WO2018159866A1

WO2018159866A1 - Floating photovoltaic power generation apparatus

Info

Publication number: WO2018159866A1
Application number: PCT/KR2017/002208
Authority: WO
Inventors: 이상일; 권태규
Original assignee: 오토렉스 주식회사
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2018-09-07
Also published as: CN109874406A

Abstract

Provided is a floating photovoltaic power generation apparatus comprising: a plurality of floating structures having buoyancy so as to float on the surface of water and arranged laterally to be spaced apart from each other; connecting frames installed in the floating structures to fixedly couple the plurality of floating structures in a mutually connected state; and photovoltaic power generation modules installed so as to be disposed between the floating structures. The plurality of floating structures are arranged to be spaced apart from each other in the lateral direction, the connecting frame maintains a stable connection with the floating structures by a simple connection structure, and the photovoltaic power generation modules are disposed between a pair of floating structures facing each other. Due to these features, air circulation between the photovoltaic power generation modules and the surface of water is smooth, thereby improving the cooling efficiency of the photovoltaic power generation modules and increasing the power generation efficiency by the photovoltaic power generation modules.

Description

Floating solar power plant

The present invention relates to a floating photovoltaic device for generating power using sunlight in a state of being installed to float on the surface of the water.

In general, a photovoltaic device is to produce a power by converting solar energy into electrical energy by installing a solar panel, install a support structure on the ground to install a solar panel on the support structure, or on the outer wall or roof of the building It is a power generation device that produces electricity by installing solar panels.

Such a photovoltaic device has a problem in that the initial investment cost of a power generation facility or power generation facility using environmentally friendly and non-consumable resources is large, so that the return on investment cost is long. Since the installation must be in accordance with the incoming direction, the installation cost of the solar generator is high, and the land is not available for other uses, such as agriculture, there is a problem of low economic efficiency, high maintenance and repair costs, and low economic efficiency. In addition, since a large space is required to construct a large-scale solar power plant on the ground, there is a problem that it is difficult to construct a power plant due to complaints of environmental groups and neighboring residents due to a lot of natural damage.

In order to solve the above problems, a lot of floating photovoltaic devices are installed in recent years by installing a photovoltaic module on a floating structure floating on the water surface.

However, the conventional floating photovoltaic device is installed so that the photovoltaic module is arranged on the upper part of the floating structure upper plate, and thus the air circulation between the photovoltaic module and the floating structure upper plate, in particular the circulation of wind flowing over the water surface. As this is inhibited, stable cooling of the photovoltaic module becomes difficult, and there is a problem in that power generation efficiency of the photovoltaic module is lowered.

Such a conventional floating photovoltaic device is presented in Korean Patent Publication No. 2011-0004967 (2011.01.17).

The present invention, while the air circulation between the solar power module and the water surface is smoothly installed in the state installed to float on the surface of the floating solar to increase the cooling efficiency of the solar power module to increase the power generation efficiency of the solar power module An object is to provide a photovoltaic device.

In addition, an object of the present invention is to provide a floating photovoltaic device capable of stably maintaining durability and rigidity of a floating structure against horizontal external force, thereby allowing a stable power generation while floating on the water surface.

The present invention has a buoyancy to float on the water surface, a plurality of floating structures arranged side by side in a horizontally spaced apart state, installed in the floating structure, to allow a plurality of the floating structure is fixedly coupled to the interconnected state It provides a floating photovoltaic device including a connection frame, a photovoltaic module installed to be disposed between the floating structure.

In addition, the floating structure is connected between the plurality of base buoyancy body, the base buoyancy body arranged side by side in a mutually spaced apart state in the longitudinal direction, the upper surface for fixing and supporting one end of the photovoltaic module in a seated state It may include a module fixing body formed with a connection support.

In addition, a vertical installation groove is formed in the vertical direction on the upper surface of the floating structure, a horizontal installation groove is formed in the horizontal direction so as to be disposed perpendicular to the vertical installation groove on the upper surface of the floating structure, the connecting frame is the floating It may include a plurality of vertical bars inserted into the vertical installation groove of the structure, a plurality of horizontal bars inserted into the horizontal installation groove to connect the floating structure.

In addition, one side of the floating structure is formed with a pin fastening groove connected to the horizontal mounting groove or the vertical mounting groove, the screw is coupled to the pin fastening groove, the end screwed to the pin fastening groove is the horizontal mounting groove The horizontal bar or the vertical bar may be further provided with a fixing pin for fixing the horizontal bar or the vertical bar to the floating structure while pressing the vertical bar inserted into the vertical bar or the vertical installation groove.

