切换系统的同时故障估计与容错控制

发布时间：2018-06-13 06:25

  本文选题：故障诊断 + 容错控制　； 参考：《控制理论与应用》2017年01期

【摘要】：当切换系统发生故障时,通常需要依次进行故障诊断和容错控制.为了提高切换系统故障诊断的可靠性和容错控制的及时性,本文提出一种同时故障估计与容错控制方法.针对满足平均驻留时间约束的线性切换系统,首先建立了基于状态观测器的同时故障估计与容错控制器,并将其设计问题转化为了加权H∞性能指标下增广误差系统的多目标求解问题.然后使用平均驻留时间技术和多Lyapunov函数方法设计了故障估计与容错控制器的参数,又通过松弛矩阵方法进一步得到了保守性较低的结果.最后,利用一个例子对本文所提方法进行了仿真,证实了该方法的有效性.
[Abstract]:When a switching system fails, fault diagnosis and fault-tolerant control are usually needed in turn. In order to improve the reliability of fault diagnosis and the timeliness of fault-tolerant control in switching systems, a method of simultaneous fault estimation and fault-tolerant control is proposed in this paper. For linear switched systems with average dwell time constraints, a simultaneous fault estimation and fault tolerant controller based on state observer is established. The design problem is transformed into the multi-objective problem of the augmented error system under the weighted H 鈭，

本文编号：2013052