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研究了一类同时具有参数不确定性、外界干扰和时滞的线性系统执行器失效的问题 .给出了该类系统一种鲁棒H∞ 容错控制器的设计方法 .通过假设失效执行器的输出信号是任意能量有界的干扰信号 ,不确定线性时滞系统的容错控制问题转化成了鲁棒H∞ 控制问题 .控制器可以通过解修正的代数黎卡提方程得到 ,而且控制器与时滞常数无关 .设计例子证明了所给方法的有效性 .
The problem of failure of a linear system actuator with parameter uncertainty, external disturbance and time delay is studied. A robust H∞ fault-tolerant controller design method for this kind of system is given. The output signal is an arbitrary energy bounded disturbance signal, and the fault-tolerant control problem of uncertain linear time-delay system is transformed into a robust H∞ control problem. The controller can be obtained by solving a positive algebraic Riccati equation, Hysteresis constant has nothing to do.The design example proves the effectiveness of the given method.