In addition, one side of the horizontal bar located between the floating structure is further provided with a coupling bracket having an additional fastening groove is formed, is installed through the additional fastening groove to connect the horizontal bar in a state disposed perpendicular to the horizontal bar. An additional installation bar may be provided.

In addition, both ends in the longitudinal direction of the horizontal bar and the both ends in the longitudinal direction of the vertical bar may be further provided with a joint member for connecting the floating structure of the other floating solar power generator.

The longitudinal ends of the horizontal bars and the longitudinal ends of the vertical bars each have a tubular shape having a space therein, and the joint member corresponds to the horizontal bar ends or the vertical bar ends at both ends in the longitudinal direction. A soft connection cover part having an insertion end formed to be locked in an inserted state, a connection holding part made of metal inserted into the connection cover part, and the horizontal bar end or the vertical bar end inserted into the connection end of the connection cover part; It may include a fastening member to be coupled to the connection cover portion.

Floating photovoltaic device according to the present invention, a plurality of floating structures are arranged to be spaced apart from each other in the horizontal direction, the connection frame maintains a stable coupling of the floating structure in a simple connection structure, the photovoltaic module is spaced from each other It is installed to be arranged between a pair of floating structures facing each other, the air circulation between the solar power module and the water surface is smooth, the cooling efficiency of the solar power module is improved, the power generation efficiency of the solar power module Keep it stable.

1 is a perspective view of a floating photovoltaic device according to an embodiment of the present invention.

2 is a plan view of FIG. 1.

3 is a side view of FIG. 1.

4 is a front view of FIG. 1.

5 is a perspective view of the module fixture shown in FIG.

6 is a partial side view of a floating solar cell apparatus according to another embodiment of the present invention.

7 is a partial side view of a floating solar cell apparatus according to another embodiment of the present invention.

8 is a cross-sectional view of an installation state of a joint member installed at the end of the connecting frame shown in FIG.

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

1 is a perspective view of a floating photovoltaic device according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 is a side view of Figure 1, Figure 4 is a front view of Figure 1. 1 to 4, the floating photovoltaic device of one embodiment includes a floating structure 100, a connection frame 200, and a photovoltaic module 300.

The floating structure 100 is a structure having buoyancy to float on the water surface, and will be supported so that the photovoltaic module 300 to be described later is placed in the floating state on the water surface. Such a floating structure 100 preferably has a rectangular planar shape, but may be formed in various shapes according to the arrangement of the photovoltaic module 300 installed above the floating structure on the water surface. Of course. Here, the floating structure 100 is provided with a plurality to be arranged side by side spaced apart from each other in the horizontal direction, the photovoltaic module 300 to be described later is disposed between the adjacent floating structure (100) do. The floating structure 100 includes a base buoyancy body 110 and a module fixing body 120.

The base buoyancy body 110 to increase the buoyancy to the module fixing body 120 to be described later, to maintain a stable floating state in a state in which the photovoltaic module 300 is connected to the module fixing body 120 installed . The base buoyancy body 110 is arranged in a plurality of side by side spaced apart from each other in the longitudinal direction. That is, the base buoyancy body 110 is disposed so as to be coupled to each side of the module fixing body 120, respectively. Here, the base buoyancy body 110 has a rectangular planar shape, the vertical installation groove 130 is formed on the upper surface of the base buoyancy body 110 to be located in a virtual vertical straight line. That is, the vertical installation groove 130 is formed in the vertical direction in the center of the upper surface of the base buoyancy body 110, so that the vertical bar 210 of the connection frame 200 to be described later to be inserted, the base The buoyancy body 110 and the module fixing body 120 to be described later to be maintained in a stable state of mutual coupling.

The module fixture 120 supports the photovoltaic module 300 to be described later in a connected state. The module fixing body 120 is disposed between the base buoyancy body 110, and both sides of the module fixing body 120 are connected to the base buoyancy body 110 facing each other. And, both sides of the upper surface of the module fixing body 120 may be provided with a connecting support 121 for supporting one end or the other end of the photovoltaic module 300 in a seated state, respectively. At this time, by forming a height of the connection support 121 is installed on one side of the module fixing body 120 and the height of the connection support 121 is installed on the other side of the module fixing body 120, disposed on one side One end of the photovoltaic module 300 is coupled to the connection support 121 of the module fixture 120 in a seated state, and the solar light is connected to the connection support 121 of the module fixture 120 disposed on the other side. When the other end of the power generation module 300 is coupled to a seated state, the photovoltaic power generation module 300 is inclined and the incident rate of solar light is increased.

