JP2013179250A - Support structure of photovoltaic power generation panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support structure of a photovoltaic power generation panel capable of reducing wind power acting on the photovoltaic power generation panel, and to reduce the cost of the frame and foundation work of the panel by reducing the wind power acting on the photovoltaic power generation panel.SOLUTION: A wind control plate inclining for the photovoltaic power generation panel surface is provided at any one or both of the front edge 1a or rear edge 1b of the photovoltaic power generation panel. The wind control plate provided at the front edge 1a is any one or both of a tailwind diversion plate 5 projecting upward on the light-receiving surface 1cside of the photovoltaic power generation panel, and a ground surface wind suppression countermeasure plate 7 projecting toward the ground surface side. The wind control plate provided at the rear edge 1b is a headwind diversion plate 6 projecting to the rear surface side of the photovoltaic power generation panel.

Description

  The present invention relates to a support structure for a photovoltaic power generation panel (abbreviated in this specification and also simply referred to as a panel). More specifically, the present invention provides a support structure suitable not only for a small-scale power generation system but also for a so-called mega solar solar power generation panel in which a large-scale solar power generation apparatus is installed on a large site. About the body.

  Since a photovoltaic power generation system requires a large number of photovoltaic panels to be arranged at an angle to receive sunlight efficiently, a device / structure (frame) that supports and fixes a large number of photovoltaic panels toward the sun is required. It becomes. Here, JIS C8955 stipulates that the design of photovoltaic power generation panels is assumed to be the load acting on its own weight, wind pressure, snow cover, and earthquake. Of these loads, in mega solar, the wind load acting on the photovoltaic power generation panel is often the main load. As shown in FIG. 9A, when the wind is blowing toward the panel surface (in normal wind), the wind load generates a load in the vertical lower surface direction of the panel surface due to the wind pressure. As shown in (), when the air is blowing toward the back surface of the panel (when the wind is reversed), a load in the vertical upper surface direction of the panel surface is generated by the wind pressure. In addition, there is a wind (referred to as “surface wind”) that tends to flow under the panel along the ground surface during normal wind (see FIG. 9A). This wind generates a negative pressure on the back surface of the panel and increases the downward force (see FIG. 9A). For this reason, the support structure of the photovoltaic power generation panel must not only support the weight of the photovoltaic power generation panel but also be able to support the wind load. This will account for a large percentage of the installation cost. Therefore, for the spread of mega solar power generation facilities, it is indispensable to reduce the cost of panel support structures (bases) and foundation work by reducing wind loads, and support for photovoltaic power generation panels that reduce wind loads. A structure is desired.

  Thus, many methods for reducing the wind load applied to the photovoltaic power generation panel have been proposed. For example, by excavating or embedding the ground to form an inclined surface, and fixing an array frame on which the solar cell modules are mounted side by side on this inclined surface, it is possible to perform construction inexpensively without the need for a large concrete foundation block. It has been proposed (Patent Document 1). In addition, a method has been proposed in which slopes with low land prices are used, simple foundation work is performed on sloped terrain, and panels are directly installed to simplify the pedestal itself and reduce wind force during headwind (patents) Reference 2). Furthermore, there has been proposed a method of suppressing wind force acting in a direction in which the panel is lifted in a headwind by adding a container that fills the space of the gantry below the panel (Patent Document 3). By enclosing a liquid such as water in a container that supports the panel, the panel can be cooled by convection of water.

  In addition, two sets of photovoltaic power generation panels are mounted with an interval between the upper and lower sides of one inclined mount, and a horizontal air vent slot hole is formed between the upper and lower photovoltaic power generation panels. On the back side of the solar cell panel, a wind pressure plate that is tilted in the direction opposite to the tilt direction of the tilting frame from the middle position in the vertical direction of the frame toward the ground surface is attached, and the reverse wind hits the back side of the photovoltaic power generation panel. In order to reduce the wind pressure, it is proposed that the air pressure is applied to the wind pressure plate while being guided through the slot hole for wind draft (Patent Document 4).

