CN101969278B - Apparatus for automatically tracking sunlight in inclination angle direction of battery board in photovoltaic power generation - Google Patents
Apparatus for automatically tracking sunlight in inclination angle direction of battery board in photovoltaic power generation Download PDFInfo
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- CN101969278B CN101969278B CN201010293214A CN201010293214A CN101969278B CN 101969278 B CN101969278 B CN 101969278B CN 201010293214 A CN201010293214 A CN 201010293214A CN 201010293214 A CN201010293214 A CN 201010293214A CN 101969278 B CN101969278 B CN 101969278B
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- inclination angle
- rotating shaft
- photovoltaic
- lever
- battery panel
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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
Abstract
The invention relates to an apparatus for automatically tracking sunlight in an inclination angle direction of a battery board in photovoltaic power generation, which comprises a photovoltaic panel mounted on a rotating shaft. The lower end of the photovoltaic panel is provided with an air-filled seal cavity, a piston is arranged at the outlet of the seal cavity and a lever is arranged on the rotating shaft. One end of the lever is articulated with the piston while the other end is contacted with the back surface of the battery board. In the invention, according to corresponding inherent law and characteristics between the changing period (one year) of inclination angle of the sun and the temperature (climate), ingeniously matched expansion on heating and contraction on cooling of gas in the seal cavity and horizontal component force of the photovoltaic panel fixed on the rotating shaft are utilized to form a push-pull type power source and the inclination angle of the photovoltaic panel can be adjusted directly by amplifying the displacement of the piston via the lever so as to realize two-dimensional automatic tracking of sunlight by the photovoltaic cell to achieve the purpose of improving the utilization rate of sunlight.
Description
Technical field
The present invention relates to two-dimentional device from the motion tracking sunlight in the Application of Solar Energy, cell panel inclination angle direction is from the device of motion tracking sunlight in particularly a kind of photovoltaic generation.
Technical background
Development and use are that the new forms of energy of representative have become one of human effective ways that solve energy crisis with solar energy, also as the energy basic decision of China's strategy of sustainable development.Solar energy power generating has become one of approach of its extensive use.But because sunlight size and direction be along with the time is done cyclic variation, in order to improve solar energy utilization ratio, the most general mode is exactly the automatic tracking system that is equipped with two-dimensional directional.Though develop into today in automatic control technology, realize from the motion tracking sunlight being not difficult matter.But, because automatic tracking system and the residing outdoor bad working environment of transmission mechanism will guarantee under low-cost condition that its functional reliability then has very big difficulty.So development is according to the two-dimentional automatic tracking system of the characteristics outfit of photovoltaic generation low cost and high reliability own, it is significant effectively to improve solar energy utilization ratio.
High-precision two-dimensional tracking system is indispensable for solar concentrator; But consider factors such as cost and actual effect; At many large-scale photovoltaics generating occasions more one dimension (azimuth) autotrack modes that adopt of having to, so reduced solar energy utilization ratio again more.In fact the azimuthal variation cycle (one day) is 365 times of period of change (a year) at inclination angle; If so can be according to the corresponding relation of these characteristics and certain factor (like climate temperature); Seek the complication system that the direction autotracker replacement of a kind of simple and effective inclination angle is generally used at present according to collection sunlight signal, processing and driving composition; Under the situation that effectively reduces cost and assurance reliability; Form two-dimentional automatic tracking system with the automatic tracking section in azimuth, guaranteed that again photovoltaic generation has reached desirable operating state.
Summary of the invention
The objective of the invention is to according to photovoltaic generation for the tracking accuracy of automatic tracking system relatively can be lower with respect to the automatic tracking system precision prescribed in the solar concentrator characteristics, provide in the photovoltaic generation of a kind of low cost, high reliability cell panel inclination angle direction from the device of motion tracking sunlight.
For achieving the above object; The technical scheme that the present invention adopts is: comprise support and rack-mount rotating shaft, photovoltaic battery panel is installed on rotating shaft, the lower end that on support, is positioned at photovoltaic battery panel is provided with the annular seal space of inflation body; The exit of annular seal space is provided with piston; Lever is installed in the rotating shaft, an end and the piston hinge of lever, and the other end contacts with the back side of photovoltaic battery panel.
