JP2002130113A - Marine wind power generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide easy installation even in a complicated coastal landform or a place which is not a shelving bottom. SOLUTION: Wind power generators 2 are erected on each vertex position of frame structures 1 with triangular shapes as seen from above. Waveless floating bodies 3 floating the wind power generators 2 and the frame structures 1 on water are attached to the frame structures 1. Anchors 4 are installed mooring the frame structures 1 in a predetermined position on water. Current blades 5 capable of changing attack angles are interposed between the plural wind power generators 2. A cultivating device 6 is suspended and supported so as to elevate by the frame structures 1 and a paddle 7 for feeding a fresh stream to the cultivating device 6 is installed on the frame structure 1. By this, a wind power device can be easily installed even in a complicated coastal landform or a deep water area. Influence of an upwind wind power generator to a downwind wind power generator can be reduced. An optimal area can be easily provided to facilitate balancing on water. Fishing ground can be compensated and the cultivating device can serve as an anchor during heavy weather.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind turbine generator installed offshore.

[0002]

2. Description of the Related Art Wind power generation is being developed around the world in the wake of the oil crisis. In Japan and other countries, currently-built wind turbines are mainly installed on land along the Gulf. Have been.

[0003] By the way, the wind, which is the driving force of wind power generation, generally has a higher wind speed and a more stable wind direction on the sea than on the land with obstacles. It is desirable to install equipment.

[0004] In recent years, wind power generators have been installed in Europe using a shallow shore. In any case, the wind power generators are fixedly supported on the sea floor, like the wind power generators installed on land. Structure.

[0005]

However, in the case of Japan, it is difficult to adopt a structure fixedly supported on the shore because in Japan, unlike Europe, not only is the terrain complicated but also many places are not shallow. There is.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an offshore wind turbine that can be easily installed even on a complicated coastal terrain or in a place that is not shallow. It is an object.

[0007]

Means for Solving the Problems In order to achieve the above object, an offshore wind turbine generator according to the present invention comprises: a frame structure; a wind power generator erected on the frame structure;
It is provided with a floating body for floating the wind generator and the frame structure on the water surface, and an anchor for mooring the frame structure on which the wind power generator floating on the water surface is erected by the floating body at a predetermined position on the sea. . By doing so, it is possible to easily install the wind power generator even in a complicated coastal terrain or in a place that is not shallow.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An offshore wind turbine generator according to the present invention has a frame structure, a wind generator erected on the frame structure, and floats the wind generator and the frame structure on the water surface. It consists of a floating body and an anchor for mooring a frame structure on which a wind power generator floated on the water surface by the floating body at a predetermined position offshore.

The offshore wind power generator according to the present invention employs the above-described configuration, so that the wind power generator can be easily installed even on a complicated coastal terrain or in a deep water area having a water depth of 30 m or more. can do.

In the offshore wind power generator according to the present invention having the above-described configuration, when a plurality of wind power generators are installed,
By installing a rectifying vane whose angle of attack can be changed between these multiple wind turbines, the mutual influence of the wind turbines installed close to each other is reduced, that is, the wind turbines installed on the windward side are reduced. The effect of the wind turbine located on the windward side on the wind generator located on the leeward side can be avoided, for example, by adjusting the turbulence induced by the generator.

In the offshore wind turbine generator according to the present invention having the above-described structure, a triangular frame structure is employed as a frame structure, and a wind power generator is installed at each apex position of the frame structure. Can easily be connected to each other, so that the one having an optimum size according to the installation area can be easily obtained, and the balance when floating on the sea can be easily obtained.

[0012] In the offshore wind power generator according to the present invention having the above-described structure, when the aquaculture apparatus is suspended and supported by the framework structure, the fishing ground reduced by the installation of the wind power generator can be supplemented. become.

In the offshore wind power generator according to the present invention, in which the aquaculture device is suspended and supported, by providing the elevating device of the aquaculture device, the aquaculture device can be landed on the seabed during stormy weather to serve as an anchor. You will be able to fulfill it.

Further, in the offshore wind turbine generator according to the present invention provided with the aquaculture device, by installing the paddle on the framework, it is possible to easily supply a fresh water flow to the aquaculture device.

[0015]

FIG. 1 shows an offshore wind turbine generator according to the present invention.
3 will be described based on the embodiment shown in FIG. FIG. 1 is a plan view of an offshore wind turbine according to the present invention, FIG. 2 is a front view of an offshore wind turbine according to the present invention, and FIG. 3 is a plan view of the present invention shown in FIGS. Three such offshore wind turbines
It is the figure which looked at what was connected from the plane.

In FIGS. 1 and 2, reference numeral 1 denotes a frame structure which is formed, for example, in an equilateral triangular shape in a plan view, and in this embodiment, is a position at which each side of the frame structure 1 is equally divided into three. The auxiliary frames 1a are arranged at the farthest positions among the six positions and at four positions except for the adjacent positions on the same side of the framework structure 1 to maintain the strength. ing.

Numeral 2 denotes a wind power generator 2 erected on the framework structure 1. In this embodiment, each vertex position of the framework structure 1 is set to facilitate balance when floating on the ocean. The ones standing at three locations are shown. These wind power generators 2 include, for example, a support 2b erected on a workbench 2a formed at each apex position of the framework structure 1 and a generator (not shown) provided on the support 2b. A propeller-type windmill 2c radially protruding from the shaft is provided, and the windmill 2c rotates by receiving wind and drives the generator. The wind turbine 2c may be a Robinson type, a Savonius type or the like instead of the propeller type.