Japanese Unexamined Patent Publication No. 63-4688 Japanese Patent Laid-Open No. 04-247669 JP 2006-278739 A JP 2011-82273 A

  However, in the inventions described in Patent Documents 1 and 2, since the panel is installed at a position very close to the ground in addition to the cost increase due to molding of the ground, the power generation efficiency of the panel is blocked by the accumulation of dust and the like. May fall.

  Further, according to the invention described in Patent Document 1, since it is installed on the bowl-shaped support frame formed on the slope, air flow occurs on the back of the panel so as to pass through the groove between the bowl and the bowl. Since the air flow is hindered in the supporting saddle portion, the power generation efficiency of the panel may also be reduced due to a decrease in the cooling effect of the panel by the wind.

  In addition, the back side of the mega solar panel has a complex framework shape and structure, and it is difficult to form a container that fits easily in the space on the back side of the panel and adheres closely to the back side of the panel. That is, it is not easy to install a container with a large volume as shown in Patent Document 3, and it is difficult to fill the space of the gantry below the panel without a gap. For this reason, it is difficult to sufficiently exert the function of suppressing the wind force acting in the direction in which the panel is lifted during the headwind and further cooling the panel with water in the container. Moreover, even if it is made a structure which folds in the state which extracted the liquid in a container, it cannot be said that it is small enough in quantity.

  Furthermore, in the case of the invention described in Patent Document 4, the effect of reducing the wind pressure is not exhibited when a normal wind is applied to the panel. Moreover, if the slot hole is large, the area occupied by the solar panel in the laying frame is reduced, and the amount of power generation per unit laying area is also reduced. On the other hand, if the slot hole is small, there is a problem that the wind pressure increases and the wind load in the horizontal direction increases.

  Therefore, in the conventional method of reducing the wind load applied to the photovoltaic power generation panel, a structure in which the amount of solar radiation on the panel, heat radiation from the panel, ease of installation, and the amount and cost are appropriately taken into consideration has not been obtained. Moreover, the method described above is intended to reduce wind power by arranging the panels and surrounding structures, such as molding slopes and the ground, and housing large containers under the gantry. It is not applicable to terrain, and there are problems such as measures against headwinds only and cannot cope with smooth winds, or requiring large structures other than the gantry.

  An object of this invention is to provide the support structure body of the photovoltaic power generation panel which reduces the wind force which acts on a photovoltaic power generation panel. Furthermore, an object of the present invention is to reduce the wind load acting on the photovoltaic power generation panel and to realize cost reduction related to the panel mount and foundation work.

  In order to achieve such an object, the photovoltaic panel support structure of the present invention has a wind control in which either one or both of the front edge and the rear edge of the photovoltaic panel are inclined with respect to the photovoltaic panel surface. A board is provided.

  Here, the wind control plate is installed at the front edge of the photovoltaic power generation panel, and protrudes upward toward the light receiving surface side of the photovoltaic power generation panel or toward the ground surface side. As a surface wind suppression plate, installed on the rear edge of the photovoltaic panel, it is a wind deflector for the back wind that protrudes from the back side of the photovoltaic panel opposite to the light receiving surface side. Is preferred. Further, the forward wind deflector plate and the surface wind suppression plate on the front edge side may be used in combination, or only one of them may be provided. Further, either one of the wind deflector for the forward wind or the surface wind suppression plate on the front edge and the wind deflector for the reverse wind on the rear edge may be provided, or may be used in combination. Furthermore, it is preferable that the surface wind suppression countermeasure plate is rotatable with respect to the head wind.

  The support structure for the photovoltaic power generation panel of the present invention can also be applied to a photovoltaic power generation panel constituting a mega solar power generation facility, and the wind control plate in that case constitutes the mega solar power generation facility. It is not necessary to prepare for all photovoltaic power generation panels, but it is sufficient to provide at least the panels located on the outer periphery of the mega solar panel group where the strongest wind hits, but depending on the case, all photovoltaic power generation panels may be provided. And you may make it change the inclination of a wind control board, and the protrusion amount from a panel surface between the panel of the peripheral part of a panel group, and the panel arrange | positioned inside it.

