CN113595483A - Solar tracking method for waterborne drifting photovoltaic panel - Google Patents
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- 238000005286 illumination Methods 0.000 claims abstract description 63
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- 230000002194 synthesizing effect Effects 0.000 claims abstract description 4
- 238000004364 calculation method Methods 0.000 claims description 3
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- 238000010248 power generation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 238000007667 floating Methods 0.000 description 14
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- 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
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2209/00—Energy supply or activating means
- B63B2209/18—Energy supply or activating means solar energy
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- 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
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Abstract
The invention discloses a solar tracking method of an overwater drifting photovoltaic panel, which is technically characterized by comprising the following steps of: the method comprises the following steps: s1, arranging an air bag 1, an air bag 2, an air bag 3 and an air bag 4 for controlling the angle of the photovoltaic panel at the four corners of the bottom of the photovoltaic panel of the overwater photovoltaic power station, and respectively controlling the air bag 1, the air bag 2, the air bag 3 and the air bag 4 to be inflated by air pumps; s2, obtaining the relation between the height difference of the air bag and the inflation time; s3, continuously adjusting the angle position of the photovoltaic panel by decomposing the light source, and finding out the position of the maximum illumination intensity of the sub-plane during adjustment; and S4, synthesizing the two planes to obtain the position with the maximum illumination intensity. The solar tracking method of the water drifting photovoltaic panel is low in cost, evaporation is reduced, water resources are saved, cleaning is convenient, and the direction can be freely regulated and controlled. The solar energy can be obtained in the maximum range, and the maximum power generation efficiency is achieved.
Description
Technical Field
The invention relates to the field of electric power, in particular to a solar tracking method for an overwater drifting photovoltaic panel.
Background
With the rapid development of the global photovoltaic industry, the photovoltaic industry has wider and wider application fields, and the photovoltaic on water is one of the photovoltaic industry. Solar energy is inexhaustible as a renewable energy source, is widely applied to the production and life of people as the main force of clean energy power generation in China, and has an important position in a long-term energy strategy.
The photovoltaic power station on water is a photovoltaic power station established on water surfaces such as ponds, small and medium-sized natural lakes, reservoirs, lakes formed in coal mining subsidence areas and the like. The existing overwater photovoltaic power station has the problems of single direction and incapability of freely moving.
Zhang mu cata and Wang Yi Cheng in the development status and market prospect analysis of the photovoltaic industry on water in the world indicate that the photovoltaic power station on water is mainly divided into two application forms according to the support mode of the photovoltaic module: the pile foundation is fixed and the water surface floats, and the selection of the specific form can be generally preliminarily determined by the water depth. The shallow water area can adopt a pile foundation fixing mode; the deep water area can adopt a water surface floating mode. The water surface floating mode can be divided into a floating pipe and a floating barrel. (Zhang mu Ziwang art Cheng, development status and market prospect analysis of photovoltaic industry on water in the world 2020.7.28 publication: 1003-.
The water surface floating mode provided by Sunjie in the application technology and solution of the overwater photovoltaic power station can be divided into two forms of a floating pipe and a floating barrel, the pile foundation fixing mode mainly adopts 'fixed piling + fixed support', the pipe pile with 'fixed piling + tracking support' as assistance is driven into the water bottom, a photovoltaic support system is manufactured at the end head, and the pile length can be determined according to geological conditions and water depth. The water surface floating power station combines the steel structure base and the support through the floating pipe or the floating barrel, and fixes and floats the photovoltaic module on the water surface. (Sun Jie applied technology and solution of photovoltaic power station on water, published under No. 2017.2.15: 2017, (02), 48-51).
