TWI677624B - Offshore wind power generation apparatus and offshore wind power generation system - Google Patents

Abstract

The invention relates to an offshore wind power generation device, which comprises a wind turbine, a plurality of floating platforms and a plurality of connecting members. A plurality of floating platforms are suitable for carrying the fan. Each floating platform includes a body and a base connected to the bottom of the body. The base includes a counterweight structure. The plurality of connecting members are respectively connected to the plurality of floating platforms.

Description

Offshore wind power generation device and offshore wind power generation system

The invention relates to a power generating device, and more particularly to an offshore wind power generating device.

Due to the safety concerns of nuclear power generation, and the disadvantage of traditional thermal power generation generating air hazards, it is imperative to develop a clean and safe renewable energy power generation system. Renewable energy includes solar power, wind power, and ocean current power. Among them, since the wind source is the most abundant in the sea, wind power is suitable for regions with long coastlines, which can reduce the cost of obtaining wind sources.

In brief, a wind power generation device generally includes a wind turbine (wind turbine for short), which mainly generates electricity by rotating blades through air flow (ie, wind). The rotor is one of the most important systems for the conversion and utilization of wind energy by wind turbines, and its blades are locked on the hub to form an impeller together. The blades are rotated around the shaft by aerodynamic effects (including lift and resistance) of the wind, and the kinetic energy of the wind is taken to rotate the rotor in the hub, and the electromagnetic conversion between the rotor and the stator in the hub is converted into useful electrical energy and stored. .

According to the classification of installation sites, it can be divided into onshore and offshore wind power installations. Offshore wind power installations can also be simply divided into two types: fixed and floating. Of which, fixed sea The upper wind power generation device is fixed to the sea floor by a foundation pile, such as a continental shed with a shallow water depth. Because the water depth in the open sea is too deep, the cost of fixing the foundation piles to the ocean floor may be too high, so the fixed offshore wind power generation device is less suitable for installation in areas far from the coast. In comparison, the floating offshore wind power generation device is not limited by the depth of the water, but can be suitable for being located far from the coast.

The conventional floating offshore wind power generation device is mainly made of steel structure, its manufacturing cost is relatively high, and when the wind is too strong, it may cause the conventional floating offshore wind power generation device to tilt, or even topple.

The reason is that, in order to solve the above problem, an embodiment of the present invention provides an offshore wind power generation device, which includes a wind turbine, a plurality of floating platforms, and a plurality of connecting members. A plurality of floating platforms are suitable for carrying the fan. Each floating platform includes a body and a base connected to the bottom of the body. The base includes a counterweight structure. The plurality of connecting members are respectively connected to the plurality of floating platforms.

Another embodiment of the present invention provides an offshore wind power generation system including a plurality of offshore wind power generation devices connected to each other to integrate the generated power and enhance the stability of individual power generation devices floating on the sea surface.

