DISEÑO DE UN AEROGENERADOR FLOTANTE CON ESTRUCTURA ARTICULADA DE HORMIGÓN

Abstract

Offshore wind energy began its development in early 2000, in coastal countries of the North Sea, having a marked success due to its environmental advantages as well as the plenty and steady wind resource that it provides. Current foundation systems, mono-pile and jacket, are suitable in shallow waters, under 60 m depth. For deeper sea locations, floating structures can be a possible solution. The objective of this work is to design a high-efficiency wind turbine supported by a floating-platform, what can be moored in deep-water, and assembled by a simple process. Post-tensioned concrete has been considered in the design due to its strength and durability, likewise an articulated union nacelle-tower, in order to reduce the oscillation produced by waves and wind. Moreover, a single mooring system allows the structure (platform & turbine) to be orientated in the wind provenance direction. The structure is proposed to be dry-assembled, to reduce manufacturing costs and improve manufacturing performance. To check the design, simulations of structure have been run for extreme wind and wave values, and their outputs have been the starting point to the tower dynamic structural calculation.