线性时滞系统主动容错H_∞控制  

Active fault tolerant H_∞ control for linear time-delay systems

作　　者：董全超[1] 钟麦英[2] 

机构地区：[1]山东大学控制科学与工程学院,山东济南250061 [2]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《系统工程与电子技术》2009年第11期2693-2697,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60774071);国家高技术研究发展计划(863计划)(2008AA121302);国家重点基础研究发展计划(973计划)(2009CB724007)资助课题

摘　　要：采用一种具有广义内模控制结构的反馈控制器,研究一类线性时滞系统的主动容错H∞控制问题。针对可由外系统描述其动态行为的故障,设计了基于观测器的故障估计器,并在此基础上将在线故障估计信息用于控制器的故障补偿,提出了基于广义内模控制的主动容错控制系统设计方法。应用时滞系统有界实引理,推导并证明了问题可解的依赖于时滞的充分条件,给出了这类主动容错控制系统设计的具体步骤。算例验证了该方法的有效性。The problem of active fault tolerant H∞ control for a class of linear time-delay systems is dealt with by employing generalized internal model control architecture （GIMC）. For the possible fault whose dynamic behavior can be described by an exosystem, an observer-based fault estimator is used to estimate the fault. Based on the fault estimation, the GIMC active fault tolerant control system can implement online fault accommodation, and its design approach is proposed. A delay dependent sufficient condition on the existence of such an active fault tolerant control system is derived by applying a bound real lemma for linear time-delay systems, and a brief design procedure is also provided. Finally, a numerical example is given to demonstrate the effectiveness of the proposed method.

关 键 词：主动容错控制 时滞系统 广义内模控制 故障估计 观测器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]