System Identification and model comparison of a Tension Leg Platform for Floating Offshore Wind Turbines

Thomas Hansen, Maria A. B. Jørgensen, Van Roy Tran, Kasper Jessen, Mohsen N. Soltani

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

4 Citations (Scopus)
120 Downloads (Pure)

Abstract

This paper will focus on using system identification on experimental data for building a mathematical model for the platform of a floating offshore wind turbine and analyzing the behavior of the structure. The floating offshore wind turbine examined in this paper uses a scaled tension leg platform as its
foundation and the wind turbine is a 1:35 scaled model of the 5 MW NREL offshore wind turbine. The mathematical model of the platform will describe the
displacement of the TLP in surge when affected by an irregular wave series generated from a scaled Pierson-Moskowitz wave spectrum. To obtain such a mathematical model, an examination of the displacement of the platform due to the hydrodynamic loads will be conducted on the foundation of the floating offshore wind turbine. The height of the waves and the displacement of
the floating offshore wind turbines will be measured by resistive wave gauges and OptiTrack cameras, respectively, at the offshore laboratory at Aalborg University Esbjerg. System identification is used on the data obtained from the experiments, to build multiple mathematical models with different model structures, in order to find the most appropriate model structure. It is
concluded from the analysis of the different mathematical models, that the Autoregressive Moving Average and Extra input model structure is the most accurate model at describing the dynamics of the platform of a floating offshore wind turbine. The model is valid for a specific operating range of Pierson-Moskowitz waves generated with a wind speed corresponding to 2 meters per seconds.
Original languageEnglish
Title of host publication2019 24th International Conference on Methods and Models in Automation and Robotics, MMAR 2019
Number of pages6
PublisherIEEE Press
Publication dateAug 2019
Pages410-415
Article number8864710
ISBN (Electronic)9781728109336
DOIs
Publication statusPublished - Aug 2019
Event24th International Conference on Methods & Models in Automation & Robotics (MMAR) - Miedzyzdroje, Poland
Duration: 26 Aug 201929 Aug 2019

Conference

Conference24th International Conference on Methods & Models in Automation & Robotics (MMAR)
Country/TerritoryPoland
CityMiedzyzdroje
Period26/08/201929/08/2019

Keywords

  • System Identification
  • Floating wind turbine
  • TLP
  • Tension Leg Platform
  • Offshore Wind
  • Pierson-Moskowitz
  • Scaled-model
  • SI
  • FOWT
  • Floating offshore wind turbines
  • System identification

Fingerprint

Dive into the research topics of 'System Identification and model comparison of a Tension Leg Platform for Floating Offshore Wind Turbines'. Together they form a unique fingerprint.

Cite this