KR100942904B1 - Float type solar energy generating device - Google Patents

Abstract

PURPOSE: A float type solar energy generating device is provided to secure stable power by floating and supporting an aquatic structure through a fixing member. CONSTITUTION: A solar cell module is arranged on In an aquatic structure(10) and has a penetration hole(11). A structure connection unit(20) fixes an aquatic structure in the horizontal direction and makes it varied in vertical direction. A rotation driving(30) rotates the aquatic structure to an optimum position according to the track of the sun by a controller. A second connection line is expanded and is crossed at the center of each other and it is connected through a fixture. A third connection line(23) is passed through a penetration hole and is vertically installed. A lifting unit(24) is installed at the aquatic structure and pull and release the third connection line vertically.

Description

Float type Solar Energy Generating Device

The present invention relates to a surface floating photovoltaic device, and more particularly, to install an aquatic structure on the surface of a reservoir or the like, and install a photovoltaic device on the aquatic structure, but keep track of it as the position of the sun changes. While it relates to a surface-floating photovoltaic device that can generate electricity by converting solar energy.

In general, the photovoltaic power generation refers to a power generation method that converts sunlight directly into electric power by a solar cell.

That is, the photovoltaic power generation is different from the solar power generation that receives energy from sunlight and generates energy by using heat, and thus, electricity is directly generated in a solar cell made of a semiconductor material under sunlight.

The photovoltaic power generation is a power generation method using a solar cell that generates photovoltaic power by photoelectric effect when light is irradiated. The general configuration is a module composed of a solar cell, a storage battery, and a power conversion. It consists of a device.

Examples of solar cells include selenium photovoltaic cells using copper and metal sulfide photovoltaic cells, silicon photovoltaic cells using semiconductor pn junctions, and the like.

In addition, the above-described photovoltaic power generation is classified into a fixed type, a fixed variable type, a single type tracking type, and a double axis tracking type according to the installation type of the solar cell module.

The stationary type is a solar cell module fixedly installed toward the south, the solar light module is effectively developed in the afternoon sunlight is good, but there is a problem that the lack of power generation for sunlight incident from the side direction, the cost is low but desired At the same time, it is difficult to expect power generation efficiency.

In the case of the fixed variable type, the solar cell module is fixed toward the south, and divided into several times a year according to the change in the height of the sun to change the upper and lower angles of the solar cell module.

The short axis type uses a method in which angles are changed in units of time so that the solar cell module can be rotated from east to west directions according to the movement trajectory of the sun. It is a method of changing the upper and lower angles while rotating toward the direction.

The above-mentioned photovoltaic power generation method has excellent efficiency in the order of biaxial type> short axis type> fixed variable type> fixed type from the point of view of efficiency. Coping measures for development were sought.

Accordingly, in order to solve such a problem, prior arts having a fixed type or a fixed variable type and having a short or double type function have been proposed. For example, Korean Utility Model Registration No. 442088, which is pre-registered by the applicant of the present application, an award structure Disclosed is a photovoltaic device installed at a.

Photovoltaic power generation device installed on the water structure is installed on the water surface, compared to the photovoltaic power generation device installed on the ground photovoltaic power generation that can be predicted by the blocking of the sunlight due to the temperature rise by the heat and the sun, scrubs, falling snow, etc. There is an effect that can solve the problem of reduced power generation efficiency of the device.

Its structure is located on the surface of the water and leisure facilities available in the water, theaters and cafes are provided with a water structure to stay at the same time, a plurality of solar cells connected to each other on the above water structure is incident light from the sun A solar cell module for converting energy into electrical energy, and the above-described water phase along the orbit of the sun so that the angle between the solar cell module and the sun, which is installed in the water structure, can be maintained close to a right angle. A movable part for rotating the position of the structure; And said It is configured to include a control unit for controlling the movable part so that the power generation state of the electrical energy input from the solar cell module and the position of the water structure can be rotated to an optimal position along the orbit of the sun.

However, this conventional technology has a problem that the water structure is overturned or damaged by rolling occurring on the reservoir surface caused by natural wind.

In addition, the solar cell module is fixed in one place for a long time in the summer when the temperature is high, the resistance value of the current flowing therein by the hot solar heat is increased, the power is lost, not only the power generation efficiency is lowered, but also malfunction occurs As a result, there is a problem of shortening the lifespan. In this case, the administrator has to spray water directly to the hose or to operate a separate sprinkler to reduce the temperature.