The back side of photovoltaic battery panel of the present invention and the lower end that is positioned at rotating shaft are equipped with the slip curved surface, and lever contacts with this slip curved surface;
Described and the end contacted lever in the photovoltaic battery panel back side is provided with roller;
The cavity volume of described annular seal space goes out young greatly, and is provided with elastic soft sealing body and heat-insulation layer in the annular seal space;
Described gas adopts the bigger gas of thermal coefficient of expansion;
The static line of described rotating shaft is positioned at the above position of mid point of photovoltaic cell plate height.
The present invention is corresponding with climate temperature and change characteristics slowly according to sunlight incident angle of inclination; Climate temperature indirectly as sunlight incident angle of inclination; Utilize expanding with heat and contract with cold and being fixed on the mutual ingenious cooperation of horizontal component of the photovoltaic battery panel on the rotating shaft of gas in the obturator; Form the push-pull type power source, amplify the back through the displacement of lever harrow piston again and directly realize adjusting the photovoltaic battery panel angle of inclination.In order to the inclination angle autotracker that replaces generally using at present, form two-dimentional automatic tracking system with the azimuth autotracker again, reach the purpose that improves the automatic tracking system cost performance.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is an inclination angle of the present invention sketch map.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
Referring to Fig. 1; The present invention includes the photovoltaic battery panel 1 that is installed on the rotating shaft 2; The static line of described rotating shaft 2 is positioned at the above position of mid point of photovoltaic battery panel 1 height, and the back side of photovoltaic battery panel 1 and the lower end that is positioned at rotating shaft 2 are equipped with slip curved surface 3, in the lower end of photovoltaic battery panel 1 is provided with, fill the annular seal space 11 of the bigger gas of thermal coefficient of expansion 8; The cavity volume of annular seal space 11 goes out young greatly; And be provided with elastic soft sealing body 9 and heat-insulation layer 10 in the annular seal space 11, the exit of annular seal space is provided with piston 7, and lever 5 is installed in the rotating shaft 6; One end and the piston 7 of lever are hinged, and the other end is equipped with roller 4 and contacts with the slip curved surface 3 of photovoltaic battery panel 1.
The present invention requires the annular seal space of certain volume and the piston of minor diameter to move the sensitiveness for variations in temperature to guarantee piston.Because for the constant expansion coefficient of certain gas, volume is big more, change in volume is just big more during variations in temperature, thereby it is big more to promote amount of piston displacement.
Insulation: good heat-insulating property in case with every day temperature the phenomenon of expanding with heat and contract with cold that causes of variation filter out as far as possible;
The elastic sealed body of inner softness of placing not only has excellent sealing performance, guarantees that gas does not leak for a long time, and requires coefficient of elasticity smaller.
Power arm as the lever of displacement amplifier is connected with the piston termination with hinging manner; The resistance arm termination is equipped with pulley and contacts with the surface of rolling; Length between resistance arm and the power arm is than depending on the surperficial surface of rolling of photovoltaic battery panel and the factors such as distance of rotating shaft of being fixed on; Distance is big more, though the strength that needs is more little, requires its ratio big more.
The rotating shaft static line is positioned at above certain position of mid point of photovoltaic cell height; Requirement must can guarantee on its stable pulley that leans against the resistance arm termination by the gravity of dependence component in the horizontal direction own in normal working conditions, and determine the angle of inclination of photovoltaic battery panel thus; It is relevant apart from data such as the thrust of size and resistance arm and displacements that the surface of rolling is fixed in photovoltaic cell back of the body surface and rotating shaft, and evidence, the better effects if when surface of the surface of rolling is a curve form.
Its concrete course of work is following:
Because sunlight incident angle change slowly and with climate temperature changes corresponding characteristics; Utilize gas expand with heat and contract with cold characteristic be fixed on the mutual ingenious cooperation of horizontal component of the photovoltaic battery panel on the rotating shaft; Form the push-pull type power source; Through lever construction the back is amplified in its displacement again and realize, reach at the angle of inclination direction the automatic tracking effect of sunlight to being fixed on effective adjusting at the photovoltaic battery panel angle of inclination on the rotating shaft.
