南京理工大学学报（自然科学版）2018，Vol.42Issue(3)：292-299,8.DOI:10.14177/j.cnki.32-1397n.2018.42.03.006
带丢包的网络化控制系统的随机故障检测
Random fault detection for networked control systems with packet losses
摘要
Abstract
Fault detection( FD) is researched for a networked control system with randomly occurring faults,random packet losses and signal quantization to improve the performance and stability. A mathematical model is established for the networked control system with randomly occurring faults, and a random variable satisfying Bernoulli distribution is introduced to describe the probability of fault occurrence. The original FD filter design problem is turned into an H∞filtering design problem using state enlargement with the FD filter as the residual generator. A parameter expression of the FD filter is derived by Lyapunov stability theory and the linear matrix inequality( LMI) method,and the residual signal is obtained to judge the occurrence of faults. The effectiveness of the proposed FD method is verified by simulation.关键词
网络化控制系统/随机故障/随机丢包/信号量化/故障检测滤波器/线性矩阵不等式Key words
networked control systems/random faults/random packet losses/signal quantization/fault detection filter/linear matrix inequality分类
信息技术与安全科学引用本文复制引用
高敏,姜顺,潘丰..带丢包的网络化控制系统的随机故障检测[J].南京理工大学学报（自然科学版）,2018,42(3):292-299,8.基金项目
国家自然科学基金(61403168) （61403168）