Therefore, the present invention has been invented to solve the above problems, but the fixed or fixed variable photovoltaic device is installed on the water structure, the water structure does not cause problems due to obstacles such as rolling of the reservoir surface. By installing a structure connection fixing means connected to the water structure on the bottom surface below the water surface floating floating, and when a change in low water volume, by varying the distance to the structure connection fixing means, the solar cell module and In addition to allowing the sun to be incident at the optimum angle between the sun, and to provide a surface-mounted photovoltaic device that can stably and easily generate power.

In order to achieve the above object, the present invention is floating on the water surface is rotatable, and in the surface floating solar cell apparatus comprising a solar cell module for converting light energy irradiated from the sun into electrical energy, the solar cell A water module having a module disposed therein and having a through hole; A structure connection fixing means connected to the water structure on the bottom surface of the water surface in which the water structure is floated so as to be fixed in the horizontal direction and to be variable in the vertical direction; And it is characterized in that it comprises a rotation drive means installed in the water structure so that the position of the water structure is rotated to an optimal position along the trajectory of the sun by the control device.

The present invention is a preferred embodiment, the structure connection fixing means, consisting of a connecting member, the center is extended to cross each other is connected to each other through a first fixing body fixed to the bottom surface below the water surface 2 connecting wires; A third connecting line made of a connecting member and vertically installed through the through hole formed in the water structure in a state of being connected to an intersection point of the second connecting line; And a lifting means installed on the water structure to pull or loosen the third connecting line in a vertical direction.

The rotary drive means is provided on each side of the edge of the water structure winding device for generating a rotational driving force; And it is made of a connecting member, one end is connected to each other in the hoisting machine, the other end is characterized in that it comprises a first connecting line connected to the second fixed body supported on the bottom of the land or reservoir.

In addition, it is characterized in that it further comprises an auxiliary fixing means which is provided on the water structure in the direction corresponding to the rotation drive means so that the solar cell module can be fixed in place while not leaving the movement trajectory of the sun. .

It is characterized in that the support is provided so that the wire connected to the floating on the water so that the electricity generated in the water structure can be applied to the electricity generating device provided on the land.

The water structure is characterized in that it is provided with an open slot hole made to face the surface of the reservoir and the solar cell module directly.

In addition, the water structure is characterized in that it is installed in at least one reservoir of the artificial reservoir or natural reservoir consisting of a water tank capable of storing a predetermined amount of water by water supply.

In addition, the artificial reservoir is characterized in that the cooling device is installed to lower the temperature of the storage water.

As seen above, according to the water-floating solar cell apparatus according to the present invention, the waterborne structure on which the solar cell module is disposed to be supported by the structure connection fixing means under the water surface, when a change in depth occurs, By varying the distance to the structure connection fixing means, not only the solar cell module and the sun can be incident at the optimum angle, but also the power can be secured stably and easily, and semi-permanent operation is possible. have.

In addition, there is an effect that the solar cell module can be cooled in a natural manner.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of a surface floating photovoltaic device according to the present invention, Figure 2 is a plan view showing a surface floating photovoltaic device according to the present invention, Figure 3 is a present invention Sectional drawing which shows the surface floating type photovoltaic device which concerns on.

In addition, Figure 4 is a plan view showing another embodiment of the surface-mounted photovoltaic device according to the present invention, Figure 5 is a cross-sectional view showing another embodiment of the surface-mounted photovoltaic device according to the present invention, 6 is a cross-sectional view showing yet another embodiment of the surface-floating photovoltaic device according to the present invention.

As shown in FIG. 1, the fixed or solar cell module 100 fixed to the south is fixed toward the south, and divided into several times a year according to the change in the height of the sun. In the photovoltaic device made of a fixed variable to change the upper, lower angles of the solar cell module 100, the components constituting such a photovoltaic device is a commonly used technology configuration. Here, the solar cell module 100, which can be referred to as a core configuration, is modularized by connecting a plurality of solar cells 101 which generate electricity by a semiconductor material receiving solar light, and have an inclination structure formed at a predetermined angle. It is supported by the support 102 so that the sun's light can be incident almost vertically. In addition, the inverter, which is a power converter (not shown), serves to convert DC power into AC since the electricity formed through the solar cell module 100 is a DC whose voltage and current are not constant. At this time, the frequency conversion converter (DC / DC converter) is to convert the voltage output through the solar cell module 100 is constant, the inverter is to convert the DC to AC. An electricity generating device (not shown) such as the power converter and the battery accumulating electricity may be provided in the solar power generation device together with the solar cell module 100 or may be separately spaced apart from the solar cell module 100. It is provided.

