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Development of performance specifications for hybrid modeling of floating wind turbines in wave basin tests

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Abstract

Hybrid modeling—combining physical testing and numerical simulation in real time—opens new opportunities in floating wind turbine research. Wave basin testing is an important validation step for floating support structure design, but the conventional approaches that use physical wind above the basin are limited by scaling problems in the aerodynamics. Applying wind turbine loads with an actuation system that is controlled by a simulation responding to the basin test in real time offers a way to avoid scaling problems and reduce cost barriers for floating wind turbine design validation in realistic coupled wind and wave conditions. This paper demonstrates the development of performance specifications for a system that couples a wave basin experiment with a wind turbine simulation. Two different points for the hybrid coupling are considered: the tower-base interface and the aero-rotor interface (the boundary between aerodynamics and the rotor structure). Analyzing simulations of three floating wind turbine designs across seven load cases reveals the motion and force requirements of the coupling system. By simulating errors in the hybrid coupling system, the sensitivity of the floating wind turbine response to coupling quality can be quantified. The sensitivity results can then be used to determine tolerances for motion tracking errors, force actuation errors, bandwidth limitations, and latency in the hybrid coupling system. These tolerances can guide the design of hybrid coupling systems to achieve desired levels of accuracy. An example demonstrates how the developed methods can be used to generate performance specifications for a system at 1:50 scale. Results show that sensitivities vary significantly between support structure designs and that coupling at the aero-rotor interface has less stringent requirements than those for coupling at the tower base. The methods and results presented here can inform design of future hybrid coupling systems and enhance understanding of how test results are affected by hybrid coupling quality.

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References

  • American Bureau of Shipping (2013) ABS guide for building and classifying floating offshore wind turbine installations. Tech. rep, American Bureau of Shipping, Houston, Texas

  • Azcona J, Bouchotrouch F, González M, Garciandía J, Munduate X, Kelberlau F, Nygaard TA (2014) Aerodynamic thrust modelling in wave tank tests of offshore floating wind turbines using a ducted fan. J Phys Conf Ser. doi:10.1088/1742-6596/524/1/012089

    Google Scholar 

  • Bachynski EE, Chabaud V, Sauder T (2015) Real-time hybrid model testing of floating wind turbines: sensitivity to limited actuation. In: 12th Deep Sea Offshore Wind R&D Conference, Trondheim, Norway

  • Bachynski E, Thys M, Sauder T, Chabaud V, Saether L (2016) Real-time hybrid model testing of a braceless semi-submersible wind turbine: Part II: experimental results. In: Proceedings of the 35th international conference on Ocean, Offshore and Arctic Engineering, Busan, South Korea

  • Bayati I, Belloli M, Ferrari D, Fossati F, Giberti H (2014) Design of a 6-DoF robotic platform for wind tunnel tests of floating wind turbines. Energy Proc 53:313–323. doi:10.1016/j.egypro.2014.07.240

    Article  Google Scholar 

  • Chabaud V, Steen S, Skjetne R (2013) Real time hybrid testing of marine structures: Challenges and strategies. In: Proceedings of the ASME 2013 32nd international conference on ocean, offshore, and arctic engineering, Nantes, France

  • Coulling AJ, Goupee AJ, Robertson AN, Jonkman JM, Dagher HJ (2013) Validation of a FAST semi-submersible floating wind turbine numerical model with DeepCwind test data. J Renew Sustain Energy 5(2):023116. doi:10.1063/1.4796197

    Article  Google Scholar 

  • de Ridder E, Otto W, Zondervan G, Huijs F, Vaz G (2014) Development of a scaled down wind turbine for model testing floating wind turbines. In: Proceedings of the 33rd international conference on ocean, offshore and arctic engineering, San Francisco, California

  • Fowler M, Kimball RW, Thomas DA, Goupee AJ (2013) Design and testing of scale model wind turbines for use in wind/wave basin model tests of floating offshore wind turbines. In: Proceedings of the 32nd international conference on ocean, offshore and arctic engineering, Nantes, France

  • Goupee AJ, Koo B, Kimball RW, Lambrakos KF, Dagher HJ (2014) Experimental comparison of three floating wind turbine concepts. J Offshore Mech Arctic Eng 136(2):020906

    Article  Google Scholar 

  • Gueydon S, Duarte T, Jonkman J (2014) Comparison of second-order loads on a semisubmersible floating wind turbine. In: Proceedings of the 33rd international conference on ocean, offshore and arctic engineering, ASME, San Francisco, California, USA. doi:10.1115/OMAE2014-23398

  • Gueydon S, Wuillaume P, Jonkman J, Robertson A, Platt A (2015) Comparison of second-order loads on a tension-leg platform for wind turbines. In: Proceedings of the twenty-fifth international offshore and polar engineering conference, Kona, Hawaii

  • Hall M (2017) MoorDyn user’s guide. University of Prince Edward Island, Charlottetown, Canada

  • Hall M, Goupee A (2015) Validation of a lumped-mass mooring line model with DeepCwind semisubmersible model test data. Ocean Eng 104:590–603. doi:10.1016/j.oceaneng.2015.05.035

