全电推进GEO卫星的变轨策略研究  

Orbit Transfer Strategies for GEO Satellites Using All-electric Propulsion

作　　者：田百义 雪丹[1] 黄美丽[1] 

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《航天器工程》2015年第2期7-13,共7页Spacecraft Engineering

基　　金：国家重大航天工程

摘　　要：针对采用全电推进平台的GEO卫星的轨道转移问题,在给定电推进轨道控制模型的基础上,开展卫星由GTO向GEO的变轨策略研究。首先,在轨道远地点高度不变的基础上,给出了给定控制解析解的变轨策略,并给出了该种策略轨道控制律的解析解。其次,文章基于李雅普诺夫优化原理给出了优化的变轨策略,并结合仿真算例计算了该种策略控制律的数值解。在电推进优化转移策略研究的基础上,还分析了全电推进平台卫星在不同推力下的变轨时间需求。文章的变轨策略可为电推进系统在航天领域的应用提供参考。Based on the low-thrust orbit control model, orbit transfer strategies for GEO satellites that use all-electric propulsion from GTO to GEO are analysed in this paper. Firstly, the analyti- cal strategy is investigated based on the fixed orbit apogee, and the analytical control law is given for this strategy. Secondly, the optimal transfer strategy is studied based on the Lyapunov feed- back control law, and the numerical control law is given combined with an example. Besides, the transfer time required is evaluated for different thrust according to the optimal transfer strategy, which is helpful to providing advice for the application of electric propulsion in space exploration.

关 键 词：全电推进 小推力 地球静止轨道 轨道转移 

分 类 号：V412.41[航空宇航科学与技术—航空宇航推进理论与工程] V474