JP2015097469A - Wind power reducer for solar panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind power reducer capable of reducing wind power working on solar panels and reducing the sum of wind pressure.SOLUTION: A wind power reducer 10 for one or a plurality of solar panels 12 comprises a plate 26. The plate 26 is vertically arranged toward a downward inclined surface 18 of the solar panels 12 with an interval in a horizontal direction from the solar panels 12. The plate 26 arranged in this manner has a pair of flat surfaces 32, 34 facing each other in a vertical direction, faces an upper surface 22 of the solar panels between both flat surfaces, or the upper flat surface 32 is at a height position having a distance at most 1/4 a distance between a height of an upper boundary 36 of the solar panels and a lower boundary 40, and the lower flat surface 34 of the solar panels is at a height position of the lower boundary or a height position lower than the position.

Description

  The present invention relates to a wind power reducing device for a solar panel used for photovoltaic power generation.

  The solar panel is installed outdoors, and is supported in an inclined state in the space above the installation surface via an appropriate support device so that sunlight can enter the solar panel more effectively.

  By the way, the solar panel support device not only supports the solar panel above the installation surface, but also acts on the solar panel by the action of wind, that is, acts on both the upward and downward inclined surfaces of the solar panel. It is required to have sufficient strength to hold the wind pressure so that it can counter the sum of the wind pressures (the resultant force). However, the construction of such a high-strength support device requires a great amount of money, which hinders the spread of solar panels that are desired to be installed at a relatively low cost.

  Conventionally, in order to solve such problems, it has been proposed to reduce the influence of wind acting on the solar panel in order to reduce the strength required for the solar panel support device (Patent Documents below). 1-4).

JP 2011-82273 A JP 2011-911166 A JP 2013-73958 A JP 2013-93376 A

  According to these conventional proposals, the sum (the resultant force) of the wind pressure acting on the solar panel is reduced by changing the direction of the wind hitting the solar panel. However, by changing the wind direction, the size of the wind force acting on the solar panel does not change, and the effect of reducing the resultant force is relatively small. Therefore, the present invention provides a wind power reduction device that can reduce the resultant force as well as the wind power acting on the solar panel.

  The solar panel to which the wind power reducing device according to the present invention is applied is installed in an inclined state in the space above the installation surface, the upward inclined surface and the downward inclined surface facing each other, and the upper side surface connected to both inclined surfaces. And a lower surface. The wind reduction device includes a plate. The plate is disposed vertically from the solar panel in the horizontal direction toward the downward inclined surface of the solar panel, and the plate disposed in this manner has a pair of upper and lower flat surfaces opposed in the vertical direction. Between the flat surfaces of the solar panel.

  According to the present invention, the plate is vertically installed toward the downward inclined surface of the solar panel at a position spaced horizontally from the solar panel. For this reason, the said plate obstruct | occludes a part of wind blowing toward the said solar panel, and makes the effect | action which reduces the wind force with respect to the said solar panel.

  According to the present invention, the plate is opposed to the upper side surface of the solar panel between the upper and lower flat surfaces. From this, the partial blocking action of the wind by the plate extends to the upper side surface of the solar panel, and the direct hit of the wind against the upper side surface is avoided. As a result, the negative pressure acts on the upwardly inclined surface of the solar panel due to separation of the air flow (wind flow) generated on the upper surface when there is a direct blow of the wind on the upper surface of the solar panel; Occurrence of a levitation effect on the solar panel based on the action of positive pressure on the downward inclined surface can be prevented. Furthermore, the wind that hits the plate and flows over both the upper and lower flat surfaces thereof creates a negative pressure acting space region on the downstream side of the plate. The negative pressure working space region surrounds all or part of the solar panel, and reduces the resultant force, which is a force generated in the solar panel by the action of wind. The effect of reducing the resultant force is higher when the entire solar panel is surrounded by the negative pressure working space region than when a part of the solar panel is surrounded by the negative pressure working space region. From these, the effect of reducing the resultant force with respect to the solar panel can be obtained, and the strength required for the solar panel support device can be reduced.

