Observer design and fault diagnosis for state-retarded dynamical systems

被引：64

作者：

Yang, HL

Saif, M ^{[1
]}

机构：

[1] Simon Fraser Univ, Sch Engn Sci, Vancouver, BC V5A 1S6, Canada

[2] Lucas Var Kelsey Hayes, Livonia, MI 48150 USA

来源：

AUTOMATICA | 1998年 / 34卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

fault detection; fault diagnosis; fault identification; observers; time delay estimation; Lyapunov stability; Razumikhin theorem;

D O I：

10.1016/S0005-1098(97)00175-1

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we propose a reduced-order observer, for state estimation in a class of state-delayed dynamical systems driven by known as well as unknown inputs. Conditions For existence of the proposed observer, plus the stability and convergence proof for the observer based on the Razumikhin theorem are given. Additionally, the proposed observer is utilized in an analytical-redundancy-based approach for sensor and actuator failure detection problem in the same class of time delay dynamical systems. Finally, the applicability and effectiveness of the proposed FDI scheme is illustrated through numerical examples. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：217 / 227

页数：11

共 11 条

[1] ENHANCEMENT OF ROBUSTNESS IN OBSERVER-BASED FAULT-DETECTION [J].