KR20210155028A - Floating anchor structure for photovoltaic system and wind system - Google Patents

Abstract

Disclosed is a floating mixed anchor structure which does not require additional anchor installation by anchoring to a foundation support structure of offshore wind power generation. The floating mixed anchor structure comprises: a pillar member; a suction foundation for fixing the pillar member; and a belt unit surrounding a lower part of the pillar member. According to the present invention, additional anchor installation is unnecessary by anchoring the foundation support structure of the offshore wind power generation.

Description

Floating anchor structure for photovoltaic system and wind system

The present invention relates to a floating solar anchor to a solar anchor, and more particularly, to a floating solar wind power mixed anchor structure that does not require additional anchor installation by anchoring to the basic support structure of offshore wind power generation.

Floating solar power refers to a system that converts solar energy into electrical energy by floating a solar module on water (reservoir, reservoir, dam, etc.) or on the sea using a floating body. In the case of floating solar power, a solar module that can be used in a sleeping environment, a structure to install the module, a floating body to make the structure float on water, mooring line to fix the structure so that it does not float away, anchors and weights, and connecting the module and the electrical room It consists of an underwater cable, etc. In particular, since the temperature of water lowers the temperature of the module, it is known to be about 10% more efficient than onshore solar power generation.

To prevent these floating bodies from drifting, a mooring (cable) facility is used to connect the floating body to the ground (reservoir bottom, seabed ground, etc.). At this time, the facility fixed to the ground is called an anchor.

Types of anchors include drag anchors, suction anchors, pile anchors, gravity anchors, and dynamic anchors. The drag anchor is the principle of fixing an anchor in the ground and fixing it with resistance, and the suction anchor is the principle of using a pressure pump to penetrate the structure into the ground and fixing it using frictional force. In addition, the pile anchor is a principle of fixing by penetrating a pile into the ground, and the gravity anchor is a principle of fixing a heavy structure by positioning it on the seabed.

The dynamic anchor is made by combining the strengths of drag anchors, gravity anchors, and pile anchors. It is a principle that a heavy anchor in the form of a missile is dropped and embedded deeply in the ground, and then fixed with resistance, support, and high weight.

However, in the case of the pile anchor among these types of anchors, the destruction of the surrounding environment due to vibration is caused because it must be driven on the seabed. In addition, drag anchors and suction anchors have a disadvantage in that they are affected by the type of seabed ground (mud, sand, gravel, bedrock, etc.). In addition, gravity anchors may be swept away by currents in extreme environments such as typhoons, and have a problem in that it is difficult to calculate accurate bearing capacity. In addition, although the dynamic anchor has various advantages, it has a disadvantage of high cost.

However, unlike the aquatic environment, it is difficult to ensure the safety of the structure in the marine environment due to the influence of high wave heights and typhoons. In addition, since the complex external environmental influences such as seafloor topography and tides, tidal waves, and salinity must be taken into consideration, the facilities are enlarged, and thus business feasibility and/or economic feasibility are lowered.

1. Korean Patent No. 10-1075161 (Registration Date: 2011.10.13)

The present invention has been proposed to solve the problems according to the above background art, and it is an object of the present invention to provide a floating solar wind power mixed anchor structure that does not require additional anchor installation by anchoring to the basic support structure of offshore wind power generation.

In addition, the present invention has a much greater bearing capacity than the anchor used in the prior art, and another object is to provide a floating solar wind power mixing anchor structure capable of reducing anchor installation cost by adding a simple facility.

In addition, according to the present invention, when an extreme load such as a typhoon is encountered, the most dangerous phenomenon in offshore wind power is a conduction phenomenon due to a moment. Floating solar power that can improve the safety of the entire structure by applying a mooring tensile force to the seabed base It is another object to provide a wind mixing anchor structure.

The present invention provides a floating mixed anchor structure that does not require an additional anchor installation by anchoring to the base support structure of an offshore wind power generation in order to achieve the object presented above.

