平流层卫星轨道控制系统研究

Orbit Control System for Stratospheric Satellite

近年来,各国都在开展研究各类平流层飞行器。平流层卫星是一种新型低成本、低能耗平流层飞行器,采用气动帆实现轨迹控制,在距离地面35Km高度沿东西方向环绕地球运动。首先分析了平流层卫星运行的风场环境,给出了平流层卫星的组成以及轨迹控制原理,建立了球体运动学模型和气动帆运动学模型,并进行了不同风场条件下的仿真计算。仿真结果表明:采用气动帆作为轨迹控制系统能够在风场突变干扰下实现平流层卫星南北方向的稳定控制,确保其沿东西方向轨道运动。

Stratospheric aircraft has received a heightened research focus currently. Stratospheric satellite is a new stratospheric aircraft which is low cost and low power consume, it use StratoSail to control movement toward south and north , and make sure it move form east to west around earth. In this paper, the wind field enviromnent for stratospheric satellite motion is analyzed, the constitution and trajectory control principle of stratospheric satellite is introduced, the kinematic models of sphere and aerodynamic sail are constituted, and the simulation calculation in different wind field conditions is carried through. The simulation result has shown that the control system can achieve the steady control of stratospheric satellite towards south and north in wind field break disturbance, and ensure the satellite move towards east and west.