  The degree of the effect of reducing the resultant force acting on the solar panel depends on the installation position and the size of the plate, and the horizontal interval between the solar panel and the plate is in the range of 350 to 1000 mm. However, the space can be set to 350 to 3000 mm in consideration of installation of the solar panel, the wind power reducing device, etc. and securing a space for maintenance.

  In addition, the plate has, for example, a flat surface above the plate at the same height as an upper boundary that is a boundary between the upward inclined surface of the solar panel and the upper side surface thereof, and is located below the plate. The vertical length is determined and arranged so that the flat surface is at the height position of the lower boundary, which is the boundary between the downward inclined surface of the solar panel and the lower surface thereof, or at a lower height position. it can.

  In this example, the distance between the upper and lower flat surfaces of the plate is set to 3/4 of the vertical distance between the upper and lower boundaries of the solar panel, or the horizontal direction When the plate length in the other horizontal direction orthogonal to each of the vertical directions is set to a size of 90% or more of the length of the solar panel in the other horizontal direction, the relatively large resultant force Can be reduced.

  The plate may be supported through a support device provided for supporting the solar panel or a dedicated support device. When the plate is supported, the solar panel support device and the dedicated support device each form part of the wind power reduction device.

  The present invention also provides other wind reduction devices. In this wind power reducing device, the plate is arranged vertically toward the downward inclined surface of the solar panel at a horizontal interval from the solar panel, and the flat surface above the plate is Between the upper boundary and the lower boundary that is the boundary between the downward inclined surface of the solar panel and its lower side from the height position of the upper boundary that is the boundary between the upward inclined surface of the solar panel and its upper surface At a height of at least a quarter of the distance in the vertical direction, and the flat surface below the plate is at the height of the lower boundary of the solar panel or lower In position.

  This wind power reducing device suppresses the action of the air flow that the wind power reducing device described above mainly hits the upper surface of the solar panel, thereby reducing the resultant force of the solar panel. The action of the air flow hitting the downwardly inclined surface is suppressed, thereby reducing the resultant force of the solar panel.

  In addition, the present invention is still another wind power reducing device applied to a plurality of solar panels, that is, a plurality of solar panels arranged in a tilted state in an upper space of an installation surface, and extending in a lateral direction parallel to each other. Provided is a wind reduction device applied to a solar panel array.

  The wind power reducing device includes a first plate, and the first plate is spaced downward from the plurality of solar panel rows in a vertical direction perpendicular to the horizontal direction on a horizontal plane. And a pair of upper and lower flat surfaces opposed to each other in the vertical direction. The upper flat surface of the first plate includes an upward inclined surface of the solar panel and an upper surface thereof. At most 1 / of the distance in the vertical direction between the height of the upper boundary that is the boundary with the side surface and the lower boundary that is the boundary between the upper boundary and the downward inclined surface of the solar panel and its lower surface 4 at a height position with a distance of 4 and the flat surface below the plate is at the lower position of the lower boundary of the solar panel or at a lower position.

  The wind power reducing device applied to the plurality of solar panel rows further includes a second plate disposed in parallel with the first plate between two solar panel rows adjacent to each other in the longitudinal direction. It can be. According to this, the second plate can be placed at a position where the effect of reducing the resultant force of the first plate with respect to the solar panel row is reduced, and the second plate can further reduce the leeward solar panel row. On the other hand, the resultant force reducing action similar to that of the first plate can be exerted.

  The wind power reducing device applied to the plurality of solar panel rows is further a pair of third plates connected to both sides of the first plate and extending in the vertical direction, together with the first plate A third plate surrounding the plurality of solar panel rows from three sides may be included. According to this, the action of applying the resultant force to the solar panel row of the wind that enters the solar panel row from the side through the both sides of the first plate or further the second plate from the side is further reduced. can do.

It is a schematic side view of a solar panel and a wind power reducing device. It is a schematic plan view of a solar panel and a wind power reducing device. It is a schematic top view which shows the plate | plate of a some solar panel row | line | column and a wind-power reducing apparatus. It is a schematic side view which shows the plate | plate of a some solar panel row | line | column and a wind-power reduction apparatus. It is a schematic top view explaining the model of the numerical analysis about the wind-power reducing apparatus applied to a some solar panel row | line | column. It is a schematic side view explaining the conditions of numerical analysis about the wind power reducing device shown in FIG. It is a schematic top view of the said solar panel which shows 21 points P1-P21 which are the calculation positions of the time average of the wind force set on the said solar panel in order to obtain | require the average wind force which acts on a solar panel.