The mixed anchor structure is

pillar member;

a suction foundation for fixing the column member; and

and a belt part surrounding the lower part of the pillar member.

In addition, the upper surface of the suction base is characterized in that the projection is formed.

In addition, the floating solar wind power mixing anchor structure, a first fixing member for connecting and fixing between the lower portion of the protrusion and the pillar member; characterized in that it comprises a.

In addition, the floating solar and wind power mixing anchor structure, connecting and fixing between the lower portion of the protrusion and the pillar member, the first fixing member and a second fixing member installed at a predetermined interval; characterized in that it comprises a.

In addition, the diameter of the second fixing member is characterized in that larger than the diameter of the first fixing member.

In addition, the belt part is characterized in that it is disposed between the first fixing member and the second fixing member.

In addition, the belt portion is characterized in that it is fixed by welding on the surface of the pillar member.

In addition, an offshore wind structure is disposed at the end of the pillar member, a solar device is disposed at the end of the mooring line connected to the belt part, and the direction of the moment due to the wind load and the direction of the moment due to the mooring tensile force are opposite Moments applied to the offshore wind structure and the solar device are characterized in that they cancel each other.

On the other hand, another embodiment of the present invention, the suction base; a first mooring line connecting the suction foundation and at least one of a first floating offshore wind turbine and a second floating offshore wind turbine to each other; and a second mooring line connecting the suction foundation and the solar device to each other; provides a floating solar wind power mixing anchor structure comprising a.

On the other hand, another embodiment of the present invention, the suction base; a first mooring line connecting the suction foundation and at least one of a first floating offshore wind turbine and a second floating offshore wind turbine to each other; and a second mooring line connecting at least one of the first floating offshore wind turbine and the second floating offshore wind turbine and a solar device to each other; provides a floating solar wind power mixing anchor structure comprising a .

According to the present invention, an additional anchor installation is unnecessary by anchoring the base support structure of the offshore wind power generation.

In addition, as another effect of the present invention, it is possible to share the anchor facility of the mooring system and the base of wind power generation, so that the construction cost of the mooring anchor can be reduced.

In addition, as another effect of the present invention, it is possible to obtain a much larger anchor support force compared to the existing anchor.

In addition, as another effect of the present invention, it is possible to reduce the load for the overturning moment of the offshore wind power generation in an extreme load situation (typhoon).

1 is a conceptual view showing an anchor structure according to an embodiment of the present invention.
Figure 2 is a plan view from above of the anchor structure shown in Figure 1;
3 is a conceptual diagram of a solar wind mixed power generation system using an anchor structure according to an embodiment of the present invention.
FIG. 4 is a conceptual diagram of the operation of the solar wind power hybrid power generation system shown in FIG. 3 .
5 is a conceptual diagram of a mooring structure according to another embodiment of the present invention.
6 is a conceptual diagram of a mooring structure according to another embodiment of the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing each figure, like reference numerals are used for like elements. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term “and/or” includes a combination of a plurality of related listed items or any of a plurality of related listed items.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. shouldn't

Hereinafter, a floating solar wind power mixing anchor structure according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram showing an anchor structure 100 according to an embodiment of the present invention. Referring to FIG. 1 , the anchor structure 100 includes a pillar member 110 , a suction base 120 for fixing the pillar member 110 , a belt unit 170 surrounding the pillar member 110 , and the like. can be

A protrusion 150 is formed on the upper surface of the suction base 120 . The suction foundation 120 is a suction anchor for anchoring the offshore structure to a predetermined position in order to anchor the offshore structure. The suction anchor is transported by a separate vessel and penetrates the seabed 10 at an appropriate location in the area where the offshore structure is to be moored to withstand vertical and horizontal loads, and ends of the mooring chain connected to the offshore structure. It is a device connected to

In addition, the structure of the suction anchor is mainly formed by turning the cup upside down, and the pump is installed on the upper part of the body in communication with the inside of the body to draw seawater inside the body and penetrate into the ground.

