Support device for photovoltaic generation facility

The support device for photovoltaic power generation systems adjusts buoyancy and gravity to stabilize floating devices on water surfaces, reducing underwater volume and animal adhesion while enhancing stability.

JP2025111393AActive Publication Date: 2025-07-30SUN RISE E & T
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Patent Information

Application Number
JP2024232629
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-17
Filing Date
2024-12-27
Publication Date
2025-07-30
Estimated Expiration
2044-12-27

AI Technical Summary

Technical Problem

Conventional floating photovoltaic power generation devices face issues with stability due to improper buoyancy and center of gravity distribution, leading to potential adhesion of sessile animals and instability on water surfaces.

Method used

A support device comprising a pedestal, floating bodies with adjustable buoyancy, center-of-gravity adjustment means, and mounting frames, which allows for controlled buoyancy and gravity adjustment to stabilize the system.

Benefits of technology

The device reduces underwater volume, minimizes animal adhesion, and enhances stability by ensuring the center of gravity is below the buoyancy, thus improving the floating system's stability and resistance to wave damage.

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Abstract

To provide a support device for a photovoltaic generation facility aiming to improve stability of the photovoltaic generation facility floating on a water surface.SOLUTION: A support device for supporting a photovoltaic generation facility C while floating on a water surface includes a pedestal 1, a plurality of floating bodies 2, a plurality of center-of-gravity adjustment means 4, and a plurality of placement frames 6. The pedestal 1 has a plurality of alignment grooves 111 extending in a length direction A as well as mutually having space in between them formed in a width direction B. The floating bodies 2 are arranged in the respective alignment grooves 111 as well as both being composed to be capable of floating on a water surface surrounding an inner space 21. Buoyancy of the floating bodies 2 can be adjusted by filling a prescribed liquid or gas inside the inner space 21 of the floating body 2. The center-of-gravity adjustment means 4 extends below the plurality of floating bodies 2 from the pedestal 1. The placement frames 6 are arranged on the pedestal 1 so that a placement space 61 is defined for placing the photovoltaic generation facility C.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a support device, and more specifically, to a support device for installing a photovoltaic power generation facility for supporting a photovoltaic power generation facility (for example, a Photovoltaics box) while floating on the water surface.

Background Art

[0002] To install a large-scale photovoltaic power generation system, a large facility site is required. However, it is difficult to secure land. Thus, photovoltaic power generation technology for generating electricity in vast water areas such as the sea or a lake far from the shore is being developed.

[0003] When a photovoltaic power generation system is installed in a water area relatively far from the shore, in addition to the photovoltaic power generation panels for generating electricity, power equipment such as transformers, inverters, boost converters, and capacitors also needs to be installed in that water area.

[0004] Currently, a floating type of floating photovoltaic power generation device on the water surface, on which a platform for mounting those devices floats, is generally adopted.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in a floating type of floating photovoltaic power generation device, when the buoyancy of the platform is insufficient, the volume of the part of the platform underwater becomes relatively large. Then, the part where there is a risk of being attached by sessile animals such as barnacles on the platform becomes relatively large.

[0007] On the other hand, if the buoyancy of the platform is too large, the volume of the part of the platform below the water surface is relatively small, but the center of gravity of the platform is located at a relatively high position. If the center of gravity of the floating solar power generation device is higher than the center of buoyancy of the floating solar power generation device, it may affect the stability of the floating solar power generation device on the water surface. Therefore, there is room for improvement in the design of the conventional floating solar power generation device.

[0008] Therefore, in view of the above problems, an object of the present invention is to provide a support device for installing a solar power generation facility that can solve at least one of the above-mentioned drawbacks.

