Design of proportional-integral observer for unknown input descriptor systems

In this paper, simple methods to design full and reduced-order Proportional Integral (PI) observer for Unknown Inputs (UI) descriptor systems are proposed. Sufficient conditions for the existence of the observer are given and proved. The observer is solvable by any pole placement algorithm, it gives...

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Bibliographic Details
Published in:IEEE transactions on automatic control 2002-12, Vol.47 (12), p.2057-2062
Main Authors: Koenig, D., Mammar, S.
Format: Article
Language:English
Subjects:
Applied sciences
Automatic Control Engineering
Computer Science
Computer science
control theory
systems
Control system synthesis
Control theory. Systems
Design methodology
Exact sciences and technology
Integral equations
Matrix decomposition
Modelling and identification
Observability
Observers
Robustness
Singular value decomposition
State estimation
State feedback
Sufficient conditions
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Summary:In this paper, simple methods to design full and reduced-order Proportional Integral (PI) observer for Unknown Inputs (UI) descriptor systems are proposed. Sufficient conditions for the existence of the observer are given and proved. The observer is solvable by any pole placement algorithm, it gives a posteriori robustness state and UI estimation face to time varying parameters and bounded nonlinear UI. An illustrative example is included.
ISSN:0018-9286
1558-2523
DOI:10.1109/TAC.2002.805675