KR101953980B1 - Solar tracking floating power generation system - Google Patents

Abstract

A solar tracking floating power generation system is disclosed. The solar light tracking floating power generation system according to an embodiment of the present invention includes a solar cell module on one side and a waterproof member on the other side to float on the water surface, A solar cell unit provided with a plurality of solar cell units, a frame formed to surround the plurality of solar cell units, at least one propeller provided at a lower portion of the frame, for rotating the solar cell unit suspended in the water surface in a predetermined direction, And a control unit for selectively driving the propeller unit to track sunlight while rotating the solar cell unit in a predetermined direction in accordance with the movement of the sun.

Description

[0001] Solar tracking floating power generation system [0002]

The present invention relates to a solar-power tracking floating power generation system, and more particularly, to a system for performing solar power generation by floating a solar cell unit on a water surface, a propeller (for example, a ship propeller) So that the sunlight can be easily tracked even in a floating solar power generation system.

Recently, as concerns about environmental problems and energy depletion have increased, there is a growing interest in the development of solar energy as a substitute for energy that is rich in energy resources, has no problems with environmental pollution, and has high energy efficiency.

Solar power generation can be divided into solar power generation, which generates the steam needed to rotate the turbine using solar heat, and solar power generation, which converts solar photons to electrical energy using the properties of semiconductors. Among them, researches on solar power generation that convert light energy into electrical energy by absorbing light and generating electrons and holes are actively conducted.

The photovoltaic power generation system is a collection of solar cell modules in which a plurality of solar cell modules are connected in series or in parallel. Conventional solar power generation systems are usually installed on land. In this case, the environment is destroyed because it is mainly used as a solar power generation site by cutting the mountains. In addition, when installed on the land, the solar modules are heated due to high temperature or geothermal heat in summer, And the power generation efficiency of the solar cell module is lowered.

In order to solve such a problem, the technical idea about floating-type solar power generation in which solar cell modules are installed in water such as a lake, a river, a pond, a river, and a dam is widely known.

Also, in solar power generation, the incidence angle at which sunlight enters the solar cell module greatly affects power generation efficiency. Accordingly, in the case of the photovoltaic power generation system installed on the land, the technical idea of rotating the angle of the solar cell module by tracking the position of the sun according to the passage of time is spreading.

However, in the case of floating solar power generation, the solar cell module floats on the surface of the water, and it is relatively difficult to rotate the solar cell module depending on the position of the sun as well as the position of the solar cell module.

Conventionally, in order to track the sunlight in the floating solar photovoltaic power generation system, very complicated equipment is required, which results in an increase in installation and maintenance costs, resulting in a problem of inefficiency.

Therefore, it is possible to effectively rotate the solar cell modules (solar cell units) floating on the surface with a simple facility, thereby greatly improving the efficiency of the solar power generation and reducing the installation, maintenance and management costs. Is required.

Registered patents in Korea (Registration No. 10-1171000, "Solar Tracking Concentrator"

SUMMARY OF THE INVENTION It is an object of the present invention to provide a propeller (for example, a ship propeller) provided on a lower surface of a solar battery unit floating on a water surface and allowing a solar cell unit to be easily rotated by the power of a propeller driven in water, It is to provide a technical idea that enables simple equipment to track sunlight in a floating power generation system.

According to an aspect of the present invention, there is provided a solar-powered floating power generation system including a solar cell module on one surface thereof, a waterproof member formed on the other surface thereof, A plurality of solar cell units provided so as to surround the plurality of solar cell units, a solar cell unit provided with a frame formed so as to surround the plurality of solar cell units, a solar cell unit formed below the frame, And a control unit for selectively driving the propeller unit to track sunlight while rotating the solar cell unit in a predetermined direction in accordance with the movement of the sun.

The propeller section also includes at least one first direction propeller for rotating the frame in a first direction and at least one second direction propeller for rotating the frame in a second direction different from the first direction .

The first direction propeller may further include a first propeller and a second propeller each formed to be symmetrical to a lower edge of the frame, wherein the at least one second direction propeller includes a first propeller and a second propeller, A third propeller and a fourth propeller, which are respectively positioned to intersect the propeller and are respectively formed to be symmetrical to each other at a lower edge of the frame.