  Referring to FIGS. 1 and 2, a wind power reduction device is generally indicated by the numeral 10. Further, a solar panel for performing solar power generation, to which the wind power reducing device 10 is applied, is indicated by reference numeral 12 as a whole.

  The solar panel 12 is supported in an inclined state via a support device 16 in the space above the installation surface 14 set on a vacant land, the rooftop of the building, etc., and the upwardly inclined rectangular shape constituting the sunlight receiving surface It has a surface 18 and a rectangular downward inclined surface 20 that faces the upward inclined surface and faces the installation surface 14. The solar panel 12 also has an upper side surface (upper side surface) 22 and a lower side surface (lower side surface) 24 that are orthogonal to both the inclined surfaces 18 and 20.

  The wind power reducing device 10 includes a plate 26 that serves to reduce the influence of the wind W flowing in the direction of the arrow 25 toward the solar panel 12 on the solar panel.

  The plate 26 constituting the wind power reduction device 10 is supported in the space above the installation surface 14 of the solar panel 12 with the support device 16 of the solar panel 12 as a common support device. Note that the plate 26 can be supported by a dedicated support device (not shown) instead of the illustrated example in which the support device 16 of the solar panel 12 is shared. The shared support device 16 and the dedicated support device each form a part of the wind reduction device 10.

  The plate 26 has rectangular front and back surfaces 28 and 30 that are opposed to each other, and a pair of upper and lower flat surfaces 32 and 34 that are part of side surfaces that are orthogonal to the front and back surfaces.

  The plate 26 is vertically arranged with the surface 28 facing the downward inclined surface 20 of the solar panel 12 at a distance S1 from the solar panel 12 in the horizontal direction. The front and back surfaces 28 and 30 of the plate 26 arranged in this way are in two vertical planes parallel to each other, and both the flat surfaces 32 and 34 are at an upper height position and a lower height position, respectively. is there.

  According to this, the wind W flowing toward the downward inclined surface 20 with respect to the solar panel 12 strikes the back surface 30 of the plate 26. Next, the upper, lower, left and right edges of the plate 26 are squeezed and moved to the surface 28 side of the plate 26 so as to hit the solar panel 12. Here, the plate 26 functions to block a part of the wind W toward the solar panel 12 and weaken the wind force with respect to the solar panel 12.

  Further, the illustrated plate 26 has a vertical length S2 of a boundary (upper boundary) 36 between the upper side surface 22 and the upward slope 18 of the solar panel 12, and a boundary between the downward inclined surface 20 and the lower side surface 24. (Lower boundary) 40 is set to 3/4 of the vertical direction distance S3. The thickness dimension of the plate 26 (the distance between the front and back surfaces 28, 30) can be arbitrarily determined.

  Furthermore, the height position of the flat surface 32 above the plate 26 is at the height position H of the boundary 36 between the upward inclined surface 18 and the upper side surface 22 of the solar panel 12 and the flat surface 34 below the plate 26. Is positioned below the boundary 38 between the upper side surface 22 of the solar panel 12 and the downward inclined surface 20. The height position of the flat surface 32 above the plate 26 may be above the height position H of the boundary 36 on the upper side surface 22 of the solar panel 12 instead of the illustrated example.

  By setting the vertical length S2 of the plate 26 and the vertical position of the plate 26 as described above, the plate 26 opposed to the downward inclined surface 20 of the solar panel 12 has both the upper and lower flat surfaces 32, 34 is opposed to the upper side surface 22 of the solar panel 12.

  According to the plate 26 arranged in this way, the wind W once hits the plate 26 and thereafter reaches the upper side 22 of the solar panel 12. Therefore, the wind W does not hit the upper side surface 22 of the solar panel 12 directly. As a result, a phenomenon in which the solar panel 12 is levitated with a relatively large force due to separation of the air flow (flow of wind W) generated on the upper side surface 22 of the solar panel 12 in the presence of the direct hit. Can be avoided. Thereby, the support burden with respect to the solar panel 12 of the support apparatus 16 can be reduced by generation | occurrence | production of the negative pressure action space area | region A mentioned later.

