文献类型：期刊文献

中文题名：非线性时滞不确定系统执行器鲁棒故障诊断

英文题名：Actuator Fault Diagnosis in Nonlinear-time-delay System with Uncertainties

作者：刘爱伦[1];陈永云[1];俞金寿[1]

机构：[1]华东理工大学自动化系,上海200237

年份：2004

卷号：30

期号：5

起止页码：576

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：教育部博士点基金资助(20030251003)

语种：中文

中文关键词：非线性时滞系统;鲁棒性;灵敏度;稳定性;故障诊断

外文关键词：nonlinear-time-delay system; robustness; sensitivity; staility; fault diagnosis

摘要：提出了一种含有不确定性环节的非线性时滞系统的执行器鲁棒故障诊断方法,通过应用观测器技术和自适应技术来确定估计系统输出与实际系统输出的差值,若大于或等于阈值,诊断发生了故障。同时详细地分析了该方法的鲁棒性、灵敏性和稳定性。最后通过仿真验证了它的有效性。
This paper proposes a robust fault diagnosis method of actuator in nonlinear-time-delay system with uncertainties. The nonlinearity is related with both inputs and outputs, the uncertainties include states and output. The observer techniques and adaptive techniques are used to obtain values of system output and estimated output. The fault occurs if the difference between them equals or exceeds the threshold. Robustness, sensitivity and stability are analyzed. At last, this method is validated through simulation.