1‧‧‧Wind power plant

2‧‧‧fan

3‧‧‧ floating platform

4‧‧‧ Connector

5‧‧‧ support

7‧‧‧ water storage tank

22‧‧‧ Tower

24‧‧‧ Impeller

26‧‧‧ Round Valley

28‧‧‧ Blade

30‧‧‧ Ontology

31‧‧‧base

32‧‧‧Side

33‧‧‧Top plate

34‧‧‧ counterweight structure

35‧‧‧ resist

36‧‧‧ Valve

37‧‧‧ partition wall

38‧‧‧ partition

39‧‧‧ communication hole

42‧‧‧Fixed tube

44‧‧‧ fixed tube

46‧‧‧Fixed tube

48‧‧‧ fixed tube

49‧‧‧railing

52‧‧‧Receiving seat

54‧‧‧ connecting pipe

56‧‧‧Hydraulic cylinder

60‧‧‧Server

62‧‧‧Cable Rack

64‧‧‧Mooring

66‧‧‧ Anchor Structure

70‧‧‧wind detection device

72‧‧‧ pipeline

300‧‧‧ First Space

310‧‧‧ inside bottom

330‧‧‧Top accommodation space

332‧‧‧Top

334‧‧‧door

370‧‧‧ subspace

A‧‧‧Area

FIG. 1 is a schematic perspective view of an offshore wind power generating device according to an embodiment of the present invention; FIG. 2 is a schematic view of the offshore wind power generating device of FIG. 1 located at sea; FIG. 3 is a schematic view of the offshore wind power generating device of FIG. 1. Internal diagram of a floating platform; Figure 4 is an internal diagram of a floating platform for an offshore wind power plant according to another embodiment of the present invention; Figure 5 is a floating platform of an offshore wind power plant according to another embodiment of the present invention Internal gesture Figure 6 is a schematic internal diagram of a floating platform of an offshore wind power plant according to another embodiment of the present invention; Figure 7 is a schematic internal diagram of a floating platform of an offshore wind power plant according to another embodiment of the present invention; FIG. 8 is a schematic diagram of the first operation of the offshore wind power plant of FIG. 1; FIG. 9 is a schematic diagram of the second operation of the offshore wind power plant of FIG. 1; The internal schematic diagram of the floating platform of the offshore wind power generation device; FIG. 11 is the first operation schematic diagram of the offshore wind power generation device of FIG. 9; and FIG. 12 is the second operation schematic diagram of the offshore wind power generation device of FIG. .

In order to better understand the characteristics, content and advantages of this creation and the effect that it can achieve, we will combine this creation with the accompanying drawings and explain it in the form of examples in detail below. The main purpose of the drawings used is only For the purpose of illustrating and assisting the description, the scale and configuration of the attached drawings should not be interpreted, and the scope of patent application for this creation should not be limited.

An object of the present invention is to provide an offshore wind power generation device and an offshore wind power generation system, which have low cost and can stably float on the sea surface, thereby improving the power generation efficiency.

Please refer to FIG. 1 and FIG. 2, wherein FIG. 1 is a schematic perspective view of an offshore wind power generating device according to an embodiment of the present invention, and FIG. 2 is a schematic view of the offshore wind power generating device of FIG. 1 located at sea.

In this embodiment, an offshore wind power generator 1 includes a wind turbine 2 and a plurality of Floating platforms 3 and a plurality of connecting members 4. The plurality of floating platforms 3 are adapted to float on the water. The plurality of connecting members 4 are respectively connected to the floating platform 3 so that the plurality of floating platforms 3 are fixedly connected to each other. In this embodiment, the number of the floating platforms 3 is three, so that the floating platforms 3 form a triangle. The fan 2 is disposed between the floating platforms 3 and is connected to the floating platforms 3 respectively. That is, the floating platform 3 is located around the fan 2. It should be noted that the number of floating platforms 3 in a single offshore wind power generation device 1 is not intended to limit the present invention. In other embodiments, the floating platform 3 may be four, five, six, or more than seven to form a polygon.

In this embodiment, the connecting member 4 includes two parallel fixing pipes 42 and 44 connected in parallel between the two floating platforms 3 to provide horizontal support. The connecting member 4 also includes two other stiffening members 46 and 48, one end of which is connected to the floating platform 3, and the other end of which is connected to the lower fixing pipe 44 obliquely. The inclined arrangement of the stiffeners 46 and 48 can provide vertical support. In addition, the connecting member 4 is provided with a railing 49 on the fixed pipe 42, and a worker can walk between the two floating platforms 3 along the railing 49 on the fixed pipe 42.

In addition, the offshore wind power generating device 1 of this embodiment may further include a supporting platform 5 for supporting the wind turbine 2 and connected to the plurality of floating platforms 3. In this way, the fan 2 is connected to the floating platform 3 via the supporting platform 5. In this embodiment, the support base 5 includes a receiving seat 52 and a plurality of connecting pipes 54. The accommodating seat 52 is used for accommodating the fan 2, and two ends of each of the connecting pipes 54 are respectively pivotally disposed on the upper part of the accommodating seat and the upper part of the floating platform 3. In addition, the supporting platform 5 further includes a plurality of hydraulic cylinders 56, the opposite ends of which are respectively connected to the bottom of the receiving seat 52 and the upper portion of the plurality of floating platforms 3. The offshore wind power generation device 1 may further include a server 60, a wind detection device 70, and a lightning rod (not shown). The server 60 is disposed in the offshore wind power generating device 1, and the wind detecting device 70 may be disposed on the floating platform 3 or other positions. The server 60 adjusts the amount of fluid in each of the plurality of floating platforms 3 to adjust the weight of each of the plurality of floating platforms 3 by using the wind and direction detected by the wind detecting device 70 to balance the wind force. Power generation device 1. The server 60 can also adjust the detected wind force and direction. The amount of expansion and contraction of the plurality of hydraulic cylinders 56 is adjusted to adjust the inclination angle of the fan 2. Therefore, the offshore wind power generating device 1 can adjust the relative position of the floating platform 3 according to the change of the wind and the direction of the wind, and can actively or passively adjust the hydraulic cylinder 56 to adjust the position of the wind turbine 2 to further maximize the wind turbine 2 The best position and orientation are facing the wind to effectively capture the wind and improve the efficiency of power generation. In addition, the offshore wind power generation device 1 may further include a lightning rod (not shown), which is used to receive a lightning strike and prevent the lightning strike from damaging the offshore wind power generation device 1, particularly the wind turbine 2 in the offshore wind power generation device 1.

