KR20090105658A - Solar power plant constructed on the water - Google Patents

Abstract

PURPOSE: A waterborne solar power generator is provided to optimize an irradiation angel of sunlight and increase the intensity of radiation. CONSTITUTION: A frame(10) is floated on the water. A support(20) is installed in the frame. A solar generation module(30) is rotatably installed in the support upward and downward. A solar generation module receives the sunlight and generates electricity. A four directional sun tracker fixes the frame so that the position of the frame is not changed due to the flow of the water. The four directional sun tracker rotates the frame on the water so that the solar generation module tracks the sun when the longitude of the sun is changed. A sun amplitude tracker(50) is prepared in the support. The solar amplitude tracker rotates the sun generation module to track the sun upward and downward.

Description

SOLAR POWER PLANT CONSTRUCTED ON THE WATER

The present invention relates to a photovoltaic device, and more particularly to a water photovoltaic device installed in the water.

In general, a photovoltaic device that generates electricity by converting sunlight into electrical energy using a solar cell is widely known and used.

Solar cell power generation efficiency depends on the amount of solar radiation. Therefore, in constructing a solar power generating device, a site having a good irradiation amount of solar light should be selected in order to increase power generation efficiency, and civil works such as stop work for installing solar cells at the selected site should be performed.

However, in the case of installing the photovoltaic device on land, due to the enormous site cost and the cost of civil engineering work, the practical use of the solar cell was not widely made despite the various advantages of the solar cell.

Thus, a method of installing a photovoltaic device in the water was proposed.

As a conventional technology for installing a photovoltaic device in the water, a water photovoltaic power system disclosed in Korean Unexamined Utility Model Publication No. 2007-0000044 is disclosed.

The water-based photovoltaic power generation system according to the prior art is composed of a buoy floating in water, a support installed on the buoy, and a plurality of solar cell panels installed on the support maintaining a constant angle in accordance with the irradiation angle of sunlight.

However, since the position of the buoy in the prior art water-based photovoltaic system changes from time to time according to the flow of water, there is a problem that the solar power is not properly irradiated on the solar cell panel, the power generation efficiency falls.

The present invention is to solve the problems of the prior art, to provide a water-based photovoltaic device that is fixed in position to resist the flow of water, and can increase the amount of sunlight by tracking the sun.

The present invention for achieving the above object is a frame suspended in water; A support member installed on the frame; A photovoltaic power generation module rotatably installed in the support member in a vertical direction and generating power by being irradiated with the sunlight; An east-west sun tracking unit which fixes the frame so that its position does not change due to the flow of water, and rotates the frame on water so that the solar power module can track the sun with respect to the longitudinal displacement of the sun; It is provided on the support member, and includes a solar altitude tracking unit for rotating the photovoltaic module in the vertical direction to track the sun with respect to the altitude displacement of the sun.

The east-west direction sun tracking unit is protruded from each other in the clockwise direction to the edge of the frame, and each of the four first, second, three, four fixing bar to form a rectangular when interconnected; The frame is installed on the water surface so that the ground is positioned on both sides of the first and fourth fixing bar and the second and third fixing bar respectively facing each other, and are fixed to the first fixing bar and guided to the second fixing bar to guide the second and third fixing bars. A first wire connected to the ground on which the three fixing bars are opposed; A second wire fixed to the first fixing bar and connected to the ground facing the first and fourth fixing bars; A third wire fixed to the third fixing bar and guided to the fourth fixing bar and connected to the ground facing the first and fourth fixing bars; A fourth wire fixed to the third fixing bar and connected to the ground opposite to the second and third fixing bars; A first support roller installed on the ground facing the first and fourth fixing bars of the frame and supported by the second and third wires connected to each other; Second and third support rollers installed on the ground facing the second and third fixing bars of the frame and supporting the first and fourth wires, respectively; And a first winch installed on the ground facing the second and third fixing bars of the frame and winding the first and fourth wires respectively supported by the second and third support rollers in opposite directions.

The solar altitude tracking unit is provided on one side of the solar power module and a solar tracking sensor for tracking the altitude displacement of the sun; A hydraulic actuator provided on the support member to rotate the solar power module; And a control means for receiving the altitude value of the sun sensed by the solar tracking sensor to control the hydraulic actuator so that the solar power module is rotated according to the altitude displacement of the sun.

