Dynamic response of floating offshore wind turbine under different stages of typhoon passage

Xu, Hang; Wang, Lizhong; Zha, Xing; Rui, Shengjie; Shen, Kanmin; Guo, Zhen

doi:10.1016/j.apor.2024.104047

Applied Ocean Research

2024

DOI: 10.1016/j.apor.2024.104047

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Dynamic response of floating offshore wind turbine under different stages of typhoon passage

Hang Xu,

Lizhong Wang,

Xing Zha

et al.

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Cited by 3 publications

References 44 publications

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A fuzzy decision-making network model for offshore wind turbine selection based on simulated annealing algorithm

Xue,

Yang,

Song

et al. 2025

Ocean Engineering

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A fuzzy decision-making network model for offshore wind turbine selection based on simulated annealing algorithm

Xue,

Yang,

Song

et al. 2025

Ocean Engineering

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Analysis of mooring performance and layout parameters of multi-segment mooring system for a 15 MW floating wind turbine

Huang,

Xu,

Chen

et al. 2024

Front. Energy Res.

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IntroductionFloating wind power is the important path for the development of offshore wind energy, and the performance of the mooring system of floating wind turbines (FOWTs) significantly affects their economic viability, safety, and sustainability.MethodsThis paper systematically analyses the positioning performance, mooring line extreme loads, and fatigue response of a FOWT equipped with both single segment and multi-segment mooring systems, based on the IEA 15 MW large turbine and a floating platform. The hydrodynamic performance of the floating platform is calculated, and the platform’s motion-sensitive directions are analysed through Response Amplitude Operators (RAOs). The natural periods of the platform are validated by free decay tests. The six degrees of freedom (DOFs) motion response and the mooring line peak tensions are analysed under normal and extreme conditions.ResultsThe results show that both mooring systems provide good motion performance and stable tilt angles for the platform. Under ALS (single-line failure) condition, the multi-segment mooring system demonstrates a notable capacity to resist impact loads, with comparatively minor fluctuations in mooring line tension. In the multi-segment system, fatigue damage primarily occurs in the upper mooring chain, with damage approximately 4.5 times greater than that of the bottom chain over a 1-year period. The effects of mooring line spread angles and lengths on performance are also analysed. The results indicate that the mooring line spread angle has slight impact on platform motion response and mooring line tension, while mooring line length significantly affects the extreme tension of the lines.DiscussionThe findings of this study can provide some references in the design of mooring systems for future FOWTs.

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Motion Analysis of International Energy Agency Wind 15 MW Floating Offshore Wind Turbine under Extreme Conditions

Chang,

Zheng,

et al. 2024

JMSE

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In recent years, ultra-large-scale offshore wind turbines have attracted widespread attention. However, accurately evaluating the motion responses of offshore wind turbines under extreme conditions, especially for semisubmersible floating off-shore wind turbines, is often challenging. In order to assess the operational behavior of wind turbines under wind and wave loads, this paper adopted a numerical analysis method to solve the motion responses under extreme conditions. It specifically examines the motion responses of the IEA 15 MW wind turbine in terms of surge, heave, and pitch direction, focusing on environmental loads that occur once every 50 years. The results show that the wind turbine can still operate normally under the Ultimate condition. However, the average amplitude increased by 7% in the pitch direction and decreased by 4% in the heave direction compared to the rated condition. Under extreme conditions (occurring once every 50 years), with the wind turbine parked, the average amplitude in the surge direction reduced by 33%, while the average amplitude in the pitch direction reduced by 106%. Thus, it is essential to pitch the blades and brake the generator in extreme environmental conditions to ensure the safety of the wind turbine.

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Dynamic response of floating offshore wind turbine under different stages of typhoon passage

Cited by 3 publications

References 44 publications

A fuzzy decision-making network model for offshore wind turbine selection based on simulated annealing algorithm

A fuzzy decision-making network model for offshore wind turbine selection based on simulated annealing algorithm

Analysis of mooring performance and layout parameters of multi-segment mooring system for a 15 MW floating wind turbine

Motion Analysis of International Energy Agency Wind 15 MW Floating Offshore Wind Turbine under Extreme Conditions

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