    Article  Google Scholar 

  • Hall M, Moreno J, Thiagarajan K (2014) Performance specifications for real-time hybrid testing of 1:50 scale floating wind turbine models. In: Proceedings of the ASME 2014 33rd international conference on ocean, offshore and arctic engineering, San Francisco, California

  • International Electrotechnical Commission (2005) Wind turbines - part 1: design requirements. International Standard IEC 61400-1:2005(E), International Electrotechnical Commission

  • Jonkman JM, Buhl Jr ML (2005) FAST user’s guide. Tech. Rep. NREL/EL-500-29798, National Renewable Energy Laboratory, Golden, Colorado

  • Jonkman JM, Butterfield S, Musial W, Scott G (2009) Definition of a 5-MW reference wind turbine for offshore system development. Tech. Rep. 38060, National Renewable Energy Laboratory, Golden, Colorado

  • Jonkman JM (2010) Definition of the floating system for phase IV of OC3. Technical Report 47535, National Renewable Energy Laboratory, Golden, Colorado

  • Jonkman BJ, Kilcher L (2012) TurbSim user’s guide: Version 1.06.00. Tech. rep., National Renewable Energy Laboratory, Golden, Colorado

  • Koo B, Goupee AJ, Kimball RW, Lambrakos KF (2014) Model tests for a floating wind turbine on three different floaters. J Offshore Mech Arctic Eng 136(2):020907

    Article  Google Scholar 

  • Martin H (2011) Development of a scale model wind turbine for testing of offshore floating wind turbine systems. MS thesis, University of Maine, Orono, Maine

  • Martin HR, Viselli AM, Kimball RW, Goupee AJ (2012) Methodology for Wind/Wave basin testing of floating offshore wind turbines. In: Proceedings of the 31st international conference on ocean, offshore and arctic engineering, Rio de Janeiro, Brazil

  • Moon III WL, Nordstrom CJ (2010) Tension leg platform turbine: a unique integration of mature technologies. In: Proceedings of the 16th offshore symposium, Houston, Texas Section of the Society of Naval Architects and Marine Engineers

  • Müller K, Sandner F, Bredmose H, Azcona J, Manjock A, Pereira R (2014) Improved tank test procedures for scaled floating offshore wind turbines. In: Proceedings of international wind engineering conference—support structures & electrical systems, Hannover, Germany

  • Prowell I, Robertson A, Jonkman J, Stewart GM, Goupee AJ (2013) Numerical prediction of experimentally observed behavior of a scale model of an offshore wind turbine supported by a Tension-Leg platform. In: Offshore technology conference, Houston, Texas

  • Roald L, Jonkman J, Robertson A, Chokani N (2013) The effect of second-order hydrodynamics on floating offshore wind turbines. Energy Proc 35:253–264. doi:10.1016/j.egypro.2013.07.178

    Article  Google Scholar 

  • Robertson A, Jonkman J, Musial W, Vorpahl F, Popko W (2013) Offshore code comparison collaboration, continuation: phase II results of a floating semisubmersible wind system. In: Proceedings of EWEA offshore 2013, Frankfurt, Germany

  • Sauder T, Chabaud V, Thys M, Bachynski E, Saether L (2016) Real-time hybrid model testing of a braceless semi-submersible wind turbine: Part I: The hybrid approach. In: Proceedings of the 35th international conference on ocean, offshore and arctic engineering, Busan, South Korea

  • Stewart G, Lackner M, Robertson A, Jonkman J, Goupee AJ (2012) Calibration and validation of a FAST floating wind turbine model of the DeepCwind scaled tension-leg platform. In: Proceedings of the 22nd international offshore and polar engineering conference, Rhodes, Greece

  • Tidwell T, Gao X, Huang H, Lu C, Dyke S, Gill C (2009) Towards configurable real-time hybrid structural testing: a cyber-physical system approach. In: IEEE international symposium on object/component/service-oriented real-time distributed computing. Tokyo, Japan, pp 37–44

  • Viselli AM, Forristall GZ, Pearce BR, Dagher HJ (2015) Estimation of extreme wave and wind design parameters for offshore wind turbines in the gulf of maine using a POT method. Ocean Eng 104:649–658. doi:10.1016/j.oceaneng.2015.04.086

    Article  Google Scholar 

  • Viselli AM, Goupee AJ, Dagher HJ (2015b) Model test of a 1:8 scale floating wind turbine offshore in the Gulf of Maine. J Offshore Mech Arctic Eng 137:041901

    Article  Google Scholar 

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Acknowledgements

Thanks are due to Sebastien Gueydon and Line Roald for providing the second-order wave excitation input files, and Tiago Duarte for the previous assistance with the second-order wave excitation algorithms. Scholarship support from the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged.

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Hall, M., Goupee, A. & Jonkman, J. Development of performance specifications for hybrid modeling of floating wind turbines in wave basin tests. J. Ocean Eng. Mar. Energy 4, 1–23 (2018). https://doi.org/10.1007/s40722-017-0089-3

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  • DOI: https://doi.org/10.1007/s40722-017-0089-3

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