The waterborne photovoltaic power station written by cai weidong and pengkon in technical research on large waterborne photovoltaic power stations can be divided into two types, namely a pile foundation (pile foundation) fixed power station and a water surface floating power station according to the foundation form. The pile foundation fixed power station is similar to a traditional photovoltaic support, fixes the pile foundation underwater, and is suitable for shallow places in water areas. The surface of water floats the power station and sets up the floating module on the surface of water, with photovoltaic module snap-on in the module, or be fixed in the support with photovoltaic module on, fix the support on the module again, be fixed in the body bank or submarine, be applicable to the deeper place in waters. Large-scale photovoltaic power plant on water mainly adopts surface of water showy power plant. (Chuawiedongpokang technical exploration for large-scale photovoltaic power plants on water, published under No. 2019,3(18),30-32) in No. 2019.9.25.
According to the periodicals, the overwater photovoltaic power station is mainly divided into overwater floating and pile foundation fixing, the existing column overwater photovoltaic production cost is high, the construction difficulty is high, and the overwater floating device can not flexibly adjust the direction. The existing overwater photovoltaic can not be regulated and controlled according to different illumination intensities, so that part of solar energy resources are wasted. There is currently no invention that applies airbags to the conditioning of photovoltaic panels.
Disclosure of Invention
In view of the problems mentioned in the background art, the present invention aims to provide a solar tracking method for an above-water drifting photovoltaic panel, so as to solve the problems mentioned in the background art.
The technical purpose of the invention is realized by the following technical scheme:
a solar tracking method for an overwater drifting photovoltaic panel comprises the following steps:
s1, arranging an air bag 1, an air bag 2, an air bag 3 and an air bag 4 for controlling the angle of the photovoltaic panel at the four corners of the bottom of the photovoltaic panel of the overwater photovoltaic power station, and respectively controlling the air bag 1, the air bag 2, the air bag 3 and the air bag 4 to be inflated by air pumps;
s2, obtaining the relation between the height difference of the air bag and the inflation time;
s3, continuously adjusting the angle position of the photovoltaic panel by decomposing the light source, and finding out the position of the maximum illumination intensity of the sub-plane during adjustment;
and S4, synthesizing the two planes to obtain the position with the maximum illumination intensity.
Preferably, when the relationship between the height difference of the air bag and the inflation time is obtained in S2, a hypothetical simulation calculation is performed, and assuming that the air bag is a cylinder and the water tank is a rectangular parallelepiped, the following relationship is obtained by one air bag:
setting the height d of the air bag exposed to the water surface before inflation1Height d of the air bag exposed to the water surface after inflation2The inflating flow of the air pump is S cm3/min, the radius of the air bag is rcm, and the radius of the air bag before inflation is r1cm, radius r after air bag inflation2cm; the following can be obtained:
πr2(d-d1)-πr2(d-d2)＝S·t；
The relationship between the air bag rising height difference delta d and the inflation time t is as follows:
preferably, in S3, the lifting planes are first set in the cartesian coordinate system, including 1, 2 lifting planes, 3, 4 lifting planes, 1, 4 lifting planes and 2And 3, setting the direction illumination intensity of the lifting planes 1 and 2 and the lifting planes 3 and 4 as EaAt an included angle of beta1Setting the direction illumination intensity of 1, 4 lifting planes and 2, 3 lifting planes as EbAt an included angle of beta2(ii) a Decomposing a light source, splitting the light source into a horizontal axis and a vertical axis, namely an x axis and a y axis, and establishing a three-dimensional coordinate x axis, a y axis and a z axis; the position of the maximum illumination intensity of the light source on the xoz surface is found out through angle adjustment, then the air bag is kept still, and the position of the maximum illumination intensity of the light source on the yoz surface is found out through angle adjustment, wherein the position is the position of the maximum illumination intensity.
Preferably, when the position of the maximum light intensity is found, the maximum light intensity on the xoz surface and the maximum light intensity on the yoz plane are calculated, and when the maximum light intensity on the xoz surface is calculated, assuming that the light source is s1, the air bags 1 and 2 are kept unchanged, and different light intensities are obtained by changing the heights of the air bags 3 and 4; two wires are pulled out from two ends of the photovoltaic panel, the two wires comprise a wire 1 and a wire 2, a resistor is connected between the wire 1 and the wire 2, the illumination intensity is judged by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity is the maximum at the moment.
