Adaptive controller design for satellite attached by non-cooperative object  

作　　者：Guohua KANG Jiaqi WU Chendi JIN Xuefen CHEN 

机构地区：[1]College of Astronautics,Nanjing University of Aeronautics&Astronautics,Nanjing 210016,China [2]Nanjing Changfeng Aerospace Electronic Technology Co.Ltd,Nanjing 210013,China

出　　处：《Chinese Journal of Aeronautics》2020年第3期1006-1015,共10页中国航空学报（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities,China(No.NS2014092)。

摘　　要：When non-cooperative body attachment occurs in space, the inertia of the new combination and the change of the system's momentum are unknown.This uncertainty may lead to the instability of the spacecraft's attitude control.In order to solve this problem, we propose an adaptive control scheme based on the inertia estimation of the new, combined system of non-cooperative body and satellite.This method can allow the new combination of different situations to reach a stable state with a high level of precision and speed.In this paper, the stability of the adaptive control scheme is proven by constructing a Lyapunov function.A simulation environment in which a non-cooperative body attaches to a satellite attaches to is constructed.The simulation shows that the attitude error converges to a small field when using the control scheme, regardless of unfavorable cases, including unknown inertia parameters, added momentum.In addition, the simulation results show the strong robustness of the control scheme for the new combination.

关 键 词：Adaptive control scheme Inertia estimation New combination Non-cooperative body attachment ROBUSTNESS 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]