不确定关联时滞大系统的鲁棒H_∞容错控制器的设计——LMI方法

Decentralized RobustFault-Tolerant Controller Design for Large-Scale Interconnected Time-Delay Systems-LMI Approach

针对关联项具有N×N个任意未知常时滞的不确定线性连续大系统 ,在执行器失效的情况下 ,提出了一种分散的鲁棒H∞ 容错控制器的设计方法 ,通过假设失效执行器的输出信号为能量有界的干扰输入信号 ,不确定关联时滞大系统的容错控制问题转化为分散的鲁棒H∞ 控制问题。控制器可以通过解线性矩阵不等式给出 ,因而具有数值易解性。最后用一个数值例子验证了该设计方法的有效性。

A methodology of designing decentralized robustfault tolerant controller for large scale interconnected time delay systems with unknown but constant delays is given .In the case of actuators susceptible to failure. By assuming the output of fault actuator to be energy bounded signal, the fault tolerant control problem of large scale interconnected time delay systems is transformed into the problem of control. The controller can be obtained by solving LMIs, which is tractable. Finally a simple example shows the effectiveness of the obtained approach.