陕西师范大学学报:自然科学版
陝西師範大學學報:自然科學版
협서사범대학학보:자연과학판
Journal of Shaanxi Normal University: Nat Sci Ed
2011年
4期
15-18,22
,共5页
奇异摄动系统%线性矩阵不等式%H∞控制%离散时间
奇異攝動繫統%線性矩陣不等式%H∞控製%離散時間
기이섭동계통%선성구진불등식%H∞공제%리산시간
singularly perturbed system%linear matrix inequality%H∞ control%discrete-time
研究了离散时间奇异摄动系统的H∞控制问题.基于线性矩阵不等式,给出了求奇异摄动参数ε上界的一种方法.得到了一个求容许上界ε*的充分条件,使得对于任意的ε∈(0,ε*],离散时间奇异系统是渐近稳定的并且满足给定的H∞范数约束.通过数值例子验证了方法的有效性.
研究瞭離散時間奇異攝動繫統的H∞控製問題.基于線性矩陣不等式,給齣瞭求奇異攝動參數ε上界的一種方法.得到瞭一箇求容許上界ε*的充分條件,使得對于任意的ε∈(0,ε*],離散時間奇異繫統是漸近穩定的併且滿足給定的H∞範數約束.通過數值例子驗證瞭方法的有效性.
연구료리산시간기이섭동계통적H∞공제문제.기우선성구진불등식,급출료구기이섭동삼수ε상계적일충방법.득도료일개구용허상계ε*적충분조건,사득대우임의적ε∈(0,ε*],리산시간기이계통시점근은정적병차만족급정적H∞범수약속.통과수치례자험증료방법적유효성.
The problem of H∞ control of discrete-time singularly perturbed systems is studied.A method of evaluating the upper bound of singular perturbation parameter ε is given in terms of linear matrix inequalities.A sufficient condition on searching for the allowable upper bound ε* is obtained,so that the discrete-time singularly perturbed system is asymptotically stable and satisfies a prescribed H∞ norm bound for any singular perturbation parameter ε∈(0,ε*].A numerical example is given to illustrate the effectiveness of the proposed method.