As described above, the photovoltaic device having the configuration of the solar cell module 100 and the electricity generating device is disposed on the water structure 10 is installed on the water surface of the reservoir. Here, the reservoir is a natural reservoir or artificial reservoir 60, which is a structure for digging the ground or making a water tank on the ground and watering the water by storing a predetermined amount, as shown in FIGS. 4 and 5, wherein the artificial reservoir 60 is provided with water supply and drainage lines 61 and 62 for supplying and draining water, and a deposit discharge line 63 for irregularly discharging deposits and the like accumulated on the bottom surface of the reservoir.

As described above, the floating structure 10 floating on the water surface of the reservoir may be variously changed to have a polygonal or circular shape in a plate shape, and is not limited to a specific shape and shape. In a preferred embodiment of the present invention, it is preferable that the plate is made of a quadrangular shape. In addition, the solar cell module 100 disposed on the waterborne structure 10 may vary the number of installations according to the size of the waterborne structure 10.

The photovoltaic device floating on the surface of the reservoir by the water structure 10 is configured to be rotatable along the movement trajectory of the sun, and the water structure 10 is manually or controlled (not shown). Automatically controlled so that the entire solar cell module 100 installed on the water structure 10 is rotatable from east to west in accordance with the movement trajectory of the sun. That is, when the angle between the solar cell module 100 and the sun is not maintained at right angles, the amount of power generated through the solar cell module 100 is lowered. The entire structure 10 must be rotated on the surface of the water.

As shown in FIGS. 1 to 3, the rotation driving means 30 of the water structure 10 is a winch, which is a conventional winch machine provided at one side edge of the water structure 10, respectively. As provided in the winch, the first connecting line 34 made of a chain or a wire, such as a connecting member is crossed with each other and one end is fixed to the winch, the other end is extended to the bottom of the land or reservoir By being supported and fixed to the second fixing body 35 protruding onto the water surface, the winch is driven to adjust the length of the first connection line 34 so that the aquatic structure 10 rotates clockwise or counterclockwise. do. Here, the connection member is not limited to only a chain or a wire, and any connection means capable of connecting the object and the object to each other is possible.

Meanwhile, the driving method of rotating the water structure 10 using the first connection line 34 is a manual control or an automatic control method using a motor. It is to be able to directly rotate the water structure 10 while pulling or releasing.

And, the winch used in the above automatic control method is typically fixed to one side edge of the water structure 10, as shown in Figure 1, the drive to rotate through the control of a controller (not shown) And a roller 33 provided on the motor shaft 32 of the drive motor 31.

As such, the rotation drive means 30 according to the present invention pulls or releases the first connection line 34 by the control device, so that the entire water structure 10 moves in the clockwise or counterclockwise direction. It is made to be rotatable along the trajectory.

In this case, the control device collects data on the incident angle of the sunlight incident by the season to receive information on the incident angle of the sunlight from the memory stored information such as the latitude of the place where the solar generator is installed, the season based on the data The rotation angle is adjusted to the optimum position according to the change.

On the other hand, the surface floating solar cell apparatus according to the present invention, as shown in the accompanying drawings, the water surface structure is connected to the water structure 10, the bottom surface below the surface on which the water structure 10 is floating, the water structure The structural connection fixing means 20 is fixed to the horizontal direction and is supported to be variable in the vertical direction.

The structure connection fixing means 20 is made of a conventional chain or wire, the center extending to cross each other is connected through a first fixing body 22, each end is fixed to the bottom surface below the water surface It is made of a second connecting line 21 and a normal chain or wire, and is installed vertically through the through-hole 11 formed in the water structure 10 in a state connected to the intersection of the second connecting line 21 And a lifting means 24 such as a hoist provided with a winch or a winch that is installed on the third connecting line 23 and the water connecting structure 10 to pull or release the third connecting line 23 in a vertical direction. It is configured by.