The upper surface protrusion 150 of the suction foundation 120 is formed. A first fixing member 130 connecting and fixing the protrusion 150 and the lower portion of the pillar member 110 is installed. In addition, a second fixing member 160 is installed to connect and fix the protrusion 150 and the lower portion of the pillar member 110 , and to be installed at a predetermined interval from the first fixing member 130 .

The first fixing member 130 is a reinforcing material of the second fixing member 160 and has a bracing structure. As a material of the first fixing member 130 and the second fixing member 160 , a steel pipe or the like may be mainly used.

A diameter of the second fixing member 160 is larger than that of the first fixing member 130 . Both ends of the first fixing member 130 and the second fixing member 160 are respectively joined to the pillar member 110 and the protrusion 150 by welding.

The belt unit 170 is disposed between the first fixing member 130 and the second fixing member 160 . Of course, it is also possible to join the belt portion 170 to the pillar member 110 by welding. It is also possible to fix the belt unit 170 by disposing it between the first fixing member 130 and the second fixing member 160 without joining by welding.

However, in the case of a marine environment, as the fluid is moved according to the ebb and flow, both of them may be used to fix the belt unit 170 to the column member 110 .

The pillar member 110 has a hollow interior, and the power line 140 is connected to the power line of a wind power device (not shown) and a solar device (not shown) installed at the sea level 20 .

A cable 180 may be connected to the belt unit 170 . The cable 180 may include a mooring line and a power line. To this end, a connecting ring may be formed at the end of the cable 180 (especially in the case of a mooring line cable). Of course, eye bolts are installed on the belt unit 170 for such a connection ring. In addition to the connection ring method, a screw bolt method is also possible.

Contrary to this, in the case of a power line cable, a through hole (not shown) may be formed in both the belt unit 170 and the pillar member 110 to be inserted into the pillar member 110 .

On the other hand, it is also possible to configure the mooring line and the power line as one cable. That is, configuring a power line inside a mooring line is mentioned. In this case, it is fixed to the belt part 170 in a knot method, and then the cable is inserted into the through hole formed in the belt part 170 and the pillar member 110 again.

FIG. 2 is a plan view of the anchor structure 100 shown in FIG. 1 as viewed from above. Referring to FIG. 2 , the belt unit 170 is installed to be in contact with the circumferential surface of the pillar member 110 . The column member 110 is positioned at the center of the first to third suction foundations 220-1 to 220-3 arranged in an equilateral triangle, and the 2-1 to 2-3 fixing members 260-1 to 260-3 ) is fixed by A mooring line 281 and a power line 282 are connected to the belt unit 170 .

3 is a conceptual diagram of a solar wind mixed power generation system using an anchor structure according to an embodiment of the present invention. Referring to FIG. 3 , wind power generation converts electricity by installing an inverter in the nacelle part, and the power cable 382 comes down to the base 320 along the wind tower, and is transmitted to the ground using the underwater cable 330 . do. Of course, at this time, the power line 382 of the solar device 300 installed on the water surface is also installed along the mooring line 381 , and may be connected to the underwater cable 330 .

Offshore wind power based shared floating solar anchor according to an embodiment of the present invention installs a floating type inverter to convert electricity, install a power cable along a mooring line, and connect it to an existing installed underwater cable. Installation cost can be reduced. In addition, more precise horizontal control of the solar device 300 is possible by installing the damper 301 .

FIG. 4 is a conceptual diagram of the operation of the solar wind power hybrid power generation system shown in FIG. 3 . Referring to FIG. 4 , it is the overturning moment due to the moment that has the greatest effect on the offshore wind power structure 400 in an extreme environment such as a typhoon. In particular, in a typhoon situation, the direction due to wind load and wind wave (wave caused by wind) tends to be close.

