CN109818565B - Device and method for automatically removing accumulated snow of photovoltaic cell panel - Google Patents
Device and method for automatically removing accumulated snow of photovoltaic cell panel Download PDFInfo
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- CN109818565B CN109818565B CN201910262579.1A CN201910262579A CN109818565B CN 109818565 B CN109818565 B CN 109818565B CN 201910262579 A CN201910262579 A CN 201910262579A CN 109818565 B CN109818565 B CN 109818565B
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Abstract
The application provides a photovoltaic cell panel automatic snow removing device, which comprises a heating device, a controller, a snow thickness sensor and a temperature sensor, the heating device comprises a photovoltaic cell panel and a heating belt, the accumulated snow thickness sensor is arranged in the vertical direction of the photovoltaic cell panel, used for detecting the thickness of the accumulated snow on the photovoltaic cell panel, the temperature sensor is arranged on the photovoltaic cell panel, used for detecting the temperature of the surface of the photovoltaic cell panel, the controller is connected with the accumulated snow thickness sensor and the temperature sensor, the device is used for determining the working state according to the detection value of the accumulated snow thickness sensor and/or the detection value of the temperature sensor, controlling the power system to transmit electric energy to the photovoltaic cell panel, so that the photovoltaic cell panel generates heat to remove accumulated snow or control the photovoltaic cell panel to transmit electric energy to a power system to perform normal photovoltaic power generation. The device does not need manual operation and has lower implementation cost.
Description
Technical Field
The application relates to the technical field of solar energy, in particular to a photovoltaic cell panel automatic snow removing device and method.
Background
Solar photovoltaic power generation is widely used, and a photovoltaic cell panel is a core part of a solar photovoltaic power generation system. Because the photovoltaic cell panel is placed outdoors for a long time, the generating efficiency of the photovoltaic cell panel is easily influenced by weather factors. Particularly, in regions with higher latitudes, such as the north of China, solar energy resources are abundant, but in winter, the solar energy is long and the snow fall amount is large, and the accumulated snow covers the photovoltaic cell panel, so that the absorption and utilization of solar energy by the photovoltaic cell are influenced, the photovoltaic cell cannot normally work, meanwhile, the bearing pressure of the photovoltaic cell panel is increased, the service life of the photovoltaic cell is influenced, and therefore the accumulated snow on the photovoltaic cell panel needs to be removed in time. At present, the main mode of removing accumulated snow on the photovoltaic cell panel is still manual snow removal (usually, a high-pressure water gun or a cleaning brush is manually equipped), and although the operation is simple, the labor cost is high, the photovoltaic module is easy to damage, and personal safety hazards exist. The prior art also discloses methods such as robot snow removal and external snow removal tools, and the defects of complex device, inflexible use and the like exist.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provides a photovoltaic cell panel automatic snow removing device and method.
The application provides a photovoltaic cell board automatic clear snow device, including heating device, controller, snow thickness sensor and temperature sensor, heating device includes photovoltaic cell board, snow thickness sensor sets up in photovoltaic cell board's the vertical direction for detect the snow thickness on the photovoltaic cell board, temperature sensor sets up on photovoltaic cell board, is used for detecting the temperature on photovoltaic cell board surface, the controller with snow thickness sensor and temperature sensor are connected, are used for confirming operating condition according to snow thickness sensor's detected value and/or temperature sensor's detected value, under first operating condition, controller control electric power system is right photovoltaic cell board transmission electric energy, so that photovoltaic cell board generates heat and clears away the snow, under second operating condition, the controller controls the photovoltaic cell panel to perform normal photovoltaic power generation and supply electric energy to the power system.
Further, heating device still includes the heating band, the heating band sets up the frame back of photovoltaic cell board, under first operating condition, the controller still controls electric power system right the heating band transmission electric energy, so that the heating band generates heat and clears away the snow.
Further, the power system comprises a direct current power system and/or an alternating current power system.
Further, the direct current power system is a storage battery, and the storage battery is respectively connected with the photovoltaic cell panel, the heating belt and the controller.
The controller controls the rectification inverter circuit to operate in a reverse direction in a first working state, the controller is used as a rectifier to convert alternating current of the alternating current power system into direct current and transmit the direct current to the heating device, and the controller controls the rectification inverter circuit to operate in a forward direction in a second working state, and the controller is used as an inverter to convert the direct current of the photovoltaic cell panel into alternating current and transmit the alternating current to the alternating current power system.
