静止轨道卫星东西位置保持控制参数的优化方法

为提高静止轨道卫星东西位置保持的轨道控制精度,提出一种优化轨道控制参数和推进剂消耗量估算的方法.这种方法考虑卫星轨道机动期间其姿态控制喷气对卫星轨道的摄动力,据此对位置保持参数中的轨控推力器点火时间进行补偿,并根据所有推力器的喷气时间估算推进剂消耗量,以修正轨控策略,实现更加精准的轨道控制效果.以在轨运行的静止轨道卫星的多次向西位置保持的变轨参数优化过程为实例,验证本方法的有效性和正确性,可应用于后续静止轨道卫星东西位置的实际操作中.

Optimization Method of East-West Station Keeping Control Parameters for Geostationary Satellites

According to the need of control accuracy for east-west station keeping of geostationary satellites,an optimization method of orbit-control parameters and propellant consumption are proposed. Considering the satellite orbital dragging force induced by attitude-control injection,the ignition time of orbitcontrol thrusters is compensated. The propellant consumption is estimated according to the ignition time of all thrusters. Some examples of the optimization process are given as illustration to show that the method is effective and correct,which can be used to correct the orbit-control strategy in practice.