A 1/64th scale prototype of multi-axis wave energy converter (WEC) has been tested in the wave tank and the overall concept has been verified. It is shown that when multiple directions of motion are involved, the multi-axis WEC proves to be able to supply more power generation than a single axis one. Results demonstrated that the optimal resonant frequency for maximum power output under different damping values does not vary with wave climate. It is also shown that large overload capability of the system is critical, and indicated that, electric power system is essential to reduce power fluctuations.
REFERENCES
1.
B.
Drew
and A. R.
Plummer
, Proc. Inst. Mech. Eng. Part A
223
, 887
(2009
).2.
J. P.
Kofoed
, P.
Frigaard
, E. F.
Madsen
, and H. C.
Sørensen
, Renewable Energy
31
, 181
(2006
).3.
H.
Polinder
, M. E. C.
Damen
, and F.
Gardner
, IEEE Trans. Energy Convers.
19
, 583
(2004
).4.
D.
Zhang
, W.
Li
, Y.
Lin
, and J.
Bao
, Renewable Sustainable Energy Rev.
16
(1
), 4522
(2012
).5.
J.
Falnes
, Mar. Struct.
20
, 185
(2007
).6.
A. F. de O.
Falcao
, Renewable Sustainable Energy Rev.
14
, 899
(2010
).7.
D.
Zhang
, W.
Li
, and Y.
Lin
, Renewable Energy
34
, 2089
(2009
).8.
A. P.
McCabe
, A.
Bradshaw
, J. A. C.
Meadowcroft
, and G.
Aggidis
, Renewable Energy
31
, 141
(2006
).9.
G. A.
Aggidis
, A. P.
McCabe
, and M. B.
Widden
, Renewable Energy
35
, 2632
(2010
).10.
R.
Waters
, M.
Stålberg
, O.
Danielsson
, O.
Svensson
, S.
Gustafsson
, E.
Strömstedt
, M.
Eriksson
, J.
Sundberg
, and M.
Leijon
, Appl. Phys. Lett.
90
, 034105
(2007
).11.
M.
Leijon
, O.
Danielsson
, M.
Eriksson
, K.
Thorburn
, H.
Bernhoff
, J.
Isberg
, J.
Sundberg
, I.
Ivanova
, E.
Sjöstedt
, O.
Ågren
, K.-E.
Karlsson
, and A.
Wolfbrandt
, Renewable Energy
31
, 1309
(2006
).12.
K.
Nilsson
, O.
Danielsson
, and M.
Leijon
, J. Appl. Phys.
99
, 034505
(2006
).13.
I. A.
Ivanova
, H.
Bernhoff
, O.
Ågren
, and M.
Leijon
, Ocean Eng.
32
, 1664
(2005
).14.
K.
Thorburn
, K.-E.
Karlsson
, A.
Wolfbrandt
, M.
Eriksson
, and M.
Leijon
, Appl. Energy
83
, 371
(2006
).15.
M. A.
Chowdhury
, N.
Hosseinzadeh
, and W. X.
Shen
, Renewable Energy
38
, 224
(2012
).16.
M.
Eriksson
, J.
Isberg
, and M.
Leijon
, Int. J. Eng. Sci.
43
, 1377
(2005
).17.
F.
Flocard
and T. D.
Finnigan
, Ocean Eng.
37
, 989
(2010
).18.
A. J.
Caska
and T. D.
Finnigan
, Ocean Eng.
35
, 6
(2008
).19.
A. F. de O.
Falcao
, Ocean Eng.
34
, 2021
(2007
).20.
A.
Babarit
, M.
Guglielmi
, and A. H.
Clément
, Ocean Eng.
36
, 1015
(2009
).21.
D.
Valerio
, P.
Beirao
, and J. D.
Costa
, Appl. Ocean. Res.
30
, 178
(2008
).22.
P.
Ricci
, J.
Lopez
, M.
Santos
, P.
Ruiz-Minguela
, J. L.
Villate
, F.
Salcedo
, and A. F. de O.
Falcao
, IET Renewable Power Gener.
5
(3
), 234
(2011
).23.
J.
Falnes
, Int. J. Offshore Polar Eng.
12
(2
), 147
(2002
).© 2013 AIP Publishing LLC.
2013
AIP Publishing LLC
You do not currently have access to this content.