  That is, among the photovoltaic panels constituting the mega solar panel group, at least the front edge and / or the rear edge of the photovoltaic panel in the vicinity of the mega solar panel group with respect to the photovoltaic panel surface. It is preferable to provide an inclined wind control plate. In particular, among the photovoltaic panels around the mega solar panel group, when the edge of the photovoltaic panel facing the outside of the mega solar panel group is the leading edge side, the photovoltaic panel is directed upward as a wind control plate With either or both of a forward wind deflector that projects toward the light receiving surface and a surface wind suppression plate that projects toward the ground surface, and solar power generation as a wind control plate when it becomes the rear edge It is preferable to provide a wind deflector for the reverse wind that projects to the back side opposite to the light receiving surface side of the panel.

  Furthermore, the wind deflector is not limited to the case where it protrudes only on one surface of the photovoltaic power generation panel, but may be protruded on both the light receiving surface side and the back surface side in some cases. For example, the wind deflector for the forward wind on the front edge side may protrude also on the back side of the panel, and the wind deflector for the reverse wind on the rear edge side may protrude on the light receiving surface side of the panel.

  According to the support structure for a photovoltaic power generation panel according to claim 1, a part of the wind impinging on the panel is separated from the surface of the panel by the wind control plate at the front edge or the rear edge, that is, the wind deflector for forward wind or the wind deflector for reverse wind. By peeling, the wind speed is reduced and the wind force applied to the photovoltaic panel is reduced. In addition, the wind load generated on the wind deflector plate for the forward wind or the wind deflector plate for the reverse wind is in the opposite direction to the wind load generated on the surface of the photovoltaic panel. There is. In addition, the surface wind suppression countermeasure plate at the front edge of the panel reduces the surface wind that sinks under the panel, and the negative pressure generated on the back surface of the panel due to the surface wind can be suppressed accordingly, so the pressure on the panel back surface It becomes higher than when no measures are taken, and increases the upward force. That is, the wind load applied to the photovoltaic power generation panel is reduced by that amount, and the strength of the panel support structure such as the gantry and the foundation can be lowered, so that the cost can be reduced.

  In addition, since the panel itself is supported by being suspended from the ground by the gantry, the cooling effect is not lost because sufficient air flows through the entire surface without biasing the back side of the panel. In addition, because the panel is installed in a position away from the ground by the gantry, the solar power is blocked by the accumulation of dust, etc., and the cooling effect of the panel by the wind by the air flowing through the back of the panel. Can be prevented from decreasing.

  In addition, when applied to a mega solar power generation facility, even if the solar power generation panel around the mega solar panel group is equipped only with a wind deflector, the solar light at the peripheral edge is in the center of the mega solar panel group. Because the wind power is reduced by the shielding effect of the power generation panel (Japanese Industrial Standards stipulate that the wind power coefficient can be evaluated as 1/2 of the single panel. JIS C8955), the wind of the mega solar panel group as a whole The load can be reduced by a small amount of wind-warping plate.

Furthermore, when the wind deflector plate is also protruded from the surface opposite to the photovoltaic power generation panel surface to reduce the wind force, the canceling force generated by the wind deflector plate can be increased, so that the support structure The force applied to the whole object can be further suppressed.

  In addition, when the surface wind suppression plate is made to be able to rotate against the reverse wind, it acts to reduce the surface wind against the forward wind, and it is lifted to near horizontal by the wind force during the reverse wind. It is possible to prevent the floating force from being generated on the photovoltaic power generation panel, and to reduce the adverse effect of the headwind.

