(Institución)
 
 

Docu-menta > Tecnología > Artículos de Tecnología >

Por favor, use este identificador para citar o enlazar este ítem: http://documenta.ciemat.es/handle/123456789/5161

Título : Quasi-passive reactance control for two-body axisymmetric heaving WECs
Autor : Alves, Marco
Sarmento, Antonio
Blanco, Marcos
Vicente, Miguel
Vieira, Mário
Lafoz, Marcos
Palabras clave : Wave energy
WEC
Point absorber
Quasi-passive reactance control
WEC resonance
Mass-transfer mechanism
Fecha de publicación : 27-ago-2025
Editorial : Elsevier
Citación : Alves, Marco, António Sarmento, Marcos Blanco, Miguel Vicente, Mário Vieira, and Marcos Lafoz. 2026. “Quasi-Passive Reactance Control for Two-Body Axisymmetric Heaving WECs.” Renewable Energy 256 (January): 124305. https://doi.org/10.1016/j.renene.2025.124305.
Citación : Renewable Energy;vol. 256
Resumen : Ocean wave energy has the potential to play a key role in a low-carbon future due to its vast untapped resources. However, Wave Energy Converters (WECs) remain at a pre-commercial stage and must improve competitiveness by enhancing reliability, lowering LCOE, and increasing energy generation. The latter can be achieved by shifting from damping controls to reactance controls, optimizing WEC-wave mechanical resonance to boost energy output. In this context, a novel quasi-passive reactance control concept is introduced, incorporating a physical mass transfer system rather than relying solely on control algorithms to supply reactive energy to the WEC. The paper presents the concept, a phenomenological discussion and the supporting mathematical theory applied to a spar-type axisymmetric two-body heaving point absorber that incorporates a mass transfer mechanism to control the reactance. Point absorbers, by their nature, usually have very narrow frequency responses and quite often their peak frequency response is much higher than the typical wave frequencies. The proposed quasi-passive reactance control significantly broadens the frequency response bandwidth to align it with typical ocean wave frequencies, enhancing energy extraction to optimal reactance levels and thereby increasing annual energy yield. The key finding of this analysis is that, when well controlled, the proposed mass transfer mechanism can increase the power capture bandwidth by more than three times compared to the baseline case without the mechanism
URI : http://documenta.ciemat.es/handle/123456789/5161
ISSN : 09601481
Aparece en las colecciones: Artículos de Tecnología

Ficheros en este ítem:

Fichero Descripción Tamaño Formato
2025_OpenAccess_Quasi-passive reactance control for two-body axisymmetric heaving WECs1-s2.0-S096014812501969X-main.pdf2.31 MBAdobe PDFVisualizar/Abrir
View Statistics

Los ítems de Docu-menta están protegidos por una Licencia Creative Commons, con derechos reservados.

 

Información y consultas: documenta@ciemat.es | Documento legal