宇航学报 ›› 2017, Vol. 38 ›› Issue (1): 50-56.doi: 10.3873/j.issn.1000-1328.2017.01.007

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绳系卫星被动释放无超调脉宽脉频调制控制

朱兵,战兴群,朱正宏,刘铭,刘宝玉   

  1. 1.上海交通大学航空航天学院,上海 200240; 2. 约克大学地球空间科学与工程系,多伦多 M3J 1P3
  • 收稿日期:2016-05-10 修回日期:2016-10-16 出版日期:2017-01-15 发布日期:2017-01-25
  • 基金资助:

    国家自然科学基金(11372177)

Pulse Width and Pulse Frequency Modulation Control of Tethered Satellite Passive Deployment

ZHU Bing, ZHAN Xing qun, ZHU Zheng hong, LIU Ming,LIU Bao yu   

  1. 1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Department of Earth and Space Science and Engineering, York University, Toronto M3J 1P3, Canada
  • Received:2016-05-10 Revised:2016-10-16 Online:2017-01-15 Published:2017-01-25

摘要:

针对空间绳系卫星释放过程中无超调释放和正向速度约束问题,提出一种新的离散控制绳系无超调释放的方法。该方法基于绳系卫星系统动力学模型建立离散控制的动力学模型,通过反馈线性化和反步法设计出理想的释放轨迹。提出一种基于输入受限的离散控制算法,并运用该算法进行了理想释放轨迹跟踪仿真试验。结果表明,该离散控制方法可以实现绳系无超调释放,并保持释放速度始终非负。仿真结果验证了输入受限离散控制方法在空间绳系卫星释放过程中的有效性,为空间绳系卫星释放系统设计提供了参考。

关键词: 绳系卫星, 绳系释放, 无超调, 脉宽脉频, 轨迹跟踪, 离散控制

Abstract:

A new distributed control method is proposed for satisfying the mission requirements of non-overshooting deployment and positive tether velocity constraint. A dynamics model of distributed control by referring to space tether deployment dynamics is developed, as well as a desired reference deployment trajectory with feedback linearization method and back-stepping method. We propose a new pulse-width and pulse-frequency modulation control law with input limitation and apply it to the simulation of tethered satellites deployment trajectory-tracking. The simulation results show its performance with non-overshooting deployment; meanwhile, the positive deployment velocity can also be guaranteed simultaneously. It validates the effectiveness of distributed control method, which could be a reference for future space tethered satellites deployment system design. 

Key words: Tethered satellite, Tether deployment, Non overshooting, Pulse width and pulse frequency ;Trajectory tracking ;Distributed control

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