It is a schematic diagram which shows an example of embodiment of the support structure for solar power generation panels concerning this invention. It is a schematic diagram which shows the mode of the wind load in the support structure for solar power generation panels, (A) shows the state of the wind load applied to the panel at the time of a normal wind, and (B) shows the state of being applied to the panel at the time of headwind (C) shows the state of the wind load during normal wind applied to a panel provided with both the forward wind deflector plate and the surface wind suppression plate. In the figure, the signs “+” and “−” represent the pressure change since no countermeasure was taken. The broken arrow represents the force acting on the panel when no countermeasure is taken, and the solid arrow represents the additional force acting on the panel support structure including the wind control plate of the present invention. It is a figure which shows the equipment standard of a surface wind suppression countermeasure board, (A) shows the case where the effect of a surface wind suppression countermeasure board is effective, and (B) cannot anticipate an effect, even if equipped. It is a principle figure which shows embodiment with which the surface wind suppression countermeasure board was rotatably equipped, (A) shows the movement at the time of a normal wind, (B) shows the movement at the time of a reverse wind. It is a layout figure which shows an example of the mega solar panel group to which the support structure for solar power generation panels concerning this invention is applied. It is explanatory drawing which shows roughly an example of arrangement | positioning of the wind deflector board for forward winds, the wind deflector board for back winds, and the surface wind suppression countermeasure board in a mega solar power station. It is a schematic diagram which shows other embodiment of the support structure for solar power generation panels concerning this invention. It is a schematic diagram which shows other embodiment of the support structure for solar power generation panels concerning this invention. It is a schematic diagram which shows the conventional support structure for photovoltaic power generation panels, (A) shows the state of wind load applied to the panel during normal wind, and (B) shows the state of wind load applied to the panel during headwind. Also shown. In the figure, the signs “+” and “−” represent pressure changes from the time of no wind, and the broken arrow represents the force acting on the panel.

  Hereinafter, the configuration of the present invention will be described in detail based on embodiments shown in the drawings.

  In FIG. 1, an example of embodiment of the support structure for solar power generation panels concerning this invention is shown. The solar power generation panel support structure includes wind control plates 5, 6, and 7 that are inclined with respect to the panel surface 1 c on both the front end edge 1 a and the rear end edge 1 b of the solar power generation panel 1. In the case of this embodiment, the front end edge 1a of the photovoltaic power generation panel has a wind control plate (hereinafter referred to as a forward wind deflector 5 for forward wind) protruding upward from the front end edge 1a of the photovoltaic power generation panel 1, and the ground surface. A wind control plate (hereinafter referred to as a surface wind suppression measure plate 7) protruding toward the side, and a wind control plate (hereinafter referred to as a reverse wind) protruding toward the back side is provided at the rear edge 1b of the photovoltaic power generation panel. A wind-warping plate 6).

  The forward wind deflector 5 and the surface wind suppression plate 7 may be used in combination, or only one of them may be used. For example, when there is a restriction on the passage width between adjacent photovoltaic power generation panels 1, only the surface wind suppression measure plate 7 may be installed without providing the forward wind warping plate 5. Further, the forward wind deflector plate 5 and / or the surface wind suppression plate 7 and the reverse wind deflector plate 6 may be used in combination, but in some cases, only the reverse wind deflector plate is provided alone. There is also. For example, the solar power generation panel on the rear edge side of the mega solar panel group has little wind load reducing effect even if the wind deflector plate 5 for the front wind and the surface wind suppression plate 7 are used in combination, and in some cases, it is adversely affected by the headwind Therefore, it is preferable to provide only the wind deflector 6 for the head wind.

Here, each of the wind deflectors 5 and 6 and the surface wind restraining countermeasure plate 7 for the front wind and the back wind are disposed along at least the front edge 1a or the rear edge 1b of the photovoltaic power generation panel 1 and is provided on the panel surface 1c. It only has to be installed so as to protrude toward the light receiving surface 1c ₁ side of the photovoltaic power generation panel 1 or the back surface 1c ₂ side opposite thereto so as to be inclined. That is, each of the wind deflectors 5 and 6 and the surface wind suppression plate 7 for the front wind and the back wind may be installed so as to be directly attached to the frame 3 around the photovoltaic power generation panel 1 by welding or bolting. Although it is good, it may be arranged along the front edge 1a and the rear edge 1b of the photovoltaic power generation panel 1 by being attached to the gantry 4 depending on circumstances. In addition, the relationship between the wind deflectors 5 and 6 for the forward wind and the reverse wind and the surface wind suppression measure plate 7 and the photovoltaic power generation panel 1 in the present embodiment is as follows: the front edge 3a of the frame 3 of the photovoltaic power generation panel 1 and The wind guide plates 5 and 6 for the forward wind and the reverse wind and the surface wind suppression measure plate 7 are fixed directly to the rear end edge 3b by welding or bolting. The solar power generation panel 1 is supported by a frame 3 surrounding the periphery thereof and is maintained in a certain shape, while a stand 4 for supporting the solar power generation panel 1 via the frame 3 and the stand 4 are supported. A support structure for a photovoltaic power generation panel is constituted by the base portion 5.

