KR20200069448A - The angle controlable photovoltaics system adjusting sun elevation - Google Patents

Abstract

A photovoltaic system for controlling an angle according to a solar altitude according to the present invention comprises: a solar module having a cuboid shape to generate electric energy using input solar energy; a solar altimeter mounted at the solar module to measure an input angle of a solar light with respect to the solar module; a lower basic stone installed at a ground facing four corners of the solar module; fixing supports having a bar shape of a fixed length to be installed at forward left and right corners of the solar module in a ratio of 1:1, a top end of the fixing support hinged to the forward left and right corners of the solar module, and a bottom end of the fixing support fixed to the lower basic stone; and height control supports having a bar shape of a changeable length to be installed at rear left and right corners of the solar module in a ratio of 1:1, a top end thereof hinged to the rear left and right corners of the solar module, and a bottom end thereof fixed to the lower basic stone. After an input angle of solar light with respect to the solar module is measured using the solar altimeter, an inclined angle of the solar module is controlled by controlling a length of the height control supports so that the input angle of solar light with respect to the solar module can be controlled.

Description

The angle controlable photovoltaics system adjusting sun elevation}

The present invention relates to a photovoltaic power generation system that can adjust the angle according to the solar altitude, more specifically, after measuring the angle of incidence of sunlight to the solar module, and then adjusting the inclination angle of the solar module to enter the sunlight The present invention relates to a photovoltaic power generation system capable of adjusting an angle according to a solar altitude that can adjust an angle.

Recently, due to global environmental problems, exhaustion of fossil energy, waste disposal after nuclear power generation, and location selection due to the construction of new power plants, interest in renewable energy is increasing, and among them, solar cells, which are non-polluting and infinite energy sources Research and development of is being actively conducted at home and abroad.

At this time, the solar cell is a solar cell that converts sunlight into electrical energy using the properties of a semiconductor, and solar power generation to obtain electrical energy after rotating the turbine using solar heat, the solar cell is generally Refers to the solar cell.

The solar cell usually has a junction structure of a P-type semiconductor and an N-type semiconductor, such as a diode.

When sunlight enters the solar cell, a current flows through the solar cell due to the interaction of the sunlight and the solar cell, and the solar cell generates electrical energy.

Several solar cells arranged in the form of a checkerboard are connected in series with each other to be manufactured as a set of solar modules.

On the other hand, the altitude of the sun is changed according to the season, whereas the conventional solar module is fixed at the support in a state inclined at a certain angle, so there is a problem that the power generation efficiency is uneven in each season.

On the other hand, as the prior art of the present invention, a utility model registration number "20-0481244", "Fixed variable solar power device using a hydraulic cylinder" was filed and registered, fixed variable solar power device using the hydraulic cylinder The light collecting plate module is installed in a rectangular frame-shaped module guide to collect sunlight; A bar-shaped fixing member fixedly installed in a horizontal state on a rear upper portion of the light collecting plate module; A rotating member fixedly installed in a horizontal state on the rear lower portion of the light collecting plate module, and rotating shafts protruding at both ends of a bar-shaped body, rotatably installed at a point having a certain height from the ground via a lower support; And a hydraulic cylinder having one end coupled to the upper support fixed to the ground, the other end coupled to the fixing member, and adjusting the angle of the light collecting plate module by varying the length of the plunger through a pressure adjusting nozzle.

Republic of Korea Patent Registration No. "10-1200088" (2012.11.12) Republic of Korea Utility Model Registration Number "20-0481244" (2016.09.05)

Accordingly, the present invention is to adjust the angle according to the solar altitude, which can increase the power generation efficiency of the solar module by easily adjusting the inclination angle of the solar module in accordance with the altitude of the sun changing with the season to solve the above problems It is an object of the present invention to provide this possible solar power system.