In the structure connection fixing means 20 configured as described above, when the third connecting line 23 is pulled using the winch provided in the lifting means 24, the center of the second connecting line 21 is raised while the The second and third connecting lines 21 and 23 are kept firmly fixed to each other. That is, when the second and third connecting lines 21 and 23 are firmly fixed to each other by using the lifting means 24, the waterborne structure 10 on which the lifting means 24 are installed is also defined on the reservoir surface. It will remain fixed in position. Here, the through hole 11 formed in the water structure 10 may be formed at any position, but in the most preferred embodiment it is preferably located in the center of the water structure (10).

On the other hand, when the second connection line 21 of the structure connection fixing means 20 is cut off, when the water structure 10 is not fixed in place and does not implement an accurate rotation angle, the water structure 10 Auxiliary fixing for controlling the solar cell module 100 positioned above the solar cell module 100 to be fixed in position while not deviating from the movement trajectory of the sun, that is, not rotating more than 180 ° from the initial position of the sun. Means 40 are provided.

The auxiliary fixing means 40 is made of a conventional chain or wire, the fourth connecting line 44, one end of which is connected by the third fixing body 45 fixed to the bottom surface below the surface of the rotation is the rotation The other end is fixed to a winch composed of a conventional drive motor 41, a motor shaft 42, and a roller 43 provided at a predetermined position on the water structure 10 in a direction corresponding to the drive means 30. It is composed.

That is, as described above, in the normal state, when the water phase structure 10 is automatically rotated along the movement trajectory of the sun by the rotary drive means 30, do not interfere with the operation of the rotary drive stage 30. The auxiliary fixing means 40 is to perform a corresponding operation with respect to the rotation direction.

In other words, the winch of the auxiliary fixing means 40 is obstructed by the interference of each other by the control of the control device provided in the rotary drive means 30 corresponding to the drive of the winch included in the rotary drive means 30 It runs smoothly without operation.

On the other hand, in order to achieve the same effect without such an auxiliary fixing means 40 by overlapping the second connecting line 21 of the structure connecting fixing means 20 in multiple, if one strand of the second connecting line 21 is cut Even if it is possible, it is desirable to be able to perform normal driving. In addition, the first and third fixing bodies 22 and 45 are fixing means for fixing the connecting lines to the bottom surface of the reservoir, and include anchors, bars, or various shapes (H, I). It may be made of a beam of beam (beam) of.

The winch of the lift means 24 and the auxiliary fixing means 40 is adjusted through another control device so that the water structure 10 can be guided in the up and down directions according to the change in the amount of storage of the reservoir. ) And the bottom of the reservoir can be adjusted. At this time, the control device is to operate the winch of the lifting means 24 and the auxiliary fixing means 40 on the basis of the measured value measured by the depth measurement sensor (not shown), if the reservoir amount of the reservoir changes. 10) and the bottom of the reservoir can be adjusted.

On the other hand, when rolling of the water surface due to the wind while there is no change in the amount of storage of the reservoir, it is preferable to prepare for the rolling phenomenon by preventing the winch of the lift means 24 and the auxiliary fixing means 40 from being driven.

In addition, an electric generator such as a power conversion device and a storage battery of the photovoltaic device is provided to be separately managed from the solar cell module 100 on land, and is connected through a wire 103. A spherical buoyant portion so that the wiring 103 connected to the battery module 100 and the electricity generating device configured separately from the solar cell module 100 floats on the water without touching the water of the reservoir. 50 is arranged in a line, and the wiring 103 is connected to the said support part 50. As shown in FIG.

On the other hand, the temperature of the photovoltaic module 100, such as summer, the efficiency of the solar module 100 is lowered. The temperature at which the solar module 100 can generate the optimum efficiency is possible at 26 ~ 27 ℃. However, since the summer daytime temperature is close to 40 ℃, in order to improve the efficiency of the solar module has been sought to reduce the temperature of the solar module 100 or lower the ambient temperature. To this end, in the preferred embodiment of the present invention, an open slot hole 12 formed so that the surface of the reservoir and the solar cell module 100 directly face the lower portion of the solar cell module 100 arranged in a row on the water structure 10. It will be provided. When the solar cell module 100 and the water surface face through the open slot hole 12, the temperature of the solar cell module 100 is naturally lowered due to the low temperature of the water surface resistance of the current flowing therein Since the value is stable, as well as improving the power generation efficiency, it is possible to prevent the occurrence of malfunctions has the advantage of extending the life of the solar cell module 100. In addition, the falling snow can be naturally discharged through this, it is easy to discharge the snow accumulated through the fall there is an advantage that does not require snow removal work.

