New Results in Disturbance Decoupled Fault Reconstruction in Linear Uncertain Systems Using Two Sliding Mode Observers in Cascade

被引：6

作者：

Ng, Kok Yew ^{[1
]}

Tan, Chee Pin ^{[1
]}

Man, Zhihong ^{[2
]}

Akmeliawati, Rini ^{[3
]}

机构：

[1] Monash Univ, Sch Engn, Jalan Lagoon Selatan 46150, Malaysia

[2] Swinburne Univ Technol, Hawthorn, Vic 3122, Australia

[3] Int Islamic Univ, Kuala Lumpur 53100, Malaysia

来源：

INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS | 2010年 / 8卷 / 03期

关键词：

Disturbance decoupling; fault reconstruction; robustness; sliding mode observer; ACTUATOR;

D O I：

10.1007/s12555-010-0303-8

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using two sliding mode observers in cascade. Measurable signals from the first observer are found to be the output of a fictitious system that is driven by the fault and disturbances. Then the signals are fed into a second observer which will reconstruct the fault. Sufficient conditions which guarantee DDFR are investigated and presented in terms of the original system matrices, and they are found to be less conservative than if only one single observer is used; therefore DDFR can be achieved for a wider class of systems using two sliding mode observers. A simulation example validates the claims made in this paper.

引用

页码：506 / 518

页数：13

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