The photovoltaic power generation system capable of adjusting the angle according to the solar altitude according to the present invention for achieving the above object includes a solar module having a rectangular parallelepiped shape generating electric energy using the incident solar energy; A solar altimeter mounted on the solar module to measure the angle of incidence of sunlight to the solar module; Lower foundation stones respectively installed on the ground facing the four corners of the solar module; A fixed length bar is installed 1:1 on the front left and right corners of the photovoltaic module, the top is hinged to the front left and right corners of the photovoltaic module, and the bottom is fixedly installed on the bottom base stone. ; And a bar in which the length is adjusted to be installed 1:1 on the left and right corners of the photovoltaic module, the top is hinged to the rear left and right corners of the photovoltaic module, respectively, and the bottom is on the lower base stone. It is made of a fixed height-adjustable support, measuring the angle of incidence of sunlight to the solar module using the solar altimeter, and then adjusting the length of the height-adjustable support to adjust the tilt angle of the solar module. Adjust the angle of incidence of sunlight to the solar module.

The solar power generation system capable of adjusting the angle according to the solar altitude according to the present invention having such a structure measures the incident angle of the sunlight to the solar module using the solar altimeter installed in the solar module, and then the left and right sides of the solar module The angle of incidence of sunlight can be adjusted by adjusting the height of the height-adjustable support supporting the rear corner.

Therefore, the present invention can easily increase the power generation efficiency of the solar module because the tilt angle of the solar module can be easily adjusted according to the altitude of the sun that changes depending on the season.

Figure 1 is a combined perspective view of the present invention,
Figure 2 is an exploded perspective view of the present invention,
Figure 3 is a longitudinal cross-sectional view of the solar module equipped in the present invention,
4 is a longitudinal sectional view of a solar cell.

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

The solar power generation system capable of adjusting the angle according to the solar altitude according to the present invention, as shown in FIGS. 1 to 2, is a rectangular parallelepiped solar module (1) generating electrical energy using incident solar energy and; A solar altimeter 6 mounted on the photovoltaic module 1 to measure the angle of incidence of sunlight to the photovoltaic module 1; Lower foundation stones 2 respectively installed on the ground facing the four corners of the solar module 1; A fixed length bar is installed 1:1 on the front left and right corners of the photovoltaic module 1, and the upper ends are respectively hinged 3 on the front left and right corners of the photovoltaic module 1, and at the bottom. A fixed support 5 fixedly installed on the lower foundation stone 2; And a bar (Bar) in which the length is adjusted is installed 1:1 on the left and right corners of the photovoltaic module (1), and the top of each hinge (3) (Hinge) at the rear left and right corners of the photovoltaic module (1) ) Is composed of a height adjustment support (4) that is coupled and the bottom is fixed to the lower foundation stone (2), using the solar altimeter (6) to measure the angle of incidence of sunlight to the solar module (1), , By adjusting the length of the support for height adjustment (4) to adjust the inclination angle of the solar module (1) to adjust the angle of incidence of sunlight to the solar module (1).

The support for height adjustment (4) is a cylindrical bar (Bar) erected in a vertical direction, as shown in Figure 2, the lower end is fixed to the lower foundation stone (2), and the lower support (41) with threads on the outer circumferential surface. , As a bar erected in the vertical direction, the upper end is a hinge (3) coupled to the rear left corner or rear right corner of the photovoltaic module (1) and the lower support fitting hole is fitted with the lower support (41) on the bottom surface ( 421) is equipped with an upper support (42), and screwed to the threads of the lower support (41) for adjusting the height of the lower support (41) along the threads of the lower support (41) in the upper or lower direction Consists of a nut 43, when the height adjustment nut 43 is rotated in the upper direction of the lower support 41, the height adjustment nut 43 pushes the upper support 42 to raise the support for the height adjustment 4 While the length of) is extended, when the nut for height adjustment supporting the upper support 42 is rotated in the lower direction of the lower support 41, the upper support 42 is lowered and the height adjustment support is supported. The length of (4) is reduced.

On both sides of the height-adjusting nut 43, a nut rotation handle 44 in the form of a bar is mounted.

The hinge (3), as shown in Figure 2, protruding from the top of the height-adjustable support (4) or the fixed support (5), the top is round in a semi-circular shape (Round) and the first hinge shaft hole ( 311) the upper connecting piece 31 is penetrated; The bottom of the photovoltaic module (1) is sandwiched between the upward connecting piece (31) between them and protrudes in an 11-shape shape, and the bottom is rounded in a semicircular shape and communicates with the first hinge shaft hole (311) on the side. A downward 11-character connecting piece 32 through which the second hinge shaft hole 321 is penetrated; And a hinge shaft 33 inserted into the first hinge shaft hole 311 and the second hinge shaft hole 321 so that the downward 11-character connecting piece 32 is axially rotated while being fixed to the upward connecting piece 31. It includes.