The control unit may drive the first direction propeller to rotate the solar cell unit in the first direction so as to correspond to the movement of the sun during a first time during which solar power generation is possible, The solar cell unit may be rotated in the second direction during at least a part of the rotation of the solar cell unit to return the solar cell unit to the same position before rotation in the first direction and within a predetermined range.

In addition, the controller may periodically drive the propeller unit for a predetermined time with a constant output for a predetermined unit time to rotate the solar cell unit.

In addition, the solar tracking floating power generation system may further include a guard part formed to surround the solar cell part and floating on the water surface to prevent the solar cell part from departing.

In addition, the solar tracking floating power generation system may further include a fixing unit installed on the ground, connected to the guard unit, and fixing the guard unit to the water surface within a predetermined range.

The solar cell unit may include at least one solar cell unit provided at one side so as to be inclined at a predetermined angle in a direction opposite to the plurality of solar cell units, Of the windward units.

The plurality of solar cell units may be arranged such that the plurality of solar cell units are inclined by a predetermined angle in a specific direction, and a part of one of the plurality of solar cell units is arranged at a predetermined angle And a windward unit which is inclined by a predetermined angle.

According to the technical idea of the present invention, a propeller (for example, a ship propeller) is provided on the lower surface of a solar cell floating on a water surface, and the solar cell can be easily rotated by the power of a propeller driven in water, It has the effect of tracking sunlight in a floating power generation system.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
Figures 1 and 2 schematically illustrate a solar tracking suspended power generation system in accordance with an embodiment of the present invention.
3 schematically shows a sub-structure of a solar tracking suspended power generation system according to an embodiment of the present invention.
4 is a view showing examples of cross sections of a solar cell unit of a solar tracking floating power generation system according to an embodiment of the present invention.
5 is a view showing an example of a solar cell unit of a solar photovoltaic floating generation system according to an embodiment of the present invention.
6 is a view illustrating an example of a first connection part in a solar tracking floating power generation system according to an embodiment of the present invention.
7 is a view showing another example of the first connection portion in the solar tracking floating power generation system according to the embodiment of the present invention.
8 is a view showing an example of the case where the solar cell unit of the solar tracking floating power generation system according to the embodiment of the present invention includes the shock absorbing member.
9 and 10 are views for explaining windshield units of a solar tracking floating power generation system according to an embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

The terms first, second, etc. in this specification may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Also, in this specification, the terms " comprises " or " having ", and the like, specify that the presence of stated features, integers, But do not preclude the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

In the following description, a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Hereinafter, the present invention will be described in detail with reference to the embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 1 and FIG. 2 schematically show a solar tracking floating power generation system according to an embodiment of the present invention, and FIG. 3 schematically shows a lower structure of a solar tracking floating power generation system according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the solar-light tracking floating power generation system 1 according to the embodiment of the present invention includes a solar cell module on one side, a water-proof member on the other side, A solar cell unit 100 having a plurality of solar cell units 110 installed to be connected to each other and a frame 120 formed to surround the plurality of solar cell units 110, And at least one propeller (for example, 10-1, 10-2, 20-1, 20-2) for rotating the solar battery unit 100 floated on the water surface in a predetermined direction And a control unit (not shown) for selectively driving the propeller unit to track sunlight while rotating the solar battery unit 100 in a predetermined direction according to the movement of the sun.

The control unit and / or the propeller unit may receive energy required for driving through a separate external power source, but may receive a part of the electric energy generated and generated by the solar tracking floating power generation system 1 .

According to an example, the plurality of solar cell units 110 may be connected through a first connection unit 130, respectively.

Also, according to an embodiment, the plurality of solar cell units 110 and the frame 120 may be connected to each other through the first connection unit 130. In this case, according to the technical idea of the present invention to be described later, when the propeller unit formed at the lower part of the frame 120 is driven, the frame 120 rotates and the sun, including the plurality of solar cell units 110, The whole battery unit 100 can rotate together.

According to another embodiment, the solar tracking floating power generation system 1 is formed so as to surround the solar cell unit 100 as shown in FIG. 1, and floats on the surface of the solar cell 100 And / or at least one ground connection (not shown) for connecting the guard part 200 to the ground and fixing the guard part 200 on a surface within a predetermined range, And may further include a fixing portion 300. At this time, the guard part 200 and the fixing part 300 may be connected to each other through the second connection part 310. This will be described later.