The module fixing body 120 has a rectangular planar shape, and a vertical installation groove 130 is formed on an upper surface of the module fixing body 120 so as to be positioned on a virtual vertical straight line. That is, the vertical installation groove 130 formed in the module fixing body 120 is in the center of the upper surface of the module fixing body 120 to be connected to the vertical installation groove 130 formed in the base buoyancy body 110 described above. It is formed in the longitudinal direction, the coupling is made in the connection state with the base buoyancy body 110 disposed adjacent by the vertical bar 210 of the connection frame 200 to be described later. In addition, a horizontal installation groove 140 is formed on the upper surface of the module fixing body 120 so as to be positioned in a virtual horizontal straight line. As such, the horizontal installation grooves 140 are formed in the horizontal direction so as to be disposed perpendicular to the vertical installation grooves 130 on the upper surface of the module fixing body 120, each of the floating structures spaced apart to face each other The module fixing body 120 of 100 to be coupled through the horizontal bar 220 of the connection frame 200 to be described later. That is, the horizontal installation groove 140 is inserted into the horizontal bar 220 of the connecting frame 200.

Referring to FIG. 5, the vertical installation groove 130 is formed deeper than the horizontal installation groove 140, which will be described later in a portion where the vertical installation groove 130 and the horizontal installation groove 140 cross each other. In the state in which the vertical bar 210 and the horizontal bar 220 of the connection frame 200 are inserted and installed, respectively, it is possible to prevent the interference from occurring.

In addition, the vertical installation grooves 130 and the horizontal installation grooves 140 are inserted into the vertical bars 210 and the horizontal bars 220, respectively, and then fixed

fixing blocks

131 and 141 to prevent them from being separated. Insert can be installed. The end portions of the

fixing blocks

131 and 141 are formed with locking

end portions

131a and 141a. When the

fixing blocks

131 and 141 are inserted into the vertical installation groove 130 and the horizontal installation groove 140, The

locking end portions

131a and 141a are inserted and locked to correspond to the

respective locking grooves

130a and 140a formed in the vertical installation grooves 130 and the horizontal installation grooves 140, and thus the vertical bars of the connection frame 200 to be described later. 210 and the horizontal bar 220 is prevented from being separated in the state inserted into the vertical installation groove 130 and the horizontal installation groove 140.

In addition, referring to Figure 6, one side of the floating structure 100, more specifically, the side of the module fixing body 120, the pin connected to the horizontal installation groove 140 or the vertical installation groove 130 The fastening groove 150 may be formed. The fixing pin 151 is screwed to the pin fastening groove 150. Therefore, the inserted end of the fixing pin 151 toward the horizontal installation groove 140 or the vertical installation groove 130 in the state that the fixing pin 151 is inserted into the pin fastening groove 150 is While pressing the outside of the horizontal bar 220 or the vertical bar 210 is inserted into the horizontal installation groove 140 or the vertical installation groove 130, the horizontal installation groove 140 of the module fixing body 120 In the horizontal bar 220 is inserted into the installed state or the vertical bar 210 is inserted into the vertical installation groove 130 to maintain a stable fixed coupling state.

The connection frame 200 is to be fixedly coupled to the floating structure 100 is disposed in a mutually spaced apart state in the horizontal direction in an interconnected state. The connection frame 200 is installed to connect the floating structure 100. That is, the connection frame 200 is fixed to the base buoyancy body 110 and the module fixing body 120 constituting the floating structure 100 in a connected state with respect to the longitudinal direction and in the horizontal direction The module fixing body 120 of each of the floating structure 100 disposed to face each other in a state of mutual separation to be fixedly coupled in an interconnected state. The connection frame 200 includes a vertical bar 210 and a horizontal bar 220.

The vertical bar 210 is a bar-shaped member that allows the base buoyancy body 110 and the module fixing body 120 constituting the floating structure 100 to be fixedly coupled in a vertically coupled state. This, the vertical bar 210 is inserted and coupled to the vertical installation groove 130 of the floating structure (100). That is, the vertical bar 210 is inserted into the vertical installation groove 130 formed in the base buoyancy body 110 and the module fixing body 120 of the floating structure 100, the base buoyancy body 110 And the module fixing body 120 are fixedly coupled in a state in which they are arranged in a straight line in the vertical direction.

