KR20210077898A - Portable generating system of vertical multi-layer solar cell array using reflecting solar - Google Patents

Abstract

The present invention relates to a vertically multi-layered mobile solar power system using reflected sunlight. According to the present invention, as compared to a method that a current planar fixed passive direct light solar power generating plant is constructed while occupying a larger area than unfolded solar panels, in relation to a solar power plant business, a method of constructing a vertically multi-layered mobile active reflected light solar power system in an area of 1 to 3 % of the current method can sufficiently achieve the performance of the current planar method in an accumulation concept of the solar power generation amount, and also, can more effectively improve the same. As a reflected light power plant is located in an inner space with a partition screen, such that the best one of various solar cell panels can be applied, and an optical technology and various elements in the same field are grafted, used, improved, and developed, such that specialized manufacturing and production in a factory can be performed, thereby further improving the power generation efficiency of a solar power plant than the present.

Description

TECHNICAL FIELD [0002] Portable generating system of vertical multi-layer solar cell array using reflecting solar

The present invention relates to a solar power plant construction type, and the current construction type is installed and fixed as a built-in by laying the solar panels, which are the core parts of this place, at an appropriate location and forming a predetermined inclination in a plane toward the solar light source. Therefore, in order to achieve proper capacity generation, the floor area for flat installation is occupied proportionally according to the capacity size. In the present invention, in the form of generating electricity from reflected light in a state in which the same solar panels are stacked at appropriate intervals in the vertical direction without laying them flat, only a place less than 1 to 3% of the current solar power plant occupied area is sufficient, It relates to a method of constructing a solar power plant that can even move simultaneously along a light source.

A photovoltaic power plant can be viewed as a building composed of a solar panel assembly, which is a solar cell semiconductor junction assembly that directly converts sunlight into electrical energy. The sunlight here should be direct sunlight (primary sunlight) incident directly from the sun, but the present invention is based on confirming and verifying that such direct sunlight can also generate electric energy as reflected light (secondary sunlight). .

To this end, the present inventor made a miniature model triangular structure as shown in Fig. 1. by using 6 10W capacity solar cell plates, a thin mirror for interior decoration wallpaper, and a 5mm thick foam board as the reflector. In this case, the solar cell plate 4 sheets were combined into 2 sheets on both top and bottom sides to make 1 sheet. A DC wattage meter with voltage and ampere watts displayed for performance verification. After securing a 12V small battery, a controller, and a light intensity measuring illuminometer, 6 solar panels were compared and measured with the same flat method as the present one over 10 times from mid-August to mid-November.

As a result, when the illuminance of sunlight was about 1000Lux, the flat method showed the highest peaks at 13.21V at 2.21A and 29.19W, whereas the invention method showed the highest peaks at 1.4A and 17.89W at 12.78V.

Comparing with the amount of electricity generated, the invention method was about 61% of the current planar method, but if it was a more precise model, it could be expected to be at least 70% level. The nominal maximum output by the planar method should be 0.58A x 6 sheets = 3.48A, but in the current experiment, it was at the level of 2.21A, and it was confirmed that the efficiency was about 63.5% of the nominal maximum output. In the test process, it is difficult to secure relatively uniform, stable, and continuous power generation due to the fact that sunlight moves and moves and because of the variability of changes in weather conditions in the sky, the power generation conditions also depend entirely on the primary sunlight incident environment of the place where the solar power plant is located. I also knew it would be.

A solar power plant uses the photoelectric effect that occurs as light is a kind of electromagnetic wave. The source of such light is only the primary solar light source, and it is said that the usage time is only about 3 hours a day on average based on a year.

Therefore, it is an object of the present invention to create a foundation that can induce and supplement the optimal condition so that the best output and performance of the solar power plant can be maintained when there is a light source.

The biggest characteristic of a solar light source is that it moves and moves, and the amount of insolation of the light source also varies according to seasons, weather conditions, time of day, and location.

