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Reconfigurability analysis for reliable fault-tolerant control design

Ahmed Khelassi;  Didier Theilliol;  Philippe Weber — 2011

International Journal of Applied Mathematics and Computer Science

In this paper the integration of reliability evaluation in reconfigurability analysis of a fault-tolerant control system is considered. The aim of this work is to contribute to reliable fault-tolerant control design. The admissibility of control reconfigurability is analyzed with respect to reliability requirements. This analysis shows the relationship between reliability and control reconfigurability defined generally through Gramian controllability. An admissible solution for reconfigurability...

Reconfigurable control design with integration of a reference governor and reliability indicators

Philippe Weber;  Boumedyen Boussaid;  Ahmed Khelassi;  Christophe Aubrun — 2012

International Journal of Applied Mathematics and Computer Science

A new approach to manage actuator redundancy in the presence of faults is proposed based on reliability indicators and a reference governor. The aim is to preserve the health of the actuators and the availability of the system both in the nominal behavior and in the presence of actuator faults. The use of reference governor control allocation is a solution to distribute the control efforts among a redundant set of actuators. In a degraded situation, a reconfigured control allocation strategy is...

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