In Fig. 2, for the Northern Hemisphere, sunray incidence angle d is minimum when " Winter Solstice "; Progressively increase along with the solar incident ray inclination angle; Temperature on average also in slow rising, and the gas in the sealing ring chamber raises along with temperature and cause its volume to increase, and promotes piston and move right; Through lever its displacement is amplified the back pulley that forms the resistance arm termination to left movement; Thereby the photovoltaic battery panel lower end be moved to the left accordingly and make the inclination angle become big, consistent with sunray incident angle variation tendency, thereby the assurance sunray can vertical irradiation on photovoltaic battery panel.
Equally; In case the inclination angle of " Summer Solstice " back solar incident ray is begun progressively to diminish by the β of maximum; Temperature is also simultaneously along with reduction, and at this moment the gas in the annular seal space reduces along with temperature and causes its volume to reduce, so produce the pressure of piston and the dynamic equilibrium of photovoltaic battery panel horizontal direction component are broken of sealing gas; Promote piston to left movement through leverage; Thereby the photovoltaic battery panel lower end is moved right accordingly and make the inclination angle diminish, consistent with sunray incident angle variation tendency, realized that equally sunray can the target of vertical irradiation on photovoltaic battery panel.
Ability final decision after yet in fact specifically quantitative variation unanimity then needs detailed calculation of parameter and test to revise; Also to consider many influencing factors in addition; Temperature itself like the earth is exactly a Large-lag System; Temperature such as should " Summer Solstice " is the highest, but in fact is only the hottest " hot summer days " after tens days.Also be the same winter, and " Winter Solstice " is not temperature minimum the time etc., and after must these influencing factors being considered, the specialized designs of the surface of rolling through being fixed on the photovoltaic battery panel back side is regulated and revised, and just can reach the set goal.
With respect to solar concentrator; Tracking accuracy requires in the so not high large-scale photovoltaic generating set system; Thousands of photovoltaic battery panels can be realized the azimuth synchronously from motion tracking through unified mechanical structure (like rotation mode), and then realize respectively from motion tracking through this device at the inclination angle of each photovoltaic battery panel; The two-dimentional photovoltaic battery panel auto sun-tracking system of forming thus; Both well solved the bottleneck problem of the high restriction solar energy of tracking system complex structure and cost in applying; Effectively raise solar energy utilization rate again, have good practical value.
Claims (6)
- In the photovoltaic generation cell panel inclination angle direction from the device of motion tracking sunlight; Comprise support and rack-mount rotating shaft (2); Photovoltaic battery panel (1) is installed on rotating shaft; It is characterized in that: the lower end that on support, is positioned at photovoltaic battery panel (1) is provided with the annular seal space (11) of inflation body (8), and the exit of annular seal space is provided with and exports the piston (7) that adapts, and moves the sensitiveness for interior inflation body (8) variations in temperature to guarantee piston (7); The horizontal component that expands with heat and contract with cold and be fixed on the photovoltaic battery panel (1) on the rotating shaft (2) of inflation body (8) cooperatively interacts in utilizing in the described annular seal space (11); Form the push-pull type power source, amplify the back through the displacement of lever harrow piston again and directly realize the adjusting to the photovoltaic battery panel angle of inclination, lever (5) is installed in the rotating shaft (6); One end of lever and piston (7) are hinged, and the other end contacts with the back side of photovoltaic battery panel (1).
- 2. cell panel inclination angle direction is from the device of motion tracking sunlight in the photovoltaic generation according to claim 1; It is characterized in that: the back side of described photovoltaic battery panel (1) and the lower end that is positioned at rotating shaft (2) are equipped with slip curved surface (3), and lever (5) contacts with this slip curved surface.
- 3. cell panel inclination angle direction is characterized in that from the device of motion tracking sunlight in the photovoltaic generation according to claim 1 and 2: the described and end contacted lever in photovoltaic battery panel (1) back side (5) is provided with roller (4).
- 4. cell panel inclination angle direction is from the device of motion tracking sunlight in the photovoltaic generation according to claim 1; It is characterized in that: the cavity volume of described annular seal space (11) goes out young greatly, and is provided with elastic soft sealing body (9) and heat-insulation layer (10) in the annular seal space (11).
- 5. cell panel inclination angle direction is characterized in that from the device of motion tracking sunlight in the photovoltaic generation according to claim 1: described gas (8) adopts the bigger gas of thermal coefficient of expansion.
