Wind tunnel 2-DOF hybrid/HIL tests on the OC5 floating offshore wind turbine
This paper presents the numerical and experimental implementation of a 2 degrees-of-freedom (DoF) setup for simulating the surge and pitch motion of OC5 semi submersible floating offshore wind turbine, through the "hardware-in-the-loop" (HIL) approach during wind tunnel tests. This approac...
Published in: | Volume 10: Ocean Renewable Energy |
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Main Authors: | , , |
Other Authors: | |
Format: | Conference Object |
Language: | English |
Published: |
American Society of Mechanical Engineers (ASME)
2017
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Subjects: | |
Online Access: | http://hdl.handle.net/11311/1046648 https://doi.org/10.1115/OMAE2017-61763 http://www.asmedl.org/journals/doc/ASMEDL-home/proc/ |
Summary: | This paper presents the numerical and experimental implementation of a 2 degrees-of-freedom (DoF) setup for simulating the surge and pitch motion of OC5 semi submersible floating offshore wind turbine, through the "hardware-in-the-loop" (HIL) approach during wind tunnel tests. This approach is hybrid since a real-time combination of computations and measurements are carried out during the experiments. This allows to separate the model tests of floating wind turbines into wave/ocean basin and wind tunnel tests, as it is currently done within the H2020/LIFES50+ project respectively at Marintek (Norway) and Politecnico di Milano (Italy), with the possibility of exploiting the advantages of each facility and overcoming the scaling issues and conflicts (e.g. Froude-Reynolds) that are emphasized when it comes to testing both wind and wave in a single test facility. In this paper the modelling approach and experimental implementation are presented, with a special focus on signals and data handling in the real-time HIL control system aimed at minimizing the effect of model/full scale discrepancies. Results are shown for free decays, regular and irregular sea states, showing promising results for the next 6-DoF system being finalized. |
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