As described above, in general, when solar power generation is performed by floating a solar cell module on a water surface, the angle or position of the solar cell module fluctuates according to the movement of the water surface in the water surface, It is not easy to track the sunlight according to the wavelength. Conventionally, in such a floating-type solar photovoltaic power generation system, there are many cases in which a plurality of solar cell modules are installed in a predetermined plate-like base structure, and the solar cell is rotated by applying power to the base structure itself. In this case, the base structure or its complexity requires a lot of cost and complex equipment, and the heavy weight may cause a large amount of energy (power) to be consumed for rotation.

However, according to the technical idea of the present invention, efficient solar tracking can be achieved even in a floating power generation system by relatively simple structure and operation. For example, according to the embodiment of the present invention, each of the solar cell units 110 floats on its own surface, and the frame 120 surrounding the solar cell unit 110 also floats on the water surface, (130). As shown in FIG. 3, a propeller unit including at least one propeller (for example, 10-1, 10-2, 20-1, and 20-2) is provided below the frame 120, The tracking floating power generation system 1 can be implemented.

According to one embodiment, the at least one propeller (e.g., 10-1, 10-2, 20-1, 20-2) may be implemented as a ship propeller or a screw used in a ship, And may be implemented with any type of propeller or screw that can be driven in water and generate propulsion.

The day can be divided into a day in which the sun is largely floating (hereinafter, referred to as a first time) and a night in which the sun is in a nighttime (hereinafter referred to as a second time) .

For example, although it is variable depending on the season or weather conditions, it is generally about 10 to 12 hours from sunrise (e.g., from 6:00 am to 8:00 am) to sunset (e.g., 6:00 pm to 8:00 pm) It may be the first time that solar power generation can be performed.

The first time may be at least about 10 hours even in the winter season, unless it is a rainy or cloudy weather condition.

Then, the solar power generation system tracks sunlight while rotating at a predetermined speed or a predetermined cycle for the first time. This range of rotation is rotated with a rotation angle of about 180 degrees (i.e., from sunrise direction (east) to sunset direction (west)) for about 10 hours to 12 hours. And, when the sun moves during this first time, there is no need to demand very precise control of the rotation of the solar battery 100 for tracking sunlight. That is, if it is rotated only by a rotation angle within a certain range for a certain range of unit time, it may be sufficient to track the sunlight.

Therefore, the present invention can easily realize the rotation of the solar battery unit 100 in the floating power generation system by forming the propeller unit in the lower part of the solar battery unit 100 floating on the water surface and by the propeller driven in water.

Referring to FIG. 3, in the solar light tracking floating power generation system 1 according to the embodiment of the present invention, a propeller unit may be formed on the lower surface of the solar cell unit 100 as described above.

According to one embodiment, the propeller unit may be formed on a lower surface of the frame 120.

At this time, the propeller unit includes at least one first direction propeller (for example, 10-1, 10-2) for rotating the solar battery unit 100 in the first direction, and at least one first direction propeller And a second direction propeller (e.g., 20-1, 20-2) for rotating in a second direction different from the direction of the first direction propeller.

As shown in the drawing, the first direction propeller may include a first propeller 10-1 and a second propeller 10-2, which are respectively formed to be symmetrical to each other at a lower edge of the frame 120 The second propeller 10-1 and the second propeller 10-2, and the third propeller 10-1 and the second propeller 10-2, respectively, A propeller 20-1 and a fourth propeller 20-2.

For example, when the frame 120 is configured to have a rectangular shape as shown in the drawing, the first direction propeller and the second direction propeller may be located at each vertex of the frame 120. Of course, the first direction propeller and the second direction propeller may be located on the respective sides of the frame 120 according to the embodiment, and the position may be changed according to the shape of the frame 120. [ For example, if the frame 120 is implemented in a circular shape, the first direction propeller is respectively at 12 o'clock and 6 o'clock direction of the frame 120, and the second direction propellers are respectively at 3 o'clock and 9 o'clock Lt; / RTI > direction.

Hereinafter, the case where the frame has a rectangular shape as a whole and the first direction propeller and the second direction propeller are respectively formed at the respective vertexes of the frame 120 will be described as an example, The present invention is not limited thereto.

