一类时变时延网络控制系统的鲁棒容错控制

Robust fault-tolerant control of networked control systems with time-varying delays

针对一类具有时变时延的不确定网络控制系统,研究存在执行器失效情况的系统鲁棒容错控制问题.基于完整性容错控制思想和李亚普诺夫时延依赖稳定理论,给出了系统对执行器失效具有完整性的充分条件,设计了鲁棒容错控制器.仿真结果表明,该控制器不仅能保证系统鲁棒渐近稳定,而且使系统具有良好的动态性能.

For a class of networked control systems with time-varying delays, a robust fault-tolerant control problem with actuator failures is discussed. Based on the integrity fault-tolerant control theory and the time-delay-dependent stability criteria, the sufficient conditions for systems with integrity against actuator failures are given, and the robust fault-tolerant controller is designed. Simulation results show that the controller can not only guarantee the robust stability, but also obtain better dynamic performance.