Preferably, when calculating the maximum illumination intensity on the yoz plane, keeping the air bag 1 and the air bag 4 unchanged, obtaining different illumination intensities by changing the heights of the air bag 2 and the air bag 3, pulling out two leads including the lead 1 and the lead 2 from two ends of the photovoltaic panel, connecting a resistor between the lead 1 and the lead 2, judging the illumination intensity by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity at the moment is maximum.
Preferably, the position of the light source at the maximum illumination intensity of the xoz plane is obtained first, the position is kept at this time, and then the position at the maximum illumination intensity of the yoz plane is obtained, and the position is the position at which the illumination intensity on the photovoltaic panel is maximum.
In summary, the invention mainly has the following beneficial effects:
the solar tracking method of the overwater drifting photovoltaic panel is low in cost, evaporation is reduced, water resources are saved, cleaning is convenient, and the direction can be freely regulated and controlled; the solar tracking method of the waterborne drifting photovoltaic panel changes the air bag by inflating the air pump so as to control the angle of the photovoltaic panel on the panel; receiving different maximum illumination intensities, and performing corresponding angle adjustment and direction control by adopting a lifting plane, so that the solar energy can be obtained in the maximum range, and the solar energy has the maximum power generation efficiency; through the continuous adjustment to the photovoltaic board, realize the direction freedom, can regulate and control the direction in a flexible way.
Drawings
FIG. 1 is one of the principles of the present invention;
FIG. 2 is a second schematic diagram of the present invention;
FIG. 3 is a third schematic diagram of the present invention;
FIG. 4 is a fourth schematic diagram of the present invention;
FIG. 5 is a fifth schematic of the present invention;
fig. 6 is a sixth schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 6, a solar tracking method for an above-water drifting photovoltaic panel includes the following steps:
s1, arranging an air bag 1, an air bag 2, an air bag 3 and an air bag 4 for controlling the angle of the photovoltaic panel at the four corners of the bottom of the photovoltaic panel of the overwater photovoltaic power station, and respectively controlling the air bag 1, the air bag 2, the air bag 3 and the air bag 4 to be inflated by air pumps;
s2, obtaining the relation between the height difference of the air bag and the inflation time;
s3, continuously adjusting the angle position of the photovoltaic panel by decomposing the light source, and finding out the position of the maximum illumination intensity of the sub-plane during adjustment;
and S4, synthesizing the two planes to obtain the position with the maximum illumination intensity.
When the relation between the height difference of the air bag and the inflation time is obtained in S2, performing the assumed simulation calculation, assuming that the air bag is a cylinder and the water tank is a cuboid, and obtaining the following relation by using one air bag:
setting the height d of the air bag exposed to the water surface before inflation1Height d of the air bag exposed to the water surface after inflation2The inflating flow of the air pump is S cm3/min, the radius of the air bag is rcm, and the radius of the air bag before inflation is r1cm, radius r after air bag inflation2cm; the following can be obtained:
πr2(d-d1)-πr2(d-d2)＝S·t；
The relationship between the air bag rising height difference delta d and the inflation time t is as follows:
in S3, lifting planes including 1, 2, 3, 4, 1, 4 and 2, 3 are set in cartesian coordinate system, and the direction illumination intensity of 1, 2, 3, 4 lifting planes is set as EaAt an included angle of beta1Setting the direction illumination intensity of 1, 4 lifting planes and 2, 3 lifting planes as EbAt an included angle of beta2(ii) a Decomposing a light source, splitting the light source into a horizontal axis and a vertical axis, namely an x axis and a y axis, and establishing a three-dimensional coordinate x axis, a y axis and a z axis; the position of the maximum illumination intensity of the light source on the xoz surface is found out through angle adjustment, then the air bag is kept still, and the position of the maximum illumination intensity of the light source on the yoz surface is found out through angle adjustment, wherein the position is the position of the maximum illumination intensity.
