A Robust Fault Detection Approach Based on Unknown Input Observer

被引：0
|
作者：
Shan Zhenghui [1 ]
Liu Guangbing [1 ]
Li Guohua [1 ]
机构：
[1] Inst Hitech, Xian 710025, Shannxi, Peoples R China
来源：
ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6 | 2009年
关键词：
fault detection; unknown input observer; robust; de-coupled; SYSTEMS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A robust fault detection approach based on unknown input observer and its application in an attitude control system are studied. First the necessary and sufficient existence conditions of UIO are presented and proved. Then the application steps of full-order and reduced-order unknown input observer are summarized. The approach is validated by an attitude control system and simulation proves that the fault residual are perfectly de-coupled by disturbances, and the fault can be detected effectively.
引用
收藏
页码：2690 / 2693
页数：4
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