摘要
利用Lyapunov方法,研究了一类Takagi-Sugeno(T-S)模糊离散广义系统的稳定性问题.给出了该系统一致正则、因果和稳定的充分条件,并把此条件用线性矩阵不等式(LMI)表示.通过矩阵分解把广义系统的非严格矩阵不等式约束转化成严格的矩阵不等式约束,从而可以用LMI工具箱一次判定系统的稳定性,算例说明所给方法使用方便.
The stability problem was studied for a class of Takagi-Sugeno(T-S) fuzzy discrete descriptor system by using Lyapunov's method. The sufficient conditions to test the consistency regularity and causality and stability are given for the system. The conditions are expressed as linear matrix inequality(LMI). The nonstrict LMI restricted conditions are transformed into the strict ones by means of the matrix decomposition. Verification of the stability for the system can be done only once by using LMI Toolbox. A numerical example demonstrates the simplicity of the proposed method.
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2007年第1期113-116,共4页
Control Theory & Applications
基金
国家自然科学基金资助项目(60574011)
937计划课题资助项目(2002CB312200-04)
辽宁省普通高校学科带头人基金资助项目(124210)
智能控制理论及应用辽宁省高校重点实验室基金资助项目(200521308)
关键词
T-S模糊系统
离散广义系统
稳定
线性矩阵不等式
T-S fuzzy systems
discrete descriptor systems
stability
linear matrix inequality(LMI)