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针对一类具有范数有界不确定性的线性连续随机系统,研究了极点指标、H_∞指标和方差指标约束下的动态输出反馈满意容错控制问题。在执行器连续增益故障模型下,分析了容错控制中3类期望指标的相容性,并给出了3类指标约束下具有最小能量的动态输出反馈满意容错控制器的设计方法。仿真算例验证了方法的有效性和对系统进行满意容错控制的必要性。
Aiming at a class of linear continuous stochastic systems with norm-bounded uncertainties, the problem of satisfactory fault-tolerant control of dynamic output feedback under the constraints of the pole index, H_∞ index and variance index is studied. Under the continuous gain failure model of actuator, the compatibility of three kinds of expectation indexes in fault-tolerant control is analyzed, and the design method of dynamic output feedback satisfactory fault-tolerant controller with minimum energy under three kinds of indexes is given. The simulation example verifies the effectiveness of the method and the necessity of a satisfactory fault-tolerant control of the system.