Further, the photovoltaic cell panel is arranged obliquely.
Further, the condition of first operating condition is that snow thickness sensor detects the snow thickness on the photovoltaic cell board and is higher than 3cm, the condition of second operating condition is that snow thickness sensor detects the snow thickness on the photovoltaic cell board and is less than 3cm, and temperature sensor detects the temperature that photovoltaic cell board is higher than 0 ℃.
The application provides a photovoltaic cell board automatic clear snow method, adopts photovoltaic cell board automatic clear snow device, the method includes following step:
detecting the thickness of snow on the photovoltaic cell panel through a snow thickness sensor, and detecting the temperature of the photovoltaic cell panel through a temperature sensor;
determining a working state according to the detection value of the snow thickness sensor and/or the detection value of the temperature sensor;
under the first operating condition, the controller control electric power system is right photovoltaic cell board and heating band transmission electric energy, so that photovoltaic cell board and heating band generate heat and clear away the snow, under the second operating condition, the controller control photovoltaic cell board is to electric power system transmission electric energy to carry out normal photovoltaic power generation.
Further, the power system comprises a direct current power system and/or an alternating current power system;
the direct-current power system is a storage battery, and the storage battery is respectively connected with a photovoltaic cell panel, a heating belt and a controller;
the alternating current power system is connected with the photovoltaic cell panel and the heating belt through the rectification inverter circuit, in a first working state, the controller controls the rectification inverter circuit to run reversely to serve as a rectifier to convert alternating current of the alternating current power system into direct current and then transmit the direct current to the heating device, and in a second working state, the controller controls the rectification inverter circuit to run forwards to serve as an inverter to convert the direct current of the photovoltaic cell panel into alternating current and then transmit the alternating current to the alternating current power system.
Further, the condition of first operating condition is that snow thickness sensor detects the snow thickness on the photovoltaic cell board and is higher than 3cm, the condition of second operating condition is that snow thickness sensor detects the snow thickness on the photovoltaic cell board and is less than 3cm, and temperature sensor detects the temperature that photovoltaic cell board is higher than 0 ℃.
Compared with the prior art, the method has the following technical effects:
1. this application utilizes photovoltaic cell board can be the characteristic of electric energy with solar energy conversion, when need not clear away snow, at controller control photovoltaic cell board can carry out normal photovoltaic power generation to electric power system transmission electric energy, when needing to clear away snow, under controller control, electric power system is right photovoltaic cell board transmission electric energy, so that photovoltaic cell board generates heat and clears away snow. The snow removing method for self-heating by adopting the electric energy provided by the photovoltaic cell panel has the advantages of simple device, no need of manual operation and lower implementation cost.
2. With photovoltaic cell board connection sensor in this application, can in time detect the condition that photovoltaic cell board surface is covered by snow, remove the snow automatically, improve solar photovoltaic power generation's efficiency to save the human cost, reduce the potential safety hazard.
3. Photovoltaic cell board in this application can melt the snow and make snow follow photovoltaic cell board surface landing through self-heating, has avoided artifical or mechanical snow removing can damage photovoltaic cell board's risk.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for automatically removing snow from a photovoltaic cell panel according to an embodiment of the present disclosure;
FIG. 2 is a diagram illustrating an exemplary method for automatically removing accumulated snow from a photovoltaic panel using a DC power system;
FIG. 3 is a diagram illustrating an exemplary method for automatically removing accumulated snow from a photovoltaic panel using an AC power system;
main element number description: heating device 1, photovoltaic cell panel 11, heating belt 12, snow thickness sensor 2, temperature sensor 3, controller 4, battery 5, dc-to-ac converter 6, alternating current electric power system 7
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art without any inventive work based on the embodiments in the present application shall fall within the protection scope of the present application.
As shown in fig. 1, an embodiment of the present application provides an apparatus for automatically removing snow from a photovoltaic cell panel, including a heating device 1, a snow thickness sensor 2, a temperature sensor 3 and a controller 4, wherein the heating device 1 includes a photovoltaic cell panel 11, the snow thickness sensor 2 is disposed in a vertical direction of the photovoltaic cell panel 11 for detecting a snow thickness on the photovoltaic cell panel 11, the temperature sensor 3 is disposed on the photovoltaic cell panel 11 for detecting a temperature of the photovoltaic cell panel 11, and the controller 4 is connected to the snow thickness sensor 2 and the temperature sensor 3 for determining an operating state according to a detection value of the snow thickness sensor 2 and/or a detection value of the temperature sensor 3.
