The objective of this paper is to describe the modelling and some of the offshore test results of the full-scale model of Archimedes wave swing (AWS) at Portugal in 2004. The AWS is a system that converts ocean wave energy into electric energy. A pilot plant of this system has been built. The paper starts with the derivation of a model for the floater motion. Next, the generator system is described and modelled. The generator system consists of a permanent-magnet linear synchronous generator with a current source inverter. Subsequently, test results are presented to validate the models for the floater motion and the generator. Finally, some conclusions are drawn.
ClémentA.McCullenP.FalcãoA.FlorentineA.GardnerF.HammarlundK.LemonisG.LewisT.NielsenK.PetronciniS.PontesM.-T.SchildP.SjöströmB.-O.SprensenH.C.ThorpeT.Wave energy in Europe: Current status and perspectives. Renew. Sustain. Energy Rev., 2002, 6, 405–431.
3.
ThorpeT. W.The wave energy programme in the UK and the European wave energy network. In Proceedings of Fourth Wave Energy Conference, Aalborg, 2000, 19–27.
NarayananS. S. Y.MurthyB. K.RaoG. S.Dynamic analysis of a grid-connected induction generator driven by a wave-energy turbine through hunting networks. IEEE Trans. Energy Convers., 1999, 14, 115–121.
6.
FolleyM.CurranR.BoakeC.WhittackerT.Performance investigations of the LIMPET counter-rotating Wells turbine. In Proceedings of Marine Renewable Energy Conference, Newcastle, September 2002.
7.
PizerD. J.RetzlerC. H.YemmR. W.The OPD Pelamis: experimental and numerical results from the hydrodynamic work program. In Proceedings of Fourth European Wave Energy Conference, Aalborg, December 2000, 227–233.
8.
MeyerN. I.NielsenK.The Danish wave energy programme second year status. In Proceedings of Fourth Wave Energy Conference, Aalborg, 2000, 10–18.
9.
MuellerM. A.Electrical generators for direct drive wave energy converters. IEE Proc. Gener. Transm. Distrib., 2002, 149, 446–456.
10.
MuellerM. A.BakerN. J.SpoonerE.Electrical aspects of direct drive wave energy converters. In Proceedings of Fourth European Wave Energy Conference, Aalborg, December 2000, 235–242.
11.
MuellerM. A.BakerN. J.Direct drive electrical power take-off for offshore marine energy converters. Proc. IMechE, Part A: J. Power and Energy, 2005, 219, 223–234.
12.
LeljonM.BernhoffH.AgrenO.IsbergJ.SundbergJ.BergM.KarlssonK. E.WolfbrandtA.Multiphysics simulation of wave energy to electric energy conversion by permament magnet linear generator. IEEE Trans. Energy convers., 2005, 20, 219–224.
13.
ThorburnK.BernhoffH.LeijonM.Wave energy transmission system concepts for linear generator arrays. Ocean Eng., 2004, 31, 1339–1349.
14.
SarmentoA. J. N. A.LuísA. M.LopesD. B. S.Frequency-domain analysis of the AWS device. European Wave Energy Conference, Patras, 1998.
15.
RademakersL. W. M. M.Van SchieR. G.SchuitemaR.VriesemaB.GardnerF.Physical model testing for characterising the AWS. European Wave Energy Conference, Patras, 1998, 192–199.
16.
PolinderH.GardnerF.VriesemaB.Linear PM generator for wave energy conversion in the AWS. In Proceedings of Eighth International Conference on Electrical machines, Helsinki, August 2000, vol. 1, 309–313.
17.
PolinderH.DamenM. E. C.GardnerF.Modelling and test results of the AWS linear PM generator system. In Proceedings of International Conference on Electric machines, Bruges, August 2002, paper 357.
18.
PolinderH.DamenM. E. C.GardnerF.Linear PM generator system for wave energy conversion in the AWS. IEEE Trans. Energy Convers., 2004, 19, 583–589.
19.
PolinderH.MecrowB. C.JackA. G.DickinsonP.MuellerM. A.Linear generators for direct drive wave energy conversion. IEEE Trans. Energy Convers., 2005, 20, 260–267.
20.
PolinderH.DamenM. E. C.GardnerF.Design, modelling and test results of the AWS PM linear generator. Eur. Trans. Electr. Power, 2005, 15, 245–256.
21.
de Sousa PradoM. G.NeumannF.DamenM. E. C.GardnerF.AWS results of pilot plant testing 2004. In Proceedings of Sixth European Wave and Tidal Energy Conference, Glasgow, 29 August-2 September 2005, 401–407.
22.
FaltinsenO. M.Sea loads on ships and offshore structures, 1990 (Cambridge University Press).
23.
RichterR.Elektrische maschinen, erster band, 3rd edition, 1967 (Birkhäuser, Basel).
24.
PolinderH.DamenM. E. C.GardnerF.de Sousa PradoM. G.Archimedes wave swing linear permanent magnet generator system performance. In Proceedings of Sixth European Wave and Tidal Energy Conference, Glasgow, 29 August-2 September 2005, 383–388.
