摘要
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。
The problem of robust H∞ 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.
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2003年第4期641-643,共3页
Control Theory & Applications
基金
国家自然科学基金(60174019)
关键词
鲁棒H∞重构控制
不确定Delta算子系统
离散系统
离散域
parameteric uncertainties
actuator failure
reconfigurable control
robust H_∞ control
Riccati inequalities