Means for Solving the Problems

[0009] As a means for achieving the above object, the present invention is a support device for installing a solar power generation facility for supporting a solar power generation facility while floating on the water surface, configured to have a length direction and a width direction orthogonal to the length direction, and including a pedestal, a plurality of floating bodies, at least one center-of-gravity adjustment means, and at least one mounting frame, The pedestal is configured to extend along the length direction, and a plurality of positioning grooves are formed that extend along the length direction and are arranged at intervals along the width direction, The plurality of floating bodies are respectively arranged in the plurality of positioning grooves below the pedestal, and each of them surrounds an inner space and is configured to float on the water surface, A part of each of the floating bodies protrudes downward from the corresponding positioning groove, By filling a predetermined liquid or gas into the inner space of the floating body, the buoyancy of the floating body can be adjusted, The at least one center-of-gravity adjustment means is connected to the pedestal and extends downward from the pedestal to below the plurality of floating bodies, The at least one mounting frame is disposed on the pedestal and configured to have a mounting space for mounting the solar power generation equipment. A support device for installing a solar power generation equipment is provided, characterized by this.

Effect of the Invention

[0010] According to the support device for installing a solar power generation equipment according to the present invention, by filling a predetermined liquid or gas in the inner space of the floating body, the buoyancy of the floating body can be adjusted. Therefore, the volume of the part of the support device for installing the solar power generation equipment underwater can be reduced, and the adhesion of sessile animals to the support device can be suppressed.

[0011] Also, by using the weight of the center-of-gravity adjustment means, the center of gravity of the combined solar power generation equipment and the support device for mounting it can be set to be below the center of its buoyancy. Therefore, the stability of the solar power generation equipment floating on the water surface can be improved.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0013] The support device for installing solar power generation equipment according to the present invention is for supporting solar power generation equipment while floating on the water surface in a floating type of water surface solar power generation system.

[0014] Hereinafter, the support device for installing solar power generation equipment according to the present invention will be described with reference to the drawings.

[0015] With reference to FIGS. 1 to 5, the configuration of the support device for installing solar power generation equipment according to the present invention will be described. Here, FIG. 1 is a perspective view showing the configuration of the support device for installing solar power generation equipment according to an embodiment of the present invention and the state in which the solar power generation equipment C is placed, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a partial perspective view showing the configuration of the support device for installing solar power generation equipment according to this embodiment.

[0016] Further, FIG. 4 is a partial side sectional view showing the configuration and arrangement relationship of the floating body 2, the platform 5, and the center-of-gravity adjustment means 4 in the support device for installing solar power generation equipment according to this embodiment, and FIG. 5 is a partial front sectional view showing the configuration of the support device for installing solar power generation equipment according to this embodiment.

[0017] The support device for installing solar power generation equipment according to an embodiment of the present invention is configured to have a length direction A and a width direction B orthogonal to the length direction A as shown in FIGS. 1 and 2, and includes a pedestal 1, a plurality of floating bodies 2, a plurality of reinforcing plates 3 (see FIG. 2), at least one center-of-gravity adjustment means 4, two platforms 5, at least one mounting frame 6, and a protective member 7.

[0018] As shown in FIG. 1, the pedestal 1 is configured to extend along the length direction A and has two support frames 11 arranged adjacent to each other in the width direction B.

[0019] In addition, as shown in FIGS. 2 and 3, a plurality of positioning grooves 111 are formed in the pedestal 1, which extend along the length direction A and are arranged at intervals along the width direction B.

[0020] As shown in FIGS. 1 to 3, each support frame 11 includes two tubular portions 112 and a plurality of connecting portions 113.

[0021] As shown in FIGS. 1 to 3, the two tubular portions 112 are arranged at intervals along the width direction B. As shown in FIG. 2, in each support frame 11, the positioning groove 111 is between the two tubular portions 112. That is, in this embodiment, two positioning grooves 111 are formed in the pedestal 1, and one positioning groove 111 is spaced from the other positioning groove 111 in the width direction B.

[0022] As shown in FIGS. 1 to 3, the plurality of connecting portions 113 are arranged at intervals along the length direction A and are all configured to connect the two tubular portions 112.

[0023] In this embodiment, the number of support frames 11 is two, but it is not limited thereto. In other embodiments, the same effect can be obtained by installing the support frames 11 in other quantities.

[0024] As shown in FIGS. 2 to 4, the plurality of floating bodies 2 are respectively arranged in a plurality of positioning grooves 111 (two positioning grooves 111 in this embodiment) below the pedestal 1 and are divided into two groups respectively arranged in the two positioning grooves 111.

