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

Yolanda Vidal, Christian Tutivén, José Rodellar and Leonardo Acho
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Yolanda Vidal: Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d'Urgell, 187, Barcelona 08036, Spain
Christian Tutivén: Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d'Urgell, 187, Barcelona 08036, Spain
José Rodellar: Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d'Urgell, 187, Barcelona 08036, Spain
Leonardo Acho: Control Dynamics and Applications Research Group (CoDAlab), Barcelona College of Industrial Engineering, Polytechnic University of Catalonia, Comte d'Urgell, 187, Barcelona 08036, Spain

Energies, 2015, vol. 8, issue 5, 1-17

Abstract: 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.

Keywords: fault diagnosis; fault detection; fault isolation; fault-tolerant-control; discrete time; disturbance compensator; FAST (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (13)

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