传感器饱和约束下区间时滞系统L_(1)故障检测  

L_(1) Fault Detection for Interval Delay Systems Subject to Sensor Saturation

作　　者：李艳辉[1] 何祖源 LI Yan-hui;HE Zu-yuan(School of Electrical Engineering and Information,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学电气信息工程学院,黑龙江大庆163318

出　　处：《控制工程》2021年第5期918-923,共6页Control Engineering of China

基　　金：国家自然科学基金资助项目(61673102);黑龙江省自然科学基金资助项目(F201403)。

摘　　要：准确地检测出故障信号对保证系统的稳定性与安全性至关重要。针对外部干扰信号为持续峰值有界的概率区间时滞系统,研究具有传感器饱和约束的L_(1)故障检测问题。通过构造时滞相关的Lyapunov-Krasovskii函数和利用积分不等式方法建立使系统均方渐近稳定且具有L1噪声抑制水平的性能准则。利用线性矩阵不等式设计系统的低保守性故障检测滤波器,数值仿真表明所提方法能够准确快速地检测到故障信号。It is critical to detect fault signals accurately to ensure the stability and safety of systems.This paper investigates the L_(1) fault detection problem subject to sensor saturation for probability interval delay systems with continuous peak bounded external disturbances.By constructing the delay-dependent Lyapunov-Krasovskii function and using the integral inequality method,the performance criterion which makes the system mean-square asymptotically stable and has L_(1) noise suppression level is established.By using the linear matrix inequality,the fault detection filter with less conservativeness is designed.The numerical simulation shows that the proposed method can detect fault signals accurately and quickly.

关 键 词：故障检测 L1性能 概率区间时滞 传感器饱和 线性矩阵不等式 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]