New floating wind turbine foundation platform based on tuned liquid column oscillation damper

Abstract

The invention discloses a novel floating-type wind turbine foundation platform based on tuning liquid-column vibration dampers. In a ballast compartment, four side stand columns are arranged around acentral stand column. Each side stand column comprises a main stand column and a heaving stand column fixed to the bottom of the main stand column. The central stand column is internally hollow. The main stand columns and the heaving stand columns are internally hollow, and the main stand columns communicate with the heaving stand columns to form independent cylindrical cavities, and an annular partition plate is arranged in each independent cylindrical cavity and divides the independent cylindrical cavity into an inner chamber and an outer chamber. The two outer chambers in independent cylindrical cavities in the two side stand columns located on the same line in a direction parallel to the longitudinal-transverse vibration direction communicate with each other through a longitudinal-transverse horizontal pipeline to form one liquid-column vibration damper. By adoption of the novel floating-type wind turbine foundation platform based on the tuning liquid-column vibration dampers, thevibration response of the platform under a strong coupling sea condition can be effectively reduced, and accordingly, the stability of a whole semi-submersible floating-type fan system is improved.

Description

technical field [0001] The invention relates to an offshore floating wind turbine power generation infrastructure, in particular to a novel floating wind turbine foundation platform based on a tuned liquid column oscillation damper, which can be applied to a floating wind turbine in waters deeper than 60m. Background technique [0002] In recent years, countries have gradually realized the huge potential of offshore wind energy industry development. First, because offshore wind resources become more abundant with the increase of sea area depth, and compared with land wind energy, they have doubled; second, because offshore wind power The development of wind turbines is more environmentally friendly and cost-effective. It can reduce the land occupation area, produce no noise pollution and visual pollution, and obtain wind power more conveniently. Countries such as Denmark, Norway, the Netherlands and the United States have been at the forefront of the world in the development...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the background technology and the insufficient vibration resistance of the existing semi-submersible fan platform under the strong coupling of wind, wave and current, the present invention provides a new type of floating wind turbine based on a tuned liquid column oscillation damper. The wind turbine foundation platform can not only guarantee the characteristics of the traditional semi-submersible platform, but also effectively reduce the vibration response of the platform under strong coupling sea conditions, and more effectively avoid the resonance between the wind turbine and the foundation under strong coupling sea conditions. Thereby increasing the stability of the entire semi-submersible floating wind turbine system, which can be applied to floating wind turbines in waters deeper than 60m

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