CN101980374A - A solar photovoltaic module with temperature regulation - Google Patents
A solar photovoltaic module with temperature regulation Download PDFInfo
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- CN101980374A CN101980374A CN 201010289958 CN201010289958A CN101980374A CN 101980374 A CN101980374 A CN 101980374A CN 201010289958 CN201010289958 CN 201010289958 CN 201010289958 A CN201010289958 A CN 201010289958A CN 101980374 A CN101980374 A CN 101980374A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a solar photovoltaic module with function of temperature adjustment. In the solar photovoltaic module, an extended surface metal thin plate is tightly attached to a back panel to strengthen heat convention between the back panel and air, and a thin plate and the original frame of the photovoltaic module jointly form an air channel with a rectangular section; a plurality of miniature fans arranged in the air channel ensure that air in the channel forcibly flows, exchanges heat with the corrugated metal thin plate and carries away heat generated by a photovoltaic cell, so that the working temperature of the cell can be reduced. Start and stop of each fan in a fan group are controlled by each path of thermoswitch. The solar photovoltaic module has a simple structure, high reliability and low additional cost, automatically adjusts heat dissipation, and ensures normal work of the photovoltaic module due to effective heat dissipation.
Description
Technical field
The present invention relates to a kind of solar photovoltaic assembly, the solar photovoltaic assembly of the air-cooled reduction battery temperature of particularly a kind of automatic control.
Background technology
The working temperature of photovoltaic cell is the key factor that influences solar photovoltaic assembly and the output of photovoltaic generating system power.The silica-based solar photovoltaic cell is the battery of main type in the photovoltaic generating system at present.1 ℃ of the general every rising of working temperature when battery, the power of silica-based solar cell will reduce about 0.5%.Therefore in actual applications, the efficiently radiates heat of solar photovoltaic assembly is very important.For example, the solar module that in the BIPV system, uses, what have leaves air duct so that natural draft is had plenty of cell panel and is close to thermal insulation layer between the cell panel back side and thermal insulation layer.The shortcoming of this dual mode is the cell panel improper ventilation, causes the rising of cell panel temperature, electric output power to reduce.Therefore, be the feasible and effective means of a kind of convenience by the cell panel back side being improved, promoted in the passage of the back side air flows and heat exchange and then cell panel being cooled off.
Existing passive heat radiation device utilizes in the runner of cell panel back the air back free convection of being heated to take away the part heat, and this mode can play certain effect to reducing the cell panel temperature, but that shortcoming is a radiating effect is not good; Also have the heat abstractor that installs rib structure at the cell panel back additional to improve heat dispersion, though this heat abstractor can be obtained certain effect, install hugelyr and heavy, and price is higher, has limited its practical application.There is the inventor that active heat abstractor is studied.The effect of active radiating mode is fine, but the active heat removal device need consume certain energy.According to the literature, in some experimental studies, have the active heat removal of application mode to come the cool batteries plate at present, but these heat abstractors can not be regulated its running status automatically according to operating condition.Under the lower situation of radiating requirements, the energy that driving dispels the heat is consumed might cause net power output (power that net power output consumes for the assembly power output deduction heat abstractor) minimizing on the contrary of photovoltaic cell component greater than the electricity of the many outputs of cell panel.
Disclosed relevant patent mainly contains at present:
1) Zhao Yaohua of Sector East, Wangjing Quarter, Chaoyang District, Beijing; Diao Yanhua; The radiating device for photovoltaic battery of Zhang Kairong invention, the patent No. 200810239002.This summary of the invention is to be solved to be the heat dissipation problem of photovoltaic module, and the heat radiation form is the passive heat radiation system.Though cooling system can reach certain cooling effect, radiating effect is not as active radiating mode, and heat abstractor is relatively heavier, is not suitable for the solar module of BIPV.
2) device of solar generating of the outfit fin of the Li Zhengen of Taihan Techren Co., Ltd. invention, the patent No. 200610078311.5.This summary of the invention is to be solved to be the heat dissipation problem of light-focusing type photovoltaic module, and system adopts the passive heat radiation mode.Though cooling system can be obtained certain radiating effect, this system is not suitable for the photovoltaic module of non-light-focusing type, and heat abstractor is relatively heavier, cost is higher, is not suitable for the solar module of BIPV.
