JP-2026074491-A - Wind power generation equipment

Abstract

[Challenge] To suppress the tilting motion of the wind turbine caused by the effects of waves, thereby reducing the decrease in power generation efficiency. [Solution] The wind power generation equipment comprises a floating body and a wind power generation device having a wind turbine mounted on the floating body, the floating body comprising a first column that supports the wind turbine and has a first hollow section, a plurality of second columns that are arranged symmetrically with respect to an imaginary line extending horizontally through the first column when viewed from above and each having a second hollow section, a first connecting member that connects the first column and the plurality of second columns, and a projection that, when viewed from above, protrudes from the second column in a direction away from the first column in the direction in which the first connecting member extends. [Selection Diagram] Figure 1

Inventors

• 池末 俊一
• 加藤 基規
• 佐伯 秀真
• 石井 秀和
• 大城 貴昭
• 真鍋 宜行
• 廣田 一博

Assignees

• 三菱造船株式会社

Dates

Publication Date

20260507

Application Date

20241021

Claims (7)

1. Floating body and, A wind power generation device comprising a wind turbine mounted on the floating body, The floating body is Supporting the wind turbine, a first column having a first hollow section, When viewed from above, a plurality of second columns are provided symmetrically with respect to an imaginary line that passes through the first column and extends horizontally, each having a second hollow section. A plurality of first connecting members are located below the water surface and connect the first column and the second column, When viewed from above, the first connecting member has a projection that extends in the direction from the second column away from the first column, A wind power generation facility equipped with [specific features/equipment].
2. The first ballast provided in the first hollow section, A second ballast is provided in each of the second hollow sections, The wind power generation equipment according to claim 1, comprising:
3. The wind power generation equipment according to claim 1, wherein the first connecting member and the protruding portion each have a hollow portion.
4. The wind power generation equipment according to claim 3, wherein at least one of the first connecting member and the protruding portion is provided with other ballast.
5. The wind power generation equipment according to claim 1, further comprising struts located below the water surface, connecting the first connecting members, and having greater buoyancy than the first connecting members.
6. Floating body and, A wind power generation device comprising a wind turbine mounted on the floating body, The floating body is Supporting the wind turbine, a first column having a first hollow section, When viewed from above, a plurality of second columns are provided symmetrically with respect to an imaginary line that passes through the first column and extends horizontally, each having a second hollow section. A plurality of first connecting members are located below the water surface and connect the first column and the second column, A strut located below the water surface connects the first connecting members and has greater buoyancy than the first connecting members, A wind power generation facility equipped with [specific features/equipment].
7. The wind power generation equipment according to claim 5 or 6, wherein the strut comprises other ballast.

Description

This disclosure relates to wind power generation equipment. Patent Document 1 discloses a floating wind turbine comprising a floating body that generates buoyancy to float on the ocean surface, and a wind power generation device installed on the floating body. In this floating wind turbine, the floating body comprises a first column on which the wind power generation device is installed, two second columns, and lower hulls connecting the first column section and the two second column sections. Japanese Patent Publication No. 2024-65150 This is a side view of a wind power generation facility according to the first embodiment of this disclosure.This is a view from above of the floating structure of a wind power generation facility in the first embodiment of the present disclosure.This is a flowchart showing the procedure for the design method of a wind power generation facility according to the first embodiment of this disclosure.This figure shows the response coefficient of a wind turbine in regular waves, which is affected by the difference in the dimensional difference between the center of buoyancy (center of gravity) of the wind turbine and the center of the floating surface of the floating body.This is a view from above of the floating structure of a wind power generation facility in the second embodiment of the present disclosure. The wind power generation equipment and the design method for the wind power generation equipment according to the embodiments of this disclosure will be described below with reference to Figures 1 to 5. <First Embodiment> (Overall configuration of wind power generation equipment) Figure 1 is a side view of a wind power generation facility according to the first embodiment of this disclosure. As shown in Figure 1, the wind power generation facility 1 of this first embodiment comprises a floating body 2 that floats on the water surface F and a wind power generation device 3. The wind power generation device 3 is installed on the floating body 2. The wind power generation device 3 is installed on the first column 21, which will be described later, on the floating body 2. The wind power generation device 3 comprises at least a wind turbine 32 and a generator (not shown). The wind turbine 32 comprises a tower 33, a nacelle 34, and a rotor 35. The tower 33 is formed as a column extending upward from the first column 21 of the floating body 2. The nacelle 34 is provided at the upper end of the tower 33. The nacelle 34 is rotatably mounted on the tower 33 via bearings (not shown) around an axis C1 extending in the vertical direction. The rotor 35 has a hub 35a and a plurality of blades 35b. The hub 35a is mounted on the nacelle 34 so as to be rotatable around an axis C2 that intersects it in the vertical direction. Multiple blades 35b are provided on the hub 35a at circumferential intervals around the axis C2. Each blade 35b extends radially outward from the hub 35a around the axis C2. The rotor 35 rotates circumferentially around the axis C2 as multiple blades 35b receive wind. A generator (not shown) is connected to the hub 35a, for example, via a speed increaser (not shown). The generator and speed increaser are housed, for example, within a nacelle 34. The wind power generation device 3 generates electricity when the rotor 35 rotates in response to the wind, which drives the generator. Furthermore, the rotor 35 efficiently generates electricity by rotating the nacelle 34 around the axis C1 according to the wind direction. Figure 2 is a view from above of the floating structure of a wind power generation facility in the first embodiment of this disclosure. As shown in Figures 1 and 2, the floating body 2 comprises a first column 21, a plurality of second columns 22A, 22B, a connecting member 25, a protruding portion 26, a first ballast 27, and a second ballast 28. In the first embodiment, the floating body 2 comprises one first column 21 and two second columns 22A, 22B. As shown in Figure 1, the first column 21 has a cylindrical portion 21a, an upper plate portion 21t, and a lower plate portion 21d. In the first embodiment, the first column 21 is formed in a circular shape when viewed from above. The cylindrical portion 21a is formed in a cylindrical shape extending in the vertical direction. The upper plate portion 21t closes the opening at the upper end of the cylindrical portion 21a. The lower plate portion 21d closes the opening at the lower end of the cylindrical portion 21a. Such a first column 21 is hollow, and a first hollow portion 21s, filled with gas (air), is formed inside. The tower 33 of the wind turbine 32 is provided on the upper plate portion 21t of the first column 21. That is, the first column 21 supports the wind turbine 32. As shown in Figure 2, the two second columns 22A and 22B are arranged symmetrically with respect to a virtual line X that passes through the center 21c of the first column 21 and extends horizontally, when viewed from above. In the first e