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Inerter-based Passive Structural Control for Barge Floating Offshore Wind Turbines by Villoslada, D. (author);Santos, M. (author);Tomas-Rodriguez, M. (author) is a Engineering article available to read on EtoBox.

What is Inerter-based Passive Structural Control for Barge Floating Offshore Wind Turbines about?

Floating offshore wind turbines (FOWT) stand as a promising concept to expand the wind energy generation into the more productive deep-water areas, where conventional bottom-fixed turbines are infeasible. Barge-type floating wind turbines experience an inverted pendulum effect which produces a coupling with the wind turbine response, resulting in large structural loads. In this paper, the authors investigate passive structural control to mitigate the tower fatigue, in the form of a tuned mass damper (TMD) installed in the nacelle. The study focuses on evaluating the benefits of adding a parallel-connected inerter device to the TMD. Based on a reduced dynamics model for the barge-type offshore wind turbine identified using the FAST-SC synthetic reference data, an optimization of the TMD and the inerter parameters is carried out. To that end, genetic algorithms were used taking the tower fatigue as a fitness function, derived from the tower top displacement. The results confirm that the inerter has limitations when installed in a traditional TMD, but show significant benefits when the TMD stroke is constrained by stops. It is found that the improved performance including the inerter

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Author

Villoslada, D. (author);Santos, M. (author);Tomas-Rodriguez, M. (author)

Publisher

Elsevier BV

Published

2020

Language

EN

Field

Engineering (Physical Sciences)