摘要
研究了一类包含状态时滞和参数不确定系统基于状态观测器的鲁棒H∞可靠控制问题.目的是设计状态观测器不仅使得执行器正常工作时系统渐近稳定,而且使得对于系统中预先指定的执行器子集内的执行器失效时,相应的闭环系统也渐近稳定.借助于议论广义的Riccati矩阵不等式,给出了控制器存在的条件,同时给出了所期望控制器的解析式.最后,通过一个仿真例子,说明该方法的可行性.
The reliable control problem of the robust H∞ controller design for a class of uncertain time- delay systems with time-varylng parameter is studied. A state feedback controller is designed that asymptotically stabilizes the closed-loop system not only in the case of actuators normal but also in the case of actuator failures among a specified subset of actuators. By virtue of the modified Riccati matrix inequallity, the sufficient condition for existence of desired controller is obtained. Mean while, the analytical expression of the set of desired controllers is also presented. A simulating is presented to demonstrate the applicability of the proposed method.
基金
教育部科学技术重点研究基金资助项目(205073)
安徽省教育厅科研基金资助项目(2005kj209)