Moreover, the inclination angle with respect to the photovoltaic power generation panel 1 of each of the wind deflectors 5 and 6 for the forward wind and the reverse wind and the surface wind suppression countermeasure plate 7 changes the direction of the wind hitting the photovoltaic power generation panel 1 or causes separation of the flow. The angle may be any angle that gives an action to be generated, but is more preferably an angle that does not create shade on the panel surface. For example, the angle theta ₁ to the favorable wind for wind deflector 5, when set to a large angle so as to cover over much standing have or receiving surface 1c ₁ of the panel, creating a shadow on the light receiving surface 1c ₁ of the panel Therefore, it is not preferable. On the other hand, it is not preferable because too small an angle θ ₁ of the deflector 5 style for favorable wind to reduce wind deflect effect. Therefore, the angles θ ₁ , θ ₂ , θ ₃ and the protruding lengths of the wind deflector plates 5 and 6 for the front wind and the back wind and the surface wind suppression plate 7 should be obtained using wind tunnel experiments or numerical fluid analysis. Is desirable. For example, the angle θ ₁ of the wind deflector 5 for the forward wind is set in the range of 0 ° to 90 °, preferably in the range of 30 ° to 50 ° around the horizontal plane in the counterclockwise direction. In addition, the angle θ ₂ of the surface wind suppression measure plate 7 protruding toward the ground surface side at the front edge of the photovoltaic power generation panel is in the range of 0 ° to 90 ° counterclockwise with respect to the horizontal plane, preferably The range is from 70 ° to 90 °. Further, the angle θ ₃ of the wind deflector 6 for the head wind is set in the range of 0 ° to 90 °, preferably in the range of 60 ° to 80 °, in the clockwise direction with respect to the horizontal plane. The angle θ ₂ of the surface wind suppression measure plate 7 is basically determined independently of the angle θ ₁ . That is, the angle theta ₂ of surface wind suppression plate 7 is basically in the range of 0 to 90 °. However, in the case where the forward wind deflector plate 5 and the surface wind suppression plate 7 are manufactured as a single piece of continuous plate, the angle θ ₂ of the surface wind plate 7 is (180−θ _1). ) °. Further, each of the wind deflectors 5 and 6 and the surface wind suppression plate 7 for the front wind and the back wind is not limited to a flat plate, but may be a structure having a curved surface shape such as a blade shape or a part thereof.

  Moreover, the installation of the surface wind suppression measure plate 7 is effective when the photovoltaic power generation panel 1 is installed near the ground surface and when the photovoltaic power generation panel 1 is installed mainly at a position where it receives smooth wind. It is. As the distance between the panel 1 and the ground surface is narrower, the negative pressure generated on the back surface of the panel due to the surface wind is suppressed. Therefore, by further reducing this distance by the surface wind suppression measure plate 7, this effect is further increased. Can be increased. On the other hand, when the photovoltaic power generation panel 1 is installed away from the ground surface, the influence of the ground surface does not reach the flow on the back surface of the photovoltaic power generation panel 1, and the surface effect of the ground surface wind suppression countermeasure plate 7 is reduced. This is because an increase cannot be expected. For example, as shown in FIG. 3, it is installed when the relationship between the height d from the ground surface of the photovoltaic panel 1 and the height (thickness) H of the photovoltaic panel 1 itself is d ≦ H. Is effective. On the other hand, the presence of the surface wind suppression measure plate 7 whose installation angle is fixed generates a force that rises on the photovoltaic power generation panel 1 due to the reverse wind, so that the effect of suppressing the surface wind is low when d> H. Rather, the presence of the surface wind suppression measure plate 7 may not be preferable. Therefore, in the case of the surface wind suppression measure plate 7 whose angle is fixed, depending on the height H from the ground surface of the photovoltaic power generation panel 1 or the like, whether the wind received is normal wind or reverse wind, You may make it select non-use, and it is good also as an attachment structure which can attach or detach the surface wind suppression countermeasure board 7 with respect to the flame | frame 3 or the mount frame 4 of the photovoltaic power generation panel 1. FIG.

