Global sampled-data output feedback control for a class of feedforward nonlinear systems  

作　　者：Zhihui WANG Junyong ZHAI Shumin FEI 

机构地区：[1]Key Laboratory of Measurement and Control of CSE, Ministry of Education,School of Automation, Southeast University

出　　处：《Control Theory and Technology》2014年第2期147-153,共7页控制理论与技术（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China （Nos. 61104068, 61273119）; Natural Science Foundation of Jiangsu Province （No. BK2010200）; China Postdoctoral Science Foundation Founded Project （No. 2012M511176）; the Fundamental Research Funds for the Central Universities （No. 2242013R30006）.

摘　　要：This paper investigates the problem of global output feedback stabilization for a class of feedforward nonlinear systems via linear sampled-data control. To solve the problem, we first construct a linear sampled-data observer and controller. Then, a scaling gain is introduced into the proposed observer and controller. Finally, we use the sampled-data output feedback domination approach to find the explicit formula for choosing the scaling gain and the sampling period which renders the closed-loop system globally asymptotically stable. A simulation example is given to demonstrate the effectiveness of the proposed design procedure.This paper investigates the problem of global output feedback stabilization for a class of feedforward nonlinear systems via linear sampled-data control. To solve the problem, we first construct a linear sampled-data observer and controller. Then, a scaling gain is introduced into the proposed observer and controller. Finally, we use the sampled-data output feedback domination approach to find the explicit formula for choosing the scaling gain and the sampling period which renders the closed-loop system globally asymptotically stable. A simulation example is given to demonstrate the effectiveness of the proposed design procedure.

关 键 词：Sampled-data control Global asymptotic stabilization Output feedback Feedforward nonlinear systems 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置] TP271[自动化与计算机技术—控制科学与工程]