Please refer to FIG. 2. In this embodiment, the offshore wind power generating apparatus 1 further includes a plurality of cable frames 62, a plurality of tethers 64, and an anchoring structure 66. The cable frame 62 is fixedly disposed on the floating platform 3. One end of the tether cable 64 is respectively disposed on the floating platform 3, and the cable holder 62 can receive the tether cable 64 therein. The other end of the tether 64 is adapted to be fixed to an anchoring structure 66 located under the water. In addition, the length of the tether 64 can be designed to be greater than the shortest distance from the water surface to the bottom, and the location of the anchoring structure 66 can be located outside the area where the offshore wind power device 1 is projected on the bottom. Therefore, the tether 64 can have a The offshore wind power generation device 1 located on the water surface is fixed in a predetermined manner so that the offshore wind power generation device 1 can float on the water within a limited range.

Referring to FIG. 1, the wind turbine 2 may basically be a conventional wind turbine structure, which includes a tower 22 and an impeller 26. The tower 22 is inserted into the receiving seat 52, and the other end of the tower 22 is connected to the impeller 24. The impeller 24 includes a wheel valley 26 and a plurality of blades 28, and the wheel valley 26 is rotatably connected to the tower 22. The blades 28 respectively extend outward from one side of the wheel valley 26. In this embodiment, the number of the blades 28 is three. In other embodiments, the number of the blades 28 may be 1, 2, or 4 or more. The length of the blades 28 can be from 8 meters to 125 meters, so the diameter of the fan 2 can be up to 250 meters. In general, the larger the size of the fan 2 or the longer the length of the blades 28, the greater the efficiency of its power generation. For example, when the diameter of the fan 2 reaches 250 meters, its generating power can reach 20,000 kilowatts (KW). . In addition, the fan 2 may include a generator A motor (not shown), when the impeller 24 captures the wind and rotates, it can drive the rotor in the generator to rotate and pass the electromagnetic conversion between the rotor and the stator in the generator, and then convert it to generate electrical energy and store it.

Please refer to FIG. 1 and FIG. 3, wherein FIG. 3 is an internal schematic diagram of the floating platform 3 of the offshore wind power generating device 1 of FIG. 1. In this embodiment, the plurality of floating platforms 3 can be made of concrete reinforced concrete to form concrete box culverts. Compared with the conventional offshore wind power generation device, which is mainly made of steel structure, the structure Relatively simple, and manufacturing costs can be greatly reduced. Each floating platform 3 may include a main body 30 and a base 31. The body 30 is a hollow structure, and the interior of the body 30 can contain a fluid, such as water. The base 31 is connected to the bottom end of the body 30. In detail, the body 30 includes a plurality of side plates 32 and a top plate 33. The bottom of each of the side plates 32 is respectively connected to the base 31, and the side plates 32 are extended and connected toward the top plate to form a hollow structure. It should be noted that the base 31 includes a counterweight structure 34 for increasing the weight of the lower part of the floating platform 3 so that the center of gravity of the floating platform 3 is located on the lower side of the floating platform 3, such as the bottom of the floating platform 3. Because the floating platform 3 is a hollow structure, the overall density is small and the volume is large. At the same time, because the center of gravity of the floating platform 3 is below, and compared with the floating platform 3 whose center of gravity is located at the center or above, the floating platform 3 whose center of gravity is located below can be stabilized. The ground floats on the water. In this embodiment, the weight structure 34 is a plate-like structure, which corresponds to the shape of the bottom of the side plate 32, and the weight structure 34 of this embodiment can be integrally formed with the bottom of the side plate 32 and the body 30. With this hollow structure, the offshore wind power generating device 1 can be suitable for floating on water, and not be affected by the water depth, and can be installed in a shallow sea area or a deep sea area.