The present invention is suspended in the water, and fixed to the frame with a photovoltaic module installed by a wire connected to the ground, to rotate the frame in the east-west direction by tracking the sun according to the altitude or hardness displacement of the solar or the photovoltaic module By rotating in the vertical direction, there is an advantage that can improve the power generation efficiency by optimizing the irradiation angle of sunlight irradiated to the photovoltaic power generation module and increasing the amount of light.

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

An embodiment of a water-based photovoltaic device according to the present invention is shown in FIG.

Referring to FIG. 1, the present embodiment includes a frame 10 floating in water, a support member 20 installed in the frame, and a solar power generation module rotatably installed on the support member and generating power by being irradiated with sunlight. 30), an east-west solar tracker for rotating the frame on the water so as to track the sun moving in the east-west direction, and a solar altitude tracker for rotating the solar power module in the vertical direction from the support member (50). )

The bottom of the frame 10 is provided with a buoy 11 floating in the water.

The photovoltaic module 30 includes a module frame 31 rotatably connected to a hinge shaft 32 provided at left and right sides of the support member 20 so as to be rotated in a vertical direction, and a plurality of modules are arranged on the module frame 31. It consists of a solar cell 33 that is irradiated with light to generate power.

The east-west solar tracker can track the sun in which the photovoltaic module 30 moves in the east-west direction while fixing the frame 10 by a wire connected to the ground so that the position of the frame 10 is not changed by the flow of water. Winding or loosening the wire connected to the frame 10 to the winch means to rotate the frame 10 on the water.

2 to 7, as an example of using four winches for the rotation of the frame, six, seven, eight, nine winches (42f, 42g, 42h, 42i) spaced vertically at four edges of the frame (10) ) Is installed. The sixth, seventh, eighth and ninth winches are arranged sequentially along the clockwise direction. The sixth, seventh, eighth, and ninth winches are installed such that virtual connecting lines connecting the sixth, seventh, eighth, and ninth winches form a rectangular shape.

In addition, the edges of the respective frames 10 proximate to the sixth, seventh, eighth, and ninth winches 42f, 42g, 42h, and 42i are sequentially provided with the seventh, eighth, nineth, tenth fixing bars 41g, 41h, 41i, 41j) are provided.

The frame 10 is installed on the ground where the seventh and tenth fixing bars 41g and 41j face each other, and the ground is positioned where the eighth and ninth fixing bars 41h and 41i face each other.

In this way, the frame 10 is wound on the sixth winch (42f) in the state is positioned and guided to the eighth fixing bar (41h) is fixed to the ground facing the eighth, ninth fixing bar (41h, 41i) The tenth wire 43j wound by the ninth wire 43i and the seventh winch 42g and guided to the seventh fixing bar 41g to be fixed to the ground on which the seventh and tenth fixing bars 41g and 41j are opposed. ), The eleventh wire 43k wound by the eighth winch 42h and fixed to the ground opposite to the eighth and ninth fixing bars 41h and 41i, and the nineth winch 42i and wound by the ninth winch 42i. A twelfth wire 43l fixed to the ground where the 7,10 fixing bars 41g and 41j face each other is provided.

Solar altitude tracking unit 50 is a solar tracking sensor 51 for tracking the position of the sun according to the altitude displacement on one side of the module frame 31 of the photovoltaic module 30 and the photovoltaic module 30 Hydraulic actuator 52 for rotating the module frame 31, and the control means 53 for receiving the altitude value of the sun detected by the sun tracking sensor 51 to control the hydraulic actuator (52).

The solar tracking sensor 51 is a general sensor for detecting the altitude of the sun by arranging an optical sensor inside a cylindrical structure or a rectangular structure having a partition wall, and converting an electrical signal generated according to the intensity of sunlight reaching the optical sensor. Detailed description will be omitted.

The hydraulic actuator 52 is a servo motor is used, and is installed to transmit a rotational force to the hinge shaft 32 of the module frame 31.

In the following, the driving of an example using four winches for the rotation of the frame will be described.

The sixth, seventh, eighth and ninth winches (42f, 42g, 42h, 42i) are also programmed with the sun's movement time according to the sunrise time and the sunset time of the sun, which are input in advance by season or month, and the sun altitude tracking unit (50). The driving is controlled by the control signal of the control means 53, which receives the longitude position value of the sun from the sun tracking sensor 51 of the).