In any case, the first direction propeller is driven at both ends of the frame (120) or the solar battery unit (100) and rotates the solar battery unit (100) in the first direction, and the second direction propeller It is possible to drive the solar cell unit 100 in the second direction by being driven at both ends of the frame 120 or the other direction of the solar cell unit 100.

In this specification, for convenience of explanation, the first direction is described as a counterclockwise direction and the second direction is as a clockwise direction, but the present invention is not limited thereto. For example, the first direction may mean a direction in which the sunlight tracking floating power generation system 1 is installed, the direction in which the sun moves from the sunrise direction to the sunset direction due to characteristics of the location and direction, Direction may mean a direction opposite to the first direction.

Meanwhile, the controller controls the first propeller (10-1) and the second propeller (10-2) by driving the first direction propeller (10-1) and the second propeller Can be rotated in the first direction.

For example, the control unit may drive the first propeller (10-1) and the second propeller (10-2) at a constant output for a predetermined unit time during the first time have. For example, the control unit may control the first propeller 10-1 and the second propeller 10-2 to rotate for a predetermined time (for example, 5 minutes or 10 minutes) Seconds, 10 seconds, etc.).

Alternatively, the control unit senses the amount of light that changes as the incident angle of sunlight changes over time, and detects the amount of light that is changed by the first propeller 10-1 and the second propeller 10-2, Or not. In this case, the control unit may include a predetermined sensor system for sensing the amount of sunlight.

On the other hand, in the second time (for example, at night) where the solar power generation is impossible, it is necessary to reorient the direction of the solar cell unit 110 which is rotated for the first time while looking in the sunset direction again in the sunrise direction .

For this purpose, the control unit controls the second propeller 20-1 and the fourth propeller 20-2 to drive the solar battery 100 during the second time, So that the solar battery unit 100 can be returned to its original position.

At this time, when the solar battery unit 100 is returned to its original position, the direction of the solar battery unit 100 does not mean a position exactly the same as that before sunrise and rotation. The solar cell unit 100 is oriented in the sunrise direction toward the sunset direction by tracking the sunlight during the first time period, and the solar cell unit 100 is rotated before the solar cell unit 100 rotates in the first direction and within a predetermined range In a similar position. In the following description, it can be expressed that the data is restored to the same position within a predetermined range.

According to another embodiment, the propeller portion may not include both the first direction propeller and the second direction propeller, and may have only a first direction propeller identical to the direction of the sun.

In this case, the control unit may drive the first direction propeller to track the sunlight in the same manner as described above during the first time. In the second time, the first direction propeller may be driven as needed to rotate the solar battery unit 100 to the same position within a predetermined range, regardless of the rotational speed and the like. As a result, in the case where the second direction propeller is provided as described above, if the solar battery unit 100 is a method of reversing the rotation direction at a rotation angle of about 180 degrees, if only the first direction propeller is provided, The first direction propeller rotates about 360 degrees by the first direction propeller.

In any case, according to the technical idea of the present invention, the solar battery unit 100 floated on the water surface can be easily rotated by driving the propeller unit located in the water, thereby facilitating solar tracking in a floating power generation system It is possible to have an effect that can be achieved.

However, since the propeller has the characteristic of adding a propulsive force in a specific linear direction in water, the first direction propeller and / or the second direction propeller each rotate the solar battery 100 in place with a pair of propellers However, there is a possibility that the solar battery unit 100 may be moved in a specific direction in some cases. In addition, not only by the driving of the propeller unit but also due to the nature of the water surface, there is a possibility that the solar battery unit 100 may be floated or flowed due to external factors such as waves, waves, winds and the like.

The reason why the conventional floating solar power generation systems are equipped with a facility for fixing the solar cell module is that the solar cell unit 100 has to rotate for solar tracking while floating on the water surface It can not be fixed because of its characteristics. To this end, the solar tracking floating power generation system 1 according to the embodiment of the present invention may further include a guard part 200 for preventing the solar battery part 100 from departing as described above.

1, the guard part 200 is formed to surround the solar battery part 100 and can float on the water surface, and the guard part 200 surrounding the solar battery part 100 is fixed So that the solar battery unit 100 can be prevented from departing.

It is preferable that the guard part 200 does not interfere with the rotation of the solar cell part 100 and does not form an excessively large space in comparison with the diameter of the solar cell part 100. [ According to an example, the guard part 200 may be formed to have a circular ring shape as a whole as shown in the figure, but it is not limited thereto. And may be formed to have various shapes according to need or depending on the shape of the solar battery unit 100.

