使用反射率控制器件的太阳帆卸载策略  

Solar Sail Unloading Strategy Based on Reflectivity Control Device

作　　者：齐旋池 范才智[1] 何管维 Qi Xuanchi;Fan Caizhi;He Guanwei(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学空天科学学院,长沙410073

出　　处：《航天控制》2023年第5期33-41,共9页Aerospace Control

摘　　要：对于处于日心轨道的对日定向太阳帆,提出一种使用反射率控制器件(RCD)产生光压力矩的卸载方法。该方法设计了一种RCD状态解算策略,在实现对太阳帆动量轮快速卸载的同时大幅节约了所需的器件切换次数。之后,使用非线性优化算法对反射率控制器件进行了布局优化,进一步提高了使用反射率控制器件的卸载效率。仿真结果表明:提出的解算策略可以用更少的反射率控制器件状态切换次数更快地完成卸载过程;布局优化过程可以指导确定更加合理的反射率控制器件铺设位置,与未进行优化过程相比,能够实现更快卸载。According to sun⁃oriented solar sails in heliocentric orbits,a method based on the reflectivity control device(RCD)to generate radiation pressure torque for unloading is proposed.Firstly,the principle of the reflectivity control device and the calculation method of solar radiation pressure is introduced,then the attitude control system is established,which is based on the satellite dynamic model.Secondly,an RCD state solution strategy is designed to achieve fast unloading of the solar sail momentum wheel.Finally,in order to achieve a better unloading effect,a nonlinear optimization algorithm is used to optimize the size and layout of the reflectivity control device.Simulation results show that the proposed solving strategy can com⁃plete the unloading process faster under fewer RCD state switching times,and the layout optimization process can help determine a more reasonable placement of the reflectivity control device,which further improves the unloading efficiency.

关 键 词：太阳帆 布局优化 动量轮卸载 反射率控制器件 姿态控制 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]