KR100922710B1 - Photovoltaic power apparatus and control method - Google Patents

Abstract

PURPOSE: A solar energy generating apparatus is provided to increase the receiving amount of light of the both sides light-receiving type solar cell module by supplying sunlight to the both sides of the both sides light-receiving type solar cell module. CONSTITUTION: A solar energy generating apparatus includes a both sides light-receiving type solar cell module(100), the first reflecting mirror(110), the first driving part(130), the second reflecting mirror(120), and the second driver part(140). The light-receiving part(105) is formed at the both sides of the both sides light-receiving type solar cell module. The first reflecting mirrors include the plural first reflectors(111). The plural first reflectors are installed to be rotated. The first driving parts are rotated while the plural first reflectors have identical angle. The second reflecting mirrors include the second reflector(121). The second reflectors are installed at the opposite side of the first reflecting mirrors to be rotated.

Description

Photovoltaic power apparatus and control method

The present invention relates to a photovoltaic device for converting solar energy into electrical energy and a control method thereof, and more particularly, to a photovoltaic device having a double-sided light receiving type solar cell module capable of absorbing sunlight from both sides and a control method thereof. It is about a method.

Recently, the depletion of existing fossil energy resources such as petroleum and coal is predicted, and as interest in the environment increases, interest in alternative energy to replace existing fossil energy resources is increasing.

Among these alternative energy, solar energy, which is infinite in resources and has no problems with environmental pollution, is attracting attention.

The solar cell using such solar energy is classified into a solar cell that generates steam required to rotate a turbine using solar heat, and a solar cell that converts photons into electrical energy using properties of a semiconductor.

However, generally speaking a solar cell refers to a solar cell and the following solar cell refers to a solar cell.

Such a solar cell is generally used in the form of a module in which a plurality of solar cells are combined. Hereinafter, a solar cell module will be described.

In general, a single-sided light-receiving solar cell module has a single-sided light receiving unit, but a bilateral photovoltaic solar module has a double-sided light receiving unit capable of receiving light from both sides by forming two p-n junctions with a transparent electrode. Therefore, it has a feature that can be generated simultaneously on both sides.

However, since the double-sided light-receiving solar cell module is installed in a state fixed to the ground vertically during the installation process, the double-sided light-receiving solar cell module also has a light conversion efficiency similar to the conventional single-sided light-receiving solar cell module.

One way to overcome this is to use a solar tracking device to allow the double-sided light receiving solar cell module to follow the sun. However, in order for the double-sided light-receiving solar cell module to follow the sun, an additional module manufacturing cost is incurred, and a large space is required to rotate the large solar cell module.

In addition, there is a disadvantage in that a lot of energy is consumed in order to rotate the entire heavy solar module.

The present invention has been made to solve the above problems, the present invention is a double-sided photovoltaic solar cell module without increasing the amount of light received without tracking the solar photovoltaic device and its control method To provide.

According to one aspect of the present invention, there is provided a photovoltaic device including a first reflecting mirror including a double-sided light receiving type solar cell module having light receiving parts formed on both surfaces thereof, and a plurality of first reflecting plates rotatably installed at one side of the light receiving part facing one surface thereof. And a first driving unit for rotating the plurality of first reflecting plates at the same angle to each other, and a second reflecting plate rotatably installed on an opposite side of the first reflecting mirror about the double-sided light receiving solar cell module. And a second reflecting mirror and a second driving part for rotating the plurality of second reflecting plates at the same angle to each other.

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In this case, the first driving unit and the second driving unit are respectively a driving motor, a cam plate coupled to the rotation shaft of the driving motor, one side is hinged to each of the plurality of reflecting plates, and the other side is coupled to the edge of the cam plate. It can be formed as a link.

In addition, the photovoltaic device includes a control unit for controlling the first driving unit and the second driving unit so that the first reflecting mirror and the second reflecting mirror rotate at a predetermined angle according to the position of the sun, and the position of the sun according to the date and time. It may have a data storage unit in which data is stored.