The guard portion 200 may be formed of at least an inner surface of a predetermined cushion or an elastic material so as to alleviate an impact upon collision with the solar cell unit 100 as much as possible.

In order to prevent the solar battery unit 100 from being detached from the guard unit 200 due to abrupt change in the water level, waves, wind, etc., the guard unit 200 has a predetermined height and width May be formed.

Examples of the configuration of the solar cell unit 110 will now be described with reference to FIGS. 4 to 6. FIG.

4 is a view showing examples of cross sections of a solar cell unit of a solar tracking floating power generation system according to an embodiment of the present invention.

Referring to FIG. 4A, the solar cell unit 110 may have a structure of a frame 112 for supporting the solar panel 111 and the solar panel 111 from both sides. And the waterproof member 113 is formed on the opposite surface of the solar light incident surface, so that the solar cell unit 110 can be directly suspended on the water surface. 4A, the waterproofing member 113 may be formed to cover the rear surface of the solar panel 111 and the frame 112. As shown in FIG. In one embodiment, the waterproofing member 113 can use a waterproof hot-melt sheet. The waterproof hot-melt sheet is a sheet to which a thermoplastic resin is heated and melted, then adhered to the adhesive surface, and then solidified and adhered. However, in one embodiment of the present invention, it is obvious to a person skilled in the art that the waterproofing member 113 is not necessarily limited to a waterproof hot-melt sheet but can be used with any waterproofing material.

 Referring to FIG. 4B, the solar cell unit 110 includes a floating reinforcement layer 114 for strengthening the floating force of the solar cell unit 110 on the opposite side of the solar light incident surface of the solar cell unit 110 May be formed. The floatation enhancing layer 114 may be formed to cover the waterproofing member 113 and may help the solar cell unit 110 to float more easily on the surface of the water when the solar cell unit 110 floats directly on the surface of the water. In one embodiment, the stiffening layer 114 may be rectangular foamed styrofoam, synthetic wood, or the like, but it is not limited thereto. It is obvious to a person skilled in the art that any material having a floating strength can be used .

5 is a view showing an example of a solar cell unit of a solar photovoltaic floating generation system according to an embodiment of the present invention.

Referring to FIG. 5, the solar cell unit 110 may include an inclination forming member 115 for allowing the solar cell unit 110 to form an inclination when the solar cell 110 floats on the water surface. As shown in FIG. 3, the inclined forming member 115 is provided on one side of the solar cell unit 110 opposite to the solar light incident surface, and one side thereof is floated above the other side, so that the solar cell unit 110 forms a warp . In this case, the inclined forming member 115 may be formed of foamed styrofoam, synthetic wood, or the like as in the case of the floating reinforcement side 114, but it is not limited thereto. It is an obvious fact.

5, an additional floating member may be provided on one side of the inclined forming member 115 to float one side of the inclined forming member 115 above the other side, but this is according to one embodiment, But any other method can be used as long as it can form a slope on the substrate 110.

Referring to FIG. 1 again, as described above, the first connection unit 130 may be provided to connect the plurality of solar cell units 110 to one another.

The first connection unit 130 may connect the plurality of solar cell units 110 to each other. That is, the first connection unit 130 may prevent the plurality of solar cell units 110 from being damaged due to scattering or colliding with each other by connecting the plurality of solar cell units 110 to each other.

Therefore, the present invention can provide a technical idea to connect the plurality of solar cell units 110 to each other and to prevent the danger such as breakage.

According to an embodiment, the first connection unit 130 may connect the plurality of solar cell units 110 to each other in various ways. The manner in which the first connection unit 130 connects the plurality of solar cell units 110 will be described in detail with reference to FIGS.

6 is a view illustrating an example of a first connection part in a solar tracking floating power generation system according to an embodiment of the present invention.

6 (a), the solar cell unit 110 may have at least one hole 116 on its side surface. The holes 116 may be formed to allow the plurality of solar cell units 110 to be connected to each other by inserting the first connection unit 130.

5 (b), the first connection part 130 includes a body part 131, a locking part 132, and a unit collision prevention part (not shown) 133).

In this case, the first connection part 130 may include at least one engagement part 132 at both ends of the body part 131, and the end of the first connection part 130 may be connected to the hole 116 The plurality of solar cell units 110 can be connected to each other by preventing the latching portion 132 from being caught by the hole 116 after being inserted.