The horizontal bar 220 is a bar-shaped member that allows the floating structure 100 spaced apart from each other in the horizontal direction to be fixedly coupled in a connected state. The horizontal bar 220 is inserted and coupled to the horizontal installation groove 140 formed in the module fixing body 120 of the floating structure (100). That is, the horizontal bar 220 is inserted into the horizontal installation groove 140 to connect the module fixing body 120 of each of the floating structure 100, a plurality of the floating structure 100 in the horizontal direction The floating structure 100 adjacent to each other to have a structure arranged side by side in a spaced apart state to be fixedly coupled in a connected state.

Referring to FIG. 6, one side of the horizontal bar 220, more specifically, between the module fixture 120 of the floating structure 100 and the module fixture 120 of the floating structure 100 adjacent thereto. The connecting brackets 230 may be provided on the horizontal bars 220, respectively. In this connection bracket 230, an additional fastening groove 231 penetrating in the vertical direction perpendicular to the longitudinal direction of the horizontal bar 220 may be formed. In addition, an additional installation bar 240 may be installed in the additional fastening groove 231 in a penetrating state so as to connect the horizontal bar 220 in a state disposed perpendicularly to the horizontal bar 220. That is, the additional installation bar 240 is the horizontal bar 220 respectively located between the module fixing body 120 of the floating structure 100 and the module fixing body 120 of the floating structure 100 adjacent to each other. By connecting the, it is to serve to keep the overall bonded state of the floating structure 100 more stable.

In addition, referring to FIG. 7, one side of the horizontal bar 220, more specifically, the module fixing body 120 of the other floating structure 100 adjacent to the module fixing body 120 of the floating structure 100. On the horizontal bar 220 respectively positioned between the) may be provided with a pair of connecting support 241 extending vertically upward in a state where they are spaced apart from each other. When the connection support 241 is formed on the horizontal bar 220, the solar cell module 300 is not installed in the seating state of the connection support 121 of the module fixing body 120 described above. Instead, the photovoltaic module 300 may be coupled to and installed in a connection support 241 formed on the horizontal bar 220. As such, the pair of the connection support 241 is formed to be different height, so that the photovoltaic module 300 to be described later to be installed in an inclined state between the module fixing body 120 of the floating structure (100). can do.

Here, both longitudinal ends of the vertical bar 210 and both longitudinal ends of the horizontal bar 220 of the connection frame 200 may be formed to have a tubular shape having a space therein. Referring to FIG. 8, the joint member 250 may be coupled to the vertical bars 210 in the longitudinal direction both ends of the connection frame 200 and the horizontal bars 220 in the longitudinal direction both ends. This, the joint member 250 is to be coupled to the different floating photovoltaic device. That is, the joint member 250 allows the floating structures 100 of the different floating solar power generators to be connected to each other. Here, the joint member 250 includes a connection cover part 251, a connection holding part 253, and a fastening member 254.

The connection cover part 251 is a part connected to the end of the vertical bar 210 or the horizontal bar 220 of the connection frame 200. The connection cover part 251 has a tubular structure to surround the connection holding part 253 which will be described later, and the vertical bar 210 ends or the horizontal bars at both ends in the longitudinal direction of the connection cover part 251. An insertion end 242 is formed to correspond to the end of the insertion hole 220. The connection cover part 251 is formed of a soft rubber material or synthetic resin material while preventing the corrosion of the connection holding part 253 while wrapping the connection holding part 253 which will be described later. In the state in which the floating structure 100 of the solar cell apparatus is interconnected, the movement of the floating structure 100 is absorbed.

The connection holding part 253 maintains the strength of the connection cover part 251 so as to maintain the floating structures 100 of the different floating solar power generation apparatuses connected by the connection cover part 251 in a stable connection state. It is a member to increase. That is, the connection holding part 253 is inserted into the connection cover part 251. Here, the connection holding portion 253 is preferably formed of a metal material so as to reinforce the strength of the connection cover portion 251 in the state installed inside the connection cover portion 251, but not limited to this connection strength Of course, it can be formed of a material that can reinforce.

The fastening member 254 has a longitudinal end portion of the vertical bar 210 or a longitudinal end portion of the horizontal bar 220 which is inserted outside the insertion end 252 of the connection cover portion 251 to the connection cover portion. 251 and the connection holding unit 253 to be fixed. The fastening member 254 may include a bolt 255 and a nut 256. In this case, an end of the bolt 255 penetrates the longitudinal end of the vertical bar 210 or the longitudinal end of the horizontal bar 220 and the connection cover part 251 and the connection holding part 253. The head portion of the bolt 255 in the state is fastened so as to be engaged to the longitudinal end outer surface of the longitudinal bar 210 or the longitudinal end outer surface of the horizontal bar 220. In addition, the nut 256 is fastened and installed at the end of the bolt 255, thereby preventing the bolt 255 from being separated, thereby maintaining a stable coupling state.