The solar module 1, for example, as shown in Figure 3, the solar cell 11 for generating electrical energy using the incident sunlight, and the electricity generated from two or more solar cells 11 Ribbon wire 12 connecting two or more solar cells 11 in series or parallel to collect them together, and electricity generated from the solar cells 11 connected in series or parallel by the ribbon wires 12 A busbar to be transmitted by a power cable connected to the solar module 1, the solar cell 11 and the ribbon wire 12, and disposed under the bus bar, a backsheet 15 and the solar cell 11 A lower EVA (Ethylene Vinyl Acetate) sheet 14, which protects the solar cell 11 from moisture, foreign substances, and external environment by adhering to it, disposed under the lower EVA sheet 14, and generating efficiency of the solar cell 11 The back sheet 15 reflecting the sunlight transmitted through the solar cell 11 in the direction of the solar cell 11 again, the solar cell 11 and the ribbon wire 12 and the bus bar are stacked to increase the outside An upper EVA (Ethylene Vinyl Acetate) sheet (16) protecting the solar cell (11), ribbon wire (12), and busbar from the environment, disposed on the upper EVA sheet (16), and the solar cell (11) from an external environment To protect and transmit the incident sunlight (Glass), the same color as the solar cell 11 on the underside of the glass 17 facing the ribbon wire 12 and the bus bar 13 A color masking member 18 that is coated so that the ribbon wire 12 and the bus bar appear in the same color as the solar cell 11 when the solar module 1 is viewed from the outside; And a fluorine resin 19 overlying the glass 17 to prevent the holding component from adhering to the surface of the photovoltaic module 1 and preventing the photovoltaic module 1 from turning yellow over time. It can be done.

The solar cell 11 is, for example, as shown in Figure 4, a p-type semiconductor layer and i-type semiconductor layer n-type semiconductor layer is a structure in which a photoelectric conversion module that generates electrical energy from the incident sunlight. (111) and the bottom surface of the photoelectric conversion module 111 is attached to the top surface of the photoelectric conversion module 111 to reflect and reflect back the reflected sunlight from the photoelectric conversion module 111 back to the photoelectric conversion module 111 It is (Texturing) and is in electrical contact with the p-type semiconductor layer and is used as a positive (+) electrical contact, a first TCO (Transparent Conductive Oxide) layer 112, and the photoelectric conversion module 111 is adhered to the bottom surface of the photoelectric In order to refract the sunlight transmitted through the conversion module 111 back to the photoelectric conversion module 111, the upper surface is texturized, in electrical contact with the n-type semiconductor layer, and used as a negative (-) electrical contact. It includes a second TCO (Transparent Conductive Oxide) layer 113.

The p-type semiconductor layer is doped with impurities of a trivalent element in silicon as a pure material, and the n-type semiconductor layer is doped with impurities of a pentavalent element in silicon as a pure material.

As the trivalent element, for example, boron (B), gallium (Ga), or indium (In) is used.

As the pentavalent element, for example, phosphorus (P), arsenic (As), or antimony (Sb) is used.

The i-type semiconductor layer is depleted between the p-type semiconductor layer and the n-type semiconductor layer, an electric field is generated, and holes and electrons generated from the photoelectric conversion module 111 by sunlight are n-type semiconductor layer by the electric field. Or p-type semiconductor layer.

The color masking member 18 is a mixture containing a black pigment and having an adhesive solute and a solvent in which the solute is diluted.

The solute is a pigment dispersion containing a black pigment (Millbase), a crosslinking agent (Cross-linker) connecting the black pigments to each other, a binder polymer (Binder Polymer) to connect and fix the black pigments connected to each other by the crosslinking agent, the color masking Additive that adds tack to the member 18, a photo-initiator for initiating a photopolymerization reaction, and the surface tension of the color masking member 18 applied to the underside of the glass 17 Contains surfactants that reduce.

