文献类型：期刊文献

中文题名：非线性时滞不确定系统传感器鲁棒故障诊断

英文题名：Robust Fault Diagnosis of Sensor in Nonlinear-Time-Delay Uncertain System

作者：陈永云[1];刘爱伦[1];俞金寿[1]

机构：[1]华东理工大学信息与工程学院,上海市200237

年份：2003

卷号：16

期号：2

起止页码：210

中文期刊名：传感技术学报

外文期刊名：Chinese Journal of Sensors and Actuators

收录：CSTPCD;;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：非线性时滞系统;不确定性;传感器;鲁棒性;故障诊断;灵敏度;稳定性

外文关键词：nonlinear and time-delay system; robustness; sensitivity; stability, fault diagnosis

摘要：提出了一种带有不确定性环节非线性时滞系统的传感器鲁棒故障诊断方案 ,非线性与系统输入和状态有关 ,不确定性包括系统状态和输出环节 ;通过设计观测器对系统状态和输出进行估计 ,得到鲁棒阈值产生方法 ;构建自适应跟踪器 ,若系统实际和估计输出偏差等于或大于阈值 ,开始跟踪故障 ;同时对该方案鲁棒性、灵敏度和稳定性进行详细分析 ;最后通过仿真实验验证了有效性。
The paper proposes a robust-fault-diagnosis method of sensor in nonlinear-time-delay system with uncertainties, nonlinear is related with inputs and states, uncertainties include state and output. System states and outputs are estimated by technology of designing observer, and method of producing robust threshold is educed. Adaptive tracker is designed and track fault if difference between system output and estimated output equals or surpass threshold. Paper also analyzes robustness, sensitivity and stability. At last, simulation also proves this method is feasible.