KR-20260064421-A - OFFSHORE FLOATER FOR WIND POWER GENERATION

KR20260064421AKR 20260064421 AKR20260064421 AKR 20260064421AKR-20260064421-A

Abstract

An offshore wind power generation floating structure is disclosed. The offshore wind power generation floating structure of the present invention supports a wind turbine and comprises a plurality of floating modules individually manufactured using concrete as the main material, wherein a plurality of floating modules are combined to form a floating body, and the floating modules comprise: an outer column disposed on one side; a center column segment disposed on the other side and configured to form a center column when a plurality of floating modules are combined; and a pontoon connecting the plurality of outer columns and the center column segment.

Inventors

김용수

Assignees

삼성중공업 주식회사

Dates

Publication Date: 20260507
Application Date: 20241217
Priority Date: 20241031

Claims (7)

As a support for wind turbines, It includes multiple floating modules manufactured individually using concrete as the main material, The above plurality of floating modules are combined to form a floating body, and The above floating module is, An outer column positioned on one side; A center column segment (Segment) configured to form a center column positioned at the center when the plurality of floating modules are combined, positioned on the other side; and An offshore wind power generation floating structure comprising a pontoon connecting the plurality of outer columns and the center column segment.
In paragraph 1, The above plurality is 3, and The center column segments of the three above-mentioned floating modules include center column segment unit sidewalls, and The above-mentioned floating body is, A keystone connecting the center column segments of the three above-mentioned floating modules from the bottom; and An offshore wind power generation floating structure comprising an upper column manufactured separately from the above floating module and coupled to the upper part of the above center column.
In paragraph 2, It further includes a steel frame made of steel and coupled to the above-mentioned floating body, for distributing the load of the wind turbine, and The above steel frame is, A steel frame body positioned between the tower of the wind turbine and the upper column; and An offshore wind power generation floating body comprising a plurality of leg portions, each having one end connected to the steel frame body and the other end connected to the floating module, and arranged to be inclined downward from the steel frame body.
In paragraph 3, The above steel frame has a tripod shape that can be stacked on top of each other, and An offshore wind power generation floating body further comprising a vertical post-tensioning section that post-tensiones the center column and upper column in a vertical direction.
In paragraph 4, An offshore wind power generation floating body further comprising a horizontal post-tensioning section that post-tensiones the remaining two center column segments in a horizontal direction to one of the center column segments.
In paragraph 4, Shear keys are formed protruding from the upper surface of the center column segment at predetermined intervals along the longitudinal direction, and An offshore wind power generation floating body having a shear key groove formed on the lower surface of the upper column corresponding to the shear key.
In paragraph 1, The above plurality is 3, and One of the three center column segments of the above-mentioned floating module includes a center column segment bottom wall and a center column segment unit side wall, and The center column segment of the other one of the three floating modules includes a center column segment unit sidewall and a cover wall, and The center column segment of the remaining one of the three floating modules includes a center column segment support wall and a center column segment unit side wall, and The above floating body is an offshore wind power generation floating body that further includes an upper column manufactured separately from the above floating module and coupled to the upper part of the center column.

Description

Offshore Wind Power Generation Floating Structure The present invention relates to a floating structure for offshore wind power generation, and more specifically, to a floating structure for offshore wind power generation configured to individually manufacture and provide floating modules made of concrete and to perform a final assembly of the individually manufactured floating modules. An offshore wind power float is a structure floating on the sea that supports a wind turbine (WT). Therefore, the wind turbine tower is fixed to the offshore wind power float. The movement of this offshore wind power float is controlled by a mooring system. An offshore wind power floating structure can be composed of a combination of multiple columns and connecting bodies that link the columns. Each column is a buoyancy body having an internal cavity. A wind turbine tower can be fixed to any one of the multiple columns. Meanwhile, as offshore wind power floating structures become larger, the need for transport vessels to move them leads to increased transportation costs and supply schedules. This forces production bases for offshore wind power floating structures to be limited to locations adjacent to offshore wind project areas, acting as an obstacle to entering overseas markets for the expansion of related businesses. Conventional offshore wind turbines are mostly made of steel, but there is a significant problem with transportation costs when manufacturing steel floats in the manufacturer's region and transporting them overseas. Therefore, considering these issues, a plan to manufacture offshore wind power floating structures using concrete can be considered, as concrete can be readily supplied from overseas. However, due to the characteristics of concrete, the entire shape of the offshore wind power float must be manufactured in the yard. As a result, each offshore wind power float continuously occupies space corresponding to the footprint of the final product from the initial stage of manufacturing to completion, which creates a problem where a large-scale yard is required for mass production. FIG. 1 is a schematic partially exploded perspective view of an offshore wind power generation floating body according to one embodiment of the present invention. FIG. 2 is a perspective view illustrating the combined state of the wind power generation floating body of FIG. 1. Figure 3 is a drawing illustrating a floating module applied to Figure 1. Figure 4 is a drawing for explaining the vertical post-tensioning section and the horizontal post-tensioning section of the offshore wind power floating body of Figure 1. Figure 5 is a cross-sectional view along line V-V of Figure 4. FIG. 6 is a schematic partially exploded perspective view of an offshore wind power generation floating body in another embodiment of the present invention. In order to fully understand the present invention, the operational advantages of the present invention, and the objectives achieved by the implementation of the present invention, reference must be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described therein. The present invention will be described in detail below by explaining preferred embodiments of the invention with reference to the attached drawings. Identical reference numerals in each drawing indicate identical components. FIG. 1 is a schematic partially exploded perspective view of an offshore wind power generation floating body according to one embodiment of the present invention, FIG. 2 is a perspective view showing the combined state of the wind power generation floating body of FIG. 1, and FIG. 3 is a drawing showing a floating body module applied to FIG. 1. The offshore wind power generation floating body (10) according to the present embodiment supports a wind turbine (not shown) and replaces the existing steel structure offshore wind power generation floating body, but can reduce the total manufacturing yard area compared to the conventional offshore wind power generation floating body made of concrete, thereby compensating for the disadvantages of the concrete structure offshore wind power generation floating body. In addition, the offshore wind power generation floating body (10) according to the present embodiment is an offshore wind power generation floating body (10) that combines a steel frame (Steel frame, 200) made of steel based on an offshore wind power generation floating body of a concrete structure. As illustrated in FIGS. 1 to 3, an offshore wind power generation floating body (10) according to one embodiment of the present invention comprises a floating body (100) having a plurality of floating body modules (110) made of concrete, and a steel frame (200) made of steel and coupled to the floating body (100). The floating body (100) is formed by combining a plurality of floating modules (110). Here, the plurality of floating modules (110) are manufactured