the long term relative perturbation are deduced, by which, the initial conditions obtained from C - W equations are corrected and the relative orbit insensitive to the J2 perturbations is obtained. And then, the mathematical model of optimal two-impulse formation keeping control is set up, and the required optimal impulses are obtained using non- linear programming method. The simulation results show that the effects of the J2 perturbations on the relative motion are reduced obviously, and the proposed control method is very effective for the formation keeping with high accuracy.

关 键 词：编队飞行 J2摄动 编队保持 双脉冲 

分 类 号：V412.4[航空宇航科学与技术—航空宇航推进理论与工程]