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Electric Thrusters Redundancy Configuration Strategy Study for All Electric Propulsion Platform Station-Keeping
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作者 Min Wang Qiang Li Xin’gang Liang 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2018年第3期55-61,共7页
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 thr... 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. 展开更多
关键词 all electric propulsion satellite station-keeping electric thrusters configuration electric thruster layout FAILURE REDUNDANCY
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