Referring to FIG. 3, the ninth and twelfth wires 43i and 43l are wound by the sixth and ninth winches 42f and 42i, thereby rotating the frame 10 clockwise. The ninth winch 42i is driven until it reaches the shortest distance from the ground where the ninth winch 42i and the tenth and twelfth wires 43j and 43l are fixed.

On the other hand, the eleventh wire 43k held in the eighth position 42h is released while being supported by the eighth fixing bar 41h. The tenth wire 43j wound around the seventh winch 42g is released while being sequentially supported by the seventh fixing bar 41g and the tenth fixing bar 41j. The twelfth wire 43l wound around the ninth winch 42i is also released.

Referring to FIG. 4, in the rotation of the frame 10, the ninth wire 43i is wound by the sixth winch 42f to fix the sixth winch 42f and the ninth and eleventh wires 43i and 43k. Until the shortest distance to the ground.

On the other hand, in the reverse rotation of the frame 10, the twelfth wire 43l is wound by the drive of the ninth winch 42i, and the frame 10 is rotated counterclockwise. At this time, the seventh and eighth winches 42g and 42h are also driven to wind up the tenth and eleventh wires 43j and 43k. The ninth wire 43i wound around the sixth winch 42f is released.

As shown in FIG. 5, the ninth winch 42i is driven until the ninth winch 42i and the tenth and twelfth wires 43j and 43l reach the shortest distance from the ground.

Then, the twelfth wire 43l wound around the ninth winch 42i is released again, and the frame 10 is counterclockwise by the winding force of the eighth winch 42h winding the eleventh wire 43k. Rotation continues in the direction.

As shown in FIG. 6, the eighth winch 42h is driven until the eighth winch 42h and the ninth and eleventh wires 43i and 43k reach the shortest distance from the ground.

Then, the eleventh wire 43k wound on the eighth winch 42h is released again, and the frame 10 is counterclockwise by the winding force of the seventh winch 42g winding the tenth wire 43j. Rotation continues in the direction.

As shown in FIG. 7, the seventh winch 42g is driven until the seventh winch 42g and the tenth and twelve wires 43j and 43l reach the shortest distance from the ground.

Thus, the sixth, seventh, eighth, and ninth winches rotate the frame forward and backward within a 360 ° range while winding or unwinding the 9th, 10th, 11th, and 12th wires.

Meanwhile, referring to FIGS. 8 and 9, another example of using four winches for rotating the frame is illustrated.

8 and 9, the second and third winches 42b and 42c are installed in close proximity to one side of the edge of the frame 10. In addition, the fourth and fifth winches 42d and 42e are disposed adjacent to each other at the edge of the frame 10 opposite to the portion where the second and third winches are installed. The second, third, fourth and fifth winches 42b, 42c, 42d and 42e provided in this manner are sequentially arranged along the clockwise direction.

The fifth fixing bar 41e is disposed at the edge of the frame 10 corresponding to the space between the second primary 42b and the fifth winch 42e and between the third primary 42c and the fourth winch 42d. ) And a sixth fixing bar 41f are provided.

The fifth fixing bar 41e installed in the frame 10, the second and third winches 42b and 42c adjacent to each other, the sixth fixing bar 41f, and the fourth and fifth winches 42d and 42e adjacent to each other. ) Are located at the edge of the frame 10 in which virtual connecting lines with each other can form a rectangle.

In addition, the frame 10 is positioned above the fifth fixing bar 41e and the fourth and fifth winches 42d and 42e adjacent to each other, and the second and third winches 42b and 42c adjacent to each other. ) And the sixth fixing bar 41f are installed on the water surface so that the ground is positioned. In this way, the ground is wound by the second winch 42b in the state where the frame 10 is positioned, guided to the fifth fixing bar 41e, and the fifth fixing bar 41e and the fifth winch 42e are opposed to each other. A fifth wire 43e fixed to the sixth wire 43f and a third wire 43f wound by the third winch 42c and fixed to the ground where the third winch 42c and the sixth fixing bar 41f face each other; A seventh wire 43g wound by the fourth winch 42d and guided to the sixth fixing bar 41f and fixed to the ground where the third winch 42c and the sixth fixing bar 41f are opposed; The eighth wire 43h, which is wound by the fifth winch 42e and fixed to the ground where the fifth fixing bar 41e and the fifth winch 42e face each other, is provided.

