KR20190111670A - Sunlight structure for water surface - Google Patents

Abstract

The present invention relates to a water sunlight structure comprising: a sunlight panel collecting sunlight to convert the sunlight into electrical energy; a panel support unit formed to support the sunlight panel; and a horizontal maintaining device formed to be connected to the panel support unit to allow the sunlight panel to maintain horizontality in the water.

Description

Floating Solar Structures {Sunlight structure for water surface}

The present invention relates to a water-based photovoltaic structure, and more particularly, to a structure capable of generating solar power by floating in the water.

Currently, land photovoltaic power generation in Korea has difficulty in finding installation sites due to various land use regulations, and demand for floating photovoltaic power generation that can compensate for these disadvantages is increasing.

Large scale water photovoltaic power generation can be stably generated due to its weight and size, and small scale photovoltaic power generation has a low power generation efficiency.

Since solar panels generate different amounts of power depending on the angle at which sunlight is received, methods for maintaining the optimal angle and minimizing surface shake are increasing power generation efficiency.

Conventional water photovoltaic power generation has a frame-type fixed on the surface of the water surface and buoyancy-integrated small-scale water photovoltaic generator floating on the water surface. Frame type solar photovoltaic power generation has high structural stability and good power generation efficiency, but has high construction cost and has a problem in that the support is distorted due to the water surface over time. In addition, buoyancy-integrated floating solar power generation is low in construction cost, light in weight, and as an independent module, it moves fluidly under the influence of the water surface, and does not affect other modules, but it moves in accordance with the water surface movement, resulting in low power generation efficiency and structural There is a problem of low stability.

The present invention is to solve a number of problems, including the above problems, it is possible to increase the power generation efficiency to the maximum by minimizing the rotation and movement in accordance with the shaking on the water surface, to provide a low-cost installation of a photovoltaic device It aims to do it. However, these problems are exemplary, and the scope of the present invention is not limited thereby.

According to one aspect of the present invention, a water-based photovoltaic device is provided. The water photovoltaic device, the solar panel for condensing sunlight into electrical energy; A panel support formed to support the solar panel; And a horizontal holding device connected to the panel support so that the solar panel is horizontal in the water phase.

In the water photovoltaic device, the panel support portion, the body portion formed in the shape of a disk or polygonal plate; And a neck portion connecting the solar panel and the body portion.

In the above-mentioned solar cell apparatus, the horizontal holding device has a panel support accommodating portion capable of accommodating the panel support therein, and is rotated about the panel support with respect to a first axis passing horizontally through the panel support. A first frame formed to be possible; And a first frame accommodating part configured to accommodate the first frame therein, the first frame accommodating part being formed to be rotatable with respect to the first frame about a second axis penetrating the first frame horizontally, and having buoyancy. It may include a second frame.

The water photovoltaic device may include: a first connection part connecting the panel support part and the first frame at both sides of the panel support part about the first axis; And a second connection part connecting the first frame and the second frame at both sides of the first frame with respect to the second axis.

In the water photovoltaic device, the panel tilt adjustment unit is formed on the panel support to adjust the inclination of the solar panel in a central axis in the direction parallel to the water surface according to the movement of the sun; can do.

In the water-based photovoltaic device, the panel rotating unit is formed on the panel support so that the solar panel can rotate left and right in the central axis in the direction perpendicular to the water surface according to the movement of the sun.

In the water-based photovoltaic device, a storage battery for storing the electricity generated by the concentrated in the solar panel; may further include.

In the water photovoltaic device, a connection portion formed on one side of the leveling device to connect a plurality of the leveling device; may further include.