In such a situation, the overturning moment of the offshore wind power structure 400 is calculated at the center of gravity 401. As the direction of the moment due to the wind load and the direction of the moment due to the mooring tensile force are opposite, the moment applied to the entire structure is reduced by offsetting each other

5 is a conceptual diagram of a mooring structure according to another embodiment of the present invention. Referring to FIG. 5 , mooring lines 580 and 590 are fixed to the suction foundation 520 , and the floating offshore wind turbines 510 - 1 and 510 - 2 and the solar device 300 are connected. That is, the suction foundation 520, the first floating offshore wind turbine 510-1, and the second floating offshore wind turbine 510-2 are connected to the first mooring line 580, and the suction foundation 520 and The solar device 300 is connected to the second mooring line 590 .

6 is a conceptual diagram of a mooring structure according to another embodiment of the present invention. Referring to FIG. 6 , mooring lines 580 and 590 are fixed to the suction foundation 520 , and the floating offshore wind turbines 510 - 1 and 510 - 2 and the solar device 300 are connected. That is, the suction foundation 520, the first floating offshore wind turbine 510-1, and the second floating offshore wind turbine 510-2 are connected to the first mooring line 580, and the first floating offshore wind turbine The turbine 510-1, the second floating offshore wind turbine 510-2, and the solar device 300 are connected by a second mooring line 590.

10: bottom
20: sea level
100: floating solar wind mixed anchor structure
110: column member
120: suction base
130: first fixing member
140: power line
150: protrusion
160: second fixing member
170: belt part
180: cable

Claims (10)

pillar member 110;
a suction base 120 for fixing the column member 110; and
a belt portion 170 surrounding the lower portion of the pillar member 110;
Floating solar wind power mixing anchor structure comprising a.
The method of claim 1,
Floating solar wind power mixing anchor structure, characterized in that the projection 150 is formed on the upper surface of the suction foundation (120).
3. The method of claim 2,
Floating solar wind power mixing anchor structure comprising a; a first fixing member 130 for connecting and fixing the lower portion of the protrusion 150 and the pillar member 110 .
4. The method of claim 3,
Floating type comprising a; a second fixing member 160 that connects and fixes the protrusion 150 and the lower portion of the pillar member 110 and is installed at a predetermined interval from the first fixing member 130 Solar wind mixed anchor structure.
5. The method of claim 4,
The diameter of the second fixing member (160) is a floating solar wind power mixing anchor structure, characterized in that larger than the diameter of the first fixing member (130).
5. The method of claim 4,
The belt unit 170 is a floating solar wind power mixing anchor structure, characterized in that disposed between the first fixing member 130 and the second fixing member (160).
5. The method of claim 4,
The belt part 170 is a floating solar wind power mixing anchor structure, characterized in that it is fixed by welding on the surface of the pillar member (110).
The method of claim 1,
An offshore wind structure 400 is disposed at the distal end of the pillar member 110 , and the solar device 300 is disposed at the distal end of the mooring line 281 connected to the belt unit 170 , Floating solar wind power mixed anchor structure, characterized in that the direction and the direction of the moment by the mooring tensile force are reversed, and the moment applied to the offshore wind structure 400 and the photovoltaic device 300 is offset from each other.
suction foundation 520;
a first mooring line 580 connecting at least one of the suction foundation 520 and the first floating offshore wind turbine 510 - 1 and the second floating offshore wind turbine 510 - 2 with each other; and
a second mooring line 590 connecting the suction foundation 520 and the solar device 300 to each other;
Floating solar wind mixed anchor structure comprising a.
suction foundation 520;
a first mooring line 580 connecting at least one of the suction foundation 520 and the first floating offshore wind turbine 510 - 1 and the second floating offshore wind turbine 510 - 2 with each other; and
a second mooring line 590 connecting at least one of the first floating offshore wind turbine 510-1 and the second floating offshore wind turbine 510-2 and the solar device 300 to each other;
Floating solar wind power mixing anchor structure comprising a.

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