Fatigue Life Assessment for Power Cables in Floating Offshore Wind Turbines

Mohsen Sobhaniasl, Francesco Petrini, Madjid Karimirad and Franco Bontempi
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Mohsen Sobhaniasl: Department of Structural an Geotechnical Engineering, Sapienza University of Rome, 00184 Rome, Italy
Francesco Petrini: Department of Structural an Geotechnical Engineering, Sapienza University of Rome, 00184 Rome, Italy
Madjid Karimirad: Civil Engineering, School of Natural and Built Environment, Queen’s University Belfast (QUB), Belfast BT7 1NN, UK
Franco Bontempi: Department of Structural an Geotechnical Engineering, Sapienza University of Rome, 00184 Rome, Italy

Energies, 2020, vol. 13, issue 12, 1-19

Abstract: In this paper, a procedure is proposed to determine the fatigue life of the electrical cable connected to a 5 MW floating offshore wind turbine, supported by a spar-buoy at a water depth of 320 m, by using a numerical approach that takes into account site-specific wave and wind characteristics. The effect of the intensity and the simultaneous actions of waves and wind are investigated and the outcomes for specific cable configurations are shown. Finally, the fatigue life of the cable is evaluated. All analyses have been carried out using the Ansys AQWA computational code, which is a commercial code for the numerical investigation of the dynamic response of floating and fixed marine structures under the combined action of wind, waves and current. Furthermore, this paper applies the FAST NREL numerical code for comparison with the ANSYS AQWA results.

Keywords: wind energy; floating offshore wind turbine; dynamic analysis; fatigue life assessment; flexible power cables (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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