对空间碎片近距随遇悬停的控制方法及悬停燃耗分析

对空间碎片检视或抓捕操控中的悬停控制及燃耗问题进行了研究。通过C W方程，建立任务星近距随遇定点悬停控制模型，通过设计状态反馈控制器分析定点悬停的可控性以及推控要求，结果表明近距悬停需要与悬停位置相关的两个正交方向上的常值连续推力控制量，以及用于抵抗扰动的三轴向上的反馈变推力控制量。分析了近距随遇悬停的推控分系统配置，建立了长时近距随遇悬停的燃耗及燃耗速率的数学模型，最后分析了既满足安全距离需求、又满足悬停方位需求的最小悬停燃耗模型。

Control method and fuel consumption analysis on random relative station keeping in close range to space debris

The problems of control method and fuel consumption in random relative station keeping in close range to a space debris were investigated. Based on C W equations, control model was established in close range station keeping on a random relative fixed point. The state feed back controller was designed. The controllability and thrust requirement was studied. Results show that two orthogonal constant forces relating to position of the fixed point, and three orthogonal forces along three axes of the orbital frame to counteract to the perturbation, are required in close range station keeping. Then the basic configuration scheme of satellite subsystem for station keeping control was proposed and discussed. The analytical models for fuel consumption and fuel consumption rate were established. Finally, the minimum fuel consumption model was analyzed in close range hovering with safe distance demand and relative orientation demand being satisfied.