Therefore, the present inventors have found that it is difficult to add artificial changes to the difference between the characteristics of the reflected light that is the primary solar light source and the reflected light that is the secondary solar light source, but the reflected light is possible. want to configure

According to the data, the ^{maximum power under the conditions of 1,000W/m 2} of insolation from the light source and the temperature of 25℃ is called the nominal maximum output, and the voltage and current at that time are called the nominal maximum output operating voltage and the nominal maximum output operating current. Radiation herein 1,000W / m ² when compared to a square viewing the area of the meter, which means that the lighting brightness of the illumination 10 100W incandescent sunlight maximum roughness is approximately 1,000 ~ 1,100 Lux being the intensity of the light source 1000 As W > 1,100Lux, it seems that the illuminance is higher than that of natural light.

When examining based on alimony from the viewpoint of improving the performance of photovoltaic generators, the current planar photovoltaic generators are fundamentally insufficient or partial to satisfy ^{the insolation intensity of the best light source (1,000W/m 2 ).} The reason is that the light source moves left and right, up and down, and the fixed solar panel panel structures cannot operate in response to it. In addition, it is judged that the best ambient temperature of 25℃ is maintained for only 2-3 months based on a year and 12 months due to seasonal temperature and weather changes. In this situation, the current planar solar power plant that produces renewable energy will be referred to as a primary solar natural light (direct sunlight) open type passive power plant.

In contrast, the solar cell plates of the photovoltaic power plant according to the present invention form a stacked structure in the vertical direction with an appropriate distance between the double-sided solar cell plates, which is also placed in a state of being wrapped in the inner space of the reflecting plate structure and having a partitioned shape. , because it uses reflected light, which can be called secondary sunlight, the amount of illuminance of the light source can be increased or decreased to some extent by extension of the reflector area, high-reflection multi-thin film treatment on the surface, and reflection prism treatment method. Maintaining the temperature around the plate at 25℃ Since the solar cell plates are placed in the partitioned internal space of the laminated structure, artificial temperature control of this space may be sufficiently possible. As such, as it is a power plant that can structurally have a photoelectric effect control function for improving power generation productivity of solar panels, it can be referred to as an active power plant with concentrated reflected light.

In addition, as reflected light, which is a secondary solar light source, can also generate a photoelectric effect, by incorporating optical technology, as many battery panels as possible can be installed in an appropriate space, so that maximum output can be generated with only a minimum amount of space. It is an object of the present invention to enable factory production and installation of an active unit power plant.

The present invention has a structure in which the current same single-sided solar cell plate form is changed to a double-sided solar cell plate form, and this is laminated at regular intervals, and a double-sided reflector divides the space in a diagonal direction between them. It is a structure in which double-sided solar cells are stacked in an overlapping manner even in the light-concentrated space.

It is a highly reflective plate made by grafting direct sunlight, which is the primary sunlight, with optical technologies such as high-reflection thin film, reflective prism, optical fiber, and filter in the space between the stacking space of these solar panels. It is to secure the amount of light and to ensure that the best photoelectric effect is generated and maintained. In particular, by applying a prism-coated high reflector, it can be reflected directly even at a narrow space angle, and the light condensed from dozens of hundreds of hemispherical direct light reflecting bowls is collected by a reflecting prism and connected to the optical fiber or waveguide through the connected optical fiber or waveguide. It can be divided and projected to become a light source that can generate electricity even in the same space.

By reducing the current direct sunlight flat fixed passive solar power plant and completing the development of a dense and mobile active solar reflective power plant, a site that occupies less than 1-3% of the site area occupied by the current flat photovoltaic power plant is sufficient. The decrease in power generation efficiency can be compensated for by the accumulated power generation due to mobility, and it is also possible to use solar panels that are inappropriate for outdoor use among various solar panels. Power generation efficiency can be expected, and it will be able to provide a foundation for the development of the optical device industry according to the manufacturing and production of specialized factories.

In terms of solar power plant construction cost, it is said that the current flat solar power plant installation structure construction cost accounts for about 60% of the total construction cost. This does not include land rents. This reflected light solar power plant has an optically treated reflector structure and mechanical devices and mounts for mobility, but it is judged that the cost increase is also less than the cost of the installation structure, and the solar panel, which is the core of the power plant, is also for indoor use on both sides. I think it can be supplied at a cheaper price than outdoor use.

Above all, it is possible to move and install anywhere in a space of less than one or two pyeong, and it is possible to secure performance quality according to standardized mass production, so it is judged that it can be of great help to the industry of securing renewable energy sources as a solar power plant product.

