KR102037591B1 - Solar power generating system on ginseng fields - Google Patents

Abstract

The present specification discloses a ginseng field-based photovoltaic power generation system that can efficiently use space. Photovoltaic power generation system according to the present specification, installed in a ginseng field and a plurality of supports installed at predetermined intervals; A photovoltaic panel supported by the support and installed inclined toward the south relative to the ginseng field; Garimmak received by the support and installed inclined toward the north relative to the ginseng field; And a solar duct supported by the support for supporting the screen and penetrating the screen.

Description

Ginseng field-based farming photovoltaic power generation system {SOLAR POWER GENERATING SYSTEM ON GINSENG FIELDS}

The present invention relates to a photovoltaic power generation system, and more particularly to a photovoltaic power generation system installed in a ginseng field.

Generally, when growing ginseng, a shading frame for shading is installed by using a wood or steel frame, and a shading facility is manufactured by installing a slanted sunshade for a long time. Such a ginseng field shielding film is to create a cultivation environment suitable for the setting of ginseng by securing adequate ventilation while blocking the sun. Recently, various types of steel frames have been proposed and used in consideration of structural stability and construction convenience in shading film support frames of ginseng fields. Light-shielding film support frame of ginseng field using such steel frame is generally repeatable, easy to construct and robust in structure, has the advantage of resisting heavy snow and strong wind in winter.

Meanwhile, as interest in environmentally friendly energy has recently increased, solar generators that do not need to use fossil fuels for power generation have become more and more widely spread. Conventionally, solar power generators have been installed on a small scale for self-sufficiency of electric energy in rural or mountainous areas, but recently, large-scale photovoltaic power generation facilities have been installed in accordance with changes in conditions such as access to grid parity. It has evolved to the point where it is directly used or sold.

As the photovoltaic power generation equipment has become large in size, a large-scale site or space for installing a solar power generation board is needed, and securing a low-cost site has emerged as an urgent task in order to increase the economic feasibility of photovoltaic power generation. In addition, as the size of photovoltaic facilities increases, the number of support frames for installing and supporting photovoltaic panels also increases, and the production cost of photovoltaic power generation facilities is increasing. However, it is not easy to secure a site or a space for installing a solar panel for a large-scale photovoltaic power generation facility, and a site on which a large solar panel is installed cannot be used for other purposes. A satisfactory solution is required in terms of economics of development and efficiency of land use.

Republic of Korea Patent Publication No. 2009-0123258

An object of the present disclosure is to provide a photovoltaic power generation system based on ginseng field that can efficiently use space.

The present specification is not limited to the above-mentioned task, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

Photovoltaic power generation system according to the present specification for solving the above problems, is installed in the ginseng field and a plurality of supports installed at predetermined intervals; A photovoltaic panel supported by the support and installed inclined toward the south relative to the ginseng field; Garimmak received by the support and installed inclined toward the north relative to the ginseng field; And a solar duct supported by the support for supporting the screen and penetrating the screen.

The photovoltaic duct is installed on the upper light collecting portion for collecting sunlight; A conduit unit configured to transmit sunlight collected through the condenser; A light emitting unit installed at a lower end to emit light transmitted through the conduit to the ginseng field; And an adjusting unit installed at the conduit unit to adjust the amount of light.

According to one embodiment of the present specification, the control unit may adjust the amount of light according to the degree of rotation of the blocking film.

According to another embodiment of the present specification, the control unit may adjust the amount of light according to the degree of insertion of the blocking film.

Photovoltaic power generation system according to the present specification, the temperature sensor for measuring the temperature of the ginseng field; And a control unit controlling the control unit according to the temperature value output from the temperature sensor.

Other specific details of the invention are included in the detailed description and drawings.

According to one aspect of the present specification, the conventional solar sharing is generally 25% in Japan and 30% of the domestic rice farming-based photovoltaic solar panels are installed and evenly divided so that the crops can grow enough However, the farm-type photovoltaic power generation of ginseng field is the same as the existing solar panel layout, so the amount of solar energy generation can be increased 3 to 4 times per unit area.

