Offshore Code Comparison Collaboration, Continuation within IEA Wind Task 30: Phase II Results Regarding a Floating Semisubmersible Wind System: Preprint

Amy Robertson, Jason Jonkman, Fabian Vorpahl, Wojciech Popko, Jacob Qvist, Lars Froyd, Xiaohong Chen, José Azcona, Emre zunoglu, Carlos Soares, Chenyu Luan, Huang utong, Fu Pengcheng, Anders de, Torben Larsen, James ichols, Ricard Buils, Liu Lei, Tor Nygaard, Dimitris anolasAndreas Heege, Sigrid atne, Harald Ormberg, Tiago uarte, Cyril Godreau, Hans Hansen, Anders Nielsen, Hans iber, Cédric unff, Raimund bele, Friedemann Beyer, Atsushi Yamaguchi, Kwang ung, Hyunkyoung Shin, Marco Alves, Wei hi, Hyunchul Park

Research output: Contribution to conferencePaper

Abstract

Offshore wind turbines are designed and analyzed using comprehensive simulation tools (or codes) that account for the coupled dynamics of the wind inflow, aerodynamics, elasticity, and controls of the turbine, along with the incident waves, sea current, hydrodynamics, and foundation dynamics of the support structure. This paper describes the latest findings of the code-to-code verificationactivities of the Offshore Code Comparison Collaboration, Continuation (OC4) project, which operates under the International Energy Agency (IEA) Wind Task 30. In the latest phase of the project, participants used an assortment of simulation codes to model the coupled dynamic response of a 5-MW wind turbine installed on a floating semisubmersible in 200 m of water. Code predictions were comparedfrom load-case simulations selected to test different model features. The comparisons have resulted in a greater understanding of offshore floating wind turbine dynamics and modeling techniques, and better knowledge of the validity of various approximations. The lessons learned from this exercise have improved the participants' codes, thus improving the standard of offshore wind turbine modeling
Original languageAmerican English
Number of pages17
StatePublished - 2014
Event33rd International Conference on Ocean, Offshore and Arctic Engineering - San Francisco, California
Duration: 8 Jun 201313 Jun 2013

Conference

Conference33rd International Conference on Ocean, Offshore and Arctic Engineering
CitySan Francisco, California
Period8/06/1313/06/13

NREL Publication Number

  • NREL/CP-5000-61154

Keywords

  • continuation
  • IEA
  • NREL
  • OC4
  • offshore code comparison collaboration
  • offshore wind turbines
  • semisubmersible

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