Meanwhile, the first reflecting plate and the second reflecting plate may be formed of a plastic material.

The double-sided light-receiving solar cell module may have a plurality of double-sided light-receiving solar cell and a light-transmissive glass for fixing positions of the plurality of double-sided light-receiving solar cell, wherein the double-sided light-receiving solar cell module is perpendicular to the ground It can be installed in the direction.

In addition, the double-sided light receiving solar cell module may be installed such that the light receiving portion faces in the east-west direction.

In a method of controlling a solar cell apparatus according to an aspect of the present invention, the step of retrieving data inputting the position of the sun according to seasons and times, and analyzing the data to the side of the solar light incident on the double-sided light receiving solar cell module And rotating the reflector at a predetermined angle so that the installed reflector does not block sunlight incident to the double-sided light receiving solar cell module.

In addition, the reflector installed on the opposite side of the solar light incident side in the double-sided light-receiving solar cell module reflects the sunlight passing through the double-sided light-receiving solar cell module to focus on the double-sided light-receiving solar cell module It may further have a step of rotating the reflector provided on the side opposite to the incident side at a predetermined angle.

According to the solar cell apparatus according to the aspect of the present invention, the amount of received light of the double-sided light-receiving solar cell module can be increased by supplying sunlight to both light receiving portions of the double-sided light-receiving solar cell module.

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

1 is a perspective view of a photovoltaic device according to an embodiment of the present invention, Figure 2 is a side view of the photovoltaic device shown in FIG.

1 and 2, a photovoltaic device according to an embodiment of the present invention includes a double-sided light-receiving solar cell module 100 having a light-receiving unit 105 formed on both sides, and the double-sided light-receiving solar cell module 100. The first reflector 110 is installed on one side of the) and the second reflector 120 is installed on the opposite side of the first reflector 110 with respect to the double-sided light-receiving solar cell module 100.

The light receiving unit 105 of the double-sided light-receiving solar cell module 100 includes a plurality of double-sided light-receiving solar cell 101, and the plurality of double-sided light-receiving solar cell 101 is light-transmitting glass 102. Is fixed by.

The size of the one-sided light-receiving photovoltaic module 100 may be, for example, about 1.2 m × 1.0 m in length and width, and may be formed to produce power of about 150 watts.

In addition, one double-sided light-receiving solar cell 101 forming the double-sided light-receiving solar cell module 100 is formed by alternately joining N (negative) type semiconductors having different electrical properties and P (positive) type semiconductors. It has a structure in which photovoltaic power generation is possible at the same time on both sides by double-sided light reception. In this case, the size of one double-sided light-receiving solar cell 101 may be formed in a square having a length of approximately 12.5 cm in length and width.

On the other hand, the double-sided light receiving solar cell module 100 may be installed to be fixed in the vertical direction to the ground. Therefore, it can be installed in a fence or a guide rail. In this case, the direction in which the double-sided light-receiving solar cell module 100 is installed may be in the east-west direction or the north-south direction, but in this embodiment, the double-sided light-receiving solar cell can receive the most amount of sunlight in the morning and afternoon. It was shown that the module 100 was installed in the east-west direction.

On the other hand, the photovoltaic device according to an embodiment of the present invention, the first reflector 110 and the second reflector are installed so as to face each of the light receiving portion 105 on both sides of the double-sided light-receiving solar cell module 100 in order to increase the light receiving efficiency. 120. Hereinafter, for convenience of description, the reflector facing the east direction is referred to as the first reflector 110, and the reflector facing the west direction is referred to as the second reflector 120.

As such, since the solar cell apparatus includes the first reflecting mirror 110 and the second reflecting mirror 120, sunlight may be incident on the light receiving unit 105 formed on the opposite side of the light receiving unit 105 to which the sunlight is directly incident. Thereby, the light receiving efficiency of the double-sided light receiving solar cell module 100 can be improved.

