Fault tolerant attitude control of under-actuated spacecraft:Theory and experiment  

作　　者：Zejun ZHANG Hao YANG Bin JIANG 

机构地区：[1]College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China

出　　处：《Chinese Journal of Aeronautics》2023年第5期465-474,共10页中国航空学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62073165 and 62233009);the 111 Project,China(No.B20007).

摘　　要：This paper investigates fault tolerant attitude control theory and experiment for underactuated spacecraft with one reaction wheel completely broken and two others suffering actuator faults of partial loss of effectiveness or bias.A non-smooth robust adaptive fault tolerant control law is proposed under the zero-momentum and input saturation conditions.It shows that the available reaction wheels need to produce sufficient control torque for the fault tolerance.Such a new control method is implemented in a semi-physical simulation system of an air-bearing platform.Experimental results show the effectiveness of the proposed method in spacecraft practical engineering.

关 键 词：Actuator fault Air-bearing platform Fault tolerant control Semi-physical experiment Under-actuated spacecraft 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]