Effect of Flap Type Wave Energy Converters on the Response of a Semi-Submersible Wind Turbine in Operational Conditions

In the present paper the effect of flap type wave energy converters on the response of a floating semi-submersible wind turbine is investigated and reported. Two different layouts with regard to the number of rotating flaps that are utilized are considered and compared with the case of a pure floating semi-submersible wind turbine. Comparisons of response in terms of stability, motions and internal loads are made for selected environmental conditions. The combined operation of the rotating flaps results in an increase of the produced power without affecting significantly selected critical response quantities of the semi-submersible platform.Copyright © 2014 by ASME

[1]  Erin Elizabeth Bachynski,et al.  Global Analysis of Floating Wind Turbines: Code Development, Model Sensitivity And Benchmark Study , 2012 .

[2]  T. Moan,et al.  Optimal Geometries for Wave Absorbers Oscillating About a Fixed Axis , 2013, IEEE Journal of Oceanic Engineering.

[3]  Jason Jonkman,et al.  Dynamics of offshore floating wind turbines—analysis of three concepts , 2011 .

[4]  Aurélien Babarit,et al.  C-HyP: A Combined Wind and Wave Energy Platform With Balanced Contributions , 2013 .

[5]  J. Jonkman,et al.  Definition of a 5-MW Reference Wind Turbine for Offshore System Development , 2009 .

[6]  Torgeir Moan,et al.  Modeling and Analysis of a 5 MW Semi-Submersible Wind Turbine Combined With Three Flap-Type Wave Energy Converters , 2014 .

[7]  Jason Jonkman,et al.  Definition of the Semisubmersible Floating System for Phase II of OC4 , 2014 .

[8]  Dominique Roddier,et al.  Modeling of an Oscillating Water Column on the Floating Foundation WindFloat , 2011 .

[9]  Jason Jonkman,et al.  Definition of the Floating System for Phase IV of OC3 , 2010 .

[10]  Torgeir Moan,et al.  Point Absorber Design for a Combined Wind and Wave Energy Converter on a Tension-Leg Support Structure , 2013 .

[11]  Torgeir Moan,et al.  Modelling and Analysis of a Semi-Submersible Wind Turbine With a Central Tower With Emphasis on the Brace System , 2013 .

[12]  Torgeir Moan,et al.  Extreme responses of a combined spar-type floating wind turbine and floating wave energy converter (STC) system with survival modes , 2013 .

[13]  Emiliano Renzi,et al.  Relations for a periodic array of flap-type wave energy converters , 2012, 1209.6303.

[14]  T. D. Finnigan,et al.  Hydrodynamic characteristics of a cylindrical bottom-pivoted wave energy absorber , 2008 .

[15]  Patrick Moriarty,et al.  AeroDyn Theory Manual , 2005 .

[16]  Torgeir Moan,et al.  Dynamic response and power performance of a combined Spar-type floating wind turbine and coaxial floating wave energy converter , 2013 .

[17]  Johannes Falnes,et al.  A REVIEW OF WAVE-ENERGY EXTRACTION , 2007 .

[18]  António F.O. Falcão,et al.  Wave energy utilization: A review of the technologies , 2010 .

[19]  Torgeir Moan,et al.  Characteristics of a Pitching Wave Absorber with Rotatable flap , 2012 .

[20]  Torgeir Moan,et al.  Analysis of a Two-Body Floating Wave Energy Converter With Particular Focus on the Effects of Power Take Off and Mooring Systems on Energy Capture , 2011 .

[21]  Torgeir Moan,et al.  Joint Environmental Data at Five European Offshore Sites for Design of Combined Wind and Wave Energy Devices , 2013 .