According to the detection value of the accumulated snow thickness sensor 2 and/or the detection value of the temperature sensor 3, the power system and the photovoltaic cell panel 11 are in two working states, in the first working state, the controller 4 controls the power system to transmit electric energy to the photovoltaic cell panel 11, so that the photovoltaic cell panel 11 generates heat to remove accumulated snow, and in the second working state, the controller 4 controls the photovoltaic cell panel 11 to transmit electric energy to the power system, so that normal photovoltaic power generation is performed.
The heating device 1 further comprises a heating belt 12, and the heating belt 12 is arranged at the bottom of the frame of the photovoltaic cell panel 11. Because the frame of photovoltaic cell board 11 is mostly the aluminum alloy frame, and inside no battery piece generates heat, when photovoltaic cell board 11 generates heat and removes the snow, the snow on the frame of photovoltaic cell board 11 freezes easily and adheres on the frame, has increaseed the resistance of whole snow-collecting layer landing on photovoltaic cell board 11 for the snow removal degree of difficulty increases. Consequently, set up heating band 12 in photovoltaic cell panel 11's frame bottom, heating band 12 is parallelly connected with photovoltaic cell panel 11, consequently, under first operating condition, 4 control electric power system of controller transmit the electric energy to photovoltaic cell panel 11 and heating band 12 simultaneously, heat photovoltaic cell panel 11 and photovoltaic cell panel 11's frame, can accelerate the snow landing.
The condition of first operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is higher than 3cm, the condition of second operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is less than 3cm, and temperature sensor 3 detects the temperature that photovoltaic cell board 11 and is higher than 0 ℃.
The power system comprises a direct current power system and/or an alternating current power system.
Because photovoltaic cell panel 11 can be with solar energy conversion electric energy, snow thickness on photovoltaic cell panel 11 is less than 3cm, and when temperature sensor 3 detected that the temperature of photovoltaic cell panel 11 is higher than 0 ℃, photovoltaic cell panel 11 is in normal operating condition, and photovoltaic cell panel 11 provides the direct current for electric power system, charges for battery 5, and electric power system at this moment is direct current electric power system. The direct current power system is a storage battery 5, and the storage battery 5 is respectively connected with a photovoltaic cell panel 11, a heating belt 12 and a controller 4.
When the accumulated snow thickness sensor 2 detects that the thickness of accumulated snow on the photovoltaic cell panel 11 is higher than 3cm, the automatic snow removing condition is met, the storage battery 5 and the photovoltaic cell panel 11 are in a first working state, and the controller 4 sends out a signal to enable the storage battery 5 to discharge electricity to supply power to the solar cell panel 11 and the heating belt 12, so that the storage battery 5 is used for heating the photovoltaic cell panel 11 and the heating belt 12 to start snow removal;
when the thickness of the accumulated snow on the photovoltaic cell panel 11 is lower than 3cm, and the temperature sensor 3 detects that the temperature of the photovoltaic cell panel 11 is higher than 0 ℃, the automatic snow removing condition is not met, the storage battery 5 and the photovoltaic cell panel 11 are in the second working state, and under the control of the controller 4, the photovoltaic cell panel 11 performs normal photovoltaic power generation work, converts solar energy into electric energy and charges the storage battery 5.
The photovoltaic panel 11 provides direct current power for the power system, and the alternating current power system 7 needs to convert the direct current power generated by the photovoltaic panel 11 into alternating current power for the user to use. The ac power system 7 may be various types of ac grids. The alternating current power system 7 is connected with a photovoltaic cell panel 11 and a heating belt 12 through a rectification inverter circuit.