In addition, as shown in FIG. 6, the water structure 10 is installed, and the artificial reservoir 60 in which the storage water of a predetermined capacity is stored is provided with a cooling device 70 to lower the temperature of the storage water. . The cooling device 70 contacts air or water as a heat absorbing medium to a compressor through which a low-temperature, low-pressure gas refrigerant is compressed into a high-temperature, high-pressure gas refrigerant, and a pipe through which the high-temperature, high-pressure gas refrigerant discharged from the compressor flows. The heating fluid is brought into contact with a condenser for changing the gas refrigerant into a low-temperature, high-pressure liquid refrigerant, an expansion valve for reducing the pressure of the liquid refrigerant discharged from the condenser, and a pipe through which the low-temperature low-pressure liquid refrigerant discharged from the expansion valve flows. The temperature of the exothermic fluid is lowered, and the low temperature low pressure liquid refrigerant is configured to include an evaporator which phase changes into a low temperature low pressure gas refrigerant. By using the cooling device 70 configured as described above, the pipe 71 through which the low-temperature low-pressure liquid refrigerant flows in the evaporator is installed on a wall such as the bottom surface and the side wall surface of the artificial reservoir 60, and stored in the artificial reservoir 60. By allowing the refrigerant and the stored water to exchange heat by contacting the stored water, the temperature of the stored water of the artificial reservoir 60 is lowered. As a result, the cooling apparatus maintains the temperature of the storage water at a predetermined temperature, and naturally lowers the temperature of the solar cell module 100 through the storage water temperature set at the predetermined temperature. Therefore, since the resistance value of the current flowing inside the solar cell module 100 is stabilized, not only can the power generation efficiency of the photovoltaic device be improved, but also the malfunction of the solar cell module 100 can be prevented to extend the life of the solar cell module 100. You can do it. The liquid refrigerant used here may be one of water, alcohol, freon refrigerant, methane group refrigerant, ethane group refrigerant and self-linked refrigerant, and alternative refrigerants may be used to prevent environmental pollution. In this case, the refrigerant flowing pipe 71 is installed on the entire wall, such as the bottom surface and side wall surface of the artificial reservoir 60, or is installed on a portion of the surface is not limited by the present invention.

Hereinafter, a description will be given of the operation of the surface-floating photovoltaic device according to the present invention configured as described above.

In the waterborne structure 10 according to the present invention, the solar cell module 100 is positioned to face the south first, and the solar cell module 100 is supported by the support 102 while forming an inclined structure at a predetermined angle.

When the sun rises and the angle between the solar cell module 100 and the sun is not maintained at right angles, the amount of power generated through the solar cell module 100 is reduced, so that the water structure 10 moves toward the east where the sun rises. The whole should be rotated on the surface of the water, the operation description of the present invention will be described the automatic control method by the rotation drive means 30, that is, the winch (WINCH).

That is, the control device operates the driving motor 31 located on the water structure 10 so that the angle formed between the sun and the solar cell module 100 is close to the right angle through the winding operation of the first connection line 34. Allow the water structure 10 to rotate in one direction.

In order to operate in this way, the control device applies an operation signal to the drive motor 31 to rotate the motor shaft 32, the roller 33 is interlocked by the operation of the drive motor 31 is rotated, the roller The first connecting line 34 wound around the 33 is wound around the roller 33 and is rotated around the intersection of the second connecting line 21 as the whole of the water structure 10 is pulled on the water surface in one direction. At this time, the driving motor 31 positioned in the corresponding direction has a function of releasing the first connection line 34 so as not to interfere with the rotation of the water structure 10.

As the aquatic structure 10 is rotated along the movement trajectory of the sun, the solar cell module 100 and the sun achieve an optimal angle, and the light incident from the sun is transmitted to the solar cell module 100 to the maximum.

The optimal angle is to have an angle close to the right angle to the right angle, the power generation is made through the solar cell 101 installed in the solar cell module 100, the solar light incident from the sun, the above water structure 10 Will generate more solar power than it did at the first location.

As such, the electricity generated in the solar cell module 100 is converted into usable power, and the surplus surplus electricity is converted into an AC power which is generally used through a separate power converter to supply a power source requiring electrical energy. Supply will be made.

Therefore, in the present invention, the fixed or fixed variable photovoltaic device is installed on the water structure 10 and is fixed in place using the structure connection fixing means 20 supporting the water structure 10 from below. In, is a new surface-floating photovoltaic device configured to be able to move up and down according to the low water, and to be rotatable along the sun.