Summary of the invention
The present invention be directed to working temperature and directly influence the problem of the power output of solar photovoltaic assembly, a kind of thermoregulator solar photovoltaic assembly of being with has been proposed, utilize the wind-cooling heat dissipating device of the automatic control of band to take away the heat that solar panel produces, guarantee the normal effective work of solar photovoltaic assembly.
Technical scheme of the present invention is: a kind ofly be with thermoregulator solar photovoltaic assembly, comprise photovoltaic module, the photovoltaic module backboard tightens the metal thin plate of gilding, with air duct that cross sectional shape is a rectangle of the common formation of the original frame of photovoltaic module, the blower fan group is arranged in the import of passage, the blower fan group is over against air duct, the thermoswitch group is fixed in the backboard of photovoltaic cell with heat-conducting glue, the thermoswitch group is made up of the thermoswitch in the different temperatures conducting of counting equal number with blower fan group blower fan platform, and the start and stop of each blower fan are by the thermoswitch control on every road in the blower fan group.
Described sheet metal can be corrugated plating, fin plate or pin floor, the thin plate that strengthens area of dissipation commonly used.
Beneficial effect of the present invention is: the present invention is a kind of to be with thermoregulator solar photovoltaic assembly, simple in structure, reliability is high, fringe cost is low, regulates heat radiation automatically, and heat radiation has guaranteed the operate as normal of photovoltaic module effectively.
Description of drawings
Fig. 1 is the thermoregulator solar photovoltaic assembly structural representation of band of the present invention;
Fig. 2 is the thermoregulator solar photovoltaic assembly B-B of a band of the present invention sectional view;
Fig. 3 is the thermoregulator solar photovoltaic assembly A-A of a band of the present invention sectional view;
Fig. 4 is the thermoregulator solar photovoltaic assembly control mode of band of the present invention figure;
Fig. 5 is the cell panel back temperature comparison diagram of the different heat abstractors of solar photovoltaic assembly band of the present invention;
Fig. 6 is the net power output comparison diagram that has different heat abstractor photovoltaic battery panels.
Embodiment
Be with thermoregulator solar photovoltaic assembly as shown in Figure 1, 2, 3, comprise photovoltaic module, photovoltaic module backboard 3 tightens the metal thin plate of gilding, as among Fig. 2 being the heat convection that metal corrugated plate 5 is strengthened between backboard and air, with cover plate 6 and air duct that cross sectional shape is a rectangle of the common formation of the original frame of photovoltaic module.Blower fan group 4 is arranged in the import of passage, and the interior force air of passage is flowed, and heat exchange takes place for air and corrugated metal sheet (or fin), takes away the heat that photovoltaic cell produces, thereby reduces the working temperature of battery.The start and stop of each blower fan are by 2 controls of thermoswitch group in the blower fan group, thermoswitch group 2 is connected with blower fan by terminal box 1, thermoswitch group 2 usefulness heat-conducting glues are fixed in the backboard of photovoltaic cell, the thermoswitch group is made up of several thermoswitches in the different temperatures conducting, each switch can independently be controlled several blower fans, there is baffle plate 7 to separate in the blower fan group between each blower fan, each blower fan guarantees certain spacing, can regulate the number of the cooling fan that puts into operation like this according to different radiating requirements automatically, when satisfying radiating requirements, avoid the unnecessary energy consumption of cooling system.
A-A sectional view blower fan group 4 is arranged in the import of passage as shown in Figure 3, and one has 8 blower fans on the vertical air flow direction.The start and stop of blower fan have four thermoswitches of often opening by the control of thermoswitch group in the thermoswitch group 2, its closed temperature is respectively 40 ℃, 45 ℃, 50 ℃, 55 ℃, two blower fans of each thermoswitch control, and control mode is seen Fig. 4.When the cell panel temperature was higher than the closed temperature of switch, switch closure was connected the blower fan power supply circuits, and blower fan is started working.Otherwise when the cell panel temperature was lower than the closed temperature of switch, switch disconnected, and disconnected the blower fan power supply circuits, and blower fan quits work.40 ℃ of thermoswitches are controlled III and VI blower fan; 45 ℃ of thermoswitches are controlled II and VII blower fan; 50 ℃ of thermoswitches are controlled IV and V blower fan; 55 ℃ of thermoswitches are controlled I and VIII blower fan.The concrete corresponded manner of thermoswitch and blower fan can be measured by experiment with theory analysis and further optimize.