According to another aspect of the present specification, by installing a solar panel on a support of 3 meters or more in height can facilitate agricultural mechanization. In general, the warranty period of the solar panel is to achieve a long-term income stabilization of 20 years, and also to provide a height for the tractor to work in the mechanization of farmland.

According to another aspect of the present specification, by applying a high light adaptability of ginseng harvesting healthy ginseng to overcome the high temperature disorder, by constructing a ginseng production base without reducing the ginseng yield to increase the ginseng photosynthesis more than three times at high temperatures due to climate change Provide a cultivation environment for stable income growth.

According to another aspect of the present specification, agricultural aging, population decline, income stagnation due to declining value of crop cultivation, and plant cultivation change due to climate change help to solve the problem of insufficient ginseng cultivation technology.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is an exemplary view of a photovoltaic power generation system according to the present specification.
2 is an exemplary view of a solar duct according to an embodiment of the present specification.
3 is an exemplary view of a control unit according to an embodiment of the present specification.
4 is an exemplary view of an adjusting unit according to an embodiment of the present specification.

Advantages and features of the invention disclosed herein, and methods of achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various forms, and the present embodiments are merely provided to make the disclosure of the present disclosure complete, and those of ordinary skill in the art to which the present disclosure belongs. It is provided to fully inform the skilled person (hereinafter, "the person in charge") the scope of the present specification, the scope of the present specification is defined only by the scope of the claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present disclosure. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like elements throughout, and "and / or" includes each and all combinations of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used in a sense that can be commonly understood by those skilled in the art to which this specification belongs. In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It can be used to easily describe a component and its correlation with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when flipping a component shown in the drawing, a component described as "below" or "beneath" of another component may be placed "above" the other component. Can be. Thus, the exemplary term "below" can encompass both an orientation of above and below. The components can be oriented in other directions as well, so that spatially relative terms can be interpreted according to the orientation.

Ginseng is a semitone plant with a significantly lower photosaturation point than other crops. Therefore, sunlight beyond the light saturation point required for crop cultivation can be used for electric power generation. That is, energy is obtained by solar power generation without reducing the yield of the crops. However, unlike ginseng plants, ginseng requires a large amount of light at low temperatures and low amounts of light at high temperatures. In other words, ginseng has a cultivation characteristic that requires more light at low temperatures and decreases the amount of light required as the temperature rises, as opposed to the sunny plants that can grow normally under direct sunlight or with sufficient light. Therefore, it is impossible to control the amount of light according to the environmental temperature by adjusting only the interval of installation of the solar panel in the ginseng field, so even if the light saturation point required for ginseng growth is low, there is a problem of avoiding photovoltaic power generation for photovoltaic sharing.

Ginseng field-based photovoltaic power generation system according to the present specification is required for ginseng cultivation on the back of the solar panel (side not receiving sunlight in the cross section) on top of the general solar panel on the upper structure to completely block the sunlight It is characterized by having a light duct (Duct) that can control the amount of light. In addition, through the use of environmental sensors, such as temperature sensors, ginseng's high light adaptability is enhanced by increasing the amount of photosynthesis more than three times, and sharing with solar power generation without reducing the minimum yield.

1 is an exemplary view of a photovoltaic power generation system according to the present specification.

Referring to FIG. 1, the photovoltaic system 100 according to the present disclosure may include a plurality of supports 110, a photovoltaic panel 120, a shielding film 130, and a photovoltaic duct 140.

The plurality of support 110 is installed in the ginseng field may be installed at a predetermined interval.

The support 110 may be a minimum height of 3 meters or more, which is an environment in which farming equipment such as a tractor can work in a ginseng field. In addition, the upper structure that can be installed solar panels can be made horizontally or stepped horizontally according to the lower ground.

