%0 Journal Article
%T An attitude controller for under-actuated spacecraft with two flywheels<br>基于飞轮的欠驱动航天器姿态控制器设计
%A YANG Hong
%A WU Zhong
%A <br>阳洪
%A 吴忠
%J 控制理论与应用
%D 2008
%I 
%X The spacecraft with flywheels becomes under-actuated and the attitude controllability goes worse when only two flywheels can work.We deal with this problem for a rigid spacecraft with two flywheels.A new controller is designed by using the Backstepping design method,under the assumption of zero momentum for the spacecraft.The design process is in two steps:First,the desired angular velocity is designed to stabilize the attitude of the spacecraft,by considering the kinematics only.Next,the dynamics is combined to give the attitude control torque.The controller is a discontinuous one. It makes the attitude of the under-actuated spacecraft globally asymptotically converge to zero,and the system has a rapid and desirable transient process.Finally,simulation results indicate the feasibility of the controller presented above.
%K spacecraft
%K under-actuated system
%K attitude stabilization
%K nonlinear control<br>航天器
%K 欠驱动系统
%K 姿态稳定
%K 非线性控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=470EF8FE56C201550309123BC6CE6296&yid=67289AFF6305E306&vid=C5154311167311FE&iid=38B194292C032A66&sid=60E9AACF61B3107F&eid=25467A5A28500A25&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=13