### Resumé

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.

Originalsprog | Engelsk |
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Titel | Proceedings of 24th International Conference on Methods & Models in Automation & Robotics (MMAR) |

Forlag | IEEE Press |

Publikationsdato | aug. 2019 |

DOI | |

Status | Udgivet - aug. 2019 |

Begivenhed | 24th International Conference on Methods & Models in Automation & Robotics (MMAR) - Miedzyzdroje, Polen Varighed: 26 aug. 2019 → 29 aug. 2019 |

### Konference

Konference | 24th International Conference on Methods & Models in Automation & Robotics (MMAR) |
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Land | Polen |

By | Miedzyzdroje |

Periode | 26/08/2019 → 29/08/2019 |

### Fingerprint

### Citer dette

*Proceedings of 24th International Conference on Methods & Models in Automation & Robotics (MMAR)*IEEE Press. https://doi.org/10.1109/MMAR.2019.8864710

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*Proceedings of 24th International Conference on Methods & Models in Automation & Robotics (MMAR).*IEEE Press, 24th International Conference on Methods & Models in Automation & Robotics (MMAR), Miedzyzdroje, Polen, 26/08/2019. https://doi.org/10.1109/MMAR.2019.8864710

**System Identification and model comparison of a Tension Leg Platform for Floating Offshore Wind Turbines.** / Hansen, Thomas; Jørgensen, Maria A. B.; Tran, Van Roy; Jessen, Kasper; N. Soltani, Mohsen.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - System Identification and model comparison of a Tension Leg Platform for Floating Offshore Wind Turbines

AU - Hansen, Thomas

AU - Jørgensen, Maria A. B.

AU - Tran, Van Roy

AU - Jessen, Kasper

AU - N. Soltani, Mohsen

PY - 2019/8

Y1 - 2019/8

N2 - 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 itsfoundation 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 thedisplacement 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 ofthe 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 isconcluded 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.

AB - 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 itsfoundation 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 thedisplacement 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 ofthe 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 isconcluded 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.

KW - System Identification

KW - Floating wind turbine

KW - TLP

KW - Tension Leg Platform

KW - Offshore Wind

U2 - 10.1109/MMAR.2019.8864710

DO - 10.1109/MMAR.2019.8864710

M3 - Article in proceeding

BT - Proceedings of 24th International Conference on Methods & Models in Automation & Robotics (MMAR)

PB - IEEE Press

ER -