In the following, another example of driving using four winches for rotating the frame will be described.

The second, third, fourth, and fifth winches 42b, 42c, 42d, and 42e control the sun's movement time according to the programmed sunrise and sunset time of the sun according to the programmed time. In addition, it may be controlled by the control means 53 receives the position value of the longitude of the sun from the sun tracking sensor 51 of the sun altitude tracking unit 50.

The second, third, fourth and fifth winches 42b, 42c, 42d and 42e are respectively driven by the programmed information and the control signal of the control means.

As the second winch 42b and the fourth winch 42d are driven to wind the fifth wire 43e and the seventh wire 43g, the frame is rotated counterclockwise.

The sixth wire 43f and the eighth wire 43h connected to the third winch 42c and the fifth winch 42e are released.

The second winch 42b is driven until it reaches the shortest distance from the ground where the fifth wire 43e and the eighth wire 43h are fixed, and the fourth winch 42d is the sixth wire 43f and the seventh. The wire 43g is driven until it reaches the shortest distance from the fixed ground.

At this time, the sixth wire 43f and the eighth wire 43h are longer and longer, and are pulled by the sixth fixing bar 41f and the fifth fixing bar 41e, respectively.

As such, the frame 10 is rotated such that the second winch 42b and the fourth winch 42d are moved to opposite sides, thereby rotating the frame 10 by 180 °.

On the other hand, the original position of the frame 10 is made by winding the sixth wire 43f and the eighth wire 43h, which are released by the rotation of the frame, by the driving of the third winch 42c and the fifth winch 42e. At this time, the fifth wire 43e and the seventh wire 43g wound around the second winch 42b and the fourth winch 42d are released.

Accordingly, the frame 10 is rotated 180 while the second, third, fourth and fifth winches 42b, 42c, 42d and 42e wind or unwind the fifth, sixth, seventh and eighth wires 43e, 43f, 43g and 43h. It will rotate forward and backward within the range.

On the other hand, shown in Figures 10 and 11 attached to an example using a winch for the rotation of the frame.

Referring to FIGS. 10 and 11, four first, second, third and fourth fixing bars 41a, 41b, 41c, and 41d are installed at the edges of the frame to be spaced apart from each other in a clockwise direction. First, second, third, and fourth wires 43a, 43b, 43c, and 43d are respectively connected to the four fixing bars and fixed to the ground.

The first, second, third and fourth fixing bars are installed at positions that form a rectangle when interconnected.

Connection of the first, second, third and fourth wires 43a, 43b, 43c and 43d to the first, second, third and fourth fixing bars is performed by the first and fourth fixing bars 41a, 41d and the second and third fixing bars. The case where the ground is located where both sides of the frame provided with 41b and 41c oppose each other is demonstrated.

The first wire 43a is fixed to the first fixing bar 41a and guided to the second fixing bar 41b so as to be connected to the ground on which the second and third fixing bars 41b and 41c face each other.

The second wire 43b is fixed to the first fixing bar 41a and connected to the ground on which the first and fourth fixing bars 41a and 41d face each other.

The third wire 43c is fixed to the third fixing bar 41c and guided to the fourth fixing bar 41d to be connected to the ground on which the first and fourth fixing bars 41a and 41d face each other.

The fourth wire 43d is fixed to the third fixing bar 41c and connected to the ground opposite to the second and third fixing bars 41b and 41c.

A first support roller 44a is installed on the ground where the first and fourth fixing bars 41a and 41d face each other, and the second and third wires 43b and 43c are connected to each other to be supported by the first support roller 44a. It is installed. The second support roller 44b on which the first wire 43a is supported and the third support roller on which the fourth wire 43d is supported on the ground on which the second and third fixing bars 41b and 41c face each other. 44c) is installed.

In addition, a first winch 42a including a bobbin in which the first and fourth wires 43a and 43d supported by the second and third support rollers are wound in opposite directions and a driving motor to rotate the first and fourth wires 43a and 43d are provided. Therefore, the first and fourth wires 43a and 43d are wound on the bobbin in opposite directions so that one of the first and fourth wires 43a and 43d is wound and the other one is released when the bobbin rotates.

In the above example, the winch is rotated using one winch, and four winches may be used to individually wind or unwind the first, second, third and fourth wires.

