执行器故障及外界干扰下动态系统的容错控制(英文)  

On Fault-tolerant Control of Dynamic Systems with Actuator Failures and External Disturbances

作　　者：范玲玲 宋永端 

机构地区：[1]Center for Intelligent Systems and Renewable Energy,Beijing Jiaotong University [2]National Key Laboratory on Rail Traffic Control and Safety,Beijing Jiaotong University

出　　处：《自动化学报》2010年第11期1620-1625,共6页Acta Automatica Sinica

基　　金：Supported by National Natural Science Foundation of China(60974052);Program for Changjiang Scholars and Innovative Research Team in University (IRT0949);Beijing Jiaotong University Research Program (RCS2008ZT002, 2009JBZ001, 2009RC008)

摘　　要：This paper extends and improves the existing result on fault-tolerant control (FTC) of dynamic systems with actuator failures and external disturbances in several aspects. More specifically,the proposed method does not involve solving Lyapunov equation that contains time-varying and unknown variables associated with actuator failures; one does not need to analytically estimate the bound on the actuator failure factors in designing and implementing the proposed control scheme; the developed FTC is able to attenuate both bounded and unbounded external disturbances under actuator failures. To some extent,the results presented here include the existing results as a special case and the resultant control algorithms are fault-independent in that there is no need for explicit fault information in terms of its magnitude (size),or time instance of the fault occurrence,thus,is more user-friendly for control design and more feasible for implementation as compared with the existing work.This paper extends and improves the existing result on fault-tolerant control （FTC） of dynamic systems with actuator failures and external disturbances in several aspects. More specifically,the proposed method does not involve solving Lyapunov equation that contains time-varying and unknown variables associated with actuator failures; one does not need to analytically estimate the bound on the actuator failure factors in designing and implementing the proposed control scheme; the developed FTC is able to attenuate both bounded and unbounded external disturbances under actuator failures. To some extent,the results presented here include the existing results as a special case and the resultant control algorithms are fault-independent in that there is no need for explicit fault information in terms of its magnitude （size）,or time instance of the fault occurrence,thus,is more user-friendly for control design and more feasible for implementation as compared with the existing work.

关 键 词：执行器 故障分析 外界干扰 动态系统 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]