KR102423249B1 - Movable type photovoltaic power generation device for farming - Google Patents

Abstract

Provided is a movable-type photovoltaic power generation device for farming. The movable-type photovoltaic power generation device for farming includes: a supporter which is vertically extended from the ground and in which a rotatable joint is formed between a lower part and an upper part; and a solar panel which is coupled to the upper part of the supporter and of which orientation direction is changed according to movements of the joint. The solar panel is coupled to the upper part of the supporter to be parallel with an inclined surface inclined from the ground at a first angle. The joint is disposed on a second inclined surface, which splits the supporter into an upper part and a lower part and is inclined from the ground at a second angle, and rotates the upper part of the supporter around a rotation axis vertical to the second inclined surface. A size of the second angle is formed differently from a size of the first angle.

Description

Movable type photovoltaic power generation device for farming

The present invention relates to an agricultural type photovoltaic power generation device that can be placed and used on farmland, and more particularly, to secure sufficient incident light by simultaneously controlling the direction, height, and angle of the solar panel and not to interfere with the growth of crops. It relates to a movable agricultural type photovoltaic power generation device capable of adjusting the shaded area.

Solar energy is an eco-friendly renewable energy that utilizes sunlight. Solar energy is useful in everyday life because it can produce electricity just by installing a solar power generator. In order to secure sufficient power with a solar power generator, a large space with a large incident area of sunlight is required.

As the farmland is widely open, it has good conditions for installing solar power generation devices. Therefore, attempts are being made to simultaneously harvest crops and produce electricity by applying solar power generation devices to existing farmland. For example, research on distributing the power generation area and cultivated area by appropriately adjusting the arrangement interval of solar panels is in progress (eg, Korean Patent 10-2067959, etc.).

However, there is a problem in that the solar panel creates a shaded area around it, which prevents the growth of crops in the adjacent arable land. These problems become more severe as the development area increases. Even if the solar panel is placed high to secure space in the lower part, actual cultivation may be difficult due to the shaded area. In addition, there are cases where more crops need to be increased depending on the situation, so a technology that can minimize the installation space of the solar power generation device and increase the power generation efficiency is required.

Republic of Korea Patent Registration No. 10-2067959 (2020.01.20)

The technical problem of the present invention is to solve this problem, and it is possible to secure sufficient incident light by controlling the direction, height, and angle of the solar panel at the same time and to adjust the shaded area so as not to disturb the growth of crops. To provide a photovoltaic device.

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

Movable agricultural photovoltaic device according to the present invention, the support extending vertically from the ground, a rotatable joint is formed between the lower end and the upper end; and a photovoltaic panel coupled to the upper end of the support and whose orientation direction is changed according to the movement of the joint, wherein the photovoltaic panel is parallel to the first inclined plane inclined at a first angle with the ground at the upper end of the support. coupled, the joint divides the support into an upper part and a lower part and is disposed on a second inclined plane inclined at a second angle with the ground to rotate the upper part of the support about a rotation axis perpendicular to the second inclined plane, and the The size of the second angle is different from the size of the first angle.

The first angle and the second angle are both acute angles, and the size of the second angle may be greater than the size of the first angle.

The movement range of the solar panel may be increased in proportion to the size of the second angle.

The photovoltaic device further includes a sliding coupling part disposed between the first inclined plane and the solar panel to change the shaded area formed on the ground by sliding the solar panel parallel to the first inclined plane. can do.

The sliding coupling unit includes a holder for slidably fixing the solar panel to the support, a rack gear disposed in a straight line on the rear surface of the solar panel, and a driving drive that is meshed with the rack gear to drive the solar panel It may include a linear drive including a gear.

The movable farming type photovoltaic device controls the linear driving unit to change the position of the center of gravity of the photovoltaic panel with respect to the holder to change the natural frequency of the coupling structure in which the holder and the photovoltaic panel are coupled. It may further include a first control unit for controlling.

The joint is rotated by forming a rotational surface parallel to the second inclined surface on the second inclined surface, and a ring gear connected to the upper portion of the support, surrounds and supports the outer circumferential surface of the ring gear on the second inclined surface, and the lower portion of the support It may include a rotation driving unit including a connected circular bearing, and a pinion gear that is meshed with an inner circumferential surface of the ring gear to drive the ring gear.

