磁控小卫星编队飞行的非线性控制  

Nonlinear control for electromagnetic formation flight of multi-satellites

作　　者：冯成涛[1] 王惠南[1] 刘海颖[2] 丁尚文[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016 [2]南京航空航天大学高新技术研究院,江苏南京210016

出　　处：《传感器与微系统》2009年第3期54-57,共4页Transducer and Microsystem Technologies

基　　金：教育部博士点基金资助项目(20070287007)

摘　　要：磁控小卫星编队飞行利用磁力和磁力矩对编队小卫星进行位姿调控,不受星载燃料的限制,同时还避免了由推进器羽流造成的光学干扰和精密设备污染。基于磁力研究编队小卫星的相对运动控制问题,介绍了编队卫星的磁力模型和相对运动模型,采用饱和函数方法给出了非线性控制律,利用李雅普诺夫稳定性理论证明了系统的稳定性,最后,利用该方法对两星编队磁力控制进行仿真验证,结果表明:完全依靠电磁力编队卫星是可控的。Electromagnetic formation flight uses forces and torques to control the position and attitude of satellites in the formation. Satellites become independent of the fuel available on board. Also the contamination of optics or sensitive formation instruments, due to thruster plumes, is avoided. Based on magnetic forces, the control problem of relative motion for satellite formation flight is studied. The models of magnetic force and relative motion are presented. A nonlinear control law based on saturation function is designed. System stability is proved using Lyapunov＇s stability theorem. The simulation of two satellites is also presented. The results indicate that the satellites in the formation are controllable under the electromagnetic force completely.

关 键 词：电磁 卫星编队飞行 非线性 相对运动 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]