The first reflecting mirror 110 includes a plurality of first reflecting plates 111, and the second reflecting mirror 120 includes a plurality of second reflecting plates 121.

In this case, the plurality of first and second reflecting plates 111 and 121 constituting the first reflecting mirror 110 and the second reflecting mirror 120 are installed in a blind form. The reflector plates 111 and 121 may be formed of a light weight material to minimize energy required to rotate the plurality of first and second reflector plates 111 and 121. For example, the reflector plates 111 and 121 may be formed of a material that is light and has a high reflectance such as plastic, stainless steel, and aluminum.

Rotating shafts 111a and 121a are provided at both ends of the first and second reflecting plates 111 and 121 so that the first and second reflecting plates 111 and 121 can rotate, respectively. It is rotatably supported by the bracket 106 extending forward and rearward from the side of the solar cell module 100.

At this time, the first connecting rod 112 is coupled to the rotating shaft 111a of the first reflecting plate 111, and the second connecting rod 122 is coupled to the rotating shaft 121a of the second reflecting plate 121.

On the other hand, the photovoltaic device according to the embodiment of the present invention, the first driving unit 130 and the plurality of second reflecting plate 121 to rotate the plurality of first reflecting plate 111 has the same angle to each other, the same angle. It is provided with a second driving unit 140 to rotate.

The first driving unit 130 includes a first link 131 hinged to the first connection rod 112 and a first driving motor 132 for driving the first link 131, respectively. The second driving unit 140 includes a second link 141 hinged to the second connection rod 122 and a second driving motor 142 for driving the second link 141.

Meanwhile, a first cam plate 133 is coupled to the rotation shaft of the first driving motor 132, and a first link 131 is hinged to an edge of the first cam plate 133. The second cam plate 143 is coupled to the rotation shaft of the second driving motor 142, and the second link 141 is hinged to the edge of the second cam plate 143.

Accordingly, the first link 131 linearly reciprocates in the vertical direction by the rotation of the first drive motor 132, and the second link 141 is linear in the vertical direction by the rotation of the second drive motor 142. Reciprocating.

As the first link 131 linearly reciprocates in the vertical direction as described above, the plurality of connecting rods 112 hinged to the first link 131 are rotated about the rotation shaft 111a, respectively, and the second As the link 141 linearly reciprocates in the vertical direction, the plurality of connecting rods 122 hinged to the second link 141 also rotate about the rotation shaft 121a.

Accordingly, as the first link 131 moves and the connection rod 112 rotates about the rotation axis 111a, the plurality of reflecting plates 111 forming the first reflecting mirror 110 rotate to have the same angle to each other. As the second link 141 moves and the connection rod 122 rotates about the rotation shaft 121a, the plurality of reflecting plates 121 forming the second reflecting mirror 120 have the same angle to each other. Will rotate.

In the above description, although the first driving unit 130 and the second driving unit 140 are formed of the driving motors 132 and 142, the cam plates 133 and 143, and the links 131 and 141, respectively, the first driving unit 130 and The second driving unit 140 is formed of a plurality of driving motors coupled to the rotating shafts 111a and 121a of each of the reflecting plates 111 and 121, or driven by one driving motor and the driving motor, respectively, It may be formed of a belt which is connected to each other.

The first and second driving motors 132 and 142 are controlled by the controller 150, respectively.

The controller 150 may control the angle at which the first reflector 110 and the second reflector 120 rotate by controlling the first driving motor 132 and the second driving motor 142, respectively.

On the other hand, the photovoltaic device according to an embodiment of the present invention includes a data storage unit 160 that stores data about the position of the sun according to the date and time.

3 is a block diagram illustrating a relationship between the data storage unit 160, the control unit 150, and the first and second driving units 130 and 140 included in the photovoltaic device.

Referring to FIG. 3, the photovoltaic device includes a data storage unit 160 in which data of a location of a sun according to a date and a time is input in advance, and a controller 150 controlling various devices included in the photovoltaic device. And a first driving unit 130 and a second driving unit 140 for driving the rotation of the first reflecting mirror 110 and the second reflecting mirror 120, respectively.

