多指标约束下离散时间系统的满意容错控制  

Satisfactory Fault-tolerant Control for Discrete-time Systems with Multi-index Constraints

作　　者：韩笑冬[1] 葛龙[1] 王执铨[1] 

机构地区：[1]南京理工大学自动化学院,江苏南京210094

出　　处：《信息与控制》2008年第5期544-549,共6页Information and Control

基　　金：国家自然科学基金资助项目(60574082)

摘　　要：针对一类不确定性由不相关扰动参数矩阵描述的线性离散时间系统,研究了当执行器发生故障时的静态输出反馈满意容错控制问题.在更实际、更一般的执行器连续增益故障模型下,所设计的控制器确保闭环系统同时满足期望的区域极点指标、稳态方差指标和H∞范数指标约束.分析了容错控制中上述指标的相容性,并给出了静态输出反馈满意容错控制器的有效设计方法.仿真算例验证了该方法的有效性.For a class of linear discrete-time systems with uncertainties described by unrelated disturbance parameter matrices, the problem of static output feedback satisfactory fault-tolerant control is investigated under actuator failures. Based on a more practical and general model of continuous gain actuator faults, the closed-loop systems are guaranteed by the designed controller to simultaneously meet the required constraints on regional pole index, steady variance index and H∞ norm index. The consistency of the performance indices mentioned above is also discussed for fault-tolerant control. Meanwhile, the effective static output feedback satisfactory fault-tolerant controller design method is provided. A simulation example shows the validity of the proposed method.

关 键 词：容错控制 执行器故障 相容性理论 静态输出反馈 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]