The support may have a cylindrical shape, and the second inclined surface may have an elliptical shape, and an outer diameter of the circular bearing may be smaller than a minor axis of the ellipse.

The movable farm type photovoltaic device may further include a second control unit for controlling the rotational driving unit to control the speed at which the upper portion of the support pivots to control the upper end of the support to track along the sun.

According to the present invention, it is possible to sufficiently secure the amount of light incident on the solar panel by adjusting the direction, height, and angle of the solar panel at the same time. Therefore, the power generation efficiency of the photovoltaic device is increased, so that increased power production is possible even with a small number of power generation devices. Due to this, it is possible to increase the area of arable land when forming an agricultural solar power facility. In addition, the shaded area formed by the photovoltaic panel can be moved by changing the location at any time, so that the growth of the surrounding crops can not be substantially hindered. Therefore, it is possible to minimize the unused space in the farmland and to increase the crop yield and electricity production at the same time.

1 is a perspective view of a movable farm type photovoltaic power generation device according to an embodiment of the present invention.
FIG. 2 is a side view showing the joint part of the solar power generation device of FIG. 1 by incision.
3 is a partial exploded view showing the arrangement of the solar panel and the sliding coupling portion of the photovoltaic device of FIG. 1 .
FIG. 4 is an operational view illustrating a change in position of a solar panel due to rotation of the photovoltaic device of FIG. 1 .
5 is a state diagram illustrating a rotation operation of the photovoltaic device of FIG. 1 .
6 is a use state diagram illustrating an operation of changing a shaded area of the photovoltaic device of FIG. 1 .
7 is a state diagram illustrating an operation of changing the natural frequency of the photovoltaic device of FIG. 1 .

Advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete and common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout.

Hereinafter, with reference to FIGS. 1 to 7, a movable farm type solar power generation device according to the present invention will be described in detail.

1 is a perspective view of a movable farm type photovoltaic device according to an embodiment of the present invention, FIG. 2 is a side view showing the joint part of the photovoltaic device of FIG. 1 by cutting, and FIG. 3 is the solar power of FIG. It is a partial exploded view showing the arrangement of the solar panel and the sliding coupling part of the power generation device.

1 to 3 , the movable farming type photovoltaic device 1 according to the present invention is provided with a rotatable joint 110 on the support 100 . The joint 110 is an axial joint having a rotation axis and is disposed on an inclined plane. The joint 110 is disposed on a second inclined plane 102 that divides the support 100 into an upper part 100a and a lower part 100b, and the axis of rotation of the joint 110 (see F in FIG. 2 ) is a second inclined plane 102 . ) is formed perpendicular to

Due to this, in accordance with the movement of the joint 110, the upper portion 100a of the support rotates on a rotational surface parallel to the second inclined plane 102 (see FIG. 4). The upper portion 100a of the support is refracted with respect to the lower portion 100b of the support by rotation and three-dimensionally changes the position of the solar panel 200 coupled to the upper portion of the support 100 .

The solar panel 200 is coupled to the first inclined plane 102 of the upper end of the support 100 and is disposed at an angle different from the second inclined plane 102 . Therefore, the orientation direction of the photovoltaic panel 200 (the photovoltaic cell 201 is arrayed) by the difference in angle between the second inclined plane 102 which is the rotation surface and the first inclined plane 101 that is the arrangement direction of the photovoltaic panel 200 . direction the front face is facing], the height of the solar panel 200, and the angle difference with respect to the ground of the solar panel 200 before and after rotation can be simultaneously created.

Since the present invention can simultaneously change the height, orientation direction, angle with respect to the ground, etc. of the solar panel 200 only by rotation of the joint 110 in this way, tracking the sun in which the altitude and direction are changed at the same time, or the circumference of the sun It is very advantageous to vertically incident sunlight whose direction is changed according to the solar panel 200 . Therefore, the solar power generation efficiency can also be dramatically increased.

Also, as will be described later, by sliding the solar panel 200, the position of the shaded area on the ground can be changed at any time, and resonance caused by the wind can be prevented by adjusting the position of the solar panel 200, so the surrounding cultivated land The present invention can be applied very effectively to open farmland without interfering with crop growth.