- 6. cell panel inclination angle direction is characterized in that from the device of motion tracking sunlight in the photovoltaic generation according to claim 1: the static line of described rotating shaft (2) is positioned at the above position of mid point of photovoltaic battery panel (1) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010293214A CN101969278B (en) | 2010-09-27 | 2010-09-27 | Apparatus for automatically tracking sunlight in inclination angle direction of battery board in photovoltaic power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010293214A CN101969278B (en) | 2010-09-27 | 2010-09-27 | Apparatus for automatically tracking sunlight in inclination angle direction of battery board in photovoltaic power generation |
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| Publication Number | Publication Date |
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| CN101969278A CN101969278A (en) | 2011-02-09 |
| CN101969278B true CN101969278B (en) | 2012-10-10 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174932B (en) * | 2011-03-25 | 2012-11-21 | 英利能源（中国）有限公司 | Driver capable of automatically adjusting angle change of photovoltaic assembly by utilizing season temperature |
| CN102570911A (en) * | 2011-11-17 | 2012-07-11 | 陕西科技大学 | Sunlight device for automatically tracking inclination angle of solar panel in photovoltaic generation |
| CN102749934B (en) * | 2012-07-26 | 2014-10-01 | 陕西科技大学 | Automatic tracker for sunlight |
| CN103439978B (en) * | 2013-08-12 | 2015-08-19 | 华中科技大学 | A kind of sun tracker |
| CN103455039A (en) * | 2013-09-03 | 2013-12-18 | 李先强 | Solar automatic focusing device |
| CN104914881B (en) * | 2015-04-10 | 2017-10-13 | 太原科技大学 | The control method of photovoltaic generation double-axis tracking structure based on pole axis |
| CN104950916A (en) * | 2015-06-12 | 2015-09-30 | 合肥市徽腾网络科技有限公司 | Device for tracking declination angle by using soil temperature of underground shallow layer and adjustment method |
| CN111490731B (en) * | 2020-05-07 | 2020-12-18 | 浙江中聚材料有限公司 | Automatic steering shielding device for photovoltaic panel |
| CN112066327A (en) * | 2020-09-22 | 2020-12-11 | 合肥安能智控技术有限公司 | Wind-solar complementary solar street lamp with adjustable angle |
| CN112271986B (en) * | 2020-10-15 | 2022-04-19 | 合肥凌山新能源科技有限公司 | Photovoltaic power generation device on water of angularly adjustable |
| CN113636738A (en) * | 2021-07-06 | 2021-11-12 | 绍兴市上虞区供水有限公司 | Solar sludge drying device |
| CN113638526B (en) * | 2021-08-10 | 2023-02-10 | 正兴建设集团股份有限公司 | Photovoltaic energy-saving curtain wall and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2783212Y (en) * | 2004-12-07 | 2006-05-24 | 武汉市飞龙矿业有限公司 | Sunshine tracked solar energy heat collector |
| DE102005015948A1 (en) * | 2005-04-07 | 2006-10-12 | Festo Ag & Co | Fluid component e.g. fluid actuator, has solar cell arrangements for converting kinetic energy of piston moving in cylinder into electrical energy for operating radio communication device which transmits sensor and control signals |
| CN200989687Y (en) * | 2006-12-04 | 2007-12-12 | 张定忠 | Automatic tracking solar energy heat collector |
| CN201177391Y (en) * | 2008-02-04 | 2009-01-07 | 宗先元 | Automatic following solar range |
-
2010
- 2010-09-27 CN CN201010293214A patent/CN101969278B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2783212Y (en) * | 2004-12-07 | 2006-05-24 | 武汉市飞龙矿业有限公司 | Sunshine tracked solar energy heat collector |
| DE102005015948A1 (en) * | 2005-04-07 | 2006-10-12 | Festo Ag & Co | Fluid component e.g. fluid actuator, has solar cell arrangements for converting kinetic energy of piston moving in cylinder into electrical energy for operating radio communication device which transmits sensor and control signals |
| CN200989687Y (en) * | 2006-12-04 | 2007-12-12 | 张定忠 | Automatic tracking solar energy heat collector |
| CN201177391Y (en) * | 2008-02-04 | 2009-01-07 | 宗先元 | Automatic following solar range |
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| CN101969278A (en) | 2011-02-09 |
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