  Further, as shown in FIG. 4, the surface wind suppression countermeasure plate 7 may be configured to be rotatable in a range of about 90 °, that is, in a range of substantially horizontal (0 °) to vertical (90 °). And the surface wind suppression countermeasure board 7 in this case needs to be lightweight to such an extent that it is swayed by the wind in order to reduce adverse effects during headwind. For example, as shown in FIG. 4, it is provided so as to be rotatable in a range of 90 ° using a mechanism that rotates by wind power around the hinge 10. That is, the movement of the surface wind suppression measure plate 7 is prevented by the stopper 11 at the rear of the hinge 10 during normal wind, and is kept vertical, and is lifted to near horizontal by the wind force during headwind. Thereby, it can prevent generating the force which floats on the photovoltaic power generation panel 1 by a back wind. Therefore, when the photovoltaic power generation panel 1 is installed near the ground surface and applied to the photovoltaic power generation panel 1 that receives not only forward wind but also back wind, the ground surface in which the surface wind is arranged vertically is used. While it is suppressed and reduced by the wind suppression plate 7, when it receives a reverse wind, the surface wind suppression plate 7 is swept almost horizontally to remove the negative wind and effectively suppress only the surface wind. be able to. That is, in the case of the rotary surface wind suppression measure plate 7, the plate can be installed not only in a place where it receives normal wind but also in a place where it receives back wind. In the above-described embodiment, the structure is configured to rotate by wind force. However, the structure is not particularly limited to this, and can be driven to rotate at an arbitrary angle by an unillustrated motor or an actuator such as hydraulic or pneumatic pressure. It is also possible to use a mechanism, and in this case, the surface wind suppression measure plate 7 can be rotated even if it is not lightweight.

Also, increasing the protrusion amount is more than necessary from the light receiving surface 1c _first photovoltaic panel 1 to the favorable wind for wind deflector 5, there is a possibility that the area becomes correspondingly shade increases undesirably. Therefore, the amount of protrusion of the forward wind deflector 5 toward the light receiving surface 1c ₁ is high enough to reduce wind load due to the windproof effect of the forward wind deflector 5 and the light receiving surface 1c _{1 of the} photovoltaic power generation panel _1. It is preferable to set the height so that the shade is not greatly dropped. Furthermore, the width of each of the wind deflectors 5 and 6 for the front wind and the back wind and the surface wind suppression measure plate 7 may extend over the entire width of the front edge 1a and the rear edge 1b of the photovoltaic power generation panel 1. It is more effective and preferable for reducing wind load, but is not necessarily limited to this. In some cases, the width of the front edge 1a and the rear edge 1b of the photovoltaic power generation panel 1 is narrower or in some cases. It may be set widely. Furthermore, in order to enhance the flow rectification effect, the noise reduction effect, or the vibration suppression effect of the structure, each of the wind deflector plates 5 and 6 for the forward wind and the reverse wind and the surface wind suppression plate 7 are perforated plates, corrugated plates, end plates. You may use the board etc. which have an unevenness | corrugation in a part.

According to the support structure for a photovoltaic power generation panel configured as described above, the wind condition around the panel changes as shown in FIG. That is, during normal wind, as shown in FIG. 2 (A), flow separation occurs in the wind deflector 5 for wind flow arranged at the front edge 1a of the photovoltaic power generation panel 1 on the upstream side. A decrease in wind force applied to the photovoltaic power generation panel 1 can be expected due to the decrease in wind speed. In addition, since the wind load can be expected to be reduced by the windproof effect of the wind draft plate 5 for the forward wind, the wind load generated on the wind draft plate 5 for the forward wind is in the opposite direction to the wind load generated on the surface of the photovoltaic power generation panel. There is an effect of canceling the wind force generated on the surface of the photovoltaic power generation panel 1. Further, at the time of headwinds, 2 (B), the upstream side and becomes photovoltaic panel 1 of the rear edge 1b to arranged flow separation headwinds for wind deflector 6 at the back of the panel 1c ₂ side It can be expected that a decrease in wind force (force to lift the panel, hereinafter referred to as lifting force) applied to the photovoltaic power generation panel 1 as lift by lowering the wind speed in the separation region. Also, on reduction of the lifting force by windbreak headwinds for wind deflector 6 can be expected, because the wind load generated on headwind for wind deflector 6 is composed of a lifting force in the opposite direction generated on the back of the panel 1c ₂ This has the effect of canceling the lifting force generated on the back surface 1c ₂ side of the photovoltaic power generation panel 1. Further, when the surface wind suppression measure plate 7 is provided alone, or when used together with the wind draft plate 5 for the forward wind, as shown in FIG. Therefore, the negative pressure generated on the back surface of the photovoltaic power generation panel 1 can be suppressed accordingly. For this reason, since the negative pressure of the panel back surface resulting from the surface wind can be suppressed by the amount of the surface wind being reduced, the pressure on the panel back surface becomes higher than when no countermeasure is taken, and the upward force is increased. That is, the wind load during normal wind can be reduced.

