KR102276938B1 - Cable supported photovoltaic power generation system for agriculture - Google Patents

Abstract

A plurality of rows of support cables are fixed to a support bar provided on an upper portion of a pair of support frames spaced apart from each other in the lateral direction, and a plurality of solar panels are arranged to be spaced apart from each other in the lateral direction between front and rear adjacent support cables, It is about a cable-supported agricultural solar power generation system that can reduce the influence of wind by sharing a supporting cable between neighboring rows of solar panels, and can secure sufficient sunlight with a simple structure, so that there is no hindrance to crop cultivation.
The present invention is composed of a plurality of main posts spaced apart from each other in the longitudinal direction and a support bar provided on the plurality of main posts, a pair of support frames provided to be spaced apart from each other in the lateral direction; a plurality of rows of support cables fixed to the support bars on both sides; and a plurality of photovoltaic panels arranged to be spaced apart from each other in the lateral direction to be coupled between each supporting cable adjacent to the front and rear, and alternately disposed with the adjacent rows; Each photovoltaic panel shares a support cable with a photovoltaic panel of a neighboring row, so that each support cable is continuously connected in the longitudinal direction by the photovoltaic panel, and the support cable is arranged in a zigzag up and down cross section. It is characterized in that the photovoltaic panels of adjacent rows are formed to be inclined in opposite directions to each other, so that they behave integrally.

Description

Cable supported photovoltaic power generation system for agriculture}

A plurality of rows of support cables are fixed to a support bar provided on an upper portion of a pair of support frames spaced apart from each other in the lateral direction, and a plurality of solar panels are arranged to be spaced apart from each other in the lateral direction between front and rear adjacent support cables, It is about a cable-supported agricultural solar power generation system that can reduce the influence of wind by sharing a supporting cable between neighboring rows of solar panels, and can secure sufficient sunlight with a simple structure, so that there is no hindrance to crop cultivation.

Recently, as interest in energy business using new and renewable energy resources increases, interest in solar power generation, an eco-friendly energy resource, is also steadily increasing.

Solar power generation is a power generation method that directly converts sunlight into electrical energy using solar cells, and has the advantage of no pollution because there is no concern about resource depletion and no environmental pollutants are emitted.

In particular, in recent years, there is a limit to securing a site for installing a solar panel constituting a solar cell, and interest and demand for agricultural coexistence solar power generation that utilizes existing farmland to cultivate crops and generate solar power in parallel is increasing. A related policy is being established.

In order to support the solar panel, a frame support structure such as Patent Registration No. 10-1909857 has been widely used in the past (FIG. 1).

However, such a frame support structure is inefficient in material utilization due to its complex configuration.

In addition, there are many joints between the members, so the construction cost is high, and the spacing between the columns is tight, which is disadvantageous to the utilization of the lower space.

In addition, when installed on soft ground, there is a possibility that the frame and solar panel may be distorted due to uneven subsidence of the ground. Therefore, in order to prevent this phenomenon, the cost of the foundation or piles is excessively generated, such as the cost of the foundation construction becomes larger than the construction cost of the upper structure.

And in general, solar panels are continuously installed in the lateral direction (east-west direction). However, in the case of the conventional frame support structure, there is very little change in the altitude of the sun during the day in summer, so there is no choice but to generate a shaded area under the solar panel all day, which inevitably leads to a decrease in crop yield.

Moreover, even if a plurality of solar panels are installed to be spaced apart from each other, conventionally, solar panels are installed side by side, so there is a part where there is a constant shade despite a change in solar altitude, so that more than a certain amount of uniform sunlight is secured for the entire farmland area There is a limit to

On the other hand, as shown in Figure 2, there is a method of supporting a solar panel by a cable support structure (Registration Patent No. 10-1273292).

The cable support structure requires less material, and the joint construction is simple, and has little effect on the solar panel due to differential settlement.

However, there is a problem in that there is a lot of shaking due to the wind, and excessive tension is generated in the support cable, which increases the horizontal force at the point.

In order to solve the above problems, the present invention is to provide a cable-supported farming type solar power generation system that has a simple structure and can secure sufficient amount of sunlight without hindering the cultivation of crops.

