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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...

Performance evaluation based fault tolerant control with actuator saturation avoidance

Boumedyen Boussaid;  Christophe Aubrun;  Mohamed Naceur Abdelkrim;  Mohamed Koni Ben Gayed — 2011

International Journal of Applied Mathematics and Computer Science

In this paper, a new approach regarding a reconfigured system is proposed to improve the performance of an active fault tolerant control system. The system performance is evaluated with an intelligent index of performance. The reconfiguration mechanism is based on a model predictive controller and reference trajectory management techniques. When an actuator fault occurs in the system, a new degraded reference trajectory is generated and the controller calculates new admissible controls. A constraint...

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