Integrated IPC-TMDI control for mitigating fatigue in floating offshore wind turbines under misaligned wind-wave loading

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Journal ArticleDate:
2025Author:
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Yida Pu, You Dong, Breiffni Fitzgerald, Integrated IPC-TMDI control for mitigating fatigue in floating offshore wind turbines under misaligned wind-wave loading, Ocean Engineering, 333, 121491, 2025Download Item:
Abstract:
As floating offshore wind turbines (FOWTs) increase in size, they become more efficient but also more susceptible
to vibrations and fatigue, shortening their lifespan and reducing power generation. Existing control strategies
often address these loads in isolation, limiting their effectiveness. This study proposes a cooperative control
approach combining individual pitch control (IPC) with a side-to-side tuned mass damper inerter (TMDI) to
mitigate tower fatigue under wind-wave misalignment. A multi-body dynamic model integrates a tower-top
TMDI and a reduced-order IPC with an LQ controller to evaluate FOWT responses. Simulations of various
wind-wave misalignment scenarios demonstrate that the cooperative approach significantly reduces fatigue
damage equivalent loads (DELs) and stresses (DESs), extending tower fatigue life, particularly in high
misalignment conditions.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
21/SPP/3756
Science Foundation Ireland (SFI)
20/FFP-P/8702
Author's Homepage:
http://people.tcd.ie/fitzgeb7Description:
PUBLISHED
Author: Fitzgerald, Breiffni
Sponsor:
Science Foundation Ireland (SFI)Science Foundation Ireland (SFI)
Type of material:
Journal ArticleSeries/Report no:
Ocean Engineering;333;
121491;
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Full text availableSubject (TCD):
Smart & Sustainable Planet , Civil Engineering , Renewable energy , Structural Engineering , Wind Energy and Wind Turbines , Wind, Wind Energy EngineeringDOI:
https://doi.org/10.1016/j.oceaneng.2025.121491Metadata
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