When the accumulated snow thickness sensor 2 detects that the thickness of accumulated snow on the photovoltaic cell panel 11 is higher than 3cm, the automatic snow removing condition is met, the alternating current power system 7 is in a first working state, the controller 4 controls the rectification inverter circuit to run reversely, the rectification inverter circuit is used as a rectifier to convert alternating current of the alternating current power system 7 into direct current and then transmit the direct current to the photovoltaic cell panel 11 and the heating belt 12, the photovoltaic cell panel 11 and the heating belt 12 are heated, and automatic snow removing is started;
when the accumulated snow thickness sensor 2 detects that the thickness of accumulated snow on the photovoltaic cell panel 11 is lower than 3cm and the temperature sensor 3 detects that the temperature of the photovoltaic cell panel 11 is higher than 0 ℃, the automatic snow removing condition is not met, the inverter 6 and the alternating current power system 7 are in a second working state, the controller 4 controls the rectification inverter circuit to operate in the forward direction and serves as the inverter 6 to convert direct current of the photovoltaic cell panel 11 into alternating current and then transmit the alternating current to the alternating current power system 7.
The photovoltaic cell panel 11 is arranged inclined with respect to the horizontal plane.
The method for automatically removing the accumulated snow on the photovoltaic cell panel 11 adopts the device for automatically removing the accumulated snow on the photovoltaic cell panel 11, so that the surface temperature of the photovoltaic cell panel 11 is increased, and the accumulated snow on the photovoltaic cell panel 11 is automatically removed. Since the power system includes a dc power system and/or an ac power system, the method for automatically removing snow from the photovoltaic cell panel 11 is described in two embodiments.
The first embodiment is as follows:
the snow thickness sensor 2 is arranged in the vertical direction of the photovoltaic cell panel 11 and used for detecting the snow thickness on the photovoltaic cell panel 11, the temperature sensor 3 is arranged on the photovoltaic cell panel 11 and used for detecting the temperature of the photovoltaic cell panel 11, and the controller 4 is connected with the snow thickness sensor 2 and the temperature sensor 3 and used for determining the working state according to the detection value of the snow thickness sensor 2 and/or the detection value of the temperature sensor 3. The direct current power system is a storage battery 5, and the storage battery 5 is respectively connected with a photovoltaic cell panel 11, a heating belt 12 and a controller 4.
Under the condition of power supply of a direct current power system, the method for automatically removing accumulated snow from the photovoltaic cell panel 11 comprises the following steps:
the snow thickness sensor 2 is used for detecting the snow thickness on the photovoltaic cell panel 11, and the temperature sensor 3 is used for detecting the temperature of the photovoltaic cell panel 11;
determining the working state according to the detection value of the snow thickness sensor 2 and/or the detection value of the temperature sensor 3;
the condition of first operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is higher than 3cm, the condition of second operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is less than 3cm, and temperature sensor 3 detects the temperature that photovoltaic cell board 11 and is higher than 0 ℃.
In a first working state, the controller 4 sends a signal to control the storage battery 5 to transmit electric energy to the photovoltaic cell panel 11, so that the photovoltaic cell panel 11 generates heat to remove accumulated snow; in a second working state, the controller 4 controls the photovoltaic cell panel 11 to transmit electric energy to the storage battery 5 so as to perform normal photovoltaic power generation.
Example two:
the snow thickness sensor 2 is arranged in the vertical direction of the photovoltaic cell panel 11 and used for detecting the snow thickness on the photovoltaic cell panel 11, the temperature sensor 3 is arranged on the photovoltaic cell panel 11 and used for detecting the temperature of the photovoltaic cell panel 11, and the controller 4 is connected with the snow thickness sensor 2 and the temperature sensor 3 and used for determining the working state according to the detection value of the snow thickness sensor 2 and/or the detection value of the temperature sensor 3. The ac power system 7 may be various types of ac grids. Under the condition of power supply of the alternating current power system 7, the alternating current power system 7 is connected with a photovoltaic cell panel 11 and a heating belt 12 through a rectification inverter circuit.
Under the condition of power supply of the alternating current power system 7, the method for automatically removing accumulated snow from the photovoltaic cell panel 11 comprises the following steps:
the snow thickness sensor 2 is used for detecting the snow thickness on the photovoltaic cell panel 11, and the temperature sensor 3 is used for detecting the temperature of the photovoltaic cell panel 11;
determining the working state according to the detection value of the snow thickness sensor 2 and/or the detection value of the temperature sensor 3;
the condition of first operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is higher than 3cm, the condition of second operating condition is that snow thickness sensor 2 detects the snow thickness on photovoltaic cell board 11 and is less than 3cm, and temperature sensor 3 detects the temperature that photovoltaic cell board 11 and is higher than 0 ℃.
