一类不确定非线性时滞系统的鲁棒容错控制

针对一类非线性时滞系统,基于Lyapunov稳定性理论,讨论了不确定参数系统的鲁棒容错控制问题。当故障在失效的传感器以及失效的执行器发生时,且非线性不确定性满足一定的增益条件,通过基于线性矩阵不等式(LMI)方法各自给出了故障在传感器和执行器失效发生时,闭环系统渐近稳定的存在条件及相应控制器的设计方法。一个设计算例的仿真结果表明了该方法是有效的。

Robust Fault-tolerant Control for a Class of Uncertain Nonlinear Time-delay Systems

For a class of nonlinear time-lag systems, which is based on Lyapunov stability theory, the problem of?robust fault-tolerant control for uncertain parameter systems is discussed. When the failure occurs in failed sensor and actuator, the nonlinear uncertainties satisfy certain gain conditions, and based on that linear matrix inequality (LMI)approach gives the existence condition of asymptotic stability of closed-loop system and the design method of corresponding controller when the breakdown caused by the occurrence of two kinds of failure, the simulation results of a design example show that the method is effective.