%0 Journal Article
%T Adaptive Output Feedback Control for Piezoactuator-driven Stage<br>压电陶瓷驱动平台自适应输出反馈控制
%A ZHANG Li-Jun
%A YANG Li-Xin
%A GUO Li-Dong
%A SUN Li-Ning
%A <br>张利军
%A 杨立新
%A 郭立东
%A 孙立宁
%J 自动化学报
%D 2012
%I 
%X The accuracy and dynamic characteristics of piezoactuator-driven stage mainly depend on whether the controller can effectively compensate the inherent hysteresis of piezoactuator. For this problem, a neural network (NN) based adaptive output feedback control scheme is proposed. In order to avoid the impact of the velocity measurement noise of the piezoactuator, a high-gain observer is used to estimate unmeasured velocity of the system, and a neural network dynamic compensation strategy is proposed. A robust controller is used to compensate the neural network approximation error and the observer estimation error. Finally, the stability analysis is given by Lyapunov stability theory. Simulation results show the effectiveness of the proposed method.
%K 输出反馈控制
%K 压电陶瓷驱动平台
%K 自适应控制
%K 神经网络
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=21CB0722CA48644F46357F7DC672A631&yid=99E9153A83D4CB11&vid=16D8618C6164A3ED&iid=9CF7A0430CBB2DFD&sid=617DEAEB2884AFC7&eid=A7E55B1B50263111&journal_id=0254-4156&journal_name=自动化学报&referenced_num=0&reference_num=14