4块问题的H∞优化设计  

An H Optimization Design for a Four-Block Problem

作　　者：杨富文[1] 涂健[2] 陈锦江[2] 

机构地区：[1]福州大学 [2]华中理工大学自动控制工程系

出　　处：《华中理工大学学报》1992年第1期21-25,共5页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金资助项目

摘　　要：本文对状态不完全可测系统的4块H~∞控制问题进行了研究,运用动态输出反馈的方法,通过系统的两个代数Riccati方程,实现了预定H~∞范数指标下的优化控制.与现有文献不同之处在于,本文方法在代数Riccati方程不加摄动项的情况下放宽了假定条件,而且控制器的计算较为简单.This paper is concerned about a four-block H∞() control problem of sys terns when not all states are available. A theorem for the H∞ optimization design of a dynamic output feedback controller is given. According to this theorem, a dynamic output feedback controller for which the norm of closed loop transfer function is lower than a given bound can be obtained by solving two standard algebraic Riccati equations. The difference between the present method and that given in existing literature lies in that, when there is no perturbation in the algebraic Riccati equations, the assumption conditions would be relaxed and so the controller design would be simplified.

关 键 词：H∞ 优化设计 4块问题 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]