According to one embodiment of the present invention made as described above, the installation cost is low, the power generation efficiency is high by applying the gyroscope principle to buoyancy-integrated water-based photovoltaic power generation with low construction cost but low structural stability Can be provided. Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view showing a water-based photovoltaic device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a water-based photovoltaic device according to an embodiment of the present invention.
3 is a rear view of the water photovoltaic device according to another embodiment of the present invention.
4 is a side view showing a water photovoltaic device according to another embodiment of the present invention.
5 is a perspective view showing a water-based photovoltaic device according to another embodiment of the present invention.
Figure 6 is a side view showing a water-based photovoltaic device according to another embodiment of the present invention.
7 is a configuration diagram showing a connection portion of the water-based photovoltaic device according to another embodiment of the present invention.
8 is a front view illustrating the connection of the water-based photovoltaic device according to another embodiment of the present invention.
9 is a graph showing the amount of power according to the angle of the water photovoltaic device.
10 is a photograph showing that the model of the stationary water solar device was tested.
It is a photograph which shows the experiment of the model of the water photovoltaic device of this invention.

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

The embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art, and the following examples can be modified in various other forms, and the scope of the present invention is It is not limited to an Example. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In addition, the thickness or size of each layer in the drawings is exaggerated for convenience and clarity of description.

Throughout the specification, when referring to one component, such as a film, region or substrate, being positioned on, "connected", "stacked" or "coupled" to another component, said one configuration It may be interpreted that an element may be in direct contact with, or “coupled to”, “stacked” or “coupled” another component, or that there may be further components interposed therebetween. On the other hand, when one component is said to be located on another component "directly on", "directly connected", or "directly coupled", it is interpreted that there are no other components intervening therebetween. do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

FIG. 1 is a perspective view illustrating an aquatic photovoltaic device 100 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the aquatic photovoltaic device 100 according to an embodiment of the present invention.

First, as shown in FIGS. 1 and 2, the water-based photovoltaic device 100 according to an embodiment of the present invention includes a solar panel 10, a panel support 20, and a horizontal holding device 30. It may include.

The solar panel 10 converts sunlight into electrical energy, and one or more solar cell modules are connected to each other in series or in parallel to be formed in an outer frame, and the solar cell module further includes a plurality of small unit cells in series. Or may be connected in parallel.

Specifically, the solar panel 10 is a device for converting light energy of sunlight into electrical energy, using a P-type semiconductor and an N-type semiconductor, and when light shines, holes and electrons are generated inside. do. At this time, holes move toward the P-type semiconductor, electrons move toward the N-type semiconductor, and a potential difference (photovoltaic power) is generated between the P and N poles, and when a load is connected to the solar panel 10, current flows. .

The solar panel 10 may use a silicon semiconductor or a compound semiconductor as a material, and the silicon panel is classified into a crystalline system and an amorphous system. Currently, silicon semiconductors are generally used as solar power generation systems, and single crystal and polycrystalline solar cells of crystalline silicon semiconductors are widely used because of their high conversion efficiency and high reliability, but the present invention is not limited thereto.

The panel support part 20 is formed to support the solar panel 10, and may include a body part 22 formed in a disc shape or a polygonal plate shape and a neck part 21 connecting the solar panel and the body part. Can be.

The panel support 20 may be a device for fixing the solar panel 10 formed in a planar shape to face the sunlight. At this time, the solar panel 10 may be formed directly on the body portion 22 that can support the solar panel 10, and adjust the angle of the solar panel 10 and the solar light to enable rotation It may be formed on the neck 21 formed in the body portion 22 for controlling the panel 10.

The configuration for adjusting and rotating the angle of the solar panel 10 will be described later.

As shown in FIG. 2, the leveling device 30 may be formed by being connected to the panel support 20 so that the solar panel 10 may be level in the water phase. The first connector 32, the second frame 33, and the second connector 34 may be included.

The first frame 31 has a panel support accommodating portion for accommodating the panel support 20 therein, and the rotation of the first frame 31 is rotated with respect to the panel support 20 about the first axis passing horizontally through the panel support 20. It may be formed to be possible.

The first frame 31 may be formed in a cylindrical shape through which the inside is penetrated, and may be formed in a shape capable of accommodating the panel support 20 therein. In this case, the panel support 20 accommodated in the first frame 31 may be spaced apart from each other so as to be rotatable with respect to the first frame 31.

For example, the panel support 20 may have a cylindrical shape, and shaft holes formed in a first direction may be formed at both sides of the outer surface of the panel support 20, and the shaft holes may face the center of gravity of the panel support 20. In addition, the panel support 20 may be formed above the center of the side surface.

