UJO design and Sensor Fault Diagnosis of LPV Systems with time delay Using Descriptor Approach

被引:0
|
作者
Bougatef, Zina [1 ]
Abdelkrim, Nouceyba [1 ]
Aitouche, Abdelouhab [2 ]
Abdelkrim, Mohamed Naceur [1 ]
机构
[1] Univ Gabes, Dept Elect Engn, Res Lab MACS 06 LR 11 12, Rue Omar Ibn El Khattab, Gabes 6029, Tunisia
[2] HEI Lille, Dept Elect Engn, Res CRISTAL Lab, F-59046 Lille, France
关键词
OBSERVER;
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
In this work, sensor fault diagnosis of linear parameter varying (LPV) systems with varying time-delay is considered. By using the descriptor approach which introduce the faults in the studied system having the property of auxiliary state, the estimation of sensor faults is achieved. For this purpose and in order to estimate both the system states and the faults an augmented system is created firstly and an unknown input observer (UIO) for delayed (LPV) systems is designed secondly. Then, we elaborate an algorithm to compute the observer gains. Sensor fault detection is based on the (UIO) approach for residual generation that is sensitive to faults. Finally, an (LPV) truck-trailer system with sensor faults is presented.
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页码:146 / 150
页数:5
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