Please refer to FIG. 4, which is an internal schematic diagram of the floating platform 3 of the offshore wind power generating device 1 according to another embodiment of the present invention. In the present invention, the floating platform 3 may have a top receiving space 330 located on one side of the body 30 relative to the base 31. The top accommodation space 330 can accommodate electromechanical equipment, and an operator can enter the top accommodation space 330 to operate the electromechanical equipment. Or Yes, the top accommodation space 330 can be used by the operator to place other tools and spare parts. In addition, the floating platform 3 is also provided with a door 334 opposite to the railing 49, which is adapted to connect the outside with the top accommodation space 330 for the operator to enter and exit the top accommodation space 330.

Please refer to FIG. 5, which is an internal schematic diagram of the floating platform 3 of the offshore wind power generation device 1 according to another embodiment of the present invention. In this embodiment, the weight structure 34 includes a plurality of partition walls 37, which are erected on an inner bottom surface 310 of one of the bases 31, and the partition walls 37 are staggered with each other. In detail, the number of the partition walls 37 in this embodiment is two. The partition wall 37 extends in a horizontal and vertical manner (that is, the X-axis and the Y-axis that are perpendicular to each other) between the opposite side plates 32 and is orthogonally connected to the center of the base 31. In this embodiment, the partition wall 37 defines four spaced-apart subspaces 370. In this embodiment, the height of the partition wall 37 is between about one sixth and one third of the height of the main body 30.

Please refer to FIG. 6, which is an internal schematic diagram of the floating platform 3 of the offshore wind power generation device 1 according to another embodiment of the present invention. In this embodiment, the plurality of partition walls 37 extend to a top surface 332 of the main body 30 to divide the interior of the main body 30 into a plurality of first spaces 300. In detail, the partition wall 37 can define four first spaces 300 of the same volume. Wherein, each of the first spaces 300 further includes a plurality of partition plates 38 standing on the inner bottom surface 310 of the base 31 and defining a plurality of subspaces 370 in each of the first spaces 300. In this embodiment, each of the first spaces 300 includes a partition wall 37 extending along the X axis and along the Y axis to form four subspaces 370 orthogonal to each other, and the height of the partition wall 37 is greater than the partition wall 37. The height of the plate 38. In other words, in this embodiment, the partition wall 37 and the partition plate 38 are disposed on the inner bottom surface 310 of the base 31 and are orthogonal or parallel to each other. In this way, the side walls and partition walls 37 define four first spaces 300 in a two-by-two arrangement; the side walls, partition walls 37 and partition 38 form a four-by-four arrangement together to define sixteen sub-spaces. Space 370. Meanwhile, the number of subspaces 370 in the body 30 is greater than the number of the first spaces 300 Head. In addition, in this embodiment, at least one of the partition wall 37 and the partition plate 38 has a communication hole 39 for communicating with at least one adjacent subspace 370. In this way, the fluid can flow through the communication holes 39 through the sub-spaces 370 and the first spaces 300 through control.

Please refer to FIG. 7, which is an internal schematic diagram of the floating platform 3 of the offshore wind power generation device 1 according to another embodiment of the present invention. In this embodiment, the four partition walls 37 extend to one of the top surfaces 332 of the body 30 and are connected to each other alternately to divide the inside of the body 30 into nine first spaces 300. Each of the first spaces 300 further includes two partition plates 38 erected on the inner bottom surface 310 of the base 31 and collectively defining four subspaces 370. As such, in this embodiment, the partition wall 37 and the partition plate 38 define thirty-six sub-spaces 370. Meanwhile, the number of the first spaces 300 in the body 30 is greater than the number of the sub-spaces 370 in each of the first spaces 300. In addition, in this embodiment, at least one of the partition wall 37 and the partition has a communication hole 39 for communicating with at least one adjacent subspace 370. In this way, the fluid can flow through each of the subspaces 370 and each of the first spaces 300 through the communication holes 39. In this embodiment, for example, the height (along the Z axis) of the floating platform 3 is 20 meters, the length and width (along the X axis and the Y axis) are both 10 meters, and the thickness of the base 31 (along the Z axis) ) Is 0.5 meters, the height of the partition 38 (along the Z axis) is 1.5 meters, the thickness of the partition 38 (along the X and Y axes) is 0.5 meters, and the thickness of the side wall (along the X and Y axes) ) Is 0.5 meters, and the net weight of the floating platform 3 is 1,534 tons. The structure of the floating platform 3 can effectively withstand the water pressure of 16 metric tons per parallel meter (t / m ² ). However, the structure and shape of the above-mentioned weight structure 34 are not intended to limit the present invention, and any structure that can achieve the effect of the weight structure 34 of the case is included in the scope of the case. For example, in other embodiments, the partition wall 37 may only extend to the middle of the side wall and not to the top. In the above embodiment, the shape of the body 30 is a rectangular parallelepiped. However, in other embodiments, the body 30 may be a cylindrical shape, a polygonal cylinder, a cone, or a truncated cone (not shown).

