配置姿控推力器的卫星大角速率协同阻尼策略  

Satellite High Angular Rate Cooperative Damping Strategy with Attitude Control Thrusters

作　　者：文哲 刘伟[1,2] WEN Zhe;LIU Wei(Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院空间应用工程与技术中心,北京100094 [2]中国科学院大学,北京100049

出　　处：《航天控制》2024年第3期16-22,共7页Aerospace Control

基　　金：中国科学院战略性先导科技专项课题“地月空间自主巡航制导与控制”(XDA30010400)。

摘　　要：针对卫星大角速率阻尼问题,研究使用姿控推力器的速率阻尼策略,兼顾姿控推力器开机次数少且开机时长短的设计原则。提出了综合三轴同时阻尼方法和单轴依次阻尼方法的协同阻尼策略,当卫星任意两轴角速率大于设定角速率阈值时,采用施密特触发器进行三轴同时阻尼以实现卫星大角速率有效阻尼;反之,采用按照角速率大小的顺序进行单轴依次阻尼以减少推力器开关机次数。数值仿真结果表明,协同阻尼策略能够有效实现卫星大角速率阻尼,并且有效降低推力器的开机次数和开机时长。Regarding the issue of high angular velocity damping in satellites,a velocity damping strategy using attitude control thrusters is studied,which is token into account the design principles of fewer startup times and longer startup times for attitude control thrusters.A collaborative damping strategy is proposed,which combines the three-axis simultaneous damping method with the single axis sequential damping method.When the angular velocity of any two axes of the satellite exceeds the set angular velocity threshold,a Schmidt trigger is used for three-axis simultaneous damping to achieve effective damping of the satellite′s large angular velocity.On the contrary,single axis damping is used in order of angular velocity to reduce the number of times that the thruster is turned on or off.The numerical simulation results show that the collaborative damping strategy can effectively achieve satellite high angular rate damping and effectively reduce the number and duration of thruster startup.

关 键 词：卫星控制 大角速率阻尼 姿控推力器 协同阻尼策略 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]