The movable agricultural type photovoltaic device 1 of the present invention (hereinafter referred to as a photovoltaic device has the same meaning) is configured as follows. The movable farm type photovoltaic device (1) is coupled to the upper end of the support 100, extending vertically from the ground and having a rotatable joint 110 between the lower end and the upper end, and the upper end of the support 100, the joint 110 ) including a photovoltaic panel 200 whose orientation is changed according to the movement of the photovoltaic panel 200, which is inclined at a first angle with the ground at the upper end of the support 100 (see α1 in FIG. 2). 1 is coupled parallel to the inclined plane (refer to 101 in FIGS. 1 and 2), the joint 110 divides the support 100 into upper and lower portions and is inclined at a second angle with the ground (see α2 in FIG. 2). It is disposed on the second inclined plane (see 102 in FIGS. 1 and 2) to rotate the upper part 100a of the support about the axis of rotation F perpendicular to the second inclined plane 102, and the size of the second angle α2 is formed differently from the size of the first angle α1.

According to an embodiment of the present invention, the photovoltaic device 1 is disposed between the first bevel 101 and the photovoltaic panel 200 and is parallel to the first oblique face 101 of the photovoltaic panel 200 . It may further include a sliding coupling part 210 for changing the shaded area formed on the ground by sliding it to move, and the first angle α1 and the second angle α2 are both acute angles and the second angle α2 The size may be formed to be larger than the size of the first angle α1. Hereinafter, based on such an embodiment of the present invention, the configuration and effect of the present invention will be described in more detail.

The support 100 extends in a direction perpendicular to the ground. The support 100 may be formed as a bar extending long in a straight line and may have a cylindrical shape. The inside of the support 100 may be empty, and the material may be metal. The support 100 may be formed of a metal bar. The support 100 may include a space in which mechanical elements can be arranged, and within such limits, the diameter and length may be appropriately adjusted. The support 100 may be formed in the form of a polygonal bar other than a cylindrical shape.

As shown in FIGS. 1 and 2 , the support 100 includes an inclined structure of a first inclined surface 101 and a second inclined surface 102 . The first inclined surface 101 is formed at the upper end of the support 100 , and the second inclined surface 102 is formed between the upper end and the lower end of the support 100 . In particular, the second inclined plane 102 is a structure that divides the support 100 into an upper part and a lower part, and the joint 110 is disposed on the second inclined plane 102 . That is, the support 100 has a structure in which a rotatable joint 110 is formed between the lower end and the upper end.

The second inclined surface 102 may be formed by, for example, cutting the support 100 extending in a straight line in the middle. In such a way, the support 100 may be divided into an upper portion 100a and a lower portion 100b. The second bevel 102 may be symmetrically formed on each of the cut surfaces of the support upper portion 100a and the supporter lower portion 100b. After cutting, the cut surfaces of the upper portion of the support 100a and the lower portion of the support 100b (ie, a second inclined surface formed symmetrically on each) may be at least partially shielded by welding a plate or the like. The joint 110 structure can be appropriately formed on each shielded cut surface. The specific structure and operation of the joint 110 will be described later in more detail.

The solar panel 200 is coupled to the upper end of the support 100 . The upper end of the support 100 corresponds to the top of the upper portion 100a of the support. Symmetrically, the lower end of the support 100 corresponds to the lowermost end of the lower portion 100b of the support. The lower end of the support 100 is fixed to the ground, and the upper end of the support 100 is disposed higher than the ground by the length of the support 100 . The photovoltaic panel 200 is coupled to the upper end of the support 100 and the orientation direction is changed according to the movement of the joint 110 of the support 100 .

The arrangement structure of the solar panel 200 will be described in more detail as follows.

Referring to FIG. 2 , the solar panel 200 is coupled to the upper end of the support 100 in parallel to the first inclined plane 101 inclined at a first angle α1 with the ground. The first angle α1 may be an angle formed by the first inclined plane 101 with the ground in a state in which the upper portion 100a of the support is vertically arranged with the ground before the joint 110 rotates. In FIG. 2, the ground is represented by a horizontal line, and the angle between the solar panel 200 and the ground is represented by a first angle α1. Since the first inclined plane 101 and the solar panel 200 are parallel to each other, the angle between the first inclined plane 101 and the ground is also the same as the first angle α1 shown.

The first inclined surface 101 may be formed by processing the upper end of the support 100 into an inclined surface shape. When the upper end is cut, similarly to the second bevel 102 , it is possible to shield the cut surface by welding a plate or the like. By arranging an appropriate coupling structure on the first bevel 101 , the solar panel 200 may be coupled in parallel with the first bevel 101 . After bonding, the solar panel 200 is continuously maintained in parallel with the first inclined plane 101 .

