具有扰动和丢包的网络化控制系统的容错控制  

Fault-tolerant control of networked control systems with packet loss and disturbance

作　　者：李媛[1,2] 杨凇迪 

机构地区：[1]沈阳工业大学理学院,沈阳110870 [2]天津大学电气与自动化工程学院,天津300072

出　　处：《黑龙江大学自然科学学报》2017年第5期518-523,共6页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(61673280)

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 control- ler 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. Com- bined with H∞ control theory, the appropriate Lyapunov function is constructed. The state feedback con- troller can be obtained by solving with matrix inequality, and the sufficient conditions for asymptotic sta- bility of the system are given. The feasibility and effectiveness of the conclusion are verified by simulation results.

关 键 词：网络控制系统 容错控制 数据丢包 外部扰动 长时延 传感器故障 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]