In order to simplify the installation process of the support 110 and to minimize the impact on the farmland can be a basic construction with a screw pile. The upper portion of the support 110 is structurally maximized the tension and compression force weatherproof in a large truss manner.

The photovoltaic panel 120 is supported by the support 110 and may be inclined toward the south based on the ginseng field.

The screening film 130 is supported by the support 110 and may be inclined toward the north based on the ginseng field.

The solar duct 140 is supported by a support for supporting the screening film 130 and may penetrate the screening film 130.

As mentioned above, ginseng is a half-colored plant and a low-temperature plant that require shading to control it because photosynthetic efficiency varies depending on season and time depending on temperature. By adjusting the amount of light can promote the growth of ginseng and also suppress the occurrence of diseases. However, when the amount of light is low, redness of ginseng increases, and soil growth and yield decrease with increasing soil hardness.

The physiological aspect of ginseng is the low activity of chloroplast and rubisco, which slows the production of chlorophyll-protein complex, resulting in very low carbon dioxide exchange. Therefore, in order to maintain optimal photosynthesis without causing stress, ginseng leaves must maintain photosynthetic conditions of 8,00 ~ 21,000 Rox for 18 ~ 20 ° C. The optimal temperature of ginseng germination / germination is 10 to 15 degrees, and the optimum temperature after the first leaf is 21 to 25 degrees. To this end, the solar duct 140 should be able to adjust the amount of light as needed.

2 is an exemplary view of a solar duct according to an embodiment of the present specification.

Referring to FIG. 2, the photovoltaic duct 140 according to the present specification is installed at an upper end of the condenser 141 for collecting solar light, and a conduit 142 for transmitting the collected sunlight through the condenser 141. ), A light emitting unit 143 installed at the bottom and emitting light transmitted through the conduit unit 142 to the ginseng field, and an adjustment unit 144 installed at the conduit unit 142 to adjust the amount of light. .

The light collecting unit 141 and the light emitting unit 143 may be implemented through a diffusion cover or a functional lens.

Ginseng, a half-negative plant and a low-temperature plant, grows nutrients when the optimum amount of light is 15,000-10,000 lux at 20 ~ 25 ° C after the leaves are grown. However, when the temperature of the ginseng field is high, the plant is increased in order to prevent the temperature of the plant from rising. If the transpiration is active, water and nutrients will be increased and ginseng will be weakened and should be avoided. Ginseng cultivation farmers over-distribute pesticides due to the high temperature disturbance caused by the cultivation of the ginseng oblique sunscreen cultivation with a narrow shading screen.

On the other hand, the photovoltaic power generation system according to the present disclosure, the solar duct 140 to block the sunlight and adjust the indirect sunlight required for ginseng growth, and to overcome the high temperature obstacle by adjusting the amount of light according to the temperature and also improve the high light adaptability to healthy ginseng Providing a growing environment for

The photosynthetic temperature of ginseng grown at 5% light of natural light (100,000 Rox) is 15 degrees, while the photosynthetic temperature of ginseng grown at 30% natural light is 20 degrees, which increases 5 degrees. It is a high light adaptability, the ability to adapt to high temperatures can be increased, and the amount of photosynthesis can be increased more than three times.

More specifically, according to the ginseng growth stage, the optimum temperature of the germination / germination stage, which is from the beginning of April to the end of April, may be controlled by the controller 144 to maintain 10 to 15 degrees. The optimum temperature of the post-lobe step may control the controller 144 to provide an optimal photosynthetic environment at 21 to 25 degrees Celsius. In other words, after the ginseng leaves (after the first leaf), the temperature is required to be up to 30% of natural light at temperatures below 15 degrees Celsius, and to allow sunlight to pass through at less than 5% of natural light at temperatures above 30 degrees in summer. To control.

According to one embodiment of the present specification, the adjusting unit 144 may adjust the amount of light according to the degree of rotation of the blocking film.

