Design for robust stabilization of nonlinear systems with uncertain parameters①
来源期刊:中南大学学报(英文版)2004年第1期
论文作者:赖旭芝 文静 吴敏
文章页码:102 - 104
Key words:nonlinear system; robust stabilization; Lyapunov stability
Abstract: Based on Lyapunov stability theory, a design method for the robust stabilization problem of a class of nonlin-ear systems with uncertain parameters is presented. The design procedure is divided into two steps: the first is to design controllers for the nominal system and make the system asymptotically stabi1ize at the expected equilibrium point; the sec-ond is to construct closed-loop nominal system based on the first step, then design robust controller to make the error of state between the origina1 system and the nominal system converge to zero, thereby a dynamic controller with the con-structed closed-loop nominal system served as interior dynamic is obtained. A numerical simulation verifies the correctness of the design method.