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Correction: Márquez-Domínguez, S.; Sørensen, J.D. Fatigue Reliability and Calibration of Fatigue Design Factors for Offshore Wind Turbines. Energies 2012, 5, 1816–1834
Open AccessArticle

Fault Diagnosis and Fault-Tolerant Control of Wind Turbines via a Discrete Time Controller with a Disturbance Compensator

Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d'Urgell, 187, Barcelona 08036, Spain
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Academic Editor: Frede Blaabjerg
Energies 2015, 8(5), 4300-4316; https://doi.org/10.3390/en8054300
Received: 13 March 2015 / Revised: 13 April 2015 / Accepted: 4 May 2015 / Published: 12 May 2015
(This article belongs to the Special Issue Wind Turbines)
This paper develops a fault diagnosis (FD) and fault-tolerant control (FTC) of pitch actuators in wind turbines. This is accomplished by combining a disturbance compensator with a controller, both of which are formulated in the discrete time domain. The disturbance compensator has a dual purpose: to estimate the actuator fault (which is used by the FD algorithm) and to design the discrete time controller to obtain an FTC. That is, the pitch actuator faults are estimated, and then, the pitch control laws are appropriately modified to achieve an FTC with a comparable behavior to the fault-free case. The performance of the FD and FTC schemes is tested in simulations with the aero-elastic code FAST. View Full-Text
Keywords: fault diagnosis; fault detection; fault isolation; fault-tolerant-control; discrete time; disturbance compensator; FAST fault diagnosis; fault detection; fault isolation; fault-tolerant-control; discrete time; disturbance compensator; FAST
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Vidal, Y.; Tutivén, C.; Rodellar, J.; Acho, L. Fault Diagnosis and Fault-Tolerant Control of Wind Turbines via a Discrete Time Controller with a Disturbance Compensator. Energies 2015, 8, 4300-4316.

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