The photovoltaic module 300 is a generator for converting solar energy into electrical energy. Such, the photovoltaic module 300 is installed to be disposed between the module fixing body 120 of the floating structure 100 facing each other, the air circulation between the photovoltaic module 300 and the water surface As a result, the cooling of the photovoltaic module 300 is performed stably while the power generation efficiency by the photovoltaic module 300 is made stable. That is, one end of the photovoltaic module 300 is connected to the support 121 formed in the module fixing body 120 of the floating structure 100 is located on one side of the pair of floating structures (100) facing each other It is fixedly seated on the seat. The other end of the photovoltaic module 300 is fixedly coupled to the connection support 121 formed on the module fixing body 120 of the floating structure 100 located at the other side. Here, referring to FIG. 7, when the photovoltaic module 300 is connected to the horizontal bar 220 as described above, the support 241 is formed, the horizontal bar is disposed between the floating structure 100. Of course, it can be fixedly coupled to the seating state by the connection support 241 of (220).

As such, the floating photovoltaic device is arranged to be spaced apart from each other in the horizontal direction, a plurality of the floating structure 100, the connection frame 200 is a stable coupling of the floating structure 100 in a simple connection structure The photovoltaic module 300 is installed to be disposed between the pair of floating structures 100 facing each other in a spaced apart state, and between the photovoltaic module 300 and the water surface. As the circulation is smooth, the cooling efficiency of the photovoltaic module 300 is improved, thereby increasing the power generation efficiency by the photovoltaic module 300.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims

A plurality of floating structures having buoyancy to float on the water surface and arranged side by side in a horizontally spaced apart state;

A connection frame installed at the floating structure and configured to fix the plurality of the floating structures in an interconnected state; And

Floating photovoltaic device comprising a photovoltaic module installed to be disposed between the floating structure.
The method according to claim 1,

The floating structure is,

A plurality of base buoyancy bodies arranged side by side at a distance from each other in the longitudinal direction,

Floating photovoltaic device is installed between the base buoyancy body, the upper surface includes a module fixing body formed with a connection support fixed to support one end of the photovoltaic module in a seated state.
The method according to claim 1,

The upper surface of the floating structure is formed with a vertical installation groove in the longitudinal direction,

On the upper surface of the floating structure is formed a horizontal installation groove in the horizontal direction so as to be perpendicular to the vertical installation groove,

The connecting frame,

A plurality of vertical bars inserted into and coupled to the vertical installation grooves of the floating structure;

Floating photovoltaic device comprising a plurality of horizontal bars that are inserted into the horizontal installation groove to connect the floating structure.
The method according to claim 3,

One side of the floating structure is formed with a pin fastening groove connected to the horizontal installation groove or the vertical installation groove,

Screwed to the pin fastening groove, the end screwed to the pin fastening groove is the horizontal bar or the vertical bar is pressed while pressing the horizontal bar inserted in the horizontal installation groove or the vertical bar inserted in the vertical installation groove Floating photovoltaic device further comprising a fixing pin to be fixedly coupled to the floating structure.
The method according to claim 3,

One side of the horizontal bar located between the floating structure is further provided with a coupling bracket formed with an additional fastening groove,

Floating photovoltaic device having an additional installation bar that is installed through the additional fastening groove to connect the horizontal bar in a state disposed perpendicular to the horizontal bar.
The method according to claim 3,

Floating photovoltaic device further comprises a joint member coupled to the both ends of the horizontal bar in the longitudinal direction of the vertical bar and coupled to the floating structure of the other floating photovoltaic device.
The method according to claim 6,

Longitudinal both ends of the horizontal bar and both longitudinal ends of the vertical bar, each having a tubular shape having a space inside,

The joint member,

A soft connection cover portion having an insertion end formed at both ends in the longitudinal direction so as to be engaged with the horizontal bar end or the vertical bar end in a corresponding insertion state;

A connection holding part made of a metal material inserted into the connection cover part, and

Floating photovoltaic device comprising a fastening member for coupling the horizontal bar end or the vertical bar end inserted into the connection cover portion and the connection cover portion.