Adaptive Output-feedback Control for Stochastic Nonlinear Systems with Zero dynamics
A class of stochastic nonlinear systems with unknown bounded parameters and zero dynamics are considered in this paper. By a series of coordinate changes, the original system is re-parameterized, which is suit for using the reduced-order observer and 1-dimension adaptive law to reduce the dynamic order of closed-loop system. In adaptive backstepping design, the quadratic and the quartic Lyapunov functions are presented simultaneously to reduce the static order of nonlinearities. It is shown that all the solutions of the closed-loop system are regulated to an arbitrarily small neighborhood of the origin in probability. Due to the order reduction of the controller, the design scheme in this paper has more practical values. A simulation example demonstrates the control scheme.
Stochastic control nonlinear system adaptive backstepping control
LIU Man WU Zhao-jing WANG Wei DUAN Xiao-dong
Faculty of Mathematics, Dalian Nationalities Univercity, Dalian, 116600, China. Faculty of Automatio Department of Mathematics and Information Science, Yantai University, Yantai, 264005, China Faculty of Automation, Dalian University of Technology, Dalian, 116023, China Faculty of Mathematics, Dalian Nationalities Univercity, Dalian, 116600, China
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
1793-1800
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）