Solar altitude tracking unit 50 is a solar tracking sensor 51 for tracking the position of the sun according to the altitude displacement on one side of the module frame 31 of the photovoltaic module 30 and the photovoltaic module 30 Hydraulic actuator 52 for rotating the module frame 31, and the control means 53 for receiving the altitude value of the sun detected by the sun tracking sensor 51 to control the hydraulic actuator (52).

The solar tracking sensor 51 is a general sensor for detecting the altitude of the sun by arranging an optical sensor in a cylindrical or rectangular structure having a partition wall and converting an electrical signal generated according to the intensity of sunlight reaching the optical sensor. Description is omitted.

The hydraulic actuator 52 is a servo motor is used, and is installed to transmit a rotational force to the hinge shaft 32 of the module frame 31.

Hereinafter, the operation and effects of the present embodiment configured as described above will be described.

10 and 11, the frame 10 is fixed by the first, second, third and fourth wires 43a, 43b, 43c and 43d while being installed in the water phase. Then, as the sun moves in the east-west direction, the frame 10 is rotated so that the photovoltaic module 30 tracks the sun.

That is, the photovoltaic module 30 installed in the support member 21 by the rotation of the frame 10 to track the sun.

The rotation drive of the frame 10 programs the sun's movement path according to the sunrise time and the sunset time of the sun, which are input in advance for each season or month, and the first winch is controlled according to the programmed information. In addition, the first winch 42a may be controlled by the control means 53 which receives the longitude position value of the sun from the sun tracking sensor 51 of the sun altitude tracking unit 50.

When the first winch 42a is driven, the first wire 43a is wound and the fourth wire 43d is released. At this time, the first fixing bar 41a of the frame 10 is pulled out by the odor of the first wire 43a, and the frame 10 is rotated in the clockwise direction. The second wire 43b and the third wire 43c are moved clockwise while being supported by the first support roller 44a.

 In particular, since the first fixing bar 41a is located at a position opposite to the ground opposite to the ground on which the winch 42a is installed, the frame 10 is rotated by the first wire 43a and the first fixing bar 41a is rotated. Comes to a position opposite to the ground on which the winch 42a is installed. As a result, the frame 10 can be rotated up to 180 °.

Thus, tracking of the sun moving in the east-west direction becomes possible.

Then, when the sun is at the sunset time or when sunlight is not detected by the sun tracking sensor 51, the control means 53 controls the first winch 42a to return the frame 10 to its original position.

The frame 10 is rotated counterclockwise to its original position. That is, when the driving motor of the first winch 42a generates the reverse rotation power, the fourth wire 43d is wound and the first wire 43a is released. At this time, the third fixing bar 41c is pulled by the winding of the fourth wire 43d, and the frame 10 is rotated counterclockwise. The second wire 43b and the third wire 43c are moved counterclockwise while being supported by the first support roller 44a.

On the other hand, while the solar power generation module 30 is tracking the sun moving in the east-west direction by the rotation of the frame 10, the solar power generation module 30 by the solar altitude tracking unit 50 changes the sun To be tracked.

That is, the sun tracking sensor 51 detects the altitude of the sun and transmits the detected altitude value to the control means. The control means 53 which has received the altitude value of the sun transmits a control signal to the hydraulic actuator 52 in comparison with the preset altitude value of the sun. Thus, when the hydraulic actuator 52 is driven, the module frame 31 is rotated in the up and down direction so that the photovoltaic module 30 tracks the sun in which the altitude changes.

In this way, the frame 10 can be rotated up to 180 ° in the water phase, so that the sun moving in the east-west direction can be tracked, and the altitude of the sun moving in the east-west direction by drawing a parabola moves the module frame 31 up and down. Since rotation can be tracked in the direction, the power generation efficiency of the solar cell 33 of the photovoltaic module 30 can be improved.

