具有输入滞后的不确定系统时滞依赖鲁棒H_∞可靠控制  

Robust H_∞ Reliable Control for Uncertain Systems with Input Delay

作　　者：孙金龙[1] 李宁[2] 滕青芳[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070 [2]西安工业大学电子信息工程学院,陕西西安710082

出　　处：《兰州交通大学学报》2010年第1期43-47,共5页Journal of Lanzhou Jiaotong University

摘　　要：讨论了一类具有输入时变时滞不确定系统,研究了在执行器发生故障情况下系统全局渐进稳定的鲁棒H∞可靠控制设计的问题.首先建立了包含参数不确定、控制输入滞后、执行器故障等的系统状态模型;然后根据Lya-punov稳定性理论,推导出系统存在时滞依赖型鲁棒H∞可靠控制器应满足的矩阵不等式,并将其转化为线性矩阵不等式.数值仿真结果表明:提出的控制器设计方法具有满意的控制性能要求.The robust H∞reliable control with stabilization is investigated for input time-varying delayed uncertain systems against the actuator failure. A state-space model containing parameter uncertain, input time-varying delay,actuator failure,etc, is established. A robust H∞ reliable Control algorithm is also pro- posed based on both state feedback and I.MI approaches. The controller is derived for a sufficient condition given by the LMI. Finally,the simulation results show that the proposed method is feasible.

关 键 词：鲁棒H∞容错控制 输入时变时滞 时滞相关 执行器失效 LMI 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]