When the position of the maximum illumination intensity is found, the maximum illumination intensity on the xoz surface and the maximum illumination intensity on the yoz plane are calculated, and when the maximum illumination intensity on the xoz surface is calculated, assuming that the light source is s1, the air bag 1 and the air bag 2 are kept unchanged, and different illumination intensities are obtained by changing the heights of the air bag 3 and the air bag 4; two wires are pulled out from two ends of the photovoltaic panel, the two wires comprise a wire 1 and a wire 2, a resistor is connected between the wire 1 and the wire 2, the illumination intensity is judged by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity is the maximum at the moment.
When the maximum illumination intensity on the yoz plane is calculated, the air bag 1 and the air bag 4 are kept unchanged, different illumination intensities are obtained by changing the heights of the air bag 2 and the air bag 3, two leads including the lead 1 and the lead 2 are pulled out from two ends of the photovoltaic panel, a resistor is connected between the lead 1 and the lead 2, the illumination intensity is judged by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity at the moment is the maximum.
The solar tracking method of the overwater drifting photovoltaic panel is low in cost, evaporation is reduced, water resources are saved, cleaning is convenient, and the direction can be freely regulated and controlled; the solar tracking method of the waterborne drifting photovoltaic panel changes the air bag by inflating the air pump so as to control the angle of the photovoltaic panel on the panel; receiving different maximum illumination intensities, and performing corresponding angle adjustment and direction control by adopting a lifting plane, so that the solar energy can be obtained in the maximum range, and the solar energy has the maximum power generation efficiency; through the continuous adjustment to the photovoltaic board, realize the direction freedom, can regulate and control the direction in a flexible way.
Plan view as in FIG. 5, change of β2，β1B is unchanged, b is unchanged; adjusted in the maintained position initially at position u2 with illumination intensity E2，E2＜Eb，EbThe maximum illumination intensity in this direction. So that the angle alpha is increased2To the u3 position, time t2, let E2＝Eb. The position at this time is recorded. In general, the perspective view when the light source is illuminated is as follows in fig. 6: and (4) integrating the two decomposition conditions to obtain the position with the maximum final illumination intensity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A solar tracking method for an overwater drifting photovoltaic panel is characterized by comprising the following steps: the method comprises the following steps:
s1, arranging an air bag 1, an air bag 2, an air bag 3 and an air bag 4 for controlling the angle of the photovoltaic panel at the four corners of the bottom of the photovoltaic panel of the overwater photovoltaic power station, and respectively controlling the air bag 1, the air bag 2, the air bag 3 and the air bag 4 to be inflated by air pumps;
s2, obtaining the relation between the height difference of the air bag and the inflation time;
s3, continuously adjusting the angle position of the photovoltaic panel by decomposing the light source, and finding out the position of the maximum illumination intensity of the sub-plane during adjustment;
and S4, synthesizing the two planes to obtain the position with the maximum illumination intensity.
2. The solar tracking method of the above-water drifting photovoltaic panel of claim 1, characterized in that: when the relationship between the height difference of the air bag and the inflation time is obtained in S2, performing a hypothetical simulation calculation, assuming that the air bag is a cylinder and the water tank is a cuboid, and obtaining the following relationship by using one air bag:
setting the height d of the air bag exposed to the water surface before inflation1Height d of the air bag exposed to the water surface after inflation2The inflating flow of the air pump is S cm3/min, the radius of the air bag is rcm, and the radius of the air bag before inflation is r1cm, radius r after air bag inflation2cm; the following can be obtained:
πr2(d-d1)-πr2(d-d2)＝S·t；
The relationship between the air bag rising height difference delta d and the inflation time t is as follows:
3. the solar tracking method of the above-water drifting photovoltaic panel of claim 1, characterized in that: in S3, the lifting planes including 1, 2, 3, 4, 1, 4 and 2, 3 are set in the cartesian coordinate system, and the direction illumination intensity of 1, 2, 3, 4 lifting planes is set as EaAt an included angle of beta1Setting the direction illumination intensity of 1, 4 lifting planes and 2, 3 lifting planes as EbAt an included angle of beta2(ii) a Decomposing a light source, splitting the light source into a horizontal axis and a vertical axis, namely an x axis and a y axis, and establishing a three-dimensional coordinate x axis, a y axis and a z axis; the position of the maximum illumination intensity of the light source on the xoz surface is found out through angle adjustment, then the air bag is kept still, and the position of the maximum illumination intensity of the light source on the yoz surface is found out through angle adjustment, wherein the position is the position of the maximum illumination intensity.