An object of the present invention is to provide a cable-supported farming type solar power generation system that can reduce the influence of the wind on the supporting cables.

The present invention according to a preferred embodiment is composed of a plurality of main posts spaced apart from each other in the longitudinal direction and a support bar provided on the plurality of main posts, a pair of support frames provided to be spaced apart from each other in the lateral direction; a plurality of rows of support cables fixed to the support bars on both sides; and a plurality of photovoltaic panels arranged to be spaced apart from each other in the lateral direction to be coupled between each supporting cable adjacent to the front and rear, and alternately disposed with the adjacent rows; Each solar panel shares a support cable with a photovoltaic panel of a neighboring row, so that each support cable is continuously connected in the longitudinal direction by the solar panel, and the support cable is arranged in a zigzag up and down cross section. It provides a cable-supported farming type solar power generation system, characterized in that the adjacent rows of solar panels are formed to be inclined in opposite directions to each other and behave integrally.

The present invention according to another preferred embodiment provides a cable-supported farming type photovoltaic power generation system, characterized in that the instantaneous spacing of the photovoltaic panels adjacent to each other in the transverse direction is at least twice the width of the photovoltaic panel.

delete

delete

According to the present invention, there are the following effects.

First, a plurality of rows of support cables are fixed to a support bar provided on an upper portion of a pair of support frames spaced apart from each other in the lateral direction, and a plurality of solar panels are arranged to be spaced apart from each other in the lateral direction between the support cables adjacent to the front and rear. Accordingly, in a simple structure, since the solar panels of adjacent rows share a support cable with each other, each support cable is continuously connected by the solar panel and can move integrally. Therefore, it is easy to construct, and it is possible to prevent vibration or lifting of the solar panel due to wind.

Second, since a plurality of photovoltaic panels provided between the support cables adjacent to the front and back are arranged to be horizontally spaced apart from each other, even in the case of a small change in solar altitude such as in summer, the amount of sunlight is evenly distributed in all parts of the farmland according to the change in the solar azimuth during the day. can be obtained Therefore, there is no hindrance to the cultivation of crops.

Third, when the support cables are arranged in a zigzag up and down cross-section so that the photovoltaic panels in the adjacent rows are inclined in opposite directions, displacement occurs in the opposite directions while the photovoltaic panels in the adjacent rows share the support cables. Accordingly, the displacement of the solar panels in the adjacent row is canceled to prevent vibration or noise, and it is possible to naturally clean dust or the like loaded on the top of the solar panel or to prevent snow accumulation on the top of the solar panel.

1 is a perspective view showing a solar panel support state by a conventional frame support structure.
Figure 2 is a perspective view showing a solar panel support state by a conventional cable support structure.
Figure 3 is a perspective view showing the present invention cable-supported farm type solar power generation system.
Figure 4 is a perspective view showing the coupling relationship of the present invention cable-supported farming type solar power generation system.
5 is a perspective view illustrating a coupling relationship between a support cable and a solar panel.
Figure 6 is a plan view showing the present invention cable-supported farm type solar power generation system.
7 is a side view showing a coupling relationship between a support cable and a solar panel.

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

Figure 3 is a perspective view showing the present invention cable-supported farm type solar power generation system, Figure 4 is a perspective view showing the coupling relationship of the present invention cable-supported farm type solar power generation system, Figure 5 is a support cable and the sun It is a perspective view which shows the coupling relationship of a light panel.

3 and the like, the present invention cable-supported farming type solar power generation system includes a plurality of main posts 11 and a plurality of main posts 11 spaced apart from each other in the longitudinal direction, and a support bar 12 provided on the plurality of main posts 11. ) composed of a pair of support frames (1) provided to be spaced apart from each other in the lateral direction; a plurality of rows of support cables (2) fixed to the support bars (12) on both sides; And a plurality of solar panels (3) arranged to be spaced apart from each other in the transverse direction to be coupled between each support cable (2) adjacent to the front and rear; As composed of, each photovoltaic panel (3) shares a support cable (2) with a photovoltaic panel (3) of a neighboring row, so that each support cable (2) is longitudinally connected by the photovoltaic panel (3). It is characterized in that it behaves integrally by being continuously connected.