  Referring to FIG. 1, after hitting the back surface 30 of the plate 26, the wind W flowing over the upper flat surface 32 and the lower lower end surface 34 is on the downstream side (downward side) of the plate 26 (upper plate in the figure). 26), a negative pressure acting space region A is generated.

  The negative pressure acting space area A is a negative pressure (pressure that is small as an absolute value) a1 smaller than the negative pressure acting on the upward inclined surface 18 of the solar panel 12 when the wind W directly hits the upper side surface 22 of the solar panel 12. It affects the upward inclined surface 18. Further, when the wind W directly hits the upper side surface 22 of the solar panel 12, positive pressure acts on the downward inclined surface 20 of the solar panel 12, but the negative pressure acting space region A has negative pressure on the downward inclined surface 20. a2 is affected. For this reason, the sum (synthetic force) of the wind pressure acting on both the upward and downward inclined surfaces 18 and 20 of the solar panel 12 is relatively small.

  As shown in FIG. 2, the plate 26 has the same width as the width S4 of the solar panel 12, and is aligned so that the center line of the plate 26 is on the center line l of the solar panel 12. Yes.

  In the example shown in the drawing, the negative pressure acting space area A has a size covering the entire solar panel 12 in both the vertical direction and the horizontal direction. However, in the negative pressure working space region A having a size that encloses the entire solar panel 12, the size of the horizontal distance S1 of the plate 26 with respect to the solar panel 12 is in the range of 350 to 1000 mm according to the experiment. It is obtained when the width of the plate 26 is in the range of 90% or more of the width S4 of the solar panel 12. When outside these ranges, the negative pressure working space region A has a size that wraps a part of the solar panel 12. In addition, in order to ensure the work space for installation, maintenance, etc. of the solar panel 12 and the plate 26, the range of the horizontal direction distance S1 can be expanded to 350-3000 mm.

  The solar panel 12 receives a more effective negative pressure action when the negative pressure acting space region A has a size that wraps the whole solar panel 12 than when it has a size that wraps a part of the solar panel 12. . It is desirable that the size of the negative pressure acting space region A is practically large enough to wrap the entire solar panel 12 in both the vertical and horizontal directions.

  The size (length) of the negative pressure acting space region A in the horizontal direction also depends on the size of the vertical length S2 of the plate 26. The minimum value of the vertical length S2 of the plate 26 is the value of the distance in the vertical direction between the boundaries 36 and 38 on the upper side surface 22 of the solar panel 12.

  Next, referring to FIG. 3 and FIG. 4, a wind power reducing device according to another example is generally indicated by reference numeral 50. This wind power reducing device 50 is applied to a plurality of solar panels 12. However, the wind reduction device 50 can also be applied to a single solar panel 12. In this case, preferably, the length corresponding to the lateral length of the plate 56 of the wind reduction device 50 is a single length. In accordance with the size of the solar panel 12, a shorter one is set.

  The plurality of solar panels 12 and the plate 56 are supported in the space above the installation surface 14 via a plurality of support devices (not shown) similar to the support device 16 described above.

  The plurality of solar panels 12 includes a plurality of solar panel rows 52 that are parallel to each other, and each solar panel row 52 extends in the lateral direction (left-right direction in FIG. 3). In the illustrated example, a plurality of solar panels 12 constituting each solar panel row 52 are in contact with each other on a pair of side surfaces 54 connected to the upper side surface 22 and the lower side surface 24 of the solar panel. Further, the upper side surface 22 and the lower side surface 24 of the plurality of solar panels 12 in each solar panel row 52 are positioned on the upstream side (windward side) and the downstream side (leeward side) with respect to the direction 25 of the wind W, respectively. A gap C exists between two solar panel rows 52 adjacent to each other in the vertical direction (vertical direction in FIG. 3) perpendicular to the horizontal direction.