The controller 150 controls the first driver 130 and the second driver 140 by reading the data stored in the data storage 160 and analyzing the loaded data.

In the present embodiment, the data storage unit 160 stores data in which the position of the sun according to the date and time is input in advance, so that the controller 150 controls the first and second drivers 130 and 140 based on the data. However, by attaching a sensor that can track the position of the sun without having the data storage unit will be able to control the motor while tracking the position of the sun.

Next, a control method of the above-described photovoltaic device will be described with reference to FIG. 4. 4 is a flowchart illustrating a control method of the above-described photovoltaic device.

In a method of controlling a photovoltaic device according to an embodiment of the present invention, the method includes: (S110) retrieving input data of a position of the sun, and rotating the reflector installed at the side where the sunlight is incident by analyzing the data ( S120 and a step (S130) of rotating the reflector installed on the opposite side of the sunlight incident.

Hereinafter, each step will be described in more detail. Hereinafter, in describing each step of the control method of the photovoltaic device, it will be described after assuming that the current sun is located in the east.

First, the controller 150 reads data regarding the position of the sun according to the date and time from the data storage unit 160 (S110).

Next, the controller 150 analyzes the data loaded from the data storage unit 160 to control the first driver 130 to cover the sunlight to the minimum by the first reflector 110 installed on the side where the sunlight is incident. The first reflector 110 is rotated to be used (S120).

More specifically, the light receiving unit of the double-sided light receiving type solar cell module 100 has sunlight in which an angle at which the width direction of the plurality of first reflecting plates 111 forming the first reflecting mirror 110 is formed on the ground. The first driving unit 130 is controlled to match the angle incident to the 105.

Accordingly, the light receiving efficiency of the light receiving unit 105 on the side of the sunlight incident on the double-sided light receiving solar cell module 100 can be improved.

In addition, the controller 150 analyzes the data loaded from the data storage unit 160 to control the second driving unit 140 so that the sunlight transmitted through the double-sided light receiving solar cell module 100 is transmitted to the second reflector 120. The second reflector 120 is rotated at an angle so that the amount reflected and reincident to the double-sided light-receiving solar cell module 100 is maximized (S130).

Alternatively, the second reflector 120 is rotated to control the second driving unit 140 so that the second reflector 120 installed on the side opposite to the side where the sunlight is incident is parallel to the double-sided light receiving solar cell module 100. You can also

On the other hand, the position of the sun changes with time, and FIGS. 5A to 5C show the position of the sun that changes with time of the day and the rotation angles of the first and second reflectors accordingly.

Rotation angles of the first reflector 110 and the second reflector 120 are controlled according to the control method of the above-described photovoltaic device, and FIGS. 5A, 5B, and 5C are respectively made according to the morning, noon, and afternoon of the day. Each of the first reflecting mirror 110 and the second reflecting mirror 120 shows an angle rotated.

As shown in FIG. 5A, since the sun is located in the east in the morning, the width direction of the first reflector 110 installed toward the east causes sunlight to enter the light receiving unit 105 of the double-sided light receiving solar cell module 100. The first reflector 110 is rotated to coincide with the direction, and the second reflector 120 installed toward the west reflects sunlight passing through the double-sided light receiving solar cell module 100 to the second reflector 120. After rotating to the maximum incident to the double-sided light receiving solar cell module 100.

As shown in FIG. 5B, since the sun is located at the south at noon, the amount of sunlight directly incident on the light receiving unit 105 of the double-sided light receiving solar cell module 100 is reduced.

When the sun is located in the south as described above, the first reflecting mirror 110 and the second reflecting mirror 120 reflect both the sunlight and the light receiving parts formed on both sides of the double-sided light receiving solar cell module 100. Rotated to the maximum incidence 105).