Although the above has been shown and described with respect to the preferred embodiments of the present invention, the present invention is not limited to the above-described embodiment, in the technical field to which the present invention pertains without departing from the spirit of the invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes will fall within the scope of the claims set forth.

1 is a perspective view showing an embodiment of a water surface floating photovoltaic device according to the present invention,

Figure 2 is a plan view showing a water surface floating photovoltaic device according to the present invention,

3 is a cross-sectional view showing a surface-mounted photovoltaic device according to the present invention,

Figure 4 is a plan view showing another embodiment of the surface floating photovoltaic device according to the present invention,

Figure 5 is a cross-sectional view showing another embodiment of the surface-mounted photovoltaic device according to the present invention,

6 is a cross-sectional view showing yet another embodiment of the surface-floating photovoltaic device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: water structure 11: through hole

12: open slot hole 20: structure connection fixing means

21: second connecting line 22: first fixing body

23: third connecting line 24: lifting means

30: rotation drive means 31: drive motor

32: motor shaft 33: roller

34: first connecting line 35: second fixing body

40: auxiliary fixing means 41: drive motor

42: motor shaft 43: roller

44: fourth connecting line 45: third fixing body

50: buoyant 60: artificial reservoir

61: water supply line 62: drainage line

63: sediment discharge line 70: cooling device

71: piping

Claims (11)

In the surface floating solar power generation apparatus, which floats on the surface and is rotatable and includes a solar cell module for converting light energy radiated from the sun into electrical energy. An aqueous structure in which the solar cell module is disposed and having a through hole; A structure connection fixing means connected to the water structure on the bottom surface of the water surface in which the water structure is floated so as to be fixed in the horizontal direction and to be variable in the vertical direction; And It is installed on the water structure includes a rotation drive means for rotating the position of the water structure to the optimum position along the movement trajectory of the sun by the control device, The structure connection fixing means may include a second connecting line formed of a connecting member, the centers of which are extended to cross each other and connected through a first fixing body in which each end is fixed to the bottom surface under the water surface; A third connecting line made of a connecting member and vertically installed through the through hole formed in the water structure in a state of being connected to an intersection point of the second connecting line; And The water surface floating photovoltaic device is installed on the water structure, characterized in that consisting of a lifting means for pulling or releasing the third connecting line in the vertical direction. delete The method of claim 1, The rotary drive means is provided on each side of the edge of the water structure winding device for generating a rotational driving force; And It is made of a connecting member, one end is connected to each other in the hoisting machine, the other end is a water surface injury characterized in that it comprises a first connecting line connected to a second fixed body supported on the bottom of the land or reservoir Solar power device. The method of claim 1, The water surface portion further comprises an auxiliary fixing means which is provided on the water structure in the direction corresponding to the rotation drive means so that the solar cell module can be fixed in place while the solar cell module does not leave the movement trajectory of the sun. Common sense photovoltaic device. The method of claim 4, wherein The auxiliary fixing means is provided on the lifting structure for generating a rotary drive force; And It is made of a connecting member, one end is connected to the hoisting machine, the other end is a water surface floating photovoltaic power generation, characterized in that it comprises a fourth connecting line connected to the third fixed body fixed to the bottom surface below the water surface Device. The method of claim 1, Sleeping floating solar power generation device, characterized in that the supporting portion is provided so that the wire connected to be applied to the electricity generation device provided on the land generated in the water structure. The method of claim 1, The floating structure is a water surface floating photovoltaic device characterized in that it is provided with an open slot hole made to face the water surface of the reservoir and the solar cell module directly. The method of claim 1, The water floating structure is a water surface floating photovoltaic device, characterized in that installed in at least one of the artificial reservoir or the natural reservoir consisting of a water tank capable of storing a certain amount of water by water supply. The method of claim 8, The artificial reservoir is a surface floating photovoltaic device characterized in that it comprises a supply, drain line for supplying and draining water, and a sediment discharge line for discharging the sediment accumulated on the bottom surface of the reservoir. The method of claim 9, The artificial reservoir is a surface floating solar power generation device, characterized in that the cooling device is installed to lower the temperature of the stored water. The method of claim 10, The cooling device is installed on the wall of the artificial reservoir, the surface floating solar power generation device, characterized in that it comprises a pipe through which the refrigerant flows heat exchanged with the storage water of the artificial reservoir.

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