KR20120125105A - Solar power plant on water - Google Patents
Solar power plant on water Download PDFInfo
- Publication number
- KR20120125105A KR20120125105A KR1020110043192A KR20110043192A KR20120125105A KR 20120125105 A KR20120125105 A KR 20120125105A KR 1020110043192 A KR1020110043192 A KR 1020110043192A KR 20110043192 A KR20110043192 A KR 20110043192A KR 20120125105 A KR20120125105 A KR 20120125105A
- Authority
- KR
- South Korea
- Prior art keywords
- water
- floating structure
- photovoltaic device
- floating
- center
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000007667 floating Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 230000005484 gravity Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011133 lead Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229940063583 high-density polyethylene Drugs 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
In a water-based photovoltaic device comprising a solar module for receiving sunlight and converting it into electricity and a floating structure for installing the solar module in the water, the lower portion of the floating structure is submerged in water and the remaining upper portion floats on the water Semi-submersible type, which consists of a plurality of hollow pipes vertically formed on the surface of the water, and is composed of connecting support members for mutually supporting the plurality of pipes. It is characterized by being designed low.
Description
The present invention relates to a water-based photovoltaic device, and more particularly, to a floating structure for water-based photovoltaic power generation that is adapted not to be damaged by climate change, such as waves, instantaneous gusts and restored to its original position.
Recently, due to the implementation of environmental regulations such as the declaration of eco-friendly policies such as GHG reduction of countries around the world, and the global oil shock and the nuclear accident in Japan, the necessity of renewable energy from the existing energy supply system that depends on fossil fuel and nuclear power is needed. The emphasis on solar power is increasing.
Photovoltaic power generation requires a certain area of installation site that can receive sunlight, and it is easy to secure an installation site due to increased regulations due to indiscriminate forest damage, except when using existing buildings and other facilities. Alternatively, water-based photovoltaic power plants are alternatively installed in reservoirs or dam surfaces. The water-based solar power plant not only saves the site purchase cost because it uses idle water, but also has an excellent cooling effect compared to the above-mentioned photovoltaic facilities.
Conventional water photovoltaic power station uses a method of connecting the ponton of HDPE (High Density Poly Ethylene) series to the steel member and mounting the solar module as shown in Figure 1 (Thompson Technologies Inc .). However, this method shows relatively stable performance when the wind is weak or the wave is weak, but the wave generated when the typhoon blows (over 50 cm) can be damaged by covering the object, and the momentary gust accompanied by the typhoon ( When wind speeds of 10m / sec or more are blown, a large area of modules are bundled and connected, and the steel member connecting the pontone to the phonton may be broken due to the stress concentration caused by the wind pressure.
If the expensive installation structure is damaged, the repair cost is equivalent to the installation cost. Therefore, the floating structure needs to be distributed to reduce the wind pressure and adapt to the instantaneous climate change.
The present invention has been made in accordance with the necessity as described above, the center of gravity is designed to be lower than the buoyancy center to maintain a stable posture to facilitate condensing below the critical wind speed, and to comply with the wind above the critical wind speed stress concentration on the floating structure By preventing the structure to provide a floating structure for mounting the solar module does not break.
In addition, by using a hollow pipe perpendicular to the water surface to provide a floating structure for mounting a solar module equipped with a defense means against the waves to minimize the water surface by reducing the contact area with water.
The configuration of the present invention for solving the above problems, in the water-based photovoltaic device comprising a photovoltaic module for receiving sunlight and converting it into electricity and a floating structure that can be installed in the water module, floating The lower part of the structure is submerged, submerged in water, and the other upper part is a submersible type. A plurality of hollow pipes are formed perpendicularly to the water surface, and are connected to each other to support the plurality of pipes. The floating structure is designed to have a lower center of gravity than the center of buoyancy and is inclined to face the sun according to the altitude of the sun.
In one embodiment of the present invention, the floating structure is attached to the fin structure parallel to the water surface at the bottom of the pipe submerged in the water, the center of gravity is one of the liquid, lead, iron, cement in the bottom of the hollow pipe or It is controlled by using a selected combination, characterized in that for adjusting the weight of a portion of the pipe so that the solar module of the floating structure inclined to one side to face the sun according to the altitude of the sun.