In a first working state, the controller 4 controls the rectification inverter circuit to reversely operate, and the rectification inverter circuit is used as a rectifier to convert alternating current of the alternating current power system into direct current and transmit the direct current to the photovoltaic cell panel 11 and the heating belt 12, so that accumulated snow on the photovoltaic cell panel 11 is removed; in a second working state, the controller 4 controls the rectification inverter circuit to operate in a forward direction, and the direct current of the photovoltaic cell panel 11 is converted into alternating current by the inverter 6 and then transmitted to the alternating current power system 7 to supply power to the alternating current power system 7.
The operating principle of photovoltaic cell panel 11 in this application: photovoltaic cells can be used as both power generation devices (power sources) and loads, depending on the structural characteristics of the p-n junction within the photovoltaic cell. When a certain forward voltage is applied to the photovoltaic cell, stable unidirectional conduction current can be formed inside the cell, the photovoltaic cell is equivalent to a load, and due to the energy level difference of a p-n junction and the existence of the resistance of a semiconductor region, heat can be generated in the semiconductor region inside a photovoltaic module when electrons pass through, so that the surface temperature of the photovoltaic cell plate is increased. When the thickness of the snow on the photovoltaic cell panel reaches the preset minimum snow removing thickness, the automatic snow removing condition is met, and a certain forward voltage is applied to the photovoltaic cell panel by utilizing the load characteristic of the photovoltaic cell, so that the surface temperature of the photovoltaic cell panel is increased to melt the snow bottom. At the interface of the photovoltaic cell panel 11 and the snow layer, snow water formed by heating and melting has a lubricating effect, so that the whole snow layer slides down from the photovoltaic cell panel 11 arranged at a certain inclination angle, and the snow removing purpose is achieved.
The present application has been described in detail with reference to the embodiments shown in the drawings, and various modifications thereof can be made by those skilled in the art based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the present application, which are intended to be covered by the following claims.
Claims (8)
1. The device for automatically removing the accumulated snow on the photovoltaic cell panel is characterized by comprising a heating device, a controller, an accumulated snow thickness sensor and a temperature sensor, wherein the heating device comprises the photovoltaic cell panel, the photovoltaic cell panel is obliquely arranged, the accumulated snow thickness sensor is arranged in the vertical direction of the photovoltaic cell panel and is used for detecting the accumulated snow thickness on the photovoltaic cell panel, the temperature sensor is arranged on the photovoltaic cell panel and is used for detecting the temperature on the surface of the photovoltaic cell panel, the controller is connected with the accumulated snow thickness sensor and the temperature sensor and is used for determining the working state according to the detection value of the accumulated snow thickness sensor and/or the detection value of the temperature sensor, in the first working state, the controller controls an electric power system to transmit electric energy to the photovoltaic cell panel so that the photovoltaic cell panel generates heat to remove the accumulated snow, the first working state is that the accumulated snow thickness sensor detects that the thickness of accumulated snow on the photovoltaic cell panel is higher than 3 cm; under the second operating condition, the controller controls photovoltaic cell board transmits the electric energy to electric power system to carry out normal photovoltaic power generation, the condition of second operating condition is that snow thickness sensor detects the snow thickness on the photovoltaic cell board and is less than 3cm, and temperature sensor detects the temperature that photovoltaic cell board is higher than 0 ℃.
2. The device for automatically removing accumulated snow from a photovoltaic cell panel according to claim 1, wherein the heating device further comprises a heating belt, the heating belt is disposed on a frame of the photovoltaic cell panel, and in the first operating state, the controller further controls a power system to transmit power to the heating belt, so that the heating belt generates heat to remove accumulated snow.
3. The automatic snow removal device for photovoltaic panels according to claim 1 or 2, characterized in that said electric system comprises a direct current electric system and/or an alternating current electric system.
4. The device for automatically removing accumulated snow on the photovoltaic cell panel as claimed in claim 3, wherein the DC power system is a storage battery, and the storage battery is respectively connected with the photovoltaic cell panel, the heating belt and the controller.
