Global output feedback stabilization of upper-triangular nonlinear time-delay systems  

作　　者：Guizhi MENG Kemao MA 

机构地区：[1]Control and Simulation Center,Harbin Institute of Technology [2]Department of Applied Mathematics,Harbin University of Science and Technology

出　　处：《控制理论与应用（英文版）》2012年第4期533-538,共6页

基　　金：supported by the National Natural Science Foundation of China(No.60736022)

摘　　要：In this paper, the problem of global output feedback stabilization for a class of upper-triangular nonlinear systems with time-varying time-delay in the state is considered. The uncertain nonlinearities are assumed to be higher-order in the unmeasurable states. Based on the extended homogeneous domination approach, using a low gain observer in combi- nation with controller, the delay-independent output feedback controller makes closed-loop system globally asymptotically stable under a homogeneous growth condition.In this paper, the problem of global output feedback stabilization for a class of upper-triangular nonlinear systems with time-varying time-delay in the state is considered. The uncertain nonlinearities are assumed to be higher-order in the unmeasurable states. Based on the extended homogeneous domination approach, using a low gain observer in combi- nation with controller, the delay-independent output feedback controller makes closed-loop system globally asymptotically stable under a homogeneous growth condition.

关 键 词：Upper-triangular nonlinear time-delay system Lyapunov-Krasovskii functionals Globally output feed-back stabilization 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] O174[自动化与计算机技术—控制科学与工程]