不确定Delta算子系统的鲁棒H∞重构控制

讨论一类含有参数不确定和执行器故障的Delta算子系统鲁棒H_∞ 重构控制设计问题. 通过利用故障检测与隔离(FDI)技术, 在考虑不可检测故障执行器输入为能量有界的干扰信号情形下, 基于H_∞ 干扰抑制的思想, 给出了系统可鲁棒H_∞ 镇定的充分条件. 所设计的控制器可使闭环系统鲁棒稳定, 而且对可允许的不确定性和执行器故障具有一定的H_∞ 性能. 数值例子说明了本文设计方法的有效性.

Robust H-infinity reconfigurable control of a class of uncertain Delta operator systems with actuator failure

The problem of robust H-infinity reconfigurable control for a class of Delta operator systems with parameter uncertainties and actuator failures was discussed. Under the assumption that the outputs of undetectable faulty actuator were arbitrary energy-bounded signals, a sufficient condition for robust stabilization and a method for the design of corresponding controllers were given. The controller could not only stabilize the controlled systems, but also guarantee H?properties against all admissible uncertainties and actuator failure. A numerical example was given to show the effectiveness of the designed method.