5. The device for automatically removing accumulated snow from the photovoltaic cell panel according to claim 3, wherein the alternating current power system is connected to the heating device through a rectification inverter circuit, in a first operating state, the controller controls the rectification inverter circuit to operate in a reverse direction to convert alternating current of the alternating current power system into direct current as a rectifier and transmit the direct current to the heating device, and in a second operating state, the controller controls the rectification inverter circuit to operate in a forward direction to convert direct current of the photovoltaic cell panel into alternating current as an inverter and transmit the alternating current to the alternating current power system.
6. A method for automatically removing snow from a photovoltaic cell panel, comprising an apparatus for automatically removing snow from a photovoltaic cell panel according to any one of claims 1 to 5, characterized in that it comprises the following steps:
detecting the thickness of snow on the photovoltaic cell panel through a snow thickness sensor, and detecting the temperature of the photovoltaic cell panel through a temperature sensor;
determining a working state according to the detection value of the snow thickness sensor and/or the detection value of the temperature sensor;
under the first operating condition, the controller control electric power system is right photovoltaic cell board transmission electric energy, so that photovoltaic cell board generates heat and clears away the snow, under the second operating condition, the controller control photovoltaic cell board is to electric power system transmission electric energy to carry out normal photovoltaic power generation.
7. The automatic snow cover removing method for photovoltaic cell panels as claimed in claim 6, characterized in that said electric system comprises a direct current electric system and/or an alternating current electric system;
the direct-current power system is a storage battery, and the storage battery is respectively connected with a photovoltaic cell panel, a heating belt and a controller;
the alternating current power system is connected with the heating device through the rectification inverter circuit, in a first working state, the controller controls the rectification inverter circuit to run reversely and serve as a rectifier to convert alternating current of the alternating current power system into direct current to be transmitted to the heating device, and in a second working state, the controller controls the rectification inverter circuit to run forwards and serve as an inverter to convert direct current of the photovoltaic cell panel into alternating current to be transmitted to the alternating current power system.
8. The method according to claim 6, characterized in that the first operating condition is a condition of the snow thickness sensor detecting a snow thickness above the photovoltaic panel higher than 3cm, the second operating condition is a condition of the snow thickness sensor detecting a snow thickness below 3cm and the temperature sensor detecting a temperature above 0 ℃.
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| CN111112270B (en) * | 2019-12-20 | 2022-07-15 | 杭州舜海光伏科技有限公司 | Photovoltaic intelligent cleaning control system and method based on snow quantity sensing |
| CN111181484A (en) * | 2020-01-07 | 2020-05-19 | 新疆中兴能源有限公司 | Device for heating photovoltaic module with high efficiency |
| CN112039427B (en) * | 2020-08-27 | 2022-07-22 | 平潭煜想时代科技有限公司 | Solar collector power generation method and solar collector |
| CN112054765B (en) * | 2020-08-27 | 2023-01-31 | 平潭煜想时代科技有限公司 | Solar collector power generation method, solar collector and computer equipment |
| CN112212212B (en) * | 2020-09-30 | 2021-04-06 | 佛山市天然气高压管网有限公司 | Gravity type spring snow removing device |
| CN112600512B (en) * | 2020-12-23 | 2022-06-17 | 上海新倬壮印刷科技有限公司 | Photovoltaic cell board automatic clear snow's device |
| CN112737497B (en) * | 2020-12-29 | 2022-04-01 | 黄淮学院 | Solar cell applying nanofibers and using method |
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| CN202259327U (en) * | 2011-09-15 | 2012-05-30 | 上海硕能实业有限公司 | Solar battery assembly with heating wire border |
| CN204156540U (en) * | 2014-11-13 | 2015-02-11 | 株洲变流技术国家工程研究中心有限公司 | A kind of solar module ice melting system |
| JP2016111861A (en) * | 2014-12-09 | 2016-06-20 | 旭硝子株式会社 | Photovoltaic power generation device |
| CN105945007B (en) * | 2016-07-01 | 2017-12-08 | 西南科技大学 | A kind of solar cell pole plate automatic cleaning apparatus |
| CN106571774B (en) * | 2016-10-28 | 2018-12-28 | 阳光电源股份有限公司 | A kind of solar panel snow-smelting method, controller and photovoltaic generating system |
| CN106788195A (en) * | 2017-01-11 | 2017-05-31 | 上海久能能源科技发展有限公司 | A kind of photovoltaic power station system with snow melting function |
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