Mapeamento tecnológico da geração de energia eólica offshore
Wind energy has been in use since the end of the 19th century. In Denmark, for example, there was the great development of wind power from the manufacture of the first turbines by small agricultural equipment companies. Around 1980, countries such as Germany and the USA through incentive policies...
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Formato: | Dissertação |
Idioma: | pt_BR |
Publicado em: |
Brasil
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Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/27409 |
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Resumo: | Wind energy has been in use since the end of the 19th century. In Denmark, for example,
there was the great development of wind power from the manufacture of the first turbines
by small agricultural equipment companies. Around 1980, countries such as Germany
and the USA through incentive policies, triggered investments with diverse stimuli in
R&D. In addition to being a clean alternative, wind power is capable of producing
electricity at competitive prices relative to traditional sources of energy. The year 2016
was marked by the cost reduction of the offshore wind energy, in some circumstances,
this source becomes less expensive than onshore. Brazil does not yet have offshore wind
power plants and there are still few studies in this area. Thus, the objective of this study
was to map the existing technologies and technological trends of turbines for offshore
wind energy, exploring different rotor technologies and the structure of an offshore wind
turbine. The research was carried out in two stages: the theoretical basis, followed by a
patent analysis, enabling a technological mapping of the technologies. The patent base
Derwent Innovations Index (DII) was used and analyzed with a quantitative and
qualitative approach to patents from 1998 to 2018. It is concluded that offshore wind
turbines have almost twice the power than onshore turbines, the blades are reinforced
with glass fiber and the most commonly used foundation is the monopile. In the future,
turbines tend to increase further in power and size, it is expected that the materials used
in the blades will feature low density, high strength and can be recycled, and the towers
and foundations are in a hybrid trend of materials and model. In addition, there is a trend
in the development of technologies for turbines to be implemented in deeper water. |
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