As shown in FIG. 5C, since the sun is located in the west in the afternoon, the width of the second reflector 120 installed toward the west causes sunlight to enter the light-receiving unit 105 of the double-sided light-receiving solar cell module 100. The second reflector 120 is rotated to match the direction, and the first reflector 110 installed toward the east receives both sides of the light after passing through the double-sided light receiving solar cell module to the first reflector 110. The solar cell module 100 is rotated to allow maximum incidence.

As such, the first reflecting mirror 110 and the second reflecting mirror 120 are installed to face the light receiving units 105 provided on both sides of the double-sided light receiving solar cell module 100, and the first reflecting mirror ( By adjusting the rotation angle of the 110 and the second reflecting mirror 120, the light receiving amount of the double-sided light receiving solar cell module 100 can be increased, so that the light conversion efficiency of the double-sided light receiving solar cell module 100 is improved.

Although the above has been described with respect to the photovoltaic device and the control method according to an embodiment of the present invention, the spirit of the present invention is not limited to the embodiments presented herein, those skilled in the art to understand the spirit of the present invention Within the scope of the present invention, other embodiments may be easily proposed by adding, changing, deleting, or adding components, but this will also fall within the scope of the present invention.

1 is a perspective view of a photovoltaic device according to an embodiment of the present invention.

Figure 2 is a side view of the photovoltaic device shown in FIG.

3 is a block diagram showing the relationship between devices installed in the solar cell apparatus shown in FIG.

4 is a flowchart illustrating a control method of the photovoltaic device shown in FIG. 1.

5a to 5c are views showing a change in the angle of rotation of the first reflector and the second reflector according to the position of the sun.

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

100: double-sided light receiving type solar cell module 110: first reflecting mirror

120: second reflecting mirror 130: first driving unit

140: second driving unit 150: control unit

160: storage unit

Claims (12)

A double-sided light-receiving solar cell module having light-receiving parts formed on both sides; A first reflecting mirror having a plurality of first reflecting plates rotatably installed at one side of the double-sided light receiving unit, the one side receiving the light receiving unit; A first driving part for rotating the plurality of first reflecting plates at the same angle to each other; A second reflecting mirror having a plurality of second reflecting plates rotatably installed on an opposite side of the first reflecting mirror about the double-sided light receiving solar cell module; And a second driving unit configured to rotate the plurality of second reflecting plates at the same angle with each other. delete delete The method of claim 1, The first driving unit and the second driving unit, respectively Drive motor, A cam plate coupled to the rotation shaft of the drive motor; One side is hinged to each of the plurality of reflecting plate and the other side is a photovoltaic device having a link is hinged to the edge of the cam plate. The method of claim 1, And a control unit for controlling the first and second driving units so that the first and second reflectors rotate at a predetermined angle according to the position of the sun. The method of claim 5, A photovoltaic device further comprising a data storage configured to store data regarding a position of the sun according to a date and time. The method of claim 1, The first reflecting plate and the second reflecting plate is a solar cell apparatus is formed of a plastic material. The method of claim 1, The double-sided light receiving solar cell module and a plurality of double-sided light receiving solar cell, Photovoltaic device comprising a transparent glass for fixing the position of the plurality of solar cells. The method of claim 1, The double-sided light receiving type solar cell module is a solar cell apparatus installed in the vertical direction on the ground. The method of claim 1, The double-sided light receiving type solar cell module is a photovoltaic device that is installed so that the light receiving portion facing in the east-west direction. Retrieving the input data of the sun's position according to season and time, Analyzing the data to rotate the reflector at a predetermined angle so that the reflector installed on the side where the sunlight is incident on the double-sided light-receiving solar cell module does not block the sunlight incident on the double-sided light-receiving solar cell module. Control method of photovoltaic device. The method of claim 11, In the double-sided light-receiving solar cell module, the solar reflector installed on the opposite side of the light incident side reflects the sunlight passing through the double-sided light-receiving solar cell module to condense on the double-sided light-receiving solar cell module. The control method of the photovoltaic device further comprising the step of rotating the reflector provided on the opposite side of the incident side at a predetermined angle.

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