A sliding coupling part 210 may be disposed between the solar panel 200 and the first inclined plane 101 to move the solar panel 200 parallel to the first inclined plane 101 . Referring specifically to FIG. 3 , the sliding coupling unit 210 includes a holder 211 for slidably fixing the solar panel 200 to the support 100 , and a straight line on the back surface of the solar panel 200 . It may include a rack gear 212 disposed upward, and a linear driving unit 214 including a driving gear 214a that is meshed with the rack gear 212 to drive the solar panel 200 .

The holder 211 is, for example, a support plate 211a coupled in close contact with the first inclined surface 101, a support leg 211b extending from the support plate 211a, and a plurality of formed at the distal end of the support leg 211b. may include a slider 211c of The holder 211 may be fixed to the upper end of the support 100 to hold the solar panel 200 , and may have a structure for guiding the sliding movement of the solar panel 200 using the slider 211c. The slider 211c may be coupled to the guide rail 213 disposed parallel to the rack gear 212 on the rear surface of the solar panel 200 . A bearing may be inserted into the contact surface of the slider 211c and the guide rail 213 to facilitate sliding.

A rack gear 212 and a guide rail 213 are disposed parallel to each other on the rear surface of the solar panel 200 . A plurality of photovoltaic cells 201 are integrated on the front surface of the photovoltaic panel 200 . A pair of guide rails 213 may be symmetrically disposed with the rack gear 212 interposed therebetween to maintain the balance of the solar panel 200 . The rack gear 212 is coupled to the linear driving unit 214 fixed to the holder 211 , and may move by meshing with the driving gear 214a of the linear driving unit 214 . The linear driving unit 214 may include a driving gear 214a and a motor 214b for transmitting power to the driving gear 214a.

The photovoltaic panel 200 is coupled to the support 100 in this way to maintain a state parallel to the first inclined plane 101 , but can slide along the first inclined plane 101 . That is, when the driving gear 214a rotates forward and reverse as shown in FIG. 3 , displacement may be generated in both longitudinal directions of the rack gear 212 . When the solar panel 200 is moved and the position is changed, the position of the shaded area (shadow of the solar panel) formed on the ground also changes, so that the shaded area can be removed or the shaded area can be adjusted from the ground where crops are planted. Through this, it is possible to effectively solve the problem of blocking the sunlight by the conventional photovoltaic facility and hindering the growth of crops.

The structure of the joint 110 will be described in more detail with reference to FIGS. 1 and 2 .

1 and 2 , the joint 110 is disposed on the above-described second beveled surface 102 . The joint 110 is made of a shaft joint and rotates the upper part 100a of the support about the axis of rotation perpendicular to the second inclined plane 102 (see F of FIG. 2 ). In the enlarged view of FIG. 2 , a cross-sectional view A-A' is shown by cutting the joint 110 along the second inclined plane 102 . Hereinafter, the structure of the joint 110 will be described in more detail with reference to the side view and the enlarged cross-sectional view of FIG. 2 .

As shown in FIG. 2, the joint 110 rotates by forming a rotational surface parallel to the second inclined surface 102 on the second inclined surface 102, and a ring gear 111 connected to the upper portion 100a of the support and, A circular bearing 112 that surrounds and supports the outer peripheral surface of the ring gear 111 on the second inclined surface 102 and is connected to the lower part 100b of the support, and is meshed with the inner peripheral surface of the ring gear 111 to drive the ring gear 111 and a rotation driving unit 113 including a pinion gear 113a. The axis of rotation F of the joint 110 may be placed on an imaginary line passing through the center of rotation of the ring gear 111 .

The ring gear 111 and the circular bearing 112 may be disposed on a surface in which the lower end of the upper portion 100a of the support and the upper end of the lower portion 100b of the supporter contact each other. Since the upper portion 100a and the lower portion 100b of the support are divided by the second inclined surface 102, the surface where the upper portion of the upper portion 100a of the support and the upper portion of the lower portion 100b of the support is in contact is the same as the second inclined surface 102. . The ring gear 111 may protrude from the lower end of the upper portion 100a of the support and pass through the second bevel 102 to be coupled to the upper end of the lower portion 100b of the support. The circular bearing 112 may be disposed in a form surrounding the ring gear 111 on the upper end of the lower portion 100b of the support.

