Fault Tolerant Control Method Based on Cost and Reliability Analysis
| Authors: | Guenab Fateh, Centre de Recherche en Automatique de Nancy (CRAN), France
Theilliol Didier, Centre de Recherche en Automatique de Nancy (CRAN), France
Weber Philippe, Centre de Recherche en Automatique de Nancy (CRAN), France
Ponsart Jean-Christophe, Centre de Recherche en Automatique de Nancy (CRAN), France
Sauter Dominique, Centre de Recherche en Automatique de Nancy (CRAN), France |
|---|
| Topic: | 6.4 Safeprocess |
|---|
| Session: | Advanced Solutions in Diagnosis and Fault Tolerant Control (IFATIS/MAGIC) |
|---|
| Keywords: | Fault Tolerant Control, System Reliability, Cost |
|---|
Abstract
The aim of Fault Tolerant Control (FTC) is to preserve the ability of the system to reach performances as close as possible to those which were initially assigned to it.The main goal of this paper consists in the development of a FTC strategy, based on both reliability and life cost of components.Once a fault has been detected and isolated and when it is not possible to reach the nominal performances of the system, the reconfiguration task needs to find all possible structures of system that preserve prespecified performances, calculate the system reliabilities and costs for all structures and finally search the optimal structure that has a highest reliability and/or a lowest cost. The proposed approach is illustrated through simulations considering a heating system benchmark used in the Intelligent Fault Tolerant Control in Integrated Systems European project (IFATIS EU-IST-2001-32122)