We test comprising three kinds of different heat abstractors such as this programme application example, have compared the effect of three kinds of different heat abstractors on solar module.As illustrated in Figures 5 and 6, A, B device all adopt the active heat removal mode, difference is all operations all the time of radiator fan all in the B device, there are not temperature survey and blower fan Packet Control Function in the device, blower fan in the A device is controlled by thermistor, the C device has only the heat dissipation channel at the cell panel back side, does not have cooling fan, and air flows naturally.We constitute three kinds of battery panel components called after assembly A, assembly B and assembly C respectively with three kinds of cell panel combinations that heat abstractor is identical with three block specifications, and the nominal power of every cell panel all is 80W.
After as can be seen from Figure 5 adopting active cooling system, the temperature of battery component obviously reduces, particularly solar radiation is strong, obvious especially when outside air temperature is higher at noon.Work all the time temperature of (assembly B) battery component of radiator fan is minimum; Have only the part fan work when radiator fan work is subjected to temp autocontrolled control (assembly A), so the temperature of battery component is than the summary height of assembly B.Comparison by six pairs of three kinds of assembly net power outputs of figure can find that the net power output of assembly A is the highest substantially.And assembly B is in the morning with the solar radiation in afternoon not too strong the time, and its power output is lower than assembly C on the contrary.Its reason mainly is because the operating state that the active heat removal system of assembly B can not regulate blower fan according to radiating requirements, under the situation lower at irradiance, that radiating requirements is less, the power of fan that puts into operation is constant substantially, the power output that the energy that causes heat radiation to consume increases owing to the temperature reduction greater than solar module, so net power output lowers.The solar photovoltaic assembly of the air-cooled reduction battery temperature of automatic control of the present invention can address this problem well.When irradiance was low, the thermoswitch group reduced the blower fan number that puts into operation automatically; When irradiance is higher, the blower fan number that the thermoswitch group is increased input automatically and moved.Its objective is and reduce energy unnecessary, that be used for active heat radiation consumption as far as possible, make the net power output of photovoltaic module be in higher level.A large amount of experiments show: this heat abstractor can be regulated the startup number of blower fan automatically according to different operating modes, effectively controls the temperature of photovoltaic module.(the about 1000W/m of solar irradiance in photovoltaic module is operated in battery temperature very hostile environment
2, about 35 ℃ of ambient temperatures, calm or gentle breeze), the pressure that drives air in the passage by blower fan is cooled off, and the temperature of photovoltaic module can be controlled at below 55 ℃.The photovoltaic module that reaches cooling effect with natural convection air in the dependence passage under the same terms is compared, and has the net power output height of the photovoltaic module of the active heat abstractor of automatic controlled function.Therefore, photovoltaic module of the present invention has actual application value preferably.
Along with the exhausted of fossil energy and use fossil energy cause going from bad to worse of environment, renewable energy power generation technology particularly solar energy generation technology more and more causes barring up of society.The BIPV electricity generation system will play an important role in the energy supply in city, and therefore, the application of BIPV assembly will be more and more widely.The design of the photovoltaic module of this kind employing active heat removal device is fairly simple, change to existing photovoltaic module is little, the production procedure of photovoltaic module is at present done simple change and can be produced solar photovoltaic assembly of the present invention, and fringe cost is lower, is accepted by assembly manufacturer and proprietor easily.Therefore, the present invention has very strong feasibility; Simultaneously, improve its performance in the photovoltaic module that heat abstractor of the present invention also can be used for having built up.On the other hand, the solar photovoltaic assembly that has the active heat removal device not only can reduce the temperature of photovoltaic cell, and can improve the generating efficiency of photovoltaic cell and the net power output of photovoltaic system.After adopting the present invention, the annual energy output of photovoltaic generating system will obviously increase, system's investment payback time can obviously shorten, the cost of photovoltaic generation also will decrease, the lifting of the economic benefit of bringing can promote social all available forces investment solar photovoltaic generation system, promote the application of solar power generation, improve the energy resource structure of China conscientiously in the city.
