This paper presents a scheme for accommodating faults in the rotor and generator speed sensors in a wind turbine. These measured values are important both for the wind turbine controller as well as the supervisory control of the wind turbine. The scheme is based on unknown input observers, which are also used to detect and isolate these faults. The scheme is tested on a known benchmark for FDI and FTC of wind turbines. Tests on this benchmark model show a clear potential of the proposed scheme.
Ifac Proceedings Volumes, 2012, p. 313-318
Fault accommodation; Reconfiguration strategy; Power plants and power systems; Applications and fault tolerant control; reconfigurable control
8th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes, 2012