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Communication Dans Un Congrès Année : 1999

A parameter estimation method for the diagnosis of sensor or actuator abrupt faults

Résumé

This paper describes a method for additive abrupt fault detection and isolation. Parameter estimation is applied off line to obtain a discrete model. The contribution of sensor or actuator faults on the output error residual is analysed. Fault occurrence is detected using a Page-Hinkley algorithm. Then the parameters of several output error models of the residual are estimated. The analysis of these models allows fault isolation. As soon as a fault is diagnosed, the measurements provided to the fault detection and isolation algorithm are modified so that the detection of a consecutive fault is allowed even if the first fault is not corrected.
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Dates et versions

hal-00092880 , version 1 (12-09-2006)

Identifiants

  • HAL Id : hal-00092880 , version 1

Citer

Philippe Weber, Sylviane Gentil. A parameter estimation method for the diagnosis of sensor or actuator abrupt faults. European Control Conference, ECC99, 1999, Karlsruhe, Germany. pp.1-6. ⟨hal-00092880⟩
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