3 is an exemplary view of an adjusting unit according to an embodiment of the present specification.

Referring to FIG. 3, the adjusting unit 144 installed inside the solar duct 140 may be confirmed. The control unit 144 is a blocking film 144-1 having a shape capable of blocking all cross sections of the solar duct 140, a blocking film shaft 144-2 for rotating the blocking film 144-1, and It may be composed of a drive motor (144-3) connected to one end of the blocking film shaft (144-2). Specifically, when the blocking film 144-1 is vertically parallel to the solar duct 140, the blocking film 144-1 is completely open, and the solar duct 140 and the blocking film 144-1 are completely blocked at right angles.

According to another embodiment of the present specification, the control unit 144 may adjust the amount of light according to the degree of insertion of the blocking film.

4 is an exemplary view of an adjusting unit according to an embodiment of the present specification.

Referring to FIG. 4, the adjusting unit 144 installed in the solar duct 140 may be confirmed. The control unit 144 may be composed of a blocking film 144-1 which can be inserted from the side surface of the solar duct 140, and a drive motor 144-3 to insert the blocking film 144-1. . Specifically, when the blocking film 144-1 is outside the solar duct 140, it is fully open. When the blocking film 144-1 enters the solar duct 140, the blocking film 144-1 is partially open. Passing through the solar duct 140 is completely blocked.

The drive motors used in the rotary and insertion styles can use stepping motors to operate without additional feedback devices. In the rotation method, the drive motor and the barrier film can be directly connected to the barrier shaft and the gear.In the insertion method, the drive motor and the barrier film can be connected by a chain between the dummy motor 144-3-1 and the motor and the barrier film can be connected by the chain. .

On the other hand, the photovoltaic power generation system 100 according to the present disclosure has a temperature sensor (not shown) for measuring the temperature of the ginseng field and a controller (not shown) for controlling the control unit according to the temperature value output from the temperature sensor. It may further include.

The control unit will be described in more detail with respect to the amount of light to be provided to the ginseng field through the control unit according to the temperature.

The below temperature-saturation point reference table shows the ginseng saturation point of existing ginseng growing environment. More light than the saturation point may dry up the leaves or stems of ginseng, which can lead to certain diseases, and below that, the amount of photosynthesis is insufficient.

<Temperature-Photosaturation Point Reference Table>

Accordingly, the controller should control the amount of light below the light saturation point, and the specific target light amount is calculated as follows.

<Temperature-light conversion type>

For example, an example of practical application is that if the temperature is 18 degrees Celsius, the formula of the target light quantity is {L (low), a1}, a1 = 30,000 + (15-x) * 3,000.

In order to optimize the growth of ginseng, a photometric sensor (not shown) may be installed inside and outside the ginseng field to adjust the amount of light through the solar duct. Since ginseng optimizes the amount of light depending on temperature, the amount of light is adjusted according to the temperature-light conversion.

In addition, the change in growth environment temperature is the lowest lowest temperature of 15 degrees and the maximum temperature of 30 degrees is the upper limit. In other words, it is set to 15 degrees in the 13 degrees seams less than 25 degrees, and set to 30 degrees in the 32 degrees seams.

For example, if the temperature inside the ginseng field is 18 degrees Celsius, x = 18 and [30,000 + (15-x) * 3,000] = y ( low). The amount of light y (low) is [30,000-9,000] = 21,000. Therefore, when the temperature of ginseng field is 18 degrees Celsius, the optimal amount of light for ginseng cultivation is 21,000 Rox. The control unit 144 of the solar duct 140 is controlled so that the amount of light inside the ginseng field is 21,000 rox.

However, since most temperature sensors are expressed as 18.3 as non-integer rational numbers, such as 18 degrees C, they are converted to integers in temperature sensors expressed as rational numbers rather than integers. That is, the temperature conversion collected by the temperature sensor is 18 degrees Celsius if 17.5 ~ 18.4, and 19 degrees Celsius when 18.5 ~ 194.

