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带两控制器刚体飞行器的姿态镇定
引用本文:李世华,田玉平.带两控制器刚体飞行器的姿态镇定[J].自动化学报,2003,29(2):168-174.
作者姓名:李世华  田玉平
作者单位:1.东南大学自动控制系,南京
基金项目:SupportedbyNationalNaturalScienceFoundationofP .R .China(6 9974 0 0 9)andtheNationalKeyProjectofP .R .Chi na (970 2 110 17)
摘    要:已知带两控制器的刚体飞行器系统不能被连续的纯状态反馈局部渐近镇定.有效的解 决方法包括时变反馈镇定方法和非连续反馈镇定方法.现有的时变反馈镇定方法设计均较为复 杂.已有的光滑时变反馈方法是非指数收敛的.本文通过引入辅助变量以及采用反馈线性化技术 设计出光滑时变的控制器.该方法设计简单且保证闭环系统状态是指数收敛的.仿真结果证明了 本文方法的有效性.

关 键 词:刚体飞行器    姿态控制    光滑时变反馈    局部镇定    指数收敛
收稿时间:2001-4-16

Attitude Stabilization of a Rigid Spacecraft with Two Controls
LI Shi-hua,TIAN Yu-Ping.Attitude Stabilization of a Rigid Spacecraft with Two Controls[J].Acta Automatica Sinica,2003,29(2):168-174.
Authors:LI Shi-hua  TIAN Yu-Ping
Affiliation:1.Department of Automatic Control,Southeast University,Nanjing
Abstract:Rigid spacecraft models with two controls can not be locally asymptotically stabilized by continuous pure state feedbacks. Available stabilization methods include the method using time varying feedbacks and the method using discontinuous feedbacks. Most of the existing time varying control results suffer from the drawback that the designed control laws are very complex. Moreover, the control laws using smooth time varying feedback do not stabilize the system at exponential convergence rate. A smooth time varying controller is developed by introducing an assistant state variable and using feedback linearization technique. Besides the advantage of design simplicity, the states of the closed loop system converge at exponential rate. The validity of our method is demonstrated by simulation results.
Keywords:Rigid spacecraft  attitude control  smooth time  varying feedback  local stabilization  exponential convergence
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