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针对一类具有时变执行器故障的连续时间网络控制系统,研究了在通讯时延情况下的容错控制问题。基于故障的边界条件,首先将时变执行器故障建模成一类有界的时变参数。接着,结合Lyapunov原理和线形矩阵不等式(LMI)方法,提出了容错控制器的设计方法。该容错控制器能有效地提高含时变执行器故障的网络控制系统的完整性和鲁棒性。最后,通过仿真实验证明了该方法的有效性和可行性。
Aiming at a kind of continuous-time network control system with time-varying actuator fault, the fault-tolerant control problem under the condition of communication delay is studied. Based on the fault boundary conditions, the time-varying actuator fault is first modeled as a class of bounded time-varying parameters. Then, the design method of fault-tolerant controller is proposed according to Lyapunov principle and linear matrix inequality (LMI). The fault-tolerant controller can effectively improve the integrity and robustness of the networked control system with time-varying actuator faults. Finally, the simulation results show the effectiveness and feasibility of the method.