Moreover, the solar power generation panel 1 has almost no influence on the amount of solar radiation and the heat radiation effect, and the solar power generation panels 5 and 6 for the front wind and the back wind and the surface wind suppression countermeasure plate 7 are used for the solar power generation. The wind load generated on the power generation panel 1 can be greatly reduced. Further, each of the wind deflectors 5 and 6 and the surface wind restraining countermeasure plate 7 for the forward wind and the reverse wind have a relatively simple structure called a plate-like object, and can be basically maintenance-free.

  5 and 6 show an example of an embodiment in which the present invention is applied to a support structure for a photovoltaic power generation panel of a mega solar panel group. When the present invention is applied to the support structure of the photovoltaic power generation panel of the mega solar panel group, it may be installed on all the photovoltaic power generation panels 1 constituting the mega solar panel group, but in principle, the strongest wind hits. It is preferable that the wind deflector plate 5 for wind flow and / or the surface wind suppression plate 7 or the wind deflector plate 6 for reverse wind is attached to the panel located on the outer peripheral portion of the mega solar panel group. Specifically, as shown in FIG. 5, the wind power generation panels 1 around the mega solar panel group shown with hatching include wind deflectors 5 and 6 for front wind and head wind, and surface wind. Any or all of the suppression countermeasure plates 7 are provided. Even in this case, the wind power is generated by the shielding effect by the solar power generation panel 1 at the peripheral edge and the wind deflectors 5 and 6 for the forward wind and the reverse wind and the surface wind suppression measure plate 7 provided at the central portion of the panel group. Therefore, the wind load applied to the photovoltaic power generation panel 1 inside the mega solar panel group is reduced, and the wind load reducing effect as the whole mega solar panel group is obtained. Therefore, the wind load of the mega solar panel group as a whole can be reduced by the small number and amount of each of the wind deflectors 5 and 6 and the surface wind suppression countermeasure plate 7 for the forward wind and the reverse wind. Here, the surface wind suppression measure plate 7 is provided as needed only when the outermost peripheral part of the mega solar panel group is the front edge side 8, and when the outermost peripheral part of the mega solar panel group is the rear edge side 9 In particular, it is better not to provide the fixed-surface-type surface wind suppression countermeasure plate 7 because a lifting force may be generated on the photovoltaic power generation panel 1 due to the reverse wind. Of course, when there is a restriction in the passage width between the photovoltaic power generation panels 1 adjacent to each other in the mega solar panel group, it is possible to install only the surface wind suppression countermeasure plate 7 without providing the forward wind warping plate 5. is there.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention. For example, each of the wind deflectors 5 and 6 and the surface wind suppression countermeasure plate 7 for forward wind and reverse wind is added to the support portion of the wind deflector plates 5 and 6 and the surface wind suppression countermeasure plate 7 in addition to the effect of reducing the wind load. The size and shape can be changed in consideration of the moment. For example, as shown in FIG. 7, the mounting angle or size may be different from that of the wind deflector 2 in FIG. Here, the windproof effect on the surface of the photovoltaic power generation panel 1 increases as the windward wind deflector plate 5 increases and the mounting angle becomes closer to the vertical, but the wind force applied to the wind deflector plate 5 increases and the sunlight increases. Since a parallel force acts on the power generation panel 1, a shearing force component for the support structure increases. On the other hand, in order not to reduce the power generation efficiency, it is desirable that no shadow of the forward wind deflector 5 is generated on the panel surface. Accordingly, the size and shape of the forward wind deflector 5 are set by balancing the effects of the shear force generated on the support structure and the shadow of the wind deflector 5 for the forward wind generated on the panel surface and the wind load reducing effect. It is preferable to do. Moreover, although not shown in the figure, it is desirable to provide a drain hole so that rainwater does not collect in the wind deflector 2 on the front edge 1a which is the lowest position of the photovoltaic power generation panel 1.

