CN103595341A - Method and device for removing snow on solar crystalline silicon photovoltaic module - Google Patents
Method and device for removing snow on solar crystalline silicon photovoltaic module Download PDFInfo
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Abstract
The invention belongs to the technical field of solar devices, in particular to a method and device for removing snow on a solar crystalline silicon photovoltaic module. The device for removing snow on the solar crystalline silicon photovoltaic module comprises a heating film, a storage battery, a controller and a photosensitive sensor. The storage battery supplies power to the photosensitive sensor, the controller and the heating film. The photosensitive sensor detects the external environment and outputs an electrical signal to a sensor control module of the controller. A current detecting module in the controller detects the current generated by the solar crystalline silicon photovoltaic module, wherein (1) when the current is larger than or equal to a set value, it is confirmed that the surface of the solar crystalline silicon photovoltaic module is not covered by a snow layer, and snow removal is stopped, (2) if the current is smaller than the set value, it is confirmed that the surface of the solar crystalline silicon photovoltaic module is covered by the snow layer, and the current detecting module sends a signal to a heating film control module of the controller. The photosensitive sensor and the controller cooperate to accurately judge whether the surface of the solar crystalline silicon photovoltaic module is covered by the snow layer, judgment is accurate, the work efficiency of the heating film is high, extra power consumption is avoided, and the service life of the solar crystalline silicon photovoltaic module is prolonged.
Description
Technical field
The invention belongs to technical field of solar, refer in particular to a kind of solar energy Crystalline Silicon PV Module automatic snow-removing method and snow-removing device.
Background technology
Along with the attention of the mankind to new energy development application, solar energy crystalline silicon photovoltaic generating body ties up to new energy field to be developed rapidly, and the application of solar energy crystalline silicon photovoltaic is also more and more wider.The solar panels that are arranged on high latitude area are often subject to the covering of ice and snow, these regional temperature are lower, ice dissolution chronic, because solar panels are for a long time by snow and ice cover, solar street