2011 |
Boussaid, B.; Aubrun, C.; Abdelkrim, M. N. Two-level active fault tolerant control approach Conférence 2011, ISBN: 9781457704130, (cited By 13). Résumé | Liens | BibTeX | Étiquettes: Active fault tolerant control; Actuator dynamics; Actuator fault; Actuator saturations; LQ control; Performance degradation; Post-fault systems; Reconfigurable controllers; Reconfiguration actions; Reference Governor; Reference governors; Second level; System constraints, Actuators, Degradation; Governors; System stability; Wind power @conference{Boussaid2011, In this paper, a two-level reconfiguration action is used to design an Active Fault Tolerant Control (AFTC) system. The first level of the procedure is triggered when the impact of the fault on the system performance is limited. The reconfigurable controller is updated by the new post-fault system model. At the second level a dynamic reference modification based on Reference Governor (RG) is proposed. The idea consists of modifying the set-point or reference according to the allowable performance degradation and the system constraints which become more strict after fault occurrence in order to avoid any actuator saturation and ensure system stability. The effectiveness of the proposed solution is illustrated by a wind turbine example subjects to actuator faults and constrained on the actuator dynamic ranges. © 2011 IEEE. |
Publications
2011 |
Two-level active fault tolerant control approach Conférence 2011, ISBN: 9781457704130, (cited By 13). |