  Further, each of the wind deflectors 5 and 6 for the forward wind and the reverse wind is not only projected on the surface on the side where the wind load reducing effect and the lifting force reducing effect of the photovoltaic power generation panel 1 are expected, but on the opposite side. You may make it protrude also on the surface. For example, as shown in FIG. 8, the wind draft plate 5 for the forward wind and the wind deflector plate 6 for the reverse wind arranged along the front edge 1 a and the rear edge 1 b of the photovoltaic power generation panel 1 are arbitrarily disposed on the opposite side. Make it protrude by the length. Thereby, for example, in the case of a reverse wind, there is an effect of increasing the downward force of the wind deflector 6 for the reverse wind. In the case of normal wind, there is an effect of increasing the upward force of the wind deflector 5 for the normal wind. Thereby, the force applied to the entire support structure can be suppressed.

DESCRIPTION OF SYMBOLS 1 Photovoltaic power generation panel 1a Front edge 1b Rear edge 1c Panel surface 1c ₁ Light-receiving surface 1c ₂ Panel back surface 2 Mount 3 Frame 4 Base part 5 Wind draft plate for forward wind 6 Wind curve plate for reverse wind 7 Surface wind suppression measure plate 8 Megger Front edge side of solar panel group 9 Rear edge side of megger solar panel group 10 Hinge 11 Stopper

Claims (9)

A support structure for a photovoltaic power generation panel, comprising a wind control plate that is inclined with respect to the surface of the photovoltaic power generation panel at one or both of a front edge and a rear edge of the photovoltaic power generation panel. 2. The solar power generation panel according to claim 1, wherein the wind control plate is a wind deflector for forward wind that is installed at a front edge of the solar power generation panel and protrudes upward toward a light receiving surface of the solar power generation panel. Support structure. The wind control plate is a wind deflector for a reverse wind that is installed at a rear edge of the photovoltaic power generation panel and protrudes on the back surface side opposite to the light receiving surface side of the photovoltaic power generation panel. Support structure for solar power generation panels. 2. The support structure for a solar power generation panel according to claim 1, wherein the wind control plate is a surface wind suppression countermeasure plate that is installed at a front end edge of the solar power generation panel and protrudes toward the ground surface side. Among the photovoltaic panels constituting the mega solar panel group, at least the front edge and / or the rear edge of the photovoltaic panel around the mega solar panel group is inclined with respect to the photovoltaic panel surface. A support structure for a photovoltaic power generation panel, comprising: Among the photovoltaic panels around the mega solar panel group, when the edge of the photovoltaic panel facing the outside of the mega solar panel group is a front edge side, the sun is directed upward as the wind control plate The wind control plate is provided with one or both of a wind draft plate for forward wind projecting toward the light receiving surface side of the photovoltaic panel and a surface wind suppression measure plate projecting toward the ground surface side, and the wind control plate when it becomes the rear edge The solar power generation panel support structure according to claim 5, further comprising: a wind deflector for a reverse wind that protrudes toward the back surface opposite to the light receiving surface side of the solar power generation panel. The support structure for a photovoltaic power generation panel according to claim 4 or 6, wherein the surface wind suppression countermeasure plate is rotatable against a reverse wind. The support structure for a photovoltaic power generation panel according to claim 2 or 6, wherein the wind deflector for forward wind also projects to the back side of the photovoltaic power generation panel. The support structure for a solar power generation panel according to claim 3 or 6, wherein the wind deflector for the reverse wind protrudes toward the light receiving surface of the solar power generation panel.