Reference numeral 3 denotes a waveless floating body for floating the frame structure 1 on which the wind power generator 2 is erected above the water surface position by a predetermined height. In this embodiment, each side of the frame structure 1 is provided. And a second floating body having a smaller buoyancy than the first floating body 3a is installed at a position where the auxiliary frames 1a intersect each other. Showing things.

Reference numeral 4 denotes an anchor for mooring the frame structure 1 on which the wind power generator 2 floating on the water surface by the waveless floating body 3 is erected at a predetermined position on the sea. Are attached to each vertex position.

Reference numerals 5 denote rectifying wings, for example, which are erected at three equal positions on each side of the frame structure 1 on which the first floating body 3a is installed.
A wind generator 2 located leeward is installed to reduce the effects of turbulence of the wind generator 2 located leeward;
It is designed so that the installation distance between the wind power generators 2 can be shortened to enable the size of a small-scale overall device.

Numeral 6 denotes an aquaculture device which is suspended and supported by the offshore wind power generation device according to the present invention having the above-described configuration so that it can be raised and lowered by, for example, a lifting device (not shown) at the center of gravity. If the wind turbines are suspended and supported, and the offshore wind turbine generator according to the present invention is located at a fishing ground, the fishing ground reduced by the installation of the wind turbine generator can be supplemented. Then, in stormy weather, the raising and lowering device is operated to cause the aquaculture device 6 to land on the seabed, thereby serving as an anchor.

Numerals 7 denote paddles provided at the center of each side of the frame structure 1 between the straightening vanes 5, respectively, for supplying a fresh water flow to the aquaculture apparatus 6. The power of each device described above is provided by using a part of the electric power obtained by the wind power generator 2.

According to the offshore wind turbine generator of the present invention having the above-described configuration, the completed offshore wind turbine generator need only be towed to sea at the installation position. Even in a deep water area where the water depth is 30 m or more, the wind power device can be easily installed.

FIG. 3 shows a structure in which three offshore wind turbines according to the present invention employing the above-described triangular frame structure 1 in a plan view are connected, and the triangular units are connected so that they can move freely. is there. As described above, when the frame structure 1 having a triangular shape in a plan view is employed, it can be easily connected.
It is possible to easily obtain an optimum size according to the installation area.

The offshore wind power generator according to the present invention is not limited to the above-described configuration. When the installation position is not a fishing ground, the aquaculture device 6 and the paddle 7 are unnecessary, and the aquaculture device 6 is attached. In such a case, the lifting device and the paddle 7 are not necessarily required.

When one wind power generator 2 is erected on the frame structure 1, it is needless to say that the straightening vanes 5 are unnecessary.

[0027]

As described above, according to the present invention,
By towing the completed offshore wind turbine to the installation position, the wind turbine can be easily installed even in a complicated coastal terrain or in a deep water area with a water depth of 30 m or more.

Further, in the offshore wind power generator according to the present invention, when a plurality of wind power generators are installed on one frame structure, a rectifying blade capable of changing the angle of attack is provided between the plurality of wind power generators. In this way, regardless of the wind direction, the effect of the wind generator located on the windward side on the wind generator located on the leeward side can be reduced, and the installation distance between the wind generators can be shortened. Can be small.

Further, in the offshore wind power generator according to the present invention, when a frame structure having a triangular shape in plan view is adopted, and wind power generators are installed at respective apexes of the frame structure, it is easy to use. Can be easily obtained in the optimum size according to the installation area, and it is easy to balance when floating on the sea.

In the offshore wind power generator according to the present invention, when the aquaculture apparatus is suspended and supported by the frame structure, the installation of the wind power generator can compensate for the reduced fishing ground. And, in the offshore wind power generator in which the aquaculture device is suspended and supported, by providing the elevating device of the aquaculture device, it is possible to make the aquaculture device land on the seabed and serve as an anchor in stormy weather. In addition, by providing a paddle on the framework, it is possible to easily supply a fresh water flow to the aquaculture apparatus.

[Brief description of the drawings]

FIG. 1 is a plan view of an offshore wind turbine according to the present invention.

FIG. 2 is a front view of the offshore wind turbine according to the present invention.

FIG. 3 is a plan view of three offshore wind turbines according to the present invention shown in FIGS. 1 and 2 connected to each other.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Framework structure 2 Wind generator 3 Floating body without wave 4 Anchor 5 Rectifier blade 6 Aquaculture device 7 Paddle

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) F03D 9/00 F03D 9/00 G

Claims (6)

[Claims] 1. A frame structure, a wind generator erected on the frame structure, a floating body floating the wind generator and the frame structure on the water surface, and a floating body floating on the water surface by the floating body. An offshore wind power generator, comprising: an anchor for mooring a frame structure on which a wind generator is erected at a predetermined position offshore. 2. The offshore wind power generator according to claim 1, wherein a plurality of wind power generators are installed, and a rectifier blade capable of changing an angle of attack is interposed between the plurality of wind power generators. 3. The offshore wind turbine generator according to claim 2, wherein the frame structure has a triangular shape in a plan view, and a wind power generator is installed at each apex position of the frame structure. 4. The offshore wind power generator according to claim 1, wherein the aquaculture apparatus is suspended from and supported by the framework structure. 5. The offshore wind power generator according to claim 4, further comprising an elevating device for the aquaculture device. 6. The offshore wind power generator according to claim 4, wherein a paddle for supplying a fresh water stream to the aquaculture apparatus is installed on the framework structure.