Testing and control of a power take-off system for an oscillating-water-column wave energy converter

J. C.C. Henriques*, R. P.F. Gomes, L. M.C. Gato, A. F.O. Falcão, E. Robles, S. Ceballos

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

71 Citas (Scopus)

Resumen

The paper concerns the development of the PTO (power take-off) control of an OWC (oscillating-water-column) spar-buoy wave energy converter. The OWC spar-buoy is an axisymmetric device consisting of a submerged vertical tail tube open at both ends, rigidly fixed to a floater that moves essentially in heave. The oscillating motion of the internal free surface relative to the floater-tube set, produced by the incident waves, makes the air flow through a novel self-rectifying air turbine: the biradial turbine. To reduce the losses of the PTO system at partial load, an electrical generator with a rated power twice the maximum expected average power conversion of the buoy was adopted. The control of the turbine-generator set under highly energetic sea-state conditions was experimentally investigated by means of tests performed in a PTO test rig. In the reported tests, the hydrodynamics of the OWC spar-buoy and the aerodynamics of the air turbine were numerically simulated in real-time and coupled with the experimental model of the turbine/electrical generator set in ahardware-in-the-loop configuration. The experimental results allowed the dynamic behaviour of the PTO to be characterized and provided validation of the proposed control algorithms that ensure operation within safe limits.

Idioma originalInglés
Páginas (desde-hasta)714-724
Número de páginas11
PublicaciónRenewable Energy
Volumen85
DOI
EstadoPublicada - 1 ene 2016

Huella

Profundice en los temas de investigación de 'Testing and control of a power take-off system for an oscillating-water-column wave energy converter'. En conjunto forman una huella única.

Citar esto