绳系卫星释放阶段的空间姿态非线性稳定控制 -- 西北工业大学学报,2016,34(1):60-66
论文:2016,Vol:34,Issue(1):60-66
引用本文:
王长青, 杜崇刚, 李爱军, Z.H.Zhu. 绳系卫星释放阶段的空间姿态非线性稳定控制[J]. 西北工业大学学报
Wang Changqing, Du Chonggang, Li Aijun, Z.H.Zhu. Nonlinear Stability Control of Tethered Sub-Satellite Attitude in Deployment[J]. Northwestern polytechnical university

绳系卫星释放阶段的空间姿态非线性稳定控制
王长青1, 杜崇刚1, 李爱军1, Z.H.Zhu2
1. 西北工业大学, 陕西 西安 710072;
2. York University, Toronto M3J 1P3
摘要:
主要考虑绳系卫星释放阶段的姿态运动对空间系绳系统稳定性产生的影响。基于欧拉-牛顿法建立绳系卫星的姿态动力学与运动学方程,研究了释放阶段系绳与卫星之间固定点存在静态不对称性时,卫星姿态的稳定性。为抑制释放阶段卫星姿态运动对系绳系统稳定性产生的不利影响,设计了一种基于Lyapunov函数方法的非线性姿态控制器。数值仿真及分析验证了该控制器可实现卫星姿态的稳定。
关键词:    绳系卫星    释放    姿态控制    Lyapunov函数   
Nonlinear Stability Control of Tethered Sub-Satellite Attitude in Deployment
Wang Changqing1, Du Chonggang1, Li Aijun1, Z.H.Zhu2
1. Northwestern Polytechnical University, Xi'an 710072, China;
2. York University, Toronto M3J 1P3, Canada
Abstract:
This paper studies the impact of tether deployment on the attitude dynamics of the tethered sub-satellite. The dynamics model of the tethered sub-satellite is derived from the Newton - Euler equation of motion and the stability of tethered sub-satellite's attitude motion is studied with the consideration of tether attachment offset from the symmetric axis of the satellite. Based on the dynamic analysis, a Lyapunov type nonlinear attitude controller is derived for the attitude motion of the tethered sub-satellite, which is disturbed by the unwanted offset of tether attachment. Simulation results and their analysis demonstrated preliminarily that the newly proposed controller is effective and efficient.
Key words:    tethered sub-satellite    deployment    attitude control    Lyapunov function   
收稿日期: 2015-09-02     修回日期:
DOI:
基金项目: 2011年度国家国际科技合作专项资助
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作者简介: 王长青(1973-),西北工业大学副教授、博士,主要从事飞行器控制与仿真、智能控制及空间系绳系统动力学与控制等研究。
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