论文部分内容阅读
针对一类具有范数有界不确定性不满足匹配条件的线性连续系统,对易于失效的执行器进行容错控制设计,重新研究了圆域极点指标、H∞指标和H2指标约束下的满意容错控制器的设计问题。基于线性系统的极点配置理论和H2/H∞控制理论,利用线性矩阵不等式(LMI)方法,在假设失效执行器的输出为任意能量有界信号的情况下,分析了这3类指标在相容情况下的取值范围,并在相容指标约束下得到了新的满意容错控制器的设计方法,给出了满意容错控制器的具体设计步骤。所设计的满意容错控制器使闭环系统的极点在一个给定的圆域内,并且保持着系统给定的H2/H∞性能要求。
Aiming at a class of linear continuous systems with norm-bounded uncertainties that do not satisfy the matching conditions, a fault-tolerant control design is designed for actuators that are easy to fail, and the satisfactory fault tolerance under the constraints of the circular pole, H∞ index and H2 index is re-studied. Controller design issues. Based on the pole assignment theory of linear system and H2 / H∞ control theory, linear matrix inequality (LMI) method is used in the case that the output of the failure actuator is an arbitrary energy bounded signal. And the design method of the new fault-tolerant controller is given under the constraint of the compatibility index. The design procedure of a satisfactory fault-tolerant controller is given. The designed fault tolerant controller allows the poles of the closed-loop system to be within a given circular domain and maintains the system’s given H2 / H∞ performance requirements.