Please refer to FIG. 8, which is the first operation of the offshore wind power installation 1 of FIG. 1. schematic diagram. In this embodiment, each of the plurality of floating platforms 3 includes at least one valve 36 and a pump (not shown), and the valve 36 is in communication with the outside for introducing or discharging fluid (such as seawater). The wind detection device 70 adjusts the weight of each of the floating platforms 3 by introducing or discharging fluid from each of the floating platforms 3 by adjusting at least one valve 36 by the detected wind and direction, thereby balancing the wind power generating device 1. For example, when the wind turbine 2 is disposed on the floating platform 3, fluid can be introduced into other floating platforms 3 to balance the offshore wind power generation device 1 at sea. The seawater inside the floating platform 3 can also be discharged into the sea through the valve 36, reducing the weight of the floating platform 3 to achieve balance. In this way, when the offshore wind power generating device 1 is running, the wind turbine 2 can be stably installed on the sea surface, and the wind can be captured stably. In addition, the inner wall surface of the floating platform 3 may be coated with a resist layer 35 to prevent erosion by seawater or other corrosive fluids.

Please refer to FIG. 9, which is a schematic diagram of the second operation of the offshore wind power generating device 1 of FIG. 1, wherein the offshore wind power generating device 1 converts the floating platform 3 on the right side of the drawing according to the detected wind speed and ocean current conditions. The water level inside rises so that the offshore wind power installation 1 reaches equilibrium on the sea surface. However, the manner in which the fan 2 is installed on one of the floating platforms 3 is not limited to the present invention.

Please refer to FIG. 10, which is an internal schematic diagram of the floating platform 3 of the offshore wind power generating device 1 according to another embodiment of the present invention. In this embodiment, the offshore wind power generation device 1 does not use the valve 36 in the embodiment shown in FIGS. 8 and 9 to introduce or discharge seawater. In this embodiment, the offshore wind power generation device 1 further includes a water storage tank 7 disposed below the fan 2 and storing fresh water. The water storage tank 7 communicates with the inside of the bodies 30 of the plurality of floating platforms 3 through a pipe 72. In this way, the water storage tank 7 and the floating platform 3 together form a closed water supply system, as shown in FIG. 11, which is a first operation schematic diagram of the offshore wind power generation device 1 of FIG. 10. When the amount of fluid water in the floating platform 3 needs to be changed, the floating platform 3 can introduce or discharge fluid from the water storage tank 7 through a pipe 72 through a valve (not shown) to change the water level between the floating platforms 3, as shown in the figure. As shown in FIG. 12, it is a schematic diagram of the second operation of the offshore wind power generating device 1 of FIG. 9, in which part of the water in the water storage tank 7 is guided to the floating platform 3 on the right side. Yes Therefore, in the closed water supply system of this embodiment, the fluid can be guided to various places through the internal circulation without contacting the outside (such as sea water), which can improve the cleanliness of the inside of the floating platform 3. At the same time, compared with valves 36 and pumps that introduce or discharge seawater, this closed water supply system does not require a powerful pump to easily circulate fluid to the desired location.

In addition, an embodiment of the present invention may provide an offshore wind power generation system including a plurality of the above-mentioned offshore wind power generation devices 1 which may be connected to each other to form a series or parallel type wind farm. The number of offshore wind power installations 1 can be adjusted according to actual needs.

The terms "a" or "an" in this article are used to describe the elements and components of this creation. This term is only for the convenience of narrative and the basic ideas given to this creation. This description should be understood to include one or at least one, and unless explicitly stated otherwise, the singular also includes the plural. When used with the term "comprising" in the scope of a patent application, the term "a" may mean one or more than one. In addition, the term "or" in this text means "and / or".

