%0 Journal Article
%T A combination feedback system of nonlinear observer and energy-based control<br>一种非线性观测器和能量结合的反馈控制系统
%A XU Qing-yuan
%A YANG Zhi
%A FAN Zheng-ping
%A LI Xiao-dong
%A <br>许清媛
%A 杨智
%A 范正平
%A 李晓东
%J 控制理论与应用
%D 2011
%I 
%X According to the separation principle of the high gain observer and state feedback control, we propose a feedback control system based on the estimated states. In a vertical underactuated translational oscillator with nonlinear rotating actuator, we choose a proper gain to make the observed values converge rapidly to the state values, and choose an appropriate Lyapunov function based on the system energy to ensure the asymptotic stability for the feedback system. System analysis and simulation results show that the method proposed is better than the method based on nonlinear observer and sliding model in dynamics, and it is easier to be implemented in engineering.
%K high gain observers
%K energy-based state feedback
%K Lyapunov function
%K nonlinear systems
%K nonlinear observers<br>高增益观测器
%K 基于能量法状态反馈
%K 李雅普诺夫函数
%K 非线性系统
%K 非线性观测器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=69B737332CF19E8A24FED367629545F9&yid=9377ED8094509821&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=4AD960B5AD2D111A&eid=933658645952ED9F&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=15