具有扰动和丢包的网络化控制系统的容错控制

摘要

研究存在传感器-控制器之间数据丢包的长时延网络控制系统(NCSs)的容错控制问题.考虑在随机外界扰动的基础上,进行传感器发生任意失效故障时NCSs容错控制器的设计.引入一类具有随机性的开关矩阵,建立带有随机外界扰动向量的丢包长时延NCSs的增广模型.结合H∞控制理论,构造适当的Lyapunov函数,通过求解矩阵不等式得到状态反馈控制器,并给出系统满足渐近稳定性的充分条件.仿真算例验证了结论的可行性及有效性.%The fault-tolerant control problem of long delay networked control systems (NCSs) with data packet loss sensor-controller is studied.On the basis of the random disturbance,the fault-tolerant controller of NCSs with sensor arbitrary fault is designed.By introducing a class of random switching matrix,an augmented model of long delay NCSs with packet loss and stochastic disturbance is established.Combined with H∞ control theory,the appropriate Lyapunov function is constructed.The state feedback controller can be obtained by solving with matrix inequality,and the sufficient conditions for asymptotic stability of the system are given.The feasibility and effectiveness of the conclusion are verified by simulation results.