In another embodiment of the present invention, the floating structure is a triangular structure using three pipes or a quadrilateral structure using four to five, and the floating structures are interconnected using a connecting line and allowed to use pulleys and weights. It is characterized by determining the critical wind speed.
Floating structure of the photovoltaic device according to the present invention is designed to keep the center of gravity lower than the buoyancy center to maintain a stable posture to facilitate condensing at or below the critical wind speed, preventing the structure from being damaged by preventing stress concentration on the floating structure above the critical wind speed. As a result, stable power is obtained and maintenance costs are reduced.
In addition, by using a hollow pipe structure perpendicular to the water surface, the water surface is reduced, it is possible to provide a stable photovoltaic device with less shaking than the conventional phonton method even in high waves.
1 is a perspective view of a water-based photovoltaic device according to the prior art.
Figure 2a is a perspective view of the floating structure of the photovoltaic device according to the present invention, Figure 2b is a perspective view with a solar module attached.
Figure 3 is an embodiment in which the solar cell apparatus is installed in the water phase using the floating structure according to the present invention.
Figure 4 is an embodiment of a photovoltaic device using a floating structure according to the present invention.
5 is another embodiment of a photovoltaic device using a floating structure according to the present invention.
Hereinafter, a floating structure for a water photovoltaic device according to the present invention will be described with reference to the drawings. The illustrated drawings are enlarged or reduced in order to clarify the contents of the present invention, and the same reference numerals are used for components having the same function, and non-essential components are omitted and should not be construed as limited to the drawings.
Figure 2 is a perspective view of the floating structure of the photovoltaic device according to the present invention, the lower portion of the
The shaking of the floating body due to the fluctuation of the fluid such as wind or waves can be divided into pitch, yaw, roll. Pitch and yaw are moved in the vertical direction in the flow direction when viewed in the flow direction (xy plane) of the fluid. The roll is prevented by minimizing the repair surface.
Conventional ponton method uses a low specific gravity plastic material to obtain buoyancy, so the contact area with water is large. If the contact area with water is large, buoyancy proportional to gravity and area can be obtained, but rolling may occur due to the flow of fluid such as waves.
In the present invention, but there is buoyancy as a defense against the waves to solve this problem, to install a buoyant structure perpendicular to the water surface to reduce the contact area with water. Since the
In the floating structure of the present invention, the anti-shake at or below the critical wind speed makes the center of gravity smaller than the buoyancy center, maintains equilibrium using a pulley and weight, and mounts a pin structure to prevent pitch and yaw motion.
The reason why the center of gravity is lower than the center of buoyancy is because the floating structure oscillates due to wind or waves, but because of the low center of gravity, the floating structure can be restored immediately so that it can take a stable posture. The method of adjusting the center of gravity can be further inserted in the lower part of the pipe using liquid, lead, iron, cement, or a combination thereof. In addition, in regions located in the northern hemisphere, such as Korea, the sun's altitude is low, so the incidence plane of the photovoltaic module should be tilted to face the sun. Can be adjusted by inserting or inserting.
In the present invention, a fin (130) structure is used as an example for preventing rotational movements such as pitch and yaw.
3 shows the connection of the floating structures according to the present invention, the unit floating structures equipped with the
Below the critical wind speed, the tension of the connecting
4 and 5 is a floating photovoltaic device showing another embodiment of the present invention, in FIG. 2 is a floating structure of a quadrilateral structure using four hollow pipes, Figure 4 is a triangular structure using three hollow pipes 5 shows a floating structure of FIG. 5, but shows a water-based photovoltaic device using a floating structure modified in a circular shape using four hollow pipes, and the present invention can be modified in various forms.