The first frame 31 has a cylindrical shape, and shaft holes formed in the same direction as the shaft holes of the panel support part 20 may be formed at both sides of the inner surface of the first frame 31, and the shaft holes of the panel support part 20 may be formed. The shaft hole of the first frame 31 may be connected to the first connection part 32.

That is, the first connection part 32 may connect the panel support part 20 and the first frame 31 on both sides of the panel support part 20 about the first axis.

The shaft holes formed on both sides of the outer surface of the panel support part 20 and the shaft holes formed on both sides of the inner surface of the first frame 31 are formed with the same first axis, and may be formed, for example, in the X-axis direction.

When the first frame 31 is shaken at a wavelength having the X axis in the advancing direction due to external influences, the panel support 20 may be fixed without being shaken about the X axis.

The shaft holes formed on both sides of the outer surface of the panel support portion 20 and the shaft holes formed on both sides of the inner surface of the first frame 31 have a bearing so that they can rotate while supporting the load of the panel support portion 20 and the first frame 31. It may further include.

The second frame 33 has a first frame accommodating part for accommodating the first frame 31 therein, and the first frame 31 about a second axis passing horizontally through the first frame 31. It is formed to be capable of rotating with respect to, and can be formed with buoyancy.

The second frame 33 may be formed in a cylindrical shape through which the inside is penetrated, and may be formed in a shape capable of accommodating the first frame 31 therein. In this case, the first frame 31 accommodated in the second frame 33 may be spaced apart from each other so as to be rotatable with respect to the second frame 33.

The second frame 33 may have a buoyancy force to receive the first frame 31 and the panel support part 20 that supports the solar panel 10 and to float on the surface of the second frame 33.

For example, the first frame 31 may have a cylindrical shape, and shaft holes may be formed at both sides of an outer surface of the first frame 31 in a second direction, and the shaft hole may have a center of gravity of the first frame 31 below. It may be formed above the center of the side of the first frame 33 to be directed to.

As another example, the first frame 31 formed in a cylindrical shape is formed in a convex shape so that the side center portion of the first frame 31 is convex, so that the first frame 31 can be rotated with respect to the second frame 33. The first frame accommodating part may be formed to correspond to this.

The second frame 33 has a cylindrical shape, and shaft holes formed in the same direction as the shaft holes of the first frame 31 may be formed on both inner surfaces of the second frame 33, and the shaft of the first frame 31 may be formed. The ball and the shaft hole of the second frame 33 may be connected to the second connection portion 34.

That is, the second connector 34 may connect the first frame 31 and the second frame 33 at both sides of the first frame 31 about the second axis.

The shaft holes formed on both sides of the outer side of the first frame 31 and the shaft holes formed on both sides of the inner side of the second frame 33 are formed with the same second axis, and may be formed, for example, in the Y-axis direction.

When the second frame 33 is shaken at a wavelength in the Y-axis direction due to external influences, the panel support 20 and the first frame 31 may be fixed without being shaken about the Y-axis.

The shaft holes formed on both sides of the outer side of the first frame 31 and the shaft holes formed on both sides of the inner side of the second frame 33 can rotate while supporting the load of the first frame 31 and the second frame 22. It may further include a bearing.

3 to 8, the water photovoltaic device according to various embodiments of the present invention further includes a panel tilt adjusting unit 40, a storage battery 50, a panel rotating unit 60, and a connecting unit 70. can do.

3 is a rear view of the water photovoltaic device 110 according to another embodiment of the present invention, and FIG. 4 is a side view.

As shown in FIGS. 3 and 4, the panel tilt controller 40 adjusts the tilt of the solar panel 10 in a central axis in a direction parallel to the surface of the solar panel according to the movement of the sun. It may be formed in the panel support 20 so that.

The panel inclination adjustment unit 40 may adjust the inclination angle of the solar panel 10 so that the solar panel 10 may have an angle of incidence of the solar light and the solar panel may be at a right angle to produce maximum power to increase production efficiency. have.

