| 空间平台姿态联合控制律设计 |
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| 引用本文： | 王志刚,晏也绘,周嘉星,邓逸凡.空间平台姿态联合控制律设计[J].空间控制技术与应用,2014(1):9-14. |
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| 作者姓名： | 王志刚 晏也绘 周嘉星 邓逸凡 |
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| 作者单位： | [1]西北工业大学航天学院,西安710072 [2]航天飞行动力学技术重点实验室,西安710072 |
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| 基金项目： | 国家高技术研究发展计划（863）资助项目（2012AA050908）. |
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| 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.
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| 关 键 词： | 空间平台 姿态联合控制 推力器 反作用飞轮 |
Hybrid Attitude Control Law for Space Platform |
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| WANG Zhigang,YAN Yehui,ZHOU Jiaxing,DENG Yifan.Hybrid Attitude Control Law for Space Platform[J].Aerospace Contrd and Application,2014(1):9-14. |
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| Authors: | WANG Zhigang YAN Yehui ZHOU Jiaxing DENG Yifan |
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| Institution: | 1. College of Astronautics, Northwestern Polytechnical University, Xi ＇ an 710072, China; 2. National Key Laboratory of Aerospace Flight Dynamics, Xi＇ an 710072, China) |
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| 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. |
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| Keywords: | space platform hybrid attitude control thrusters reaction wheels |
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