A novel supervisory-based fault tolerant control: application to hydraulic process

Tushar Jain (1) , Joseph Julien Yamé (1) , Dominique Sauter (1)

1 CRAN - Centre de Recherche en Automatique de Nancy

In this paper, we demonstrate a performance-based supervisory approach to achieve fault tolerance that does not require any explicit fault-diagnosis module. Moreover, in our real-time approach the information about the plant is unavailable. The time-valued trajectories generated by the system determine the behavior of the plant-working mode. These trajectories are supposed to follow a certain desired behavior. Therefore, the trajectories when does not belong to that desired behavior assumes the occurrence of fault. A performance functional that formulate these trajectories ruled this desired behavior. Furthermore, we proposed a novel switching logic that effectively determines a suitable control law for the current plant-working mode. Since our approach comprises switching mechanism, we also addressed the stability issues for the overall FTC scheme. Lastly, we demonstrate the proposed approach by applying it to a Hydraulic Process.

Domaines: Automatique

Tushar Jain, Joseph Julien Yamé, Dominique Sauter. A novel supervisory-based fault tolerant control: application to hydraulic process. 2011. ⟨hal-00576324⟩