[0025] As shown in FIGS. 1 and 3, in each group, the plurality of floating bodies 2 are arranged at intervals along the length direction A, and each floating body 2 is positioned between the two connecting portions 113 in the length direction A.

[0026] As shown in FIGS. 2 to 4, the plurality of floating bodies 2 all surround the inner space 21 and are configured to float on the water surface. And a part of each floating body 2 protrudes downward from the corresponding positioning groove 111.

[0027] Specifically, most of each floating body 2 is located below the corresponding tubular portion 112. With such a configuration, when the support device for installing the solar power generation facility is installed on the water surface, the plurality of floating bodies 2 can apply an upward force to the pedestal 1. Further, by filling the inner space 21 of the floating body 2 with a predetermined liquid or gas, the buoyancy of the floating body 2 upward can be adjusted.

[0028] As shown in FIG. 2, each reinforcing plate 3 is connected to two of the plurality of floating bodies 2 that are arranged adjacent to each other in the width direction B. Thereby, the stability of the plurality of floating bodies 2 can be improved.

[0029] At least one gravity adjustment means 4 is connected to the pedestal 1 and extends downward from the pedestal 1 to below the plurality of floating bodies 2 as shown in FIGS. 1 to 2. In the present embodiment, there are a plurality of at least one gravity adjustment means 4, and the plurality of adjustment means 4 are connected to some of the plurality of connecting portions 113.

[0030] As shown in FIGS. 1 to 4, each gravity adjustment means 4 includes a plurality of hanging portions 41 and weights 42.

[0031] As shown in FIGS. 2 to 4, one end of each of the plurality of hanging portions 41 is connected to two adjacent connecting portions 113 in the width direction B of the plurality of connecting portions 113 of the two support frames 11. In the present embodiment, the number of hanging portions 41 in each gravity adjustment means 4 is four, and they are divided into two groups each including two of them, and the hanging portions 41 are arranged at intervals along the width direction B. Each group corresponds to each support frame 11, and the two hanging portions 41 in each group are connected to any one of the connecting portions 113 of each support frame 11, but it is not limited thereto.

[0032] As shown in FIGS. 1 to 4, the weight 42 is connected to the other end of each of the plurality of hanging portions 41 and is located below the plurality of floating bodies 2.

[0033] As shown in FIGS. 1 to 2, the two platforms 5 are respectively arranged on the two support frames 11. And as shown in FIGS. 3 and 5, each platform 5 includes a plurality of tread plates 51 and a connecting portion 52.

[0034] As shown in FIGS. 3 and 5, each tread plate 51 is arranged on the support frame 11 so as to span two tubular portions 112 in the corresponding support frame 11, and a part (see FIG. 5) extends into the positioning groove 111.

[0035] As shown in FIGS. 3 and 5, the connecting portion 52 is in the positioning groove 111, extends along the length direction A, and connects the plurality of tread plates 51 so that the plurality of tread plates 51 are arranged along the length direction A.

[0036] As shown in FIGS. 3 and 4, the plurality of tread plates 51 are divided into a plurality of groups. The plurality of (four in the illustrated example) tread plates 51 in each group are between two adjacent connecting portions 113 in the length direction A, are arranged along the length direction A, and are above the corresponding one floating body 2.

[0037] It should be noted that FIG. 3 is a perspective view showing some of the tread plates 51 omitted for further explaining the structure of the present invention (for example, the arrangement relationship between the connecting portion 52 or the floating body 2 and the support frame 11 of the pedestal 1, etc.).

[0038] As shown in FIGS. 1 to 3, at least one mounting frame 6 is arranged on the pedestal 1 and is configured to have a mounting space 61 for mounting the solar power generation equipment C.

[0039] In this embodiment, the solar power generation equipment C is a PV box (Photovoltaics box) in which power equipment (such as a transformer, an inverter, a boost converter, a capacitor, etc.) connected to a solar power generation panel for power generation is contained in a container, but it is not limited thereto here.

[0040] Further, in the present embodiment, as shown in FIGS. 1 and 3, there are a plurality of at least one mounting frame 6, and each mounting frame 6 is provided on some of a plurality of connecting portions 113 in the two support frames 11.

