一类带有非匹配不确定性的非线性组合系统的按指数镇定

Exponential Stabilization for a Class of Nonlinear Composite Systems with Unmatched Uncertainties*

中文关键词  非线性组合系统  非匹配不确定性  按指数镇定  分散控制

英文关键词  nonlinear composite systems  unmatched uncertainty  exponential stabilization  decentralized control

中文摘要

      本文讨论一类带有非匹配不确定性的非线性大系统的按指数镇定，在标称系统是按指数稳定且非匹配不确定性为等效匹配的假设条件下提出了两种鲁棒控制算法.分散控制仅利用每个子系统的状态作为反馈信息，而双层控制使用每个子系统及相关子系统的状态. 最后用一个说明性的例子来说明本文所提出方法的可用性.

英文摘要

      In this paper，exponential stabilization for a class of nonlinear large-scale systems with unmatched uncertainties is investigated. Tow types of robust control algorithms are proposed to stabilize the uncertain nonlinear large-scale systems exponentially provided that the nominal systems are exponentially stable and the unmatched uncertainties are equivalently matched. The decentralized control utilizes the local state of each subsystems as the feedback information. The two-level control uses the local state as well as the states of the connecting subsystems. Finally，an illustrative example is given to demonstrate the utilization of the approach developed in this paper.