Effects of Surge on Rotor Aerodynamics of Offshore Floating Wind Turbine

Article Preview

Abstract:

This paper, using the blade momentum theory combined with dynamic inflow correction and stall delay correction, analyses how periodic surge affect rotor aerodynamics of the NREL 5MW turbine operating at three different regions of its power curve. Results show that surge has the largest effects on rotor aerodynamics in region under rated wind speed while the smallest in region above that. Besides, oscillation amplitudes of rotor aerodynamic loads are in linear correlation with surge frequency and amplitude in most cases, except that rotor power and torque in region above rated wind speed is in linear correlation with the square of surge frequency. Results of this analysis would provide reference data for designs of floating wind turbine systems.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 1070-1072)

Pages:

177-182

Citation:

Online since:

December 2014

Export:

Price:

* - Corresponding Author

[1] Madjid Karimirad. (2013). Modeling aspects of a floating wind turbine for coupled wave-wind-induced dynamic analyses., Renewable Energy, 53 (2013) 299-305.

DOI: 10.1016/j.renene.2012.12.006

Google Scholar

[2] Madjid Karimirad and Torgeir Moan, F. ASCE. (2012). Wave- and wind-induced dynamic response of a spar-type offshore wind turbine., J. Waterway, Port, Coastal, and Ocean Eng., 2012. 138: 9-20.

DOI: 10.1061/(asce)ww.1943-5460.0000087

Google Scholar

[3] Zhenzhe Chen, Niles Jacob Tarp-Johansen, Jorgen Juncher Jensen. (2006). Mechanical characteristics of some deepwater floater designs for offshore wind turbines., Wind Engineering, (2006).

DOI: 10.1260/030952406779502678

Google Scholar

[4] Patrick J. Moriarty. (2005). AeroDyn Theory Manual., Technical Rep., NREL/EL-500-36881, National Renewable Energy Laboratory (NREL), Golden, Co.

DOI: 10.2172/15020336

Google Scholar

[5] Tony Burton, David Sharpe, Nick Jenkins, Ervin Bossanyi. (2005). Wind Energy Handbook. John Wiley&Sons Ltd, America.

Google Scholar

[6] Snel H, Schepers J. (1995). Joint investigation of dynamic inflow effects and implementation of an engineering method., Technical Rep., ECN-C-94-107, Energy Research Center of the Netherlands, Petten, (1995).

Google Scholar

[7] Schepers J G, Snel H. (1995). Dynamic inflow: Yawed conditions and partial span pitch control., Technical Rep., ECN-C-95-056, Netherlands, Petten, (1995).

Google Scholar

[8] Martin O.L. Hansen. (2008). Aerodynamics of wind turbines. Earthscan (Publisher), London, (2008).

Google Scholar

[9] Simon-Philippe Breton, Frank N. Cotton, Geri Moe. (2008). A study on rotational effects and different stall delay models using a prescribed wake vortex scheme and NREL phase VI experiment data., Wind Energy, 2008, 11(5).

DOI: 10.1002/we.269

Google Scholar

[10] Du Z, Selig M S. (2000). The effect of rotation on the boundary layer of a wind turbine blade., Renewable Energy, (2000).

DOI: 10.1016/s0960-1481(99)00109-3

Google Scholar

[11] J. Jonkman, S. Butterfield, W. Musical, G. Scott. (2009). Definition of a 5-MW reference wind turbine for offshore system development., Technical Rep., NREL/TP-500-38060, National Renewable Energy Laboratory, February (2009).

DOI: 10.2172/947422

Google Scholar