4. The solar tracking method of the above-water drifting photovoltaic panel of claim 3, characterized in that: when the position of the maximum illumination intensity is found, the maximum illumination intensity on the xoz surface and the maximum illumination intensity on the yoz plane are calculated, when the maximum illumination intensity on the xoz surface is calculated, the light source is assumed to be s1, the air bag 1 and the air bag 2 are kept unchanged, and different illumination intensities are obtained by changing the heights of the air bag 3 and the air bag 4; two wires are pulled out from two ends of the photovoltaic panel, the two wires comprise a wire 1 and a wire 2, a resistor is connected between the wire 1 and the wire 2, the illumination intensity is judged by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity is the maximum at the moment.
5. The solar tracking method of the above-water drifting photovoltaic panel of claim 4, characterized in that: when the maximum illumination intensity on the yoz plane is calculated, the air bag 1 and the air bag 4 are kept unchanged, different illumination intensities are obtained by changing the heights of the air bag 2 and the air bag 3, two leads including the lead 1 and the lead 2 are pulled out from two ends of the photovoltaic panel, a resistor is connected between the lead 1 and the lead 2, the illumination intensity is judged by measuring the voltage at two ends of the resistor, and when the voltage reaches the peak value, the illumination intensity at the moment is the maximum.
6. The solar tracking method of the above-water drifting photovoltaic panel of claim 5, characterized in that: the position of the light source at the maximum illumination intensity of the xoz plane is obtained firstly, the position at this time is kept, and then the maximum illumination intensity of the light source at the yoz plane is obtained, wherein the position is the position of the maximum illumination intensity on the photovoltaic panel.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114537606A (en) * | 2022-03-04 | 2022-05-27 | 杭州华鼎新能源有限公司 | Linear photovoltaic tracking driving structure and photovoltaic power station |
| CN116280062A (en) * | 2023-05-23 | 2023-06-23 | 常州无双新能源科技有限公司 | Walking floating body for solar photovoltaic power generation on water |
| CN116760340A (en) * | 2023-08-21 | 2023-09-15 | 常州大唐光伏科技有限公司 | Water solar panel supporting device |
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| CN112202398A (en) * | 2020-09-29 | 2021-01-08 | 国电龙源电力技术工程有限责任公司 | Automatic clean cooling linkage photovoltaic tracking means and system |
| CN112448662A (en) * | 2020-10-16 | 2021-03-05 | 无锡职业技术学院 | Water solar power generation device |
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| CN105958908A (en) * | 2016-06-18 | 2016-09-21 | 青岛迪玛尔海洋工程有限公司 | Floating base and water floating-type photovoltaic power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114537606A (en) * | 2022-03-04 | 2022-05-27 | 杭州华鼎新能源有限公司 | Linear photovoltaic tracking driving structure and photovoltaic power station |
| CN116280062A (en) * | 2023-05-23 | 2023-06-23 | 常州无双新能源科技有限公司 | Walking floating body for solar photovoltaic power generation on water |
| CN116760340A (en) * | 2023-08-21 | 2023-09-15 | 常州大唐光伏科技有限公司 | Water solar panel supporting device |
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