  The plate 56 of the wind power reducing device 50 is spaced from the plurality of solar panel rows 52 in the vertical direction (that is, from the first solar panel row 52 located on the most windward side to the windward side. At an interval), the solar panels 12 in the first row 52 are vertically arranged toward the downward inclined surface 20 of the solar panels 12. Accordingly, the plate 56 has a length equal to or greater than the lateral length of the first solar panel row 52. The horizontal distance from the first solar panel row 52 to the plate 56 is set in the same manner as in the example shown in FIG. 1 (FIG. 3).

  In the wind power reducing device 50, the flat surface 32 above the plate 56 has a vertical position between the upper boundary 36 and the lower boundary 40 from the height position of the upper boundary 36 of the plurality of solar panels 12 in each solar panel row 52. At most, the directional distance S3 is at a height position having a distance of 1/4, and the lower flat surface 34 is at the height position of the lower boundary 40 of the solar panel 12 or at a lower height position. is there. In this example, when the flat surface 34 below the plate 56 is on the installation surface 14, the height position of the flat surface 34 below is the lowest.

  In this example, the wind W grabs the flat surface 32 above the plate 56 and reaches the upper inclined surface 18 of the solar panel 12 to suppress an increase in the magnitude of the negative pressure generated on the upper inclined surface. However, the lower end surface 34 of the plate 56 located at a relatively low height is squeezed to reduce the amount of wind W that strikes the inclined surface 20 below the solar panel 12, and the solar Inflow of the wind into the space under the panel and the accompanying restoration of the entire wind flow are suppressed, and thereby the pressure acting on the lower inclined surface 20 is changed from positive to negative.

  In the wind power reducing device 50, a negative pressure acting space region B (FIG. 3) corresponding to the negative pressure acting space region A shown in FIG. The same wind reduction effect as that for the individual solar panels 12 and the effect of reducing or reducing the resultant force are exerted. Therefore, the wind power reducing device 50 is suitable for use in a mega solar power plant where tens of thousands of solar panels 12 are installed.

  The wind power reducing device 50 may further include a plate (second plate) 58 disposed in a gap C between two solar panel rows 52 adjacent to each other in the vertical direction. The second plate 58 is a plate having the same shape as the plate (first plate) 56, and is disposed in parallel with the first plate 56. The second plate 58 is installed, for example, on the windward side of the solar panel row 52 at a position where the effect received by the first plate 56 begins to greatly decrease. The second plate 58 has an effect of suppressing the inflow of the wind W onto the solar panel row 52. According to this, the same effect as the first plate 56 can exert on the solar panel row 52 and some of the other solar panel rows 52 located downstream thereof.

  The wind power reducing device 50 may further include a pair of plates (third plates) 60 that are respectively connected to both sides of the first plate 56 and extend in the longitudinal direction. The third plate 60 has the same height dimension as the first plate 56, and is disposed at the same height position as the first plate 56 or at a different height position, and in cooperation with the first plate 56. A plurality of solar panel rows 52 are surrounded from these three sides. In the third plate 60, the wind W that passes through both side surfaces 61 of the first plate 56 wraps around the plurality of solar panel rows 52 from the sides, and enters the upper and lower spaces of the solar panel rows. It is prevented that negative pressure and positive pressure are applied to both the upward and downward inclined surfaces 18 and 20 respectively.

  Numerical analysis was performed to confirm the wind force reduction effect and the resultant force reduction effect in the wind force reduction device 50 shown in FIGS. 3 and 4. The conditions for numerical analysis are as follows (see FIGS. 5 and 6).

About the solar panel row 52 and the solar panel 12 (see FIG. 5)
Number of solar panel rows 52 ... 15
Spacing between solar panel rows 52 (C): 1.4 m
Number of solar panels 12 constituting each solar panel row 52 ... 9 lengths of each solar panel 12 on the plane (horizontal x vertical) ... 9 m x 4 m
Length of each solar panel row 52 ... 81m
The mutual distance between the solar panel row 52 in the first row and the plate 56 of the wind reduction device 50... 1.0 m

