Turkish Journal of Electrical Engineering and Computer Sciences
Abstract
In this paper, a method of generating robust residuals of a linear system, subject to unknown inputs, is proposed. The impact of disturbances and uncertainty may create difficulties at the decision stage of diagnosis (false alarm); this has resulted in the use of a robust observer for the unknown inputs to ensure the robustness of the system based on the unknown input observer with an optimal decoupling approach, which has a sensitivity that is minimal to unknown inputs and maximal to faults. A generation of robust residuals is then transformed into a problem of robustness/sensitivity constraints (H$_{\infty }$, H and then solved via a linear matrix inequality formulation by the solver CVX. An application for the method performance is also given.
DOI
10.3906/elk-1406-1
Keywords
Unknown input observer, residual generation, robustness, linear matrix inequality formulation
First Page
95
Last Page
107
Recommended Citation
TAHRAOUI, S, MEGHABBAR, A, & BOUBEKEUR, D (2017). Unknown input observer based on LMI for robust generation residuals. Turkish Journal of Electrical Engineering and Computer Sciences 25 (1): 95-107. https://doi.org/10.3906/elk-1406-1
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Computer Engineering Commons, Computer Sciences Commons, Electrical and Computer Engineering Commons
