Wind Turbines Offshore Foundations and Connections to Grid
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Manzano Agugliaro, Francisco Rogelio; Sánchez Calero, Miguel; Alcayde García, Alfredo; San Antonio Gómez, Carlos; Perea Moreno, Alberto Jesús; [et al.]Date
2020-01-28Abstract
Most offshore wind farms built thus far are based on waters below 30 m deep, either using big diameter steel monopiles or a gravity base. Now, offshore windfarms are starting to be installed in deeper waters and the use of these structures—used for oil and gas like jackets and tripods—is becoming more competitive. Setting aside these calls for direct or fixed foundations, and thinking of water depths beyond 50 m, there is a completely new line of investigation focused on the usage of floating structures; TLP (tension leg platform), Spar (large deep craft cylindrical floating caisson), and semisubmersible are the most studied. We analyze these in detail at the end of this document. Nevertheless, it is foreseen that we must still wait sometime before these solutions, based on floating structures, can become truth from a commercial point of view, due to the higher cost, rather than direct or fixed foundations. In addition, it is more likely that some technical modifications in the wind tu...
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offshore foundations
connection to grid
modeling
control