The panel tilt controller 40 may control the angle of the solar panel 10 in the panel support 20 to correct the change in the position of the sun according to the rotation or revolution of the earth.

5 is a perspective view showing the water photovoltaic device 120, 130 according to another embodiment of the present invention, Figure 6 is a side view.

As illustrated in FIGS. 5 and 6, the panel rotating unit 60 may be formed on the panel support unit 20 so that the solar panel may rotate left and right about the center axis perpendicular to the water surface as the sun moves. .

The panel rotating unit 60 may increase the production efficiency by rotating the solar panel 10 along the sun moving by the rotation of the earth.

The panel rotating part 60 may be formed at a lower portion of the panel support 20 so as to move along the sun appearing from one side and disappearing to the other side based on the water photovoltaic device 120.

The panel tilt control unit 40 and the panel rotating unit 60 vertically move the solar panel 10 so that the sunlight can enter the solar panel 10 vertically along the position of the sun depending on the rotation or revolution of the earth. Can be controlled left and right.

At this time, in order to control the solar panel 10 may further include a sensor for sensing the position of the sun, such as a tilt sensor, compass sensor, optical sensor.

As illustrated in FIGS. 5 and 6, the storage battery 50 may store electricity generated by focusing the solar panel.

The storage battery 50 may store electric power generated by the solar panel 10 in order to use the electric energy focused and converted by the solar panel 10 even when the solar panel 10 does not operate.

The storage battery 50 is composed of a positive and negative electrode plate and an electrolyte solution, and can generate a direct current electromotive force by a chemical action to be used as a power source.

There are various types of storage battery 50, such as lead acid battery, lithium battery, nickel-hydrogen battery, nickel cadmium battery, etc. In general, a low cost lead acid battery is used in medium and large sized solar cells, but the present invention is not limited thereto. Do not.

FIG. 7 is a configuration diagram illustrating a connection part 70 of the water photovoltaic device according to another embodiment of the present invention, and FIG. 8 is a front view illustrating the connection of the water photovoltaic devices 100 and 100 ′.

As shown in FIG. 7 and FIG. 8, the connection part 70 may be formed at one side of the leveling device 30 so as to connect the plurality of leveling devices 30.

The connection part 70 may be formed at one side of the water photovoltaic devices 100 and 100 ′, and connect the plurality of water photovoltaic devices 100 and 100 ′. At this time, the connection portion 70 formed on one side of the water photovoltaic device 100 and the connection portion 70 formed on one side of the other water photovoltaic device 100 'are rotated about an axis perpendicular to the axis horizontal to the water surface. This can be formed to be possible.

The aquatic photovoltaic device 100 and the other aquatic photovoltaic device 100` can move left and right about an axis perpendicular to the water surface, and the aquatic photovoltaic device 100 and the other aquatic sun around the axis horizontal to the water surface. Even if the optical device 100 ′ shakes on the surface of the optical device 100 ′, there may be no limitation of movement.

Although not shown, the connection portion 70 may be rotated in the aquatic photovoltaic device to connect the plurality of aquatic photovoltaic devices, and may be formed to be detachably assembled.

Hereinafter, an experimental example to which the above-described technical concept is applied will be described to help understanding of the present invention. However, the following experimental examples are only for helping understanding of the present invention, and the present invention is not limited to the following experimental examples.

Experimental Example

[Table 1] is a table showing the maximum amount of power according to the angle of the solar panel of the photovoltaic device, Figure 9 is a graph showing the amount of power according to the angle of the water phase photovoltaic device.

For the experiment of measuring the amount of solar power according to the angle using the module simulator, a module simulator, a solar panel, a measuring device was prepared, and impurities on the surface of the module simulator were removed for accurate experiments.

The module condition formed on the solar panel is 6 inches in cell size, 60 cells in number, and cell type is the conclusion crystal. Imp, Vmp when the module angle is 0 degree, 5 degree, 10 degree, 15 degree and 20 degree Pmp values were derived.

