首页 | 本学科首页   官方微博 | 高级检索  
     检索      

采用变速控制力矩陀螺的一种姿态/能量一体化控制研究
引用本文:贾英宏,徐世杰.采用变速控制力矩陀螺的一种姿态/能量一体化控制研究[J].宇航学报,2003,24(1):32-37.
作者姓名:贾英宏  徐世杰
作者单位:1. 哈尔滨工业大学137信箱,哈尔滨,150001
2. 北京航空航天大学宇航学院,北京,100083
基金项目:国家自然科学基金资助 (批准号 :10 172 0 12 )
摘    要:本文研究采用变速控制力矩陀螺(VSCMG)的航天器姿态/能量一体化控制技术。首先建立了以变速控制力矩陀螺为执行机构的航天器姿态动力学模型,并给出了全局稳定的姿态反馈控制律。以控制力矩陀螺群的构型奇异量度为依据,分别考虑了VSCMG的控制力矩陀螺(CMG)工作模式和反作用飞轮(RW)工作模式。在陀螺群接近奇异时启用转子的反作用飞轮工作模式来补偿控制力矩陀螺采用鲁棒伪逆操纵律时所引起的力矩误差;在陀螺群远离奇异状态时,用控制力矩陀螺来补偿转子储能带来的干扰力矩。在姿态控制的同时利用转子的变速特性,完成按照给定的功率存储/释放能量,并在陀螺群远离奇异状态时对储能过程中转子的转速进行调节,以保持良好地动量包络外形。最后以某航天器的姿态控制为例,给出了数值仿真结果。

关 键 词:变速控制力矩陀螺  储能  姿态控制
文章编号:1000-1328(2003)01-0032-06
修稿时间:2002年3月29日

Study on integrated attitude/power control using variable speed control moment gyros
JIA Ying hong,XU Shi jie.Study on integrated attitude/power control using variable speed control moment gyros[J].Journal of Astronautics,2003,24(1):32-37.
Authors:JIA Ying hong  XU Shi jie
Abstract:The integrated attitude and power control technology of a spacecraft using variable speed control moment gyros(VSCMG) is studied.The attitude dynamic equation of a spacecraft with VSCMG attached and a global asymptotical attitude feedback control law are presented firstly.Based on the singularity index of the CMG,the control law of the VSCMG is discussed by studying the CMG mode and the reacted wheel (RW) mode respectively.The RW mode is employed to compensate for the torque error due to the singularity robust steering law when the CMG is close to singularity,and the CMG is used to compensate for the disturbance torque caused by energy storage of the rotors when the CMG is far away from singularity.At the same time of attitude control,the variable spin rates of the rotors are used to store/discharge energy by given power.Moreover,the spin rates of the rotors are adjusted when the CMG is far away from singularity to keep well shaped momentum envelope.The numerical simulation results are presented on the sample of the attitude control of a spacecraft.
Keywords:Variable speed control moment gyros  Energy storage  Attitude control
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号