On the design of observer for unknown inputs fuzzy models

被引:18
作者
Chadli, Mohammed [1 ]
Akhenak, Abdelkader [2 ]
Ragot, Jose [3 ]
Maquin, Dider [3 ]
机构
[1] Univ Picardie Jules Verne, Lab Modelisat Informat & Syst MIS, 7 Rue Moulin Neuf, F-80000 Amiens, France
[2] Inst Rech Syst Elect Embarques, F-76801 St Etienne Du Rouvray, France
[3] Inst Natl Polytech Lorraine, CRAN, UMR CNRS UHP INPL 7039, F-54516 Vandoeuvre Les Nancy, France
关键词
fuzzy model; unknown inputs; state estimation; Lyapunov method; Linear Matrix Inequalities; LMI;
D O I
10.1504/IJAAC.2008.020423
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 consider the design of an fuzzy observer for a non-linear system with unknown inputs described by a fuzzy model. The main objective is to estimate state variables of the fuzzy model subject to unknown inputs which influence states and outputs of the system simultaneously. Using the Lyapunov method and Linear Matrix Inequalities (LMI), sufficient conditions are proposed to design the proposed unknown input fuzzy observer. The pole placement in an LMI region is also considered. The validity of the proposed methodology is illustrated by an academic example.
引用
收藏
页码:113 / 125
页数:13
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