[0041] As shown in FIGS. 1 to 3, the protective member 7 is provided on the pedestal 1 and includes a pipe frame 71 and a plurality of shielding plates 72 for blocking the waves on the water surface.

[0042] As shown in FIGS. 1 to 3, the pipe frame 71 is provided on either one of both sides along the width direction B of the pedestal 1.

[0043] As shown in FIGS. 1 and 3, the plurality of shielding plates 72 are provided on the pipe frame 71 and are arranged adjacent to each other along the length direction A. And, the normal direction of the plate surface of each shielding plate 72 is parallel to the width direction B.

[0044] As shown in FIG. 3, a plurality of ventilation holes 73 penetrating along the width direction B are formed in each shielding plate 72. Thereby, when the support device for installing a solar power generation facility according to the present invention receives strong wind in a water area, the airflow along the width direction B passes through those ventilation holes 73, so that it is possible to effectively prevent the support device for installing a solar power generation facility from falling down.

[0045] In the present embodiment, the above-described tubular portion 112 is formed as a hollow tube body that can float on the water surface. And, by adjusting the liquid or gas filled in the inner space 21 of the floating body 2 according to needs, for example, changing it to different densities or different amounts of liquid or gas, that is, by adjusting the buoyancy of the floating body 2, the force applied to the pedestal 1 can be adjusted.

[0046] Here, regarding the buoyancy described above, it is preferable that the surface area of the part of the floating body 2 below the water surface is set within the range of 30% to 50% of the total surface area of the floating body 2. By doing so, the volume of the part of the support device for installing the solar power generation facility in this embodiment that is underwater is minimized, so that the number of sessile animals (for example, barnacles, etc.) adhering to the support device for installing the solar power generation facility can be reduced.

[0047] Further, by means of the weights 42 below the plurality of floating bodies 2, the center of gravity of the combined solar power generation facility C according to this embodiment and the support device for mounting the same can be set to be below the center of buoyancy. In this way, the stability of the solar power generation facility C according to this embodiment and the support device for installing the solar power generation facility floating on the water surface can be improved.

[0048] When the support device for installing the solar power generation facility according to the present invention is actually applied, since it is arranged so as to surround the solar panels floating on the water surface, the shielding plate 72 of the protective member 7 is arranged on the outside in the width direction B, so that it can block the waves on the water surface, and it can effectively prevent those solar panels from being damaged by the waves.

[0049] In summary, according to the support device for installing the solar power generation facility according to the present invention, by filling a predetermined liquid or gas in the inner space 21 of the floating body 2, the buoyancy of the floating body 2, that is, the upward force applied to the pedestal 1 can be adjusted. Therefore, the volume of the part of the support device for installing the solar power generation facility in this embodiment that is underwater can be reduced, and the number of adhering sessile animals can be suppressed.

[0050] Also, by means of the weights 42 of the center of gravity adjusting means 4, the center of gravity of the combined solar power generation facility C according to this embodiment and the support device for installing the solar power generation facility can be set to be below the center of buoyancy, so that the stability of the solar power generation facility C according to this embodiment floating on the water surface can be improved.

[0051] In the above, many specific details have been shown to facilitate an overall understanding of the present invention. However, it is obvious to those skilled in the art that one or more other embodiments can be implemented without showing specific details.

[0052] As described above, the preferred embodiments and variations of the present invention have been explained. However, the present invention is not limited to these, and all modifications and equivalent configurations are included as various configurations within the spirit and scope of the broadest interpretation.

Industrial Applicability

[0053] According to the present invention, it is possible to provide a support device for installing a solar power generation facility that can improve the stability of floating on the water surface of the solar power generation facility. Therefore, it has industrial applicability.

