| 摘要: |
| 研究了利用电推进系统进行GEO卫星轨道保持问题,给出了一种基于日预报的位置保持策略。首先,根据GEO卫星轨道漂移规律,分析了小推力推进系统每日进行位保的可行性;然后,针对四电推力器配置构型,给出了每日轨道误差、各推力器工作时间与区间的预测方法;进一步,针对给定的定点位置,根据位保效果对电推进安装角进行了优化选择,并研究了推力变化对位保效果和燃料消耗的影响。以东经100°定点为例对所给方法进行了仿真验证,数值结果表明:所给策略可有效用于GEO卫星位置保持。 |
| 关键词: GEO卫星 电推进 轨道漂移 位置保持 |
| DOI：10.15982/j.issn.2095-7777.2015.01.012 |
| 分类号: |
| 基金项目: |
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| Research on GEO Satellite Station Keeping Method Using Electric Propulsion |
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LIU Yuxin1,2, SHANG Haibin1,2, WANG Shuai1,2
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1.Institute of Deep Space Exploration Technology, Beijing Institute of Technology, Beijing 100081, China;2.Key Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, Beijing 100081, China
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| Abstract: |
| Problem of station keeping of GEO satellite using electric propulsion is analyzed, and a station keeping method based on daily prediction was proposed. On the basic of GEO satellite drift characters, feasibility of daily station keeping using low thrust was discussed. Furthermore, a method of predicting daily orbit error, thruster working time and phase was proposed specific to four thrusters configuration. Then it optimizes gimbaled angles subject to performance of station keeping at a geostationary position. The influence on control effects and fuel consumption with thrust changing is summarized. The method is evaluated by simulating at 100°E, which indicates that it can be used for GEO satellite station keeping. |
| Key words: GEO satellite electric propulsion Orbit drift station keeping |