The content of the solute in the color masking member 18 is 20% by weight (wt%), and the content of the solvent is 80% by weight (wt%).

In addition, the content of the pigment dispersion in the total solute of the color masking member 18 is 50 to 90% by weight (wt%), the remaining crosslinking agent and the binder polymer, excluding the pigment dispersion in the total solute of the color masking member 18, The total content of additives, photoinitiators, and surfactants is 10 to 50% by weight (wt%).

The crosslinking agent is an acrylate having a plurality of functional groups, the binder polymer is an epoxy acrylate or a polyacrylate, and the additive is alkoxy or epoxy silane Is used.

The photoinitiator is an oxime-based material, and the surfactant is a polyether-modified dimethylpolysiloxane copolymer.

The solvent is propylene glycol monomethyl ether acetate (PGMEA: Propylene Glycol Monomethyl Ether Acetate) or cyclohexanone (Cyclohexanone).

The pigment dispersion is a mixture of a black pigment, a color pigment, and a dispersant to help the black pigment and the color pigment diffuse.

The dispersing agent is a polyurethane (Polyurethane) or polyacrylate (Polyacrylate) is used.

The black pigment is an organic material having low conductivity, and the content of the black pigment is 50 to 70% by weight (wt%) of the total solute of the color masking member 18.

The color pigment is a pigment that generates either red, green, or blue color.

The pigment dispersion contains two or more color pigments of a red color pigment, a green color pigment, or a blue color pigment to compensate for the black color expressed by the black pigment.

The total content of the two or more color pigments is 10 to 30% by weight (wt%) of the total solutes of the color masking member 18.

The pigment dispersion contains a small amount of carbon black (CB) to compensate for black.

The content of the carbon black is less than 10 weight ratio (wt%) of the total solute of the color masking member 18.

The carbon black lowers the dielectric constant of the color masking member 18 and increases the resistance of the color masking member 18.

The backsheet 15 is equipped with a TCO (Transparent Conductive Oxide) layer, which is surface-textured (Texturing), to prevent light from entering through the solar cell 11, and traps light in the solar cell 11 Will be.

The solar power generation system capable of adjusting the angle according to the solar altitude according to the present invention made of such a structure uses the solar altimeter 6 installed in the solar module 1 to measure the incident angle of the sunlight to the solar module 1. After measuring, the incident angle of sunlight can be adjusted by adjusting the height of the height-adjustable support 4 that supports the left and right rear corners of the solar module 1.

Accordingly, the present invention can easily adjust the angle of incidence of the photovoltaic module 1 according to the altitude of the sun that changes depending on the season, thereby increasing power generation efficiency of the photovoltaic module.

1. Solar module 11. Solar cell
111. Photoelectric conversion module 112. First TCO layer
113. Second TCO layer 12. Ribbon wire
14. Lower EVA sheet 15. Back sheet
16. Upper EVA sheet 17. Glass
18. Color masking member 19. Fluorine resin
2. Lower base stone 3. Hinge
31. Upward connecting piece 311. 1st hinge shaft hole
32. Downward 11-way connecting piece 321. 2nd hinge shaft hole
33. Hinge shaft 4. Height adjustment support
41. Lower support 42. Upper support
421. Lower support fitting hole 43. Height adjustment nut
5. Fixed support 6. Solar altimeter

Claims (4)