The rotation driving unit 113 includes a pinion gear 113a that is meshed with the inner circumferential surface (a surface on which the gear teeth are formed) of the ring gear 111 and rotates, and a motor 113b that provides a driving force to the pinion gear 113a. The motor 113b may be fixed to the inside of the lower portion 100b of the support using various fixing structures. Accordingly, the ring gear 111 may be rotated by the pinion gear 113a, and the upper portion 100a of the support connected to the ring gear 111 may also be rotated.

When the support 100 has a cylindrical shape, the second inclined surface 102 is formed in an ellipse as shown, and the outer diameter of the circular bearing 112 may be formed smaller than the minor axis of the ellipse (see section A-A' in FIG. 2 ). ). That is, the joint 110 formed on the second inclined surface 102 can be placed inside the rim of the second inclined surface 102 to form a smooth rotation structure. Since the second bevel 102 is formed in a non-circular shape, the joint 110 may be disposed on the second bevel 102 in this way.

By the joint 110 structure as described above, the upper portion 100a of the support is rotated about the axis of rotation F perpendicular to the second inclined plane 102 . As shown, in the present invention, the size of the second angle α2 at which the second inclined surface 102 is inclined with respect to the ground is equal to the size of the first angle α1 at which the first inclined surface 101 is inclined with respect to the ground. formed differently. Therefore, it is possible to three-dimensionally change the arrangement of the solar panel 200 parallel to the first inclined surface 101 during rotation due to the difference in angle between the first inclined surface 101 and the second inclined surface 102 . The rotation operation will be described in more detail with reference to FIG. 4 .

FIG. 4 is an operational view showing a change in the position of the solar panel due to rotation of the photovoltaic device of FIG. 1 .

For example, as shown in Fig. 4 (a), by driving the rotational driving unit 113 of the joint 110 to rotate the entire support upper portion (100a) around the axis of rotation (F) perpendicular to the second inclined plane (102) can do it Since the solar panel 200 is also coupled to the upper portion 100a of the support, the solar panel 200 is also rotated. At this time, the arrangement state of the first inclined surface 101 having an angle different from the second inclined surface 102 is changed, and the arrangement state of the solar panel 200 is also changed correspondingly. The direction of rotation is exemplary and may also be rotated in the opposite direction.

By the rotation, for example, as shown in Figure 4 (b), the upper portion (100a) of the support may be rotated and bent sideways. Accordingly, the upper end of the support 100 is lowered (obliquely) and the height of the solar panel 200 coupled to the upper end of the support 100 may also be lowered. In addition, since the alignment state of the first inclined plane 101 is changed while rotating around the second inclined plane 102, the angle X formed by the solar panel 200 with respect to the ground E after rotation may also be arbitrarily changed. . The changed angle X after rotation is different from the first angle α1 between the ground E and the first bevel 101 before rotation, and preferably may be increased than the first angle α1.

The angle the solar panel 200 makes with respect to the ground (E), the angle the first inclined plane 101 makes with the ground (E), and the angle that the second inclined plane 102 makes with the ground (E) are all the ground (E) ) can be measured on a single plane that intersects perpendicularly to The direction of the front surface of the solar panel 200 may be three-dimensionally changed after rotation, but an angle formed with the ground E may be measured based on an intersection line intersecting with the single plane. The angle X after rotation shown in (b) of FIG. 4 illustrates the angle after rotation determined in such a way.

This operation is possible because the first inclined surface 101 and the second inclined surface 102, which is a rotating surface, are formed to be inconsistent with each other. When the joint 110 rotates due to the difference in angle between the first inclined plane 101 and the second inclined plane 102 , the height and the angle of the solar panel 200 are simultaneously changed. Therefore, even if the incident light L is irradiated in different directions for each time from the sun whose altitude and direction change together, power can be produced by changing the height and angle of the solar panel 200 accordingly.

Preferably, the first angle (α1 in FIG. 2) formed by the first inclined plane 101 with the ground [may be measured in a state where the upper part of the support is vertical before the rotation of the joint as described above], and the second inclined plane All second angles (α2 in FIG. 2 ) formed by 102 with the ground are acute angles, and the size of the second angle α2 may be greater than the size of the first angle α1 . When the size of the second angle α2 is increased, the rotation range or radius of rotation of the upper part of the support 100a is increased, so that the movement range of the solar panel 200 is increased in proportion to the size of the second angle α2. have.