Unless otherwise specified, such as "above", "below", "up", "left", "right", "down", "body", "pedestal", "vertical", "horizontal", "side" , "Higher", "lower", "upper", "upper", "lower" and other spatial descriptions indicate the directions shown in the figure. It should be understood that the spatial description used herein is for illustration purposes only, and the actual implementation of the structure described herein can be spatially configured in any relative direction, and this limitation does not change the advantages of the embodiments of the present invention. For example, in the description of some embodiments, providing one element "on" another element may cover the situation where the former element is directly on the latter element (e.g., in physical contact with the latter element) and a Or a condition where a plurality of intervening elements are located between a previous element and a subsequent element.

As used herein, the terms "substantially", "substantially", "substantially" and "about" are used to describe and consider minor variations. When used in conjunction with an event or situation, these terms may It means a situation in which an event or situation occurs explicitly and a situation in which the event or situation closely resembles.

The above-mentioned embodiments are only for explaining the technical ideas and characteristics of this creation. The purpose is to enable those who are familiar with this technique to understand the content of this creation and implement it accordingly. When the scope of the patent of this creation cannot be limited, Equal changes or modifications made in accordance with the spirit revealed in this work shall still be covered by the patent of this work.

Claims (17)

An offshore wind power generation device includes: a wind turbine; a plurality of floating platforms located around the wind turbine and adapted to carry the wind turbine; each of these floating platforms includes: a body having an opposite bottom and a top And a base connected to the bottom of the body, the base including a counterweight structure, wherein the counterweight structure includes a plurality of partition walls erected on an inner bottom surface of the base, and the partition walls are staggered with each other, and The partition walls extend to the top surface of the body to divide the body into a plurality of first spaces, wherein each of the first spaces further includes a plurality of partitions, and the partitions are erected on the A plurality of subspaces are defined on the inner bottom surface of the base, and the heights of the partition walls are greater than the heights of the partitions; and a plurality of connecting members are respectively connected to the floating platforms. For example, the offshore wind power generating device of claim 1, wherein at least one of the partition walls and the partitions has a communication hole for connecting at least one adjacent subspaces. For the offshore wind power installation of claim 1, wherein the partition walls and the partitions are orthogonal or parallel to each other. For example, the offshore wind power installation of claim 1, wherein the number of the first spaces is greater than the number of the subspaces. For example, the offshore wind power installation of claim 1 further includes a support platform for supporting the wind turbine, and is connected to the floating platforms. For example, the offshore wind power generating device of claim 5, wherein the support platform includes a receiving seat and a plurality of connecting pipes, and the receiving seat is used to house the wind turbine, and two ends of each of the connecting pipes are pivoted respectively. In the accommodation seat and the floating platforms. For example, the offshore wind power generation device of claim 6, wherein the support platform further includes a plurality of hydraulic cylinders, and the two ends of the support platform are respectively connected to the accommodation seat and the floating platforms. For example, the offshore wind power generation device of claim 5, wherein the number of the floating platforms is three, the floating platforms form a triangle, and the supporting platform is arranged between the floating platforms. For example, the offshore wind power installation of claim 1 further includes a plurality of tethers, one end of which is respectively disposed on the floating platforms, and the other end thereof is suitable for being fixed to an anchoring structure. For the offshore wind power installation of claim 1, wherein the plurality of floating platforms are made of reinforced concrete. The offshore wind power installation of claim 7, wherein each of the floating platforms includes at least one valve in communication with the outside for introducing or discharging fluid. For example, the offshore wind power generating device of claim 11 further includes a wind detecting device installed in the offshore wind power generating device, and the at least one valve is adjusted to introduce or discharge the floating platforms through the detected wind and wind direction. The amount of fluid in each of them adjusts the weight of each of the floating platforms, thereby balancing the wind power plant. For example, the offshore wind power generation device of claim 11 further includes a server installed in the offshore wind power generation device, and adjusts the expansion and contraction of the hydraulic cylinders by the detected wind and direction to adjust the wind turbine's slope. For example, the offshore wind power generation device of claim 1 further includes a water storage tank and a plurality of communication pipes, and the water storage tank communicates with the interior of the bodies through the plurality of communication pipes. The offshore wind power generating device of claim 14, wherein the water storage tank is disposed below the wind turbine. If the offshore wind power installation of claim 14 further comprises a plurality of brackets for fixing the water storage tank to the floating platforms. An offshore wind power generation system includes: a plurality of offshore wind power generation devices according to any one of claims 1 to 16, connected to each other.