中国空间科学技术

中国空间科学技术 ›› 2014, Vol. 34 ›› Issue (5): 49-55.doi: 10.3780/j.issn.1000-758X.2014.05.007

• 研究探讨 • 上一篇    下一篇

基于偏置角动量的欠驱动航天器姿态保持控制

 郭朝礼1, 王淑一1，2, 张笃周1，2   

  1. （1北京控制工程研究所，北京100190） （2空间智能控制技术重点实验室，北京100190）
  • 收稿日期:2013-11-27 修回日期:2014-02-27 发布日期:2014-10-25 出版日期:2014-10-25
  • 作者简介:郭朝礼 1987年生，2014年获北京控制工程研究所控制理论与控制工程专业硕士学位，助理工程师。研究方向为航天器姿态控制。

Underactuated Spacecraft Attitude Hold Control Based on Bias Momentum Wheel

 GUO  Chao-Li1, WANG  Shu-Yi1，2, ZHANG  Du-Zhou1，2   

  1. (1BeijingInstituteofControlEngineering,Beijing100190)
    (2ScienceandTechnologyonSpaceIntelligentControlLaboratory,Beijing100190)
  • Received:2013-11-27 Revision received:2014-02-27 Online:2014-10-25 Published:2014-10-25

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1701

被引次数

6

摘要： 对有扰情况下欠驱动航天器三轴姿态保持控制问题进行了研究，提出一种基于俯仰偏置动量轮和滚动轴推力器的姿态保持控制方法。该方法基于偏置动量航天器滚动-俯仰轴耦合的原理实现，避免了欠驱动零动量航天器平衡点附近欠驱动轴耦合弱的问题；将航天器的姿态运动分为长周期运动和短周期运动，用极点配置方法进行控制律设计，给出保证系统稳定的参数选取范围，求出了系统稳态误差。最后，通过数值仿真验证了所设计的控制器不但能快速消除初始姿态偏差，而且能抵抗外干扰将航天器姿态保持在平衡点附近。

关键词: 偏置动量轮, 推力器, 欠驱动, 姿态保持控制, 航天器

Abstract: To maintain the three axis attitude of the underactuated nadir-pointing spacecraft, an attitude hold control method based on the pitch-axis bias momentum wheel and roll-axis thruster was proposed.The method was based on coupling between the roll and yaw axes of biased-momentum spacecraft, and could avoid the problem that zero momentum spacecraft′s underactuated axis and actuated axis were almost decoupled. Spacecraft attitude dynamics was divided into long period dynamics and short period dynamics, and the control laws were designed by the pole assignment method. The scale of control parameters was confirmed, and the stable state error of the control system was obtained. The simulation results show that the designed controller can eliminate initial attitude error of the spacecraft and resist the external disturbance, and the spacecraft attitude is maintained at the equilibrium point.

Key words: Bias momentum wheel, Thruster, Underactuated, Attitude hold control, Spacecraft