Gerardo V. Guerrero-Ramirez

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This paper deals with fault detection and isolation (FDI) in sensors applied to a concentric-pipe counter-flow heat exchanger. The proposed FDI is based on the analytical redundancy implementing nonlinear high-gain observers which are used to generate residuals when a sensor fault is presented (as software sensors). By evaluating the generated residual, it(More)
Recently the differential algebraic approach for fault diagnosis has been established. The main idea of this approach is to put the diagnosis problem solution in terms of the algebraic observability of the variables describing the faults behavior. Then, the diagnosis problem solution is interpreted as the ability to deduce a differential-algebraic relation(More)
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