1 is a three-dimensional view and a photograph of a basic conception and actual experimental model of reflected solar power generation.
Figure 2 is a three-dimensional view of the reflection solar power generation body.
3 is a cross-sectional view of the entire configuration of a reflective solar power plant.
4 is a cross-sectional view of the second integrated integrated movement system for reflected sunlight.

The present invention will be described with reference to the accompanying drawings as follows.

The photovoltaic power plant body structure in the present invention is a rectangular structure, but as shown in the figure of FIG. ) has a triangular structure shape as a whole while creating a light container space (5) with the upper and lower covers (7/8), and on the upper surface of the upper cover (7) is another for converting direct sunlight into reflected sunlight. It is a composition in which one rectangular parallelepiped structure 11 is placed on top like a standing board.

Here, the reason why the left and right side reflectors 5 are spread at a 45° angle toward the front, which is the side of the solar light source, is because the sunlight incident from the light source is the same as the incident angle and the reflection angle on the reflection surface. This is because the reflected light reflected from the surface of the reflector with If the prism coating (9) is applied to the surface of the reflector, the reflected direct light can be obtained even at an angle of 11.25° narrower than the 45° angle.

The upper upper surface of the solar power plant in the shape of a triangular structure is a place open to sunlight. An element made with optical technology for the primary direct sunlight pouring therein, a large number of hemispherical high-reflection containers 12, a reflective prism 13 that can collect and reflect sunlight collected in the container in the opposite direction, this reflection The light from the prism is made secondary reflected light with an optical fiber or waveguide (15) that arrives at the destination by the principle of total reflection of light, and then passes through the rear of the rectangular power generation structure and integrates the light between the double-sided battery plates (1) at a narrow interval This is because a plurality of optical fiber waveguides can be collected in each space 6, so that they can be a light source for the upper and lower surfaces of the stacked double-sided solar cells 1 .

The biggest weakness of photovoltaic power plants is that it is very difficult to maintain the proper amount of sunlight for a long period of time, in which the photoelectric effect generation function of the photovoltaic panels can operate and maintain optimally.

Therefore, here, to help collect more primary sunlight and help to secure and maintain an appropriate level of secondary solar reflected light, the currently planned reflector is extended and expanded to increase the size of the reflected light space, and a separate third reflection-only structure There is also a method of additionally incidentally reinforcing the reflected direct sunlight in the reflected light space 5 on both sides of the photovoltaic power plant by adding it to a location at an appropriate distance.

In addition, solar light is a kind of electromagnetic wave and is classified in many ways according to its wavelength. Among the electromagnetic wave solar light of various wavelengths, it is said that ultraviolet light, that is, light in a wavelength band that generates the photoelectric effect in the solar panel more efficiently, is effective. Here, it is judged that it is possible to utilize differentiated solar light in a more efficient wavelength band by applying filter optical technology.

The above secondary solar reflective power plant is placed on the already commercialized equipment and mechanical facilities pedestal 17 so that it can move along with the center point of sunlight precisely aligned according to the mobility of the sun, which is the light source, so it is superior to flat solar power generation. I think the light source can be secured and maintained for a longer period of time.

In addition to this, if we look at the operating hours and duration of solar power plants and the utilization time of solar power sources, which are energy sources, based on 365 days a year, the period that can be operated is only 12.5%. The downtime factors will be night hours, rainy season, typhoons, clouds, snow and rain, fog, and even days with heavy fine dust.

Solar power plants are structurally vulnerable to external conditions such as typhoons, heavy rains, severe blizzards and fine dust. Therefore, for the safety maintenance, management, operation, and transport convenience of the power plant structure, the front opening sunlight incident window 14 of this secondary solar power plant is blocked with an ultra-thin fluororesin film (ETFE) material to protect the internal space, and The wing-shaped reflector structures are to be self-folding.

With reference to FIG. 2 as described above, a power plant model of an appropriate size is set, and a detailed description will be amplified. First, if the size of the solar panel is selected to be about 1,000 x 2,000, or 1,000 x 3,000mm, and the height is set to about 3,500mm including the pedestal, 3mm thick double-sided solar panels are spaced 250mm apart in the ?h state except for the pedestal height of about 600~700mm. , followed by a 50mm (6) narrow spacing standard, if placed to a height of 2,800mm, 38 panels can be installed, and a cuboid solar panel with a volume size of 1,000x3,000x2,810mm becomes a power generation space structure.