The embodiments of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

1 is a view showing an embodiment of a water-based photovoltaic device according to the present invention,

2 to 4 is a view showing a process of rotating the frame of the water photovoltaic device of Figure 1 counterclockwise,

5 to 7 is a view showing a process of rotating the frame of the water photovoltaic device of Figure 1 clockwise,

8 and 9 is a view showing the forward and reverse rotation of the frame as another embodiment of the water photovoltaic device according to the present invention,

10 and 11 is a view showing a frame rotation operation according to another embodiment of a water-based photovoltaic device according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10 frame 11: buoy

20: support member 30: solar power module

33: solar cell 50: solar altitude tracking unit

51: solar tracking sensor 52: hydraulic actuator

53: control means

Claims (5)

A frame suspended in water; A support member installed on the frame; A photovoltaic power generation module rotatably installed in the support member in a vertical direction and generating power by being irradiated with the sunlight; An east-west sun tracking unit which fixes the frame so that its position does not change due to the flow of water, and rotates the frame on water so that the solar power module can track the sun with respect to the longitudinal displacement of the sun; The water photovoltaic device provided on the support member, comprising a solar altitude tracking unit for rotating the photovoltaic module in the vertical direction to track the sun with respect to the altitude displacement of the sun. The method of claim 1, The east-west direction tracking unit Four first, second, third, and four fixed bars protruding from each other in clockwise directions at edges of the frame and forming a rectangular shape when interconnected; The frame is installed on the water surface so that the ground is located on both sides of the first and fourth fixing bars and the second and third fixing bars, respectively, fixed to the first fixing bar and guided to the second fixing bar to guide the second. A first wire connected to the ground on which the three fixing bars are opposed; A second wire fixed to the first fixing bar and connected to the ground facing the first and fourth fixing bars; A third wire fixed to the third fixing bar and guided to the fourth fixing bar and connected to the ground facing the first and fourth fixing bars; A fourth wire fixed to the third fixing bar and connected to the ground opposite to the second and third fixing bars; A first support roller installed on the ground facing the first and fourth fixing bars of the frame and supported by the second and third wires connected to each other; Second and third support rollers installed on the ground facing the second and third fixing bars of the frame and supporting the first and fourth wires, respectively; And a first winch installed on the ground facing the second and third fixing bars of the frame and winding the first and fourth wires respectively supported by the second and third support rollers in opposite directions. Water photovoltaic device. The method of claim 1, The east-west direction tracking unit Second and third winches installed close to one edge of the frame; Fourth and fifth winches installed adjacent to the other edge of the frame; The second, third, fourth, and fifth winches are sequentially arranged in a clockwise direction, and edges of the frame corresponding to the space between the second winch and the fifth winch and between the third winch and the fourth winch. A fifth and sixth fixing bars protruding from each other; The frame is located above the fifth fixing bar and the fifth winch facing the ground, the third winch and the sixth fixing bar is installed so that the ground is located, wound by the second winch and the A fifth wire guided to a fifth fixing bar and fixed to the ground facing the fifth fixing bar and the fifth winch; A sixth wire wound around the third winch and fixed to the ground facing the third winch and the sixth fixing bar; A seventh wire wound by the fourth winch and guided to the sixth fixing bar and fixed to the ground where the third winch and the sixth fixing bar face each other; And an eighth wire wound by the fifth winch and fixed to the ground facing the fifth fixing bar and the fifth winch. The method of claim 1, The east-west direction tracking unit Four seventh, eighth, nineth, and tenth fixing bars protruding from each other in a clockwise direction at the edges of the frame and forming a rectangular shape when interconnected; Sixth, seventh, eighth, and ninth winches sequentially installed in the clockwise direction at each frame edge adjacent to the seventh, eightth, nineth, and tenth fixing bars; The frame is installed on the water surface so that the ground is located on both sides of the seventh, tenth fixed bar and the eighth, ninth fixed bar, respectively, and is wound around the sixth winch and guided to the eighth fixed bar to guide the eighth. A ninth wire fixed to the ground opposite the fixed bar; A tenth wire wound by the seventh winch and guided to the seventh fixing bar to be fixed to the ground facing the seventh and tenth fixing bars; An eleventh wire wound by the eighth winch and fixed to the ground opposite to the eighth and ninth fixing bars; And a twelfth wire wound by the ninth winch and fixed to the ground facing the seventh and tenth fixing bars. The method according to any one of claims 1 to 4, The solar altitude tracking unit A solar tracking sensor provided on one side of the solar power module to track the position of the sun according to the altitude displacement; A hydraulic actuator provided on the support member to rotate the solar power module; Receiving the altitude value of the sun sensed by the solar tracking sensor to control the hydraulic actuators comprising a control means for causing the solar power module to rotate in accordance with the altitude displacement of the sun Device.

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