About the solar panel 12 (see FIG. 6)
Height of the lower boundary 40 of the solar panel 12 from the installation surface 14 (distance e): 350 mm
Height of upper boundary 36 of solar panel 12 from installation surface 14 (distance a + b + c + d + e) ... 1,094 mm
Distance between the lower boundary 40 and the upper boundary 36 of the solar panel 12 (a + b + c + d) (a = b = c = d)... 744 mm

About wind W (see Fig. 6)
Wind velocity distribution V ... V = (Z / H ₀ ) ^0.15 where Z and H ₀ are the height from the installation surface 14 and the upper boundary 36 of the solar panel 12 from the installation surface 14, respectively. Of height.
Wind speed: Average wind speed v (= 8 m / sec) at the upper boundary 36 of the solar panel 12
Reference speed pressure: Speed pressure at the upper boundary 36 of the solar panel 12 (= 0.6 v ² (N / m ² ))

  Under the above conditions, the wind W is sent toward the plate 56, and the solar panel rows 52 in the odd-numbered rows (first row, third row,..., 15th row) are centered in the lateral direction. The wind force coefficient which the solar panel 12 (The solar panel which attached | subjected the code | symbol 1-8 in FIG. 5) which receives is calculated. The calculation method of the wind power coefficient is as follows. First, as shown in FIG. 5, 21 points P1 to P21 (FIG. 7) are set on each of the inclined surfaces 18 and 20 of each solar panel 1 to 8, and the wind pressure received at each point is set. The time average is calculated and these time averages are summed. The sum (average wind at each point) is then divided by the reference speed pressure to obtain the average wind coefficient at each point. Next, the average wind power coefficients of all points are summed and divided by the number of points 21. As a result, the wind force coefficient (spatial average) of each solar panel 1-8 is obtained.

The numerical analysis was performed on the following five cases for the plate 56. That is,
Case 1 (plate not installed),
Case 2 (with a plate occupying the range a + b + c + d in the vertical direction),
Case 3 (with a plate occupying the range a + b + c + d + e in the vertical direction),
Case 4 (with a plate occupying the range b + c + d in the vertical direction), and
Case 5 (with a plate occupying the range b + c + d + e in the vertical direction) was adopted.

The values of the wind power coefficients of the solar panels 1 to 8 obtained as a result of the numerical analysis are as shown in the table below. “Panel” in the table is an abbreviation for “solar panel”.

  From the result of the numerical analysis, the absolute value of the negative numerical value is smaller in the case (case 2 to case 5) in which the plate 56 is installed than in the case in which the plate 56 is not installed (case 1), and the solar panel 12 is smaller. It can be seen that receiving wind force, that is, the effect of reducing the wind force and the effect of reducing the resultant force appear. It should be noted that the absolute value of the wind force coefficient in each case 2 to 5 approaches the absolute value of the wind force coefficient in case 1, that is, panel 7 in case 2, panel 5 in case 3, and case 4 It is conceivable to arrange the second plate 58 on the windward side of the solar panel row including the panel 5 and, in the case 5, the panel 4.

  In addition, the panel approaching the absolute value of the wind force coefficient in case 1 (without plate) from the result of the numerical analysis on case 4 (vertical range b + c + d) and case 5 (vertical range b + c + d + e) is the panel in case 4). 5 and panel 4 in case 5. This indicates that the case 4 exerts the effect of reducing the wind force and the effect of reducing the resultant force on the solar panel array located farther than the case 5. From this, it was found that the vertical range (e) between the height position of the lower boundary 40 of the solar panel 12 and the height position of the installation surface 14 should be opened.

  Further, from the result of the numerical analysis regarding case 2 (vertical direction range a + b + c + d) and case 3 (vertical direction range a + b + c + d + e), the panel approaching the absolute value of the wind force coefficient in case 1 (without plate) is panel 7 in case 2. In case 3, it was panel 5. This indicates that the case 2 exerts the wind reduction effect on the solar panel array located farther than the case 3. Therefore, as in the cases 4 and 5, the vertical range (e) between the height position of the lower boundary 40 of the solar panel 12 and the height position of the installation surface 14 should be opened. I found it good.