In Korea, the appropriate sunshine hours for ginseng growth are as follows.

<Total Sunshine Time Table>

Ginseng is a half-tone plant, so it requires less sunlight, but an appropriate amount of light is necessary for photosynthesis. Long-term sunshine time in the summer hot season or spring dryer can lead to high-temperature dry damage and poor ginseng growth.In summer, rainy season can cause severe respiratory increase due to lack of sunshine. Production falls.

Ginseng, a half-tone plant, has a low amount of light for growth, but sunlight is the most important growth limiting factor. Ginseng's Sunshine Time Accumulation Table is categorized into three stages: May to June, July to August, and September to October. Ginseng is the root elongation and non-atmosphere in May-June, which has an average monthly temperature of 24 ~ 27 degrees Celsius, so the cumulative sunshine time requires 470 hours of sunlight. This requires. In the rainy season in July ~ August, when the average monthly temperature is 23 ~ 30 ° C, lack of sunshine can lead to poor root development and prevent high temperature disorders by suppressing sunlight in summer. 200 hours are required in September and October, which is around 25 degrees Celsius.

The calculation of sunshine hours is included in sunshine hours only when the amount of sunshine is more than 5,000 rox, and the cumulative time is the daily sunshine hour. In May-June, the cumulative daylight hours select the median value of daily sunshine hours of the last seven days and if less than (470/30), inform the ginseng manager of the sunshine hours. In July-August, the cumulative sunshine time selects the median value of daily sunshine hours of the last seven days (less than 170/30) and informs the manager of the ginseng field. In September-October, the cumulative sunshine time is the median value of sunshine hours of the last 7 days. If it is less than (200/30), the ginseng field manager is notified.

On the other hand, the control unit is a temperature measurement data characteristics, the generation cycle is short, generates a lot, and requires real-time processing, but for this purpose edge computing processing in the field in a non-telecommunication centralized area, such as ginseng field rather than continuously using network interworking costs Edge Computing is suitable. Edge computing transmits the data acquired by the sensor node (or sensor module) to the edge computing in the form of a message, and the transmitted message is received and filtered by the micro batch and stored in the history DB. Digital Twin integrates with the visualization application of the cloud (remote server), an external system of edge computing, and also transmits the processing result or status notification to the administrator. Edge computing for digital twins is important for business intelligence, which provides real-time environment data, the execution environment for digital twins, data storage and on-demand data. Digital Twin is updated for better results and sends decision results to the cloud.

While the embodiments of the present disclosure have been described with reference to the accompanying drawings, a person skilled in the art to which the present disclosure belongs may practice the present disclosure in other specific forms without changing the technical spirit or essential features. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

100: solar power system
110: support
120: solar power panel
130: screen
140: solar duct

Claims (5)

A plurality of supports installed in the ginseng field and installed at predetermined intervals;
A photovoltaic panel supported by the support and installed inclined toward the south relative to the ginseng field;
Garimmak received by the support and installed inclined toward the north relative to the ginseng field; And
Included by the support for supporting the screen, the solar duct penetrating the screen; includes,
The solar duct,
A light collecting unit installed at the top to collect sunlight;
A conduit unit configured to transmit sunlight collected through the condenser;
A light emitting unit installed at a lower end to emit light transmitted through the conduit to the ginseng field; And
And a control unit installed in the conduit to adjust the amount of light.
The control unit,
A blocking film that can block all cross sections of the solar duct;
A barrier layer for allowing the barrier to rotate;
A driving motor connected to one end of the blocking membrane shaft;
Adjust the amount of light according to the degree of rotation of the barrier film,
A temperature sensor for measuring the temperature of the ginseng field; And
And a controller for controlling the amount of light below a light saturation point of ginseng by controlling the control unit according to the temperature value output from the temperature sensor. delete delete delete delete

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