数据包丢失的不确定奇异系统网络化容错控制

Networked fault tolerant control for uncertain singular systems with a packet dropout

针对网络化控制系统中存在数据包丢失的情况,研究了一类具有数据包丢失的不确定奇异系统容错控制问题。根据奇异系统网络丢包的特点,在执行器发生故障的情况下,将奇异网络化系统转换为奇异不确定切换系统。同时,利用矩阵不等式技巧研究该奇异切换系统在一定数据包丢失率影响下的反馈控制。给出了控制器的设计方法和系统正定的充分条件。通过数值仿真例子验证了该方法的有效性。

In this paper, a networked fault tolerant control problem is addressed for a class of uncertain singular systems with a packet dropout. In terms of the networked packet dropout of the singular system with a consideration of actuator fail- ure, the original system is transformed as an uncertain singularly switched system. Meanwhile, the feedback stabilization of the uncertain singularly switched system is studied under some certain data dropout rate by a matrix inequality technique. Further, the design method of a controller and the sufficient condition for stabilization of the system is presented. Finally, a numerical example illustrates the effectiveness of the proposed method.