Wave groupiness and spectral bandwidth as relevant parameters for the performance assessment of wave energy converters

Type Article
Date 2011-01
Language English
Author(s) Saulnier Jean-Baptiste1, Clement Alain1, Falcao Antonio F. De O.2, Pontes Teresa3, Prevosto MarcORCID4, Ricci Pierpaolo5
Affiliation(s) 1 : Ecole Cent Nantes, Lab Mecan Fluides, F-44321 Nantes, France.
2 : Inst Super Tecn, IDMEC, P-1049001 Lisbon, Portugal.
3 : Lab Nacl Energia & Geol, P-1649038 Lisbon, Portugal.
4 : IFREMER, Ctr Brest, DCB ERT HO, F-29280 Plouzane, France.
5 : Sede ROBOTIKER TECNALIA, TECNALIA ENERGIA, E-48170 Zamudio, Vizcaya, Spain.
Source Ocean Engineering (0029-8018) (Pergamon-elsevier Science Ltd), 2011-01 , Vol. 38 , N. 1 , P. 130-147
DOI 10.1016/j.oceaneng.2010.10.002
WOS© Times Cited 38
Keyword(s) Wave groupiness, Spectral bandwidth, Sea states, Wave climate, Wave energy, Wave energy converters
Abstract To date the estimation of long-term wave energy production at a given deployment site has commonly been limited to a consideration of the significant wave height H, and mean energy period T. This paper addresses the sensitivity of power production from wave energy converters to the wave groupiness and spectral bandwidth of sea states. Linear and non-linear systems are implemented to simulate the response of converters equipped with realistic power take-off devices in real sea states. It is shown in particular that, when the converters are not much sensitive to wave directionality, the bandwidth characteristic is appropriate to complete the set of overall wave parameters describing the sea state for the purpose of estimating wave energy production. (C) 2010 Elsevier Ltd. All rights reserved.
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