Module angle (degrees) 0 5 10 15 20 Temperature 19.3 19.7 19.6 19.7 19.7 Isc (A) 9.347 9.04 9.087 8.957 8.545 Imp (A) = Ipm 8.832 8.653 7.728 7.391 6.199 Voc (V) 39.869 39.825 39.781 39.749 39.605 Vmp (V) = Vpm 31.575 31.51 33.173 33.395 33.895 Pmp (W) 278.8704 272.656 256.3609 246.8224 210.1151

Here, Voc is a voltage value when the current is 0, Vmp: a voltage value at the maximum power point, Isc is a current value when the voltage is 0, and Imp is a current value at the maximum power point.

When [Table 1] is shown as a graph, it appears as shown in FIG.

Subsequently, when there was shaking of the water surface of the water-based solar model and the fixed water-based solar model of the present invention, the angle between the horizontal line and the solar panel was compared.

Experimental method, after filling the fixed water solar model and the water-based solar model of the present invention after filling the tank of water, using a dryer to move the surface of the water and then photographed the motion of the model. The angle of the water surface and the panel was measured by capturing the captured video, and the fixed water solar model was compared with the water solar model of the present invention.

10 and 11 are photographs showing experiments with a model of the stationary water solar device and a model of the water solar device of the present invention.

Experimental results showed that the maximum angle change of the fixed water solar model was about 20 degrees as shown in FIG. 10, and the water solar model of the present invention was about 5 degrees as shown in FIG.

In summary, since the maximum power at 0 degrees is 278.8704W, the power at 20 degrees, which is the maximum angle change of the fixed water photovoltaic model, is 210.115W, which is 75.35% of the maximum power, and the water photovoltaic model of the present invention. The power at 5 degrees, which is the maximum angle change of, is 272.656W, which is 97.77% of the maximum power, indicating that the water-based solar model of the present invention can obtain about 22% more power than the fixed water-based solar model.

The present invention has a different angle to produce the most amount of power according to the season and time, the water-based solar device of the present invention can increase the efficiency by maintaining the maximum angle that can generate the most power.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10 solar panel
20 panel support
21: the neck
22: body
30: leveling device
31: the first frame
32: first connection
33: second frame
34: second connection portion
40: panel inclination adjustment unit
50: storage battery
60: panel rotating part
70: connection portion 70
100, 110, 120, 130: water photovoltaic device

Claims (8)

A solar panel that focuses sunlight and converts it into electrical energy;
A panel support formed to support the solar panel; And
A horizontal holding device connected to the panel support so that the solar panel is horizontal in the water phase;
Including, the water photovoltaic device. The method of claim 1,
The panel support portion,
A body portion formed in a disc shape or a polygonal plate shape; And
A neck portion connecting the solar panel and the body portion;
Including, the water photovoltaic device. The method of claim 1,
The leveling device,
A first frame formed inside the panel support accommodating part for accommodating the panel support part, the first frame being rotatable with respect to the panel support part about a first axis penetrating the panel support part horizontally; And
A first frame accommodating part configured to accommodate the first frame therein, the first frame accommodating part being formed to be rotatable with respect to the first frame about a second axis penetrating the first frame horizontally, and having a buoyancy force 2 frames;
Including, the water photovoltaic device. The method of claim 3, wherein
The leveling device,
A first connection part connecting the panel support part and the first frame at both sides of the panel support part about the first axis; And
Second connection parts connecting the first frame and the second frame to both sides of the first frame about the second axis;
Further comprising, the water photovoltaic device. The method of claim 1,
A panel inclination controller formed on the panel support unit to adjust the inclination of the solar panel with a central axis in a direction parallel to the surface of the solar panel according to the movement of the sun;
Further comprising, the water photovoltaic device. The method of claim 1,
A panel rotating part formed on the panel supporting part so that the solar panel rotates left and right along a central axis in a direction perpendicular to the water surface according to the movement of the sun;
Further comprising, the water photovoltaic device. The method of claim 1,
A storage battery for storing electricity generated by the solar panel;
Further comprising, the water photovoltaic device. The method of claim 1,
A connection part formed at one side of the leveling device to connect the plurality of leveling devices;
Further comprising, the water photovoltaic device.

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