Floating type offshore wind power platform

By setting up a moon pool structure on the side columns of the floating offshore wind power platform, the additional load caused by waves and wind is offset by fluid oscillation, the problem of poor stability of the existing platform is solved, the power generation efficiency is improved and the cost of kilowatt-hour is reduced.

CN119637015APending Publication Date: 2025-03-18SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD +1
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Patent Information

Application Number
CN202411788865.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Due to the large waterline area of ​​the existing four-column floating offshore wind power platform, the existing four-column floating offshore wind power platform has a large additional load due to waves and sea breeze, the overall motion amplitude of the platform is large, and the stability is poor, resulting in a decrease in the power generation efficiency of the wind power generation group and an increase in the cost of kilowatt-hours.

Method used

A floating offshore wind power platform is designed, and the column assembly includes an intermediate column and a plurality of side columns. Each side column is equipped with a moon pool structure. The intermediate column is connected to the side columns through a first support component. The mooring component is connected to the column assembly at one end and the other end is connected to the seabed. The moon pool structure offsets additional loads caused by waves and wind through fluid oscillation, increasing the damping of the platform and reducing motion response.

Benefits of technology

By setting up a moon pool structure, the overall load of the wind power platform is reduced, the damping of waves and wind is increased, the motion response of the platform is reduced, the stability is improved, the wind turbine runs stably, the power generation efficiency is improved, and the cost of kilowatt-hour is reduced.

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Abstract

The invention relates to the technical field of offshore wind power, and discloses a floating type offshore wind power platform. The floating type offshore wind power platform comprises a stand column assembly, a first supporting assembly and a mooring assembly. The stand column assembly comprises a middle stand column and a plurality of side stand columns, the side stand columns are arranged at intervals in the circumferential direction of the middle stand column, and each side stand column is provided with a moon pool structure. The middle stand columns are connected with the side stand columns through first supporting assemblies. The other end of the mooring assembly is connected with the seabed. According to the offshore wind power platform, additional loads caused by part of waves and wind are offset by arranging the moon pool structure, the overall load of the wind power platform is reduced, damping of the whole platform to external excitation such as waves and wind is increased, the motion response of the platform is reduced, the motion amplitude of the wind power platform in the directions of heaving, rolling and pitching is effectively controlled, and the service life of the platform is prolonged. And the motion performance is optimized. The stability of the platform is improved, the wind generating set operates stably, the power generation efficiency is improved, and the kilowatt-hour cost is reduced.
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