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| CN 201010289958 CN101980374A (en) | 2010-09-25 | 2010-09-25 | A solar photovoltaic module with temperature regulation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364695A (en) * | 2011-06-30 | 2012-02-29 | 常州天合光能有限公司 | A cooling structure for reducing the temperature of photovoltaic power generation components |
| CN102913390A (en) * | 2012-10-08 | 2013-02-06 | 太原科技大学 | Solar chimney power generation and photovoltaic power generation combined structure and varied air duct control method |
| CN102931266A (en) * | 2012-10-30 | 2013-02-13 | 厦门镁尔捷能源技术有限公司 | Solar module |
| CN103219410A (en) * | 2012-12-27 | 2013-07-24 | 北京唯绿建筑节能科技有限公司 | Solar energy photovoltaic power generation device with ventilation device |
| EP2829944A3 (en) * | 2013-07-23 | 2015-11-04 | LSIS Co., Ltd. | Temperature control system for solar cell module |
| CN106357218A (en) * | 2016-10-31 | 2017-01-25 | 皮普军 | Photovoltaic power generation unit monitoring system |
| CN108449047A (en) * | 2018-03-23 | 2018-08-24 | 山东大学 | A system and method for comprehensive utilization of photovoltaic light and heat |
| CN117895894A (en) * | 2024-03-06 | 2024-04-16 | 南京理工大学 | Lightweight PV/T hot water-air composite module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004610Y (en) * | 2007-02-13 | 2008-01-09 | 张耀明 | Light focusing wind cooling optical power generation device using dual screw for relay drive |
| CN201103552Y (en) * | 2007-11-15 | 2008-08-20 | 胡雪峰 | Temperature-controlled fan |
-
2010
- 2010-09-25 CN CN 201010289958 patent/CN101980374A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004610Y (en) * | 2007-02-13 | 2008-01-09 | 张耀明 | Light focusing wind cooling optical power generation device using dual screw for relay drive |
| CN201103552Y (en) * | 2007-11-15 | 2008-08-20 | 胡雪峰 | Temperature-controlled fan |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364695A (en) * | 2011-06-30 | 2012-02-29 | 常州天合光能有限公司 | A cooling structure for reducing the temperature of photovoltaic power generation components |
| CN102913390A (en) * | 2012-10-08 | 2013-02-06 | 太原科技大学 | Solar chimney power generation and photovoltaic power generation combined structure and varied air duct control method |
| CN102931266A (en) * | 2012-10-30 | 2013-02-13 | 厦门镁尔捷能源技术有限公司 | Solar module |
| CN102931266B (en) * | 2012-10-30 | 2015-06-03 | 厦门镁尔捷能源技术有限公司 | Solar module |
| CN103219410A (en) * | 2012-12-27 | 2013-07-24 | 北京唯绿建筑节能科技有限公司 | Solar energy photovoltaic power generation device with ventilation device |
| EP2829944A3 (en) * | 2013-07-23 | 2015-11-04 | LSIS Co., Ltd. | Temperature control system for solar cell module |
| US9847440B2 (en) | 2013-07-23 | 2017-12-19 | Lsis Co., Ltd. | Temperature control system for solar cell module |
| CN106357218A (en) * | 2016-10-31 | 2017-01-25 | 皮普军 | Photovoltaic power generation unit monitoring system |
| CN106357218B (en) * | 2016-10-31 | 2018-12-04 | 天津市裕控科技有限公司 | A kind of photovoltaic generation unit monitoring system |
| CN108449047A (en) * | 2018-03-23 | 2018-08-24 | 山东大学 | A system and method for comprehensive utilization of photovoltaic light and heat |
| CN108449047B (en) * | 2018-03-23 | 2023-11-03 | 山东大学 | Photovoltaic photo-thermal comprehensive utilization system and method |
| CN117895894A (en) * | 2024-03-06 | 2024-04-16 | 南京理工大学 | Lightweight PV/T hot water-air composite module |
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Application publication date: 20110223 |