Here, in the 250-spaced space, a reflective plate (4) coated with a reflective prism in the diagonal direction spans at an angle of 11.25° and divides the cavity in half, and in the narrow space of 50 (6), optical fibers or waveguides are incident through the rear. It becomes a light-concentrated integrated space where a large number of reflected light beams are collected.

On both sides (3,000x2,810), 4,240x2,810 mm reflective plates are spread out like two wings at an angle of 45° to the side of the power generation space structure in the front direction to form a triangular structure with the upper and lower covers. In this case, the primary sunlight incident window on the front has a size of 7,000x2,810mm. If only the proper amount of sunlight can be supplied, the width of the left and right openings can also be reduced. In this case, a reflective prism may be coated on the reflective plate. If it is opened at an angle of 22.5°, it can be reduced by about 3,000mm.

Estimating the power generation capacity from the above configuration, the nominal output of a panel of the above size is about 570W, but the normal efficiency is about 60%. Adjusting it to 340W, the expected power generation is 340W x 38 sheets = 12,920W = 12.92KW/hr x 3hr/1 day = 38.76KW , 30 days/month x 38.76KW = about 1,163KW, an average of about 1,000KW per month can be expected.

1 ) Double-sided solar cell board 2 ) Single-sided solar cell board
3 ) First solar direct light reflector 4 ) Reflected light generation reflector
5 ) First reflected light space 6 ) Second reflected light concentration integrated space
7 ) Cover reflector on the top surface of the photovoltaic generator 8 ) Cover reflector on the bottom surface of the photoelectric generator
9 ) Prism-coated external reflector 10 ) Prism-coated internal reflector
11 ) Mounting stand for the second direct sunlight reflector 12 ) Hemispherical reflector
13 ) Reflected light collecting reflective prism 14 ) Ultra-thin fluororesin film (ETFE)
15 ) Fiber/waveguide 16 ) ESS (Energy Storage System)
17 ) Reflective solar power plant automatic movement device and pedestal

Claims (1)

In the construction of reflected light solar power plant
A power generation structure unit, which is a display assembly of rectangular and cuboidal solar cells by stacking solar cells, which are core power generation elements, as double-sided solar cells, and stacking them in a vertical direction with a certain interval between them;
Left and right external high-reflection plates or prism-coated high-reflection plates that divide the space by spreading left and right at an angle of 45° left and right in the front direction toward the solar light source at an angle of 45° from the center of the rear to both sides of the power generation structure. Including an external top and bottom reflector that becomes a cover partition in the form of connecting the two-sided prism-coated internal high reflectors that divide the space between the double-sided solar cells at a height interval of 1/4 length of the short side of the rectangular solar panel in a diagonal direction high reflector structure part;
a light-concentrated integrated spatial structure unit that collects the sun reflected light from the hemispherical reflective bowl with a reflective prism and collects and illuminates the second reflected light incident through an optical fiber or a waveguide;
A partition that divides the inner and outer space with a transparent film material such as a thin ultra-thin fluororesin film (ETFE) on the front of the direct sunlight catching window with the ends of the external high-reflecting plate spread out in the front direction on the front and left and right sides of the power generation structure part of the shade structure;
A large number of reflective unit elements consisting of optical fibers or waveguides connected to a hemispherical high-reflection bowl and high-reflection prism, located on and around the upper surface of the rectangular rectangular parallelepiped power generation structure and both external reflection plate structures, support for efficient conversion of direct sunlight into solar reflected light. a reflective unit element assembly device supporting structure unit providing a;
The reflective photovoltaic power plant structure allows the glare window opening to move automatically along the central axis of the sun, the light source, and the left and right external reflector structures and the glare window cover are automatically folded for structural safety of the power plant structure during times when the solar light source cannot be used. Mechanisms and supporting structures that do;
A third solar reflector structure part of various types that can supplement and additionally increase the amount of light of the first second reflected sunlight at an appropriate distance in front of the reflective solar power plant;
A method of constructing a reflective photovoltaic power plant made by connecting and combining the above structures or a reflective photovoltaic power plant consisting only of the second reflective photovoltaic power generation type structures

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