线性时变系统的分散自适应控制  

Decentralized Adaptive Control of Time varying Linear Plants

作　　者：游少鹏[1] 李军[1] 

机构地区：[1]四川联合大学自动化系

出　　处：《四川联合大学学报（工程科学版）》1997年第3期1-10,共10页

基　　金：国家自然科学基金

摘　　要：本文提出对一种由互连子系统组合而成的线性时变系统的分散自适应控制算法。在研究某个子系统时，把其它子系统的影响看成干扰输入，用多项式逼近时变参数，由带死区的修正ＲＬＳ估计器辨识未知参数，自适应控制律由极小化性能函数导出。从理论上证明了所提算法可实现大系统的输入输出稳定。The decentralized adaptive control for a class of time varing linear systems which are composited by interconnected subsystems is discussed. When studying a subsystem. We consider the influence of the other subsystems as the input of disturbances, The polynomial approximation scheme is proposed to approximate unknown time varying parameters of the system, A modlified RLS estimator with a relative dead zome is applied to identify the unknown parameters, The control law is derived by minimizing a quadratic cost function. It is shown theoretically that the input-output stability of the large scale systems can be established, simulation result demonstate the effectiveness of the proposed algorithm.

关 键 词：线性时变系统 自适应控制 分散自适应控制 

分 类 号：O231[理学—运筹学与控制论] TP13[理学—数学]