中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2014, Vol. 40 ›› Issue (1): 9-.doi: 10.3969/j.issn.1674-1579.2014.01.002

• 学术研究 • 上一篇    下一篇

空间平台姿态联合控制律设计

  

  • 出版日期:2014-02-25 发布日期:2014-02-26

Hybrid Attitude Control Law for Space Platform

  • Online:2014-02-25 Published:2014-02-26

摘要: 摘要: 空间平台发射有效载荷会对平台姿态产生很大的扰动,为快速消除扰动影响并使平台稳定,选取推力器与反作用飞轮进行姿态联合稳定控制,提出了基于推力器的极小时间控制律和基于反作用飞轮的滑模变结构控制律,前者用于快速抑制扰动,后者用于姿态精确稳定,并提出一种控制律切换方法.对空间动能发射后平台的姿态稳定过程进行数学仿真,结果表明,设计的姿态联合控制律能够快速抑制平台姿态扰动,最终消除挠性部件振动达到精确稳定.

关键词: 空间平台, 姿态联合控制, 推力器, 反作用飞轮

Abstract: Thrusters and reaction wheels are combined to stabilize the attitude of the platform as a large disturbance may exist during launch process. A thrusterbased minimum time control law and a reactionwheelbased sliding mode control law are investigated, and the switching condition of the hybrid control is presented. The rapidity, accuracy, and the flexible vibration suppression capacity of the control strategy are validated by the numerical simulation.

Key words: space platform, hybrid attitude control, thrusters, reaction wheels

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  • v448.22