多变量时滞系统鲁棒稳定性  

ROBUST STABILITY FOR MULTIVARIABLE SYSTEM WITH TIME DELAYS

作　　者：庞国仲[1] 孙丽华[1] 刘军[1] 薛福珍[1] 

机构地区：[1]中国科学技术大学自动化系

出　　处：《自动化学报》1997年第1期99-102,共4页Acta Automatica Sinica

摘　　要：基于Ｓｍｉｔｈ预估技术和多变量线性系统解耦鲁棒理论，研究了多变量时滞系统鲁棒稳定性，得到在Ｓｍｉｔｈ预估严格匹配时闭环系统稳定，且摄动系统为鲁棒对角优势。Based on the Smith precompensation technique and the decoupling robust theory, this paper studies the robust stability of multivariable system with time delays and derives the general conclusion that under the condition of Smith precompensation matching strictly, if the closed-loop system is stable and its perturbed system is robust diagonal dominance, the perturbed system must be robust stable. This result has the theoretical significance for research on the relation between system structure and its robustness, it also contributes the theoretical basis to robust design for the multivariable systems with uncertainty and time delays.

关 键 词：多变量时滞系统 鲁棒稳定性 Smith预估 

分 类 号：TP271.7[自动化与计算机技术—检测技术与自动化装置] TP13[自动化与计算机技术—控制科学与工程]