文献类型：期刊文献

中文题名：非线性系统执行器鲁棒故障诊断

英文题名：Robust Fault Diagnosis of Sensors in Nonlinear System

作者：陈永云[1];刘爱伦[1]

机构：[1]华东理工大学信息与工程学院,上海200237

年份：2003

卷号：19

期号：6

起止页码：7

中文期刊名：电子机械工程

外文期刊名：Electro-Mechanical Engineering

语种：中文

中文关键词：非线性系统;执行器;观测器;故障诊断;鲁棒性

外文关键词：Fault diagnosis; Actuator; Nonlinear system; Observer

摘要：针对满足Lipschitz条件的非线性系统,提出了一种鲁棒的控制器时变故障的诊断方案。方案通过采用观测器技术跟踪系统的输出,从而得到残差,根据所得到的残差是否已超过了设定的域值,再通过自适应跟踪器,对故障进行跟踪,从而完成对控制器故障的诊断。同时还对所提出的故障诊断结构的鲁棒性、灵敏度和稳定性作了分析。最后,通过一个简单的仿真例子进一步验证了提出方案的可行性。
This paper proposes a scheme of robust fault diagnosis for controllers in a nonlinear system which satisfies the condition of Lipstchiz.This method uses observer technology to track system output,gets residual and estimates fault by using adaptive tracker if the residual surpasses the threshold.Through these technologies,fault diagnosis is performed. This paper also analyzes properties of the fault diagnosis architecture,such as robustness,sensitivity and stability. Finally, a simple simulation shows this method of fault diagnosis is feasible.