A rectangular parallelepiped solar module (1) generating electrical energy using the incident solar energy;
A solar altimeter 6 mounted on the photovoltaic module 1 to measure the angle of incidence of sunlight to the photovoltaic module 1;
Lower base stones 2 respectively installed on the ground facing the four corners of the solar module 1;
A fixed length bar is installed 1:1 on the front left and right corners of the photovoltaic module 1, and the upper ends are respectively hinged 3 on the front left and right corners of the photovoltaic module 1, and at the bottom. A fixed support 5 fixedly installed on the lower foundation stone 2;
And a bar (Bar) in which the length is adjusted is installed 1:1 on the left and right corners of the photovoltaic module (1), and the top of each hinge (3) (Hinge) at the rear left and right corners of the photovoltaic module (1) ) Is combined and consists of a support for height adjustment (4), the lower end being fixed to the lower foundation stone (2),
Using the solar altimeter (6) to measure the angle of incidence of sunlight to the solar module (1), and then adjust the length of the height adjustment support (4) to determine the tilt angle of the solar module (1) Solar power generation system that can adjust the angle according to the solar altitude to adjust the incident angle of the sunlight to the solar module (1) by adjusting.
According to claim 1,
The support for height adjustment (4) is a cylindrical bar (Bar) erected in a vertical direction, the lower end is fixed to the lower foundation stone (2), and the lower support (41) with threads on the outer circumferential surface;
As a bar erected in a vertical direction, the upper end is coupled to the hinge 3 on the rear left corner or the rear right corner of the solar module 1, and the lower support fitting hole 421 into which the lower support 41 is fitted on the bottom surface ) Equipped upper support (42);
And a screw 43 for height adjustment which is screwed to the threads of the lower support 41 and moves in the upper or lower direction of the lower support 41 along the threads of the lower support 41,
On both sides of the height-adjusting nut 43, a nut rotation handle 44 in the form of a bar is mounted,
When the height adjustment nut 43 is rotated in the upper direction of the lower support 41, the height adjustment nut 43 pushes the upper support 42 to extend the length of the height adjustment support 4 , When the height adjusting nut 43 supporting the upper support 42 is rotated in the lower direction of the lower support 41, the length of the support 4 for height adjustment is reduced while the upper support 42 is lowered. Solar power generation system that can be adjusted according to the solar altitude, characterized in that.
According to claim 1,
The hinge (3) protrudes from the top of the height-adjustable support (4) or fixed support (5), the upper end is round (Round) in a semi-circular shape, the first hinge shaft hole (311) on the side through the connecting piece ( 31) and;
The bottom of the photovoltaic module (1) is sandwiched between the upward connecting piece (31) between them and protrudes in an 11-shape shape, and the bottom is rounded in a semicircular shape and communicates with the first hinge shaft hole (311) on the side. A downward 11-character connecting piece 32 through which the second hinge shaft hole 321 is penetrated;
And a hinge shaft 33 inserted into the first hinge shaft hole 311 and the second hinge shaft hole 321 so that the downward 11-character connecting piece 32 is axially rotated while being fixed to the upward connecting piece 31. Solar power generation system capable of adjusting the angle according to the solar altitude, comprising a.
According to claim 1,
The solar module 1 is a solar cell 11 for generating electrical energy using the incident sunlight, and
Ribbon wire 12 connecting two or more solar cells 11 in series or in parallel to collect electricity generated from two or more solar cells 11 together,
A busbar that collects electricity generated from the solar cells 11 connected in series or in parallel by the ribbon wire 12 and transfers them to a power cable connected to the solar module 1,
The solar cell 11 and the ribbon wire 12 and a lower portion disposed under the bus bar to adhere the back sheet 15 and the solar cell 11 and protect the solar cell 11 from moisture, foreign matter, and external environment EVA(Ethylene Vinyl Acetate) sheet(14),
A back sheet 15 disposed under the lower EVA sheet 14 and reflecting sunlight transmitted through the solar cell 11 back to the solar cell 11 in order to increase power generation efficiency of the solar cell 11,
The solar cell 11, the ribbon wire 12, and the upper EVA (Ethylene Vinyl Acetate) sheet 16 which is laminated on the bus bar to protect the solar cell 11, the ribbon wire 12 and the bus bar from the outside environment,
Glass 17 is disposed on the upper EVA sheet 16 to protect the solar cell 11 from the external environment and transmit incident sunlight.
The same color as the solar cell 11 is applied to the bottom surface of the glass 17 facing the ribbon wire 12 and the bus bar, and when the solar module 1 is viewed from the outside, the ribbon wire 12 and A color masking member 18 that makes the bus bar look the same color as the solar cell 11;
And a fluorine resin 19 overlying the glass 17 to prevent the holding component from adhering to the surface of the photovoltaic module 1 and preventing the photovoltaic module 1 from turning yellow over time. Solar power generation system that can be adjusted according to the solar altitude, characterized in that made.

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