  In the numerical analysis, the plates 56 of the case 2 and the case 3 are common to the plate 26 of the wind power reducing device 10 shown in FIGS. In the numerical analysis, when a plate occupying the vertical range of a + b + c was used as the plate 26, a wind force coefficient value of −0.57 was obtained for the panel 1 (see the above table). From this, it can be seen that the effect of reducing the wind force and the effect of reducing the resultant force appear even when the plate 26 is used.

10, 50 Wind reduction device 12, 52 Solar panel 16 Support device 18 Solar panel upward slope 20 Solar panel downward slope 22 Solar panel upper side 24 Solar panel lower side 26, 56 Plate 32 Plate Flat surface 34 above the plate Flat surface 36 below the plate 36 Upper boundary of the plate 40 Lower boundary of the plate

Claims (10)

A wind power reduction device for a solar panel, which is installed in an inclined state in an upper space of an installation surface and has an upward inclined surface and a downward inclined surface facing each other, and an upper side surface and a lower side surface connected to both inclined surfaces. There,
Including plates,
The plate is spaced vertically from the solar panel and is vertically arranged toward the downward inclined surface of the solar panel, and has a pair of upper and lower flat surfaces facing the vertical direction,
The wind power reducing device, wherein the plate is opposed to an upper side surface of the solar panel between both flat surfaces.   The wind power reducing device according to claim 1, wherein an interval in the horizontal direction between the solar panel and the plate is 350 to 3000 mm.   The flat surface above the plate is at the same height as the upper boundary that is the boundary between the upward inclined surface of the solar panel and the upper surface thereof, and the flat surface below the plate is the solar panel The wind power reducing device according to claim 1, wherein the wind power reducing device is at a height position higher than a height position of a lower boundary that is a boundary between the downward inclined surface and the lower surface.   The wind power reducing device according to claim 3, wherein a distance between both flat surfaces of the plate is 3/4 or more of a distance in the vertical direction between an upper boundary and a lower boundary of the solar panel.   The length of the plate in another horizontal direction orthogonal to each of the horizontal direction and the vertical direction is 90% or more of the length of the solar panel in the other horizontal direction. The wind power reduction device described.   The solar panel is supported on the installation surface via a support device, the plate is supported on the installation surface via a solar panel support device or a dedicated support device, and the plate support device is the wind power. The wind power reducing device according to claim 1, which forms part of the reducing device. A wind power reduction device for a solar panel, which is installed in an inclined state in an upper space of an installation surface and has an upward inclined surface and a downward inclined surface facing each other, and an upper side surface and a lower side surface connected to both inclined surfaces. There,
Including plates,
The plate is disposed vertically toward the downward inclined surface of the solar panel at a horizontal interval from the solar panel, and the plate has a pair of upper and lower flat surfaces opposed to the vertical direction. ,
An upper flat surface of the plate includes an upper boundary, which is a boundary between the upward inclined surface of the solar panel and an upper side thereof, and a downward inclined surface of the solar panel and a lower side thereof from a height position of the upper boundary. At a height of at least 1/4 of the vertical distance between the lower boundary and the lower boundary of the solar panel. A wind reduction device in a height position or a lower height position. A wind power reducing device for a plurality of solar panel rows extending in a lateral direction parallel to each other, comprising a plurality of solar panels arranged in an inclined state in a space above the installation surface,
Including a first plate;
The first plate is vertically arranged from the plurality of solar panel rows in a vertical direction perpendicular to the horizontal direction toward a downward inclined surface of the solar panel, and is relatively relative to the vertical direction. A pair of upper and lower flat surfaces
An upper flat surface of the first plate is formed from a height position of an upper boundary which is a boundary between an upward inclined surface of the solar panel and an upper side surface thereof, and a downward inclined surface of the upper boundary and the solar panel and the upper surface thereof. The vertical distance between the lower boundary and the lower boundary, which is a boundary with the lower surface, is at most ¼ of the distance in the vertical direction. Wind reduction device at lower boundary height position or lower height position.   The wind power reducing device according to claim 8, further comprising a second plate disposed between the two solar panel rows adjacent to each other in the vertical direction in parallel with the first plate. And a pair of third plates connected to both side portions of the first plate and extending in the longitudinal direction, the third plate surrounding the plurality of solar panel rows from three sides together with the first plate. The wind power reducing device according to claim 8 or 9.

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