100: floating structure 101: water surface
110: hollow pipe 120: connection support member
130: fin structure 140: solar module
150: connecting line 160: pulley
170: weight 180: anchor
Claims (5)
The floating structure is a semi-submersible type in which the lower part is submerged in water and the other upper part is floated on water. Consists of a plurality of connecting support members,
The floating structure is a photovoltaic device floating structure, characterized in that the center of gravity is designed lower than the buoyancy center
The floating structure is a photovoltaic device floating structure, characterized in that the fin structure is mounted parallel to the water surface at the bottom of the pipe to be submerged in order to prevent shaking
The floating structures are connected to each other using a connecting line and the suspended wind power structure, characterized in that for determining the critical wind speed allowed using a pulley and weight.
The center of gravity is a floating structure of a photovoltaic device, characterized in that the lower portion of the hollow pipe, liquid, lead, iron, cement or put into a selected combination is adjusted.
Photovoltaic device floating structure characterized in that for adjusting the weight of some of the plurality of pipes inclined to one side so that the solar module of the floating structure toward the sun according to the altitude of the sun
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110043192A KR101215402B1 (en) | 2011-05-06 | 2011-05-06 | Solar power plant on water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020110043192A KR101215402B1 (en) | 2011-05-06 | 2011-05-06 | Solar power plant on water |
Publications (2)
Publication Number | Publication Date |
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KR20120125105A true KR20120125105A (en) | 2012-11-14 |
KR101215402B1 KR101215402B1 (en) | 2012-12-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020110043192A KR101215402B1 (en) | 2011-05-06 | 2011-05-06 | Solar power plant on water |
Country Status (1)
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KR (1) | KR101215402B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104283492A (en) * | 2014-10-27 | 2015-01-14 | 无锡同春新能源科技有限公司 | Photovoltaic power station built by photovoltaic power generation components and composite buoyancy materials on river |
CN105129040A (en) * | 2015-09-02 | 2015-12-09 | 长江勘测规划设计研究有限责任公司 | Variable-dip-angle whole-water-area water surface photovoltaic power station modularized double-hull-shaped floating device |
KR102085864B1 (en) * | 2019-09-16 | 2020-03-06 | 주식회사 오션스페이스 | Offshore floating structure for generating solar photovoltaic energy |
CN111030584A (en) * | 2019-12-30 | 2020-04-17 | 界首市谷峰光伏科技有限公司 | Array bracket for adjusting orientation of photovoltaic module |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101739065B1 (en) | 2015-04-13 | 2017-05-23 | 프로텍코리아 주식회사 | Floater for the solar electric power plant constructed on the water |
CN105099342B (en) * | 2015-09-02 | 2016-12-14 | 长江勘测规划设计研究有限责任公司 | Offshore type water surface floating photovoltaic plant monoblock type catamaran hull floating platform device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009202697A (en) | 2008-02-27 | 2009-09-10 | Kyocera Corp | Photovoltaic power generation device |
KR100944073B1 (en) * | 2009-07-13 | 2010-02-24 | 김승섭 | Solar light power generating device |
KR101022333B1 (en) | 2010-06-08 | 2011-03-21 | 이승철 | Amphibious photovoltaic power generation apparatus |
-
2011
- 2011-05-06 KR KR1020110043192A patent/KR101215402B1/en not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104283492A (en) * | 2014-10-27 | 2015-01-14 | 无锡同春新能源科技有限公司 | Photovoltaic power station built by photovoltaic power generation components and composite buoyancy materials on river |
CN105129040A (en) * | 2015-09-02 | 2015-12-09 | 长江勘测规划设计研究有限责任公司 | Variable-dip-angle whole-water-area water surface photovoltaic power station modularized double-hull-shaped floating device |
CN105129040B (en) * | 2015-09-02 | 2016-08-17 | 长江勘测规划设计研究有限责任公司 | Become full waters, inclination angle water surface photovoltaic power station modularization catamaran hull type floatation type device |
KR102085864B1 (en) * | 2019-09-16 | 2020-03-06 | 주식회사 오션스페이스 | Offshore floating structure for generating solar photovoltaic energy |
CN111030584A (en) * | 2019-12-30 | 2020-04-17 | 界首市谷峰光伏科技有限公司 | Array bracket for adjusting orientation of photovoltaic module |
Also Published As
Publication number | Publication date |
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KR101215402B1 (en) | 2012-12-26 |
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