Electric Thrusters Redundancy Configuration Strategy Study for All Electric Propulsion Platform Station-Keeping

作     者：Min Wang Qiang Li Xin’gang Liang 

作者机构：School of AstronauticsBeihang UniversityBeijing 100191China China Academy of Space TechnologyBeijing 100094China 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2018年第25卷第3期

页      面：55-61页

学科分类：08[工学] 082501[工学-飞行器设计] 0825[工学-航空宇航科学与技术] 

主　　题：all electric propulsion satellite station-keeping electric thrusters configuration electric thruster layout failure redundancy 

摘      要：Electric propulsion is used for all electric propulsion satellites to perform the orbit transfer,attitude control and station-keeping tasks. Generally electric propulsion subsystem contains 4 thrusters. But if one thruster fails in the beginning of satellite lifetime,other thrusters will undertake all the firing tasks. The firing time will be 2 to 3 times of thrusters without failure. Thus it may go beyond the allow ed lifetime of thruster. This paper puts forward two thruster redundancy configuration solutions with 6 thrusters to solve this problem. Two layout configurations and their corresponding station-keeping strategies are simulated and compared. The results show that the maximum firing time of both layout configurations can meet the lifetime limitation. This solution is a good reference for all electric propulsion satellites design.