An object of the present invention is to provide a cable-supported agricultural solar power generation system that has a simple structure, which is easy to construct and manage, and can secure sufficient amount of sunlight, thereby not hindering the cultivation of crops.

The present invention cable supported farm type solar power generation system is configured to include a pair of support frame (1), support cable (2) and solar panel (3).

The support frame 1 includes a plurality of main posts 11 spaced apart from each other in the longitudinal direction and a support bar 12 provided on the plurality of main posts 11 .

The support frame 1 is provided such that a pair is spaced apart from each other in the lateral direction.

In the embodiment of FIG. 3 , for convenience, the X direction is referred to as a transverse direction, and the Y direction is referred to as a longitudinal direction.

The main post 11 is supported on the ground, and a plurality of them are installed to be spaced apart from each other in the longitudinal direction.

As shown in FIG. 4 , a fixture 13 to which an end of a support cable 2 to be described later is fixed may be coupled to the support bar 12 .

The support cable (2) is fixed to the support bar (12) respectively provided on the upper portion of the pair of support frames (1).

That is, the support cable 2 is fixed to the support bars 12 on both sides.

The support cables 2 may be installed in a plurality of rows to be arranged in parallel with each other.

Since the support cable 2 is fixed to the support bar 12 , the main support 11 can be installed at any position regardless of the position of the support cable 2 .

Depending on the length of the support cable (2), the intermediate frame (4) may be installed in the middle.

The intermediate frame (4) can also be composed of a main post supported on the ground and a support bar provided on the main post, and the support cable (2) can be fixed to the support bar of the intermediate frame (4).

The solar panel 3 is coupled between each supporting cable 2 adjacent to the front and rear.

That is, the solar panel 3 is coupled between each supporting cable 2 adjacent in the longitudinal direction.

At this time, a plurality of the solar panels 3 are arranged to be spaced apart from each other in the lateral direction.

As described above, in the present invention, the front and rear ends of the solar panel 3 are respectively fixed to a pair of support cables 2 adjacent to each other in the longitudinal direction.

Each pair of supporting cables 2 supporting the solar panel 3 is not simply installed independently of each other, but each supporting cable 2 is connected to the neighboring supporting cables 2 and the solar panel ( 3) is connected continuously in the longitudinal direction.

That is, each photovoltaic panel 3 shares the supporting cable 2 with the photovoltaic panel 3 of a neighboring row.

Therefore, unlike the conventional cable-supported photovoltaic power generation system in which each support cable 2 is independently fixed and vibrated by wind, each support cable 2 is continuously connected by the photovoltaic panel 3 and integrated be able to move Accordingly, it is possible to prevent vibration or a lifting phenomenon caused by the wind.

In addition, by arranging a plurality of each solar panel 3 to be spaced apart from each other in the lateral direction, even in the case of a small change in solar altitude such as in summer, the amount of sunlight can be secured evenly in all parts of the farmland according to the change in the solar azimuth during the day. .

As shown in FIG. 5 , a fixing clip 31 may be provided at the front and rear ends of the solar panel 3 , respectively, and the solar panel 3 is supported by using the fixing clip 31 . (2) can be fixed.

6 is a plan view showing the present invention cable-supported farm type solar power generation system.

As shown in FIG. 6 , the instantaneous interval l of the solar panel 3 adjacent in the lateral direction may be configured to be more than twice the width a of the solar panel 3 .

In order to prevent the solar panel 3 from interfering with the cultivation of crops, the solar blocking area should be limited to about 1/3 or less of the total farmland area.

To this end, by making the instantaneous interval l of the solar panel 3 adjacent in the lateral direction more than twice the width (a) of the solar panel 3, the sunlight is blocked by the solar panel 3 The farmland area can be made less than 1/3 of the total farmland area.

3, 6, and the like, the photovoltaic panels 3 of adjacent rows can be configured to be arranged to be staggered from each other.

In order to smoothly grow crops, it is important not only to reduce the ratio of the total shaded area of the ground surface by the solar panel 3 but also to secure the amount of sunlight evenly over the entire farmland area.

To this end, the solar panels 3 should be spaced apart from each other in the longitudinal direction as well as in the horizontal direction to secure the required amount of sunlight over the entire farmland according to the movement of the sun during the day.