Therefore, as in this embodiment, the size of the second angle α2 is made larger than the first angle α1 to increase the movement range of the solar panel 200 and the angle between the solar panel 200 and the ground before and after rotation. can also be changed. Through this, it is possible to produce power very effectively while continuously tracking the sun whose altitude and direction change only by rotation of the joint 110 .

5 is a state diagram illustrating a rotation operation of the photovoltaic device of FIG. 1 .

As shown in FIG. 5, by rotating only the joint 110 of the photovoltaic device 1, the height, angle, and orientation of the photovoltaic panel 200 can be simultaneously changed to the direction in which the sun A is located. have. This operation may be made automatically and, for example, may be performed through a second control unit (see 400 of FIG. 2 ) that controls the rotational driving unit (see 113 of FIG. 2 ) of the joint 110 . The second control unit 400 may be disposed inside the support 100 and the like, and may be formed as a computer device capable of loading a control program such as a programmable logic controller.

That is, the photovoltaic device 1 controls the rotational driving unit 113 to adjust the speed at which the upper portion 100a of the supporter pivots, thereby controlling the upper end of the supporter 100 to track along the sun. (400). The rotational speed of the joint 110 can be matched to the circumferential speed of the sun (A), and through this, the elevation and direction are changed from east to west, and the moving sun (A) can be effectively tracked.

The solar panel 200 automatically changes the angle with respect to the ground (E) when the height is changed, and the orientation direction is also changed by rotation, so as shown in the figure, at sunrise and sunset times, at a larger angle with respect to the ground (E). It is built to look at the east and west sky [see Fig. 5 (a), (c)], and at the mid-night time, it can be laid down at a smaller angle with respect to the ground (E) and controlled to face the ceiling [Fig. 5 (b) )Reference]. This precise tracking is possible by adjusting only the rotational speed of the joint 110 formed on the support 100 .

6 is a use state diagram illustrating an operation of changing a shaded area of the photovoltaic device of FIG. 1 .

In addition, the present invention may change the sliding direction of the solar panel 200 as shown in FIG. 6 to continuously change the shaded area (B). For example, by controlling the linear driving unit (refer to 214 of FIG. 2) of the sliding coupling unit 210, the solar panel 200 can be adjusted to repeatedly change positions in the opposite direction at regular intervals. Through this, it is possible to prevent the shaded area (B) from being fixed at one point, and the sunlight can smoothly reach the crop (C) on the ground (E) to help the growth of the crop (C).

The present invention is a movable farming type photovoltaic power generation device (1) that is applied and used in farmland. Due to this function, it can be installed without any problem even in a location adjacent to the farmland, such as the boundary between the power generation area and the cultivation area. In addition, as described above, in the present invention, since the solar power generation efficiency is greatly increased through an effective tracking operation, equivalent power can be produced in a smaller power generation area (installation area of the photovoltaic device) compared to the prior art. Therefore, the cultivated area for cultivating crop (C) can be further increased.

The above-described operation of changing the shaded area B may be performed in parallel with the tracking operation, and may be continued even when the tracking is stopped depending on circumstances.

7 is a state diagram illustrating an operation of changing the natural frequency of the photovoltaic device of FIG. 1 .

Meanwhile, in the present invention, as shown in FIG. 7 , resonance by the wind D may be prevented by adjusting the solar panel 200 . This is also possible through the sliding operation of the solar panel 200 .

For example, the photovoltaic device 1 controls the linear driving unit (refer to 214 of FIG. 2 ) of the sliding coupling unit 210 to change the position of the center of gravity of the solar panel 200 with respect to the holder 211 . The holder 211 and the photovoltaic panel 200 may include a first control unit (refer to 300 in FIG. 2) for controlling to change the natural frequency of the coupled structure is coupled. The first control unit 300 may also be disposed inside the support 100 and the like, and may be formed as a computer device capable of loading a control program such as a programmable logic controller. The above-described shadow area change operation may be performed with the first control unit 300 , and if necessary, the above-described second control unit and the first control unit 300 may be integrated to form a single device.

