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.
出处
《信息与控制》
CSCD
北大核心
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)
关键词
容错控制
执行器故障
相容性理论
静态输出反馈
fault-tolerant control
actuator failure
consistency theory
static output feedback