Explanation of Reference Numerals

[0054] 1 pedestal 11 support frame 111 positioning groove 112 tubular part 113 connecting part 2 floating body 21 inner space 3 reinforcing plate 4 center of gravity adjustment means 41 hanging part 42 weight 5 platform 51 tread board 52 connecting part 6 mounting frame 61 mounting space 7 protective member 71 pipe frame 72 shielding plate 73 ventilation hole A longitudinal direction B width direction C solar power generation facility

Claims

1. A support device for installing a solar power generation facility for supporting the solar power generation facility while floating on the water surface, comprising a length direction and a width direction orthogonal to the length direction, and including a pedestal, a plurality of floating bodies, at least one center-of-gravity adjustment means, and at least one mounting frame, wherein the pedestal is configured to extend along the length direction, and a plurality of positioning grooves are formed which extend along the length direction and are arranged at intervals along the width direction, wherein the plurality of floating bodies are respectively arranged in the plurality of positioning grooves below the pedestal, and each of them surrounds an inner space and is configured to be able to float on the water surface, and a part of each floating body protrudes downward from the corresponding positioning groove, wherein the buoyancy of the floating body can be adjusted by filling a predetermined liquid or gas into the inner space of the floating body, wherein the at least one center-of-gravity adjustment means is connected to the pedestal and extends downward from the pedestal to below the plurality of floating bodies, wherein the at least one mounting frame is arranged on the pedestal and is configured to have a mounting space for mounting the solar power generation facility, a support device for installing a solar power generation facility, characterized in that.

2. The pedestal has two support frames arranged adjacent to each other in the width direction, each of the support frames comprising two tubular portions and a plurality of connecting portions, wherein the two tubular portions are arranged at intervals along the width direction, and the positioning groove is between the two tubular portions, wherein the plurality of connecting portions are arranged at intervals along the length direction and are all configured to connect the two tubular portions, a support device for installing a solar power generation facility according to claim 1, characterized in that.

3. There are a plurality of the at least one mounting frame, each of the mounting frames being provided on some of the plurality of connecting portions in the two support frames, a support device for installing a solar power generation facility according to claim 2, characterized in that.

4. There are a plurality of the at least one center-of-gravity adjustment means, each of the center-of-gravity adjustment means comprising a plurality of hanging portions and a weight, One end of each of the plurality of suspension parts is connected to two adjacent connection parts in the width direction among the plurality of connection parts of the two support frames. The weight is connected to the other end of each of the plurality of suspension parts and is located below the plurality of floating bodies. The support device for installing a solar power generation facility according to claim 2 or 3, characterized in that.

5. The support device for installing a solar power generation facility further includes a plurality of reinforcing plates. Each of the reinforcing plates is connected to two of them arranged adjacent to each other in the width direction of the plurality of floating bodies, respectively. The support device for installing a solar power generation facility according to any one of claims 1 to 3, characterized in that.

6. The support device for installing a solar power generation facility further includes two platforms. The two platforms are respectively arranged on the two support frames. The support device for installing a solar power generation facility according to claim 2 or 3, characterized in that.

7. Each of the platforms includes a plurality of tread plates and a connecting part. Each of the tread plates is arranged on the support frame so as to span the two tubular parts of the support frame, and a part thereof extends into the positioning groove. The connecting part is in the positioning groove, extends along the length direction, and connects the plurality of tread plates so that the plurality of tread plates are arranged along the length direction. The support device for installing a solar power generation facility according to claim 6, characterized in that.

8. The plurality of tread plates are divided into a plurality of groups. The plurality of tread plates in each group are between two adjacent connection parts in the length direction and are arranged along the length direction. The support device for installing a solar power generation facility according to claim 7, characterized in that.

9. The support device for installing a solar power generation facility further includes a protective member. The protective member is provided on the pedestal and includes a pipe frame and a plurality of shielding plates for blocking waves on the water surface. The pipe frame is provided on either one of both sides along the width direction of the pedestal. The plurality of shielding plates are provided on the pipe frame and are arranged adjacent to each other along the length direction. The normal direction of the plate surface of each shielding plate is parallel to the width direction. Each of the shielding plates is formed with a plurality of ventilation holes that penetrate along the width direction respectively. The support device for installing a solar power generation facility according to claim 1, characterized in that.

Citation Information

Patent Citations

  • Offshore multifunctional platform

    CN116374105A

  • Reducing floats a tubular surface of water photovoltaic body body panel

    CN206579806U

  • Water floating type photovoltaic power generation floating body support platform

    CN213974385U

  • Floating structure connected by hollow units

    KR101919134B1

  • Semi Submersible Type Buoyancy Structure for Solar Power Apparatus Constructed on the Water

    KR1020160017555A