Since the solar panel 200 has a wide plate-like structure, vibration may occur at any time. Most of the vibration is generated by the wind D, and when the strength, direction, etc. of the wind D is changed, the frequency of the solar panel 200 may also be changed. At this time, if the mass distribution of the holder 211 and the solar panel 200 is changed by sliding the solar panel 200, the natural frequency of the coupling structure in which the holder 211 and the solar panel 200 are coupled is changed. can For example, when the solar panel 200 is symmetrically disposed at the center of the holder 211 as shown in (a) of FIG. 7, and as shown in FIG. 7 (b), the solar panel 200 is the holder When it is asymmetrically disposed at the center of the 211 , the natural frequency may vary according to a change in the position of the solar panel 200 .

Using this, it is possible to effectively suppress the resonance caused by the wind (D). Adjustment of the natural frequency may be performed by, for example, placing a vibration sensor on the solar panel 200 and controlling the sliding displacement of the solar panel 200 by finding a point at which vibration is reduced. Since various variables may be generated by the strength, direction, etc. of the wind D, it may be desirable to adaptively control it. In this way, by changing the position of the photovoltaic panel 200, the vibration of the device can be reduced and the photovoltaic device 1 can be used more stably.

Therefore, there is no problem in applying the present invention to open farmland where the wind blows strongly. When the above-described changing operation of the shaded area and the convenient tracking operation using the rotation of the joint 110 are combined, the number of power generation devices is relatively small. power can be produced. Therefore, it is possible to more efficiently harvest crops and generate electricity at the same time by increasing the arable area within the farmland.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: Movable Agricultural Solar Power Generation Device
100: support 100a: upper support
100b: lower support support 101: first inclined plane
102: second bevel 110: joint
111: ring gear 112: circular bearing
113: rotation driving unit 113a: pinion gear
113b, 214b: motor 200: solar panel
201: solar cell 210: sliding coupling part
211: holder 211a: support plate
211b: support leg 211c: slider
212: rack gear 213: guide rail
214: straight drive unit 214a: drive gear
300: first control unit 400: second control unit
A: sun B: shaded area
C: crop D: wind
E: ground F: axis of rotation
L: incident light

Claims (9)

a support that extends vertically from the ground and has a rotatable joint between the lower end and the upper end; and
It is coupled to the upper end of the support and includes a solar panel whose orientation direction is changed according to the movement of the joint,
The solar panel is coupled to the upper end of the support in parallel to the first inclined plane inclined at a first angle with the ground,
The joint divides the support into upper and lower portions and is disposed on a second inclined plane inclined at a second angle to the ground to rotate the upper part of the support about a rotation axis perpendicular to the second inclined plane,
The size of the second angle is formed to be different from the size of the first angle,
It is disposed between the first inclined plane and the solar panel and further comprises a sliding coupling part for changing the shaded area formed on the ground by sliding the solar panel parallel to the first inclined plane,
The sliding coupling unit includes a holder for slidably fixing the solar panel to the support, a rack gear disposed in a straight line on the rear surface of the solar panel, and a driving drive that is meshed with the rack gear to drive the solar panel Including a linear drive with a gear,
By controlling the linear driving unit, by changing the position of the center of gravity of the solar panel with respect to the holder, further comprising a first control unit for controlling to change the natural frequency of the coupling structure to which the holder and the solar panel are coupled Movable Agricultural Solar Power Plant. The method of claim 1,
The first angle and the second angle are both acute angles, and the size of the second angle is larger than the size of the first angle. The method of claim 1,
A movable farming type photovoltaic power generation device in which the movement range of the photovoltaic panel is increased in proportion to the size of the second angle. delete delete delete The method of claim 1,
The joint is rotated by forming a rotation surface parallel to the second inclined surface on the second inclined surface, and a ring gear connected to the upper part of the support, surrounds and supports the outer circumferential surface of the ring gear on the second inclined surface, and the lower part of the support A movable farming type photovoltaic power generation device comprising a rotating drive unit including a connected circular bearing, and a pinion gear meshed with an inner circumferential surface of the ring gear to drive the ring gear. 8. The method of claim 7,
The support is cylindrical, and the second inclined surface is formed in an ellipse, and the outer diameter of the circular bearing is smaller than the minor axis of the ellipse. 8. The method of claim 7,
Movable farming type photovoltaic device further comprising a second control unit for controlling the rotational driving unit, controlling the speed at which the upper portion of the support pivots to control the upper end of the support to track along the sun.

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