带有执行器故障的网络控制系统的自适应容错H_∞控制

Adaptive fault-tolerant H-infinity control for networked control systems with actuator faults

针对带有执行器故障的网络控制系统,提出了一种自适应容错控制方法.首先基于最近提出的一种新的网络诱导时滞模型,设计了状态反馈形式的自适应容错控制器.然后以线性矩阵不等式的形式给出了控制器存在的充分条件.该条件不仅保证了系统在执行器故障和正常情形下均能达到稳定,而且使得其H∞性能最优.最后通过一个数值例子证明了所提方法的有效性.

An adaptive fault-tolerant control approach to networked control systems（NCSs） with actuator faults is presented. Based on a new network-induced delay model proposed recently, we design an adaptive state feedback controller. A sufficient condition of existence of a controller is given in terms of linear matrix inequality（LMI）, which guarantees in the H-infinity sense the stability of NCSs under normal and faulty conditions. An example illustrates effectiveness of the proposed method.