近地轨道小卫星编队飞行的电磁控制研究

摘要

Electromagnetic Formation Flying (EMFF) is a novel concept; without the expenditure of fuel, the mission lifetime would not be limited by the propellant and there would be no lingering propellant disturbing the optics. Firstly, the models of relative orbital dynamics controlled by electromagnetic force based on Hill equation are established. Then, the far field dipole model is adopted to design the feedback control law, and the magnetic control force is solved. Finally, the simulation system is presented based on the Simulink, the convergence of the closed - loop control system and the magnetic control force magnitude are analyzed. The simulation results indicated that the satellite electromagnetic formation flying is feasible and the proposed control law is effective.%电磁编队飞行(EMFF)有广泛的应用前景,使得编队寿命不再受推进剂携带量的限制,避免了推进剂造成的光学干扰和设备污染.首先基于Hill方程,建立了双星绕飞电磁编队的相对运动模型.其次,利用电磁作用的远场磁偶极子模型设计了电磁编队的反馈控制律,求解了编队维持所需的控制力.最后利用Simulink搭建了仿真系统,分析了闭环控制系统的收敛性和电磁控制力大小.仿真结果表明电磁力控制卫星编队飞行是可行的,所设计的控制方法是有效的.