That is, by alternately arranging the solar panels 3 alternately in the longitudinal and transverse directions and spaced apart from each other in both directions, it can be configured to ensure sufficient and uniform amount of sunlight.

7 is a side view illustrating a coupling relationship between a support cable and a solar panel.

As shown in FIGS. 4 and 7 , the support cables 2 may be arranged in a vertical zigzag cross-section so that the solar panels 3 of adjacent rows are inclined in opposite directions to each other.

The conventional cable support structure is vulnerable to vibration of a cable by wind or lifting of a solar panel.

In addition, when the rotational displacement generated by the wind load acting on the solar panel and the vertical displacement caused by lifting occur in the same direction, the amplitude rapidly increases and there is a risk of divergent vibration (flutter) that causes destruction.

In addition, not only excessive tension is generated in the cable by the force pressing the cable from the top, but also a large lateral force is generated at the end of the cable, thereby greatly increasing the load load of the main post 11, and thus the foundation load can also be greatly increased.

In order to solve the disadvantages of the cable support structure as described above, in the present invention, the photovoltaic panels 3 of adjacent rows may be configured to be inclined in opposite directions.

That is, when the photovoltaic panels 3 of adjacent rows are inclined in opposite directions, displacement occurs in opposite directions while the photovoltaic panels 3 of adjacent rows share the support cables 2 . Accordingly, displacement of the photovoltaic panels 3 in the adjacent row is canceled to prevent vibration or lifting.

On the other hand, it is preferable to form the solar panel 3 at an angle to naturally wash off dust on the upper surface of the solar panel 3 by rain or the like or to prevent snow accumulation on the top surface of the solar panel 3 .

Therefore, when the photovoltaic panels 3 of adjacent rows share the support cable 2 with each other as in the present invention, the solar power generation system as a whole is low on one side and high on the other side in order to arrange the solar panels 3 at an angle. It should be formed to be inclined.

However, in this case, if the land area is large, the difference in elevation between the high side and the low side increases, and in the case of farmland, since the minimum height must be secured for the entry of agricultural machinery, there is a problem that the support frame 1 becomes too large.

However, as in the present invention, when the support cables 2 are arranged in a zigzag up and down cross-section, each photovoltaic panel 3 can be formed to be inclined while maintaining the height of the entire photovoltaic panel 3 at a certain height level. , snow cover, etc. are possible.

To this end, by alternately disposing the installation height of the fixture 13 coupled to the support bar 12 provided on the support frame 1 for coupling the support cable 2 in a vertical zigzag shape, the support cable 2 is It can be formed so as to be staggered by a distance d up and down.

Since the photovoltaic panels 3 of each neighboring row share one support cable 2, when the photovoltaic panel 3 is combined with the support cable 2, the solar panels 3 of the neighboring row are naturally opposite to each other. It is formed to be inclined by θ in the direction (FIG. 7).

1: Support frame
11: Main holding
12: Jijibar
13: fixture
2: Support cable
3: Solar panel
31: fixing clip
4: middle frame

Claims (4)

A pair of support frames (1) composed of a plurality of main posts (11) spaced apart from each other in the longitudinal direction and a support bar (12) provided on the plurality of main posts (11) to be spaced apart from each other in the lateral direction (1) ;
a plurality of rows of support cables (2) fixed to the support bars (12) on both sides; and
A plurality of solar panels (3) arranged to be spaced apart from each other in the lateral direction to be coupled between each of the supporting cables (2) adjacent to the front and rear, and arranged to alternate with each other in the adjacent row; As composed of, each photovoltaic panel (3) shares a support cable (2) with a photovoltaic panel (3) of a neighboring row so that each support cable (2) is longitudinally supported by the photovoltaic panel (3) Cable-supported farming type solar power, which is continuously connected, and the supporting cables (2) are arranged in a zigzag up and down cross section so that the solar panels (3) of adjacent rows are formed to be inclined in opposite directions to each other so that they behave integrally power generation system.
In claim 1,
The instantaneous spacing (l) of the solar panels (3) adjacent to each other in the transverse direction is at least twice the width (a) of the solar panel (3).
delete delete

Images