信息与控制2017，Vol.46Issue(2)：144-152,9.DOI:10.13976/j.cnki.xk.2017.0144
基于事件触发机制的NCS主被动混合鲁棒H∞容错控制
Hybrid Active-passive Robust Fault-Tolerant Control for a Networked Control System Based on an Event-triggered Scheme
摘要
Abstract
We address a hybrid active-passive robust fault-tolerant control design method for a networked control system (NCS) based on a discrete event-triggered communication scheme (DETCS).Aimed at an uncertain linear NCS with time-varying delays influenced by an external disturbance with limited energy,we propose robust passive and normal controllers based on the DETCS.The normal controllers ensure that the system has good dynamic performance while the system operates normally.When faults occur by switching to the passive robust fault-tolerant controller through a switching function,the system not only keeps steady but also has certain disturbance performance restrictions.In addition,it can also slow the decreasing speed of system performance during early periods of unknown faults.We also use the robust fault diagnosis observer to detect faults in real time and find that adaptive compensation control can eliminate the effect of any unknown fault.Finally,a simulation example is used to justify the feasibility of the proposed approach.关键词
网络化控制系统/离散事件触发机制/混合鲁棒容错H∞控制系统/扰动抑制Key words
networked control system/discrete event-triggered communication scheme/hybrid robust H∞ fault-tolerant control system/rejection performance of disturbances分类
化学化工引用本文复制引用
王君,李淑真,李炜..基于事件触发机制的NCS主被动混合鲁棒H∞容错控制[J].信息与控制,2017,46(2):144-152,9.基金项目
国家自然基金资助项目(61463030) （61463030）
