一种利用角动量进行电推力矢量标定的算法

An electric thrust vector calibrating algorithm using angular momentum

航天器上越来越多地使用电推进进行轨道修正,电推力器的配置安装和使用方式决定了电推进的调整策略,大多数情况下在轨卫星都需要进行电推力矢量的标定和调整.针对国内某类型地球静止轨道卫星,提出一种利用在轨电推力器工作时引起的星体角动量变化来进行电推力矢量标定及调整的算法,同时给出了国内首次在轨电推力矢量标定及调整的应用实例.在轨标定结果表明算法正确可行,该算法为在轨卫星电推标定和调整提供了一种解决方案.

More and more electric propulsion (EP) systems have been used on spacecraft for orbit correction.The configuration,installation and usage modes of electric thruster determine the adjustment strategy of EP.In most cases,the satellite in orbit needs calibration and adjustment of the electric thrust vector.An algorithm to calibrate and adjust the electric thrust vector of a certain type of GEO satellite using the change of angular momentum was presented,as well as an application case of this algorithm in orbit for the first time in China.The result of in-orbit calibration suggests that the algorithm is correct and practical,providing a solution for the calibration and adjustment of EP on satellite.