Fault detection for time-delay systems by data reconciliation

Frédéric Kratz (1) , Walter Nuninger (1) , José Ragot (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

In this paper, a method is proposed to detect and localize sensor or actuator failures in time-delay systems. This method is based on analytical redundancy and uses a simultaneous state and input estimation. Using the method on the concept of standardized least square residuals, residuals can be generated in a number of ways and a corresponding design of fault detection and isolation scheme can be presented. Finally, the applicability of the proposed scheme is illustrated on a numerical example.

Mots clés: failure detection; data reconciliation; time-delay systems

Domaines: Automatique

Frédéric Kratz, Walter Nuninger, José Ragot. Fault detection for time-delay systems by data reconciliation. American Control Conference, Jun 1998, Philadelphia, United Kingdom. pp.CDROM, ⟨10.1109/ACC.1998.703077⟩. ⟨hal-00966600⟩