According to an embodiment, the first connection part 130 may be provided with a unit collision preventing part 133 adjacent to the locking part 132. This allows the side surface of the solar cell unit 110 to be positioned between the engagement portion 132 and the unit collision preventing portion 133 to prevent collision between the plurality of solar cell units 110. For this purpose, it is preferable that the engaging portion 132 or the unit impact preventing portion 133 is formed to be larger than the size of the hole 116 formed in the side surface of the solar cell unit 110.

The body part 131 of the first connection part 130 may be formed of one or more of soft fibers, plastic and rubber, and the engagement part 132 or the unit collision preventing part 133 may be formed of a rigid Plastic, rubber, and metal, but the scope of the present invention is not limited thereto.

7 is a view showing another example of the first connection portion in the solar tracking floating power generation system according to the embodiment of the present invention.

Referring to FIG. 7A, the solar cell unit 110 may include at least one pair of the first hole 117 and the second hole 118 adjacent to each other on the side surface. The first hole 117 and the second hole 118 may be formed so that the first connection part 130 formed of a flexible material is inserted and connected between the plurality of solar cell units 110 have.

7B, the first connection part 130 is formed only of the body part 131, and one end of the first connection part 130 is connected to the first hole 117 and the second hole 130, The first connection unit 130 may be connected to the body 131 of the first connection unit 130 so that the plurality of solar battery units 110 are connected to each other.

At this time, the body 131 of the first connection part 130 may be formed of one or more of soft fibers, plastic, and rubber, but the scope of the present invention is not limited thereto.

Examples of the configuration of the first connection portion 130 have been described with reference to FIGS. 6 and 7. FIG. The first connection unit 130 connects a plurality of solar cell units 110 and a plurality of solar cell units 110 are connected to the water tank 110. [ It is possible to prevent a collision with each other even if a certain portion moves according to the movement of the water surface in the inside of the cabinet 120. 5 and 6 are examples of the first connection unit 130 according to an embodiment of the present invention. When the first connection unit 130 is connected to the plurality of solar cell units 110 It will be apparent to those skilled in the art that other configurations may be employed to couple the two components.

The first connection unit 130 may connect the plurality of solar cell units 110 and the frame 120 as well as the plurality of solar cell units 110 as described above.

8 is a view illustrating an example in which the solar cell unit of the solar tracking floating power generation system according to the embodiment of the present invention includes the shock absorbing member.

As described above, the solar-light tracking floating power generation system 1 according to an embodiment of the present invention includes the first connection unit 130 so that a plurality of solar cell units 110 are provided in the water tank 120 It is possible to prevent the plurality of solar cell units 110 from being collided with each other and being damaged.

However, even if the plurality of solar cell units 110 are connected to each other through the first connection part 130 due to a sudden change in water level, waves, strong winds, etc., there is a possibility that they may collide with each other. In addition, there is still a risk that the solar cell unit 110 or the plurality of solar cell units 110 may collide with the water tank 120 directly.

Therefore, according to the technical idea of the present invention, each of the solar cell unit 110 and / or the plurality of solar cell units 110 included in the solar tracking floating power generation system 1 is provided with a predetermined shock- It is possible to prevent a collision between the solar cell units 110 that may occur, and / or a damage due to a collision between the solar cell unit 110 and the water tank 120. [

8, in order to prevent collision of the plurality of solar cell units 110 with the solar cell unit 110 and damage due to collision of the solar cell unit 110 and the water tank 120, And a predetermined shock absorbing member 119 may be provided at each corner portion.

The impact absorbing member 119 may be foamed foamed foam or sponge capable of absorbing impacts. However, the scope of the present invention is not limited thereto, and any material having shock absorbing properties may be used. It is an obvious fact.

1, the solar tracking floating power generation system 1 is installed on the ground and connected to the guard unit 200 through the second connection unit 310, and the guard unit 200 The fixing part 300 may be embodied as a winding part for adjusting the length of the second connection part 310 according to an embodiment.

This is because when the sunlight tracking floating power generation system 1 is significantly changed in the level of the water surface on which the floating solar power system 1 floats, the guard part 200 and / or the guard part 200 of the solar battery 100 surrounded by the guard part 200 It may be to more effectively prevent separation or breakage.

On the other hand, the solar cell unit 110 is installed to be inclined by a certain angle according to the altitude of the sun for more efficient lighting in a float type as well as a general land type solar power generation system.

However, if the solar cell unit 110 can be fixedly installed, such as on land or in a conventional floating solar power generation system, it may not have any problem that the solar cell unit 110 has a slope. However, Likewise, when each of the solar cell units 110 floats directly on the water surface, there is a risk of overturning and / or breaking of the solar cell unit 110 due to wind.

Therefore, the present invention can provide a technical idea that can prevent such a danger, and such a technical idea is shown in FIG. 9 and FIG.

9 and 10 are views for explaining windshield units of a solar tracking floating power generation system according to an embodiment of the present invention.

Referring to FIG. 9, the windshield unit 140 may be disposed on one side of the frame 130 so as to cover the rear of the solar cell units 110 by a predetermined amount or more.

As shown in FIG. 10, the rear of the solar cell unit 110 means a direction on the side where the lower surface of the solar cell unit 110 is exposed when the solar cell unit 110 is inclined by a predetermined angle .

9 shows a case in which the windshield unit 140 is provided on the frame 130. According to an embodiment of the present invention, a part of the rear portion of the solar cell units 110 in the frame 130, Unit 140 may be substituted.

In any case, the windshield unit 140 may be positioned behind the solar cell units positioned at the last of the solar cell units 110, and may be installed to be inclined in the opposite direction to the solar cell units 110 , So that the wind blowing from the rear can be scattered to the upper part of the solar tracking floating power generation system 1.

The windshield unit 140 may have a flat plate shape and only function to block the wind. However, the windshield unit 140 may be implemented as the solar cell unit 110 according to an embodiment. For example, among the plurality of solar cell units 110 provided in the solar tracking floating power generation system 1, the solar cell units positioned in the last row are installed to be inclined in the opposite direction to the other solar cell units, The solar cell module can perform the function of the windshield unit 140 and can perform a solar power generation function at a certain level although the power generation efficiency may be lowered due to a different tilt direction from the remaining solar cell units.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (9)

A plurality of solar cell units having a solar cell module on one surface thereof, a waterproof member formed on the other surface thereof, floating on the surface of the water surface, and connected to each other, and a frame formed to surround the plurality of solar cell units, A solar battery unit provided;
A propeller unit disposed at a lower portion of the frame and including at least one propeller for rotating the solar cell unit suspended in the water surface in a predetermined direction;
A control unit for selectively driving the propeller unit to track sunlight while rotating the solar cell unit in a predetermined direction in accordance with the movement of the sun; And
And a guard portion which is formed so as to surround the solar cell portion so as to be separated from the outside of the solar cell portion by a predetermined distance so as to prevent the solar cell portion from being separated from the solar cell portion, ,
The propeller unit,
At least one first direction propeller for rotating said frame in a first direction and at least one second direction propeller for rotating said frame in a second direction different from said first direction,
Wherein,
The first direction propeller is driven to rotate the solar cell unit in the first direction to correspond to the movement of the sun during a first time during which solar power generation is possible,
Rotating the solar cell part in the second direction for at least a part of a second time during which solar power generation is impossible and returning the solar cell part to the same position before rotation in the first direction and within a predetermined range,
The plurality of solar cell units may include:
And is inclined by a predetermined angle in a specific direction,
Wherein the solar cell units located in the last row of the plurality of solar cell units are tilted by a predetermined angle in a direction opposite to that of the remaining solar cell units to serve as windshield units .
delete 2. The propulsion system according to claim 1, wherein the first direction propeller comprises:
A first propeller and a second propeller respectively formed to be symmetrical with respect to each other at a lower edge of the frame,
Wherein the at least one second direction propeller comprises:
A third propeller and a fourth propeller positioned to intersect the first propeller and the second propeller, respectively, and each of the third propeller and the fourth propeller being symmetrical to each other at a lower edge of the frame.
delete The apparatus of claim 1,
Wherein the solar cell unit is rotated by periodically driving the propeller unit for a predetermined time with a constant output for a predetermined unit time.
delete The solar tracking system according to claim 1,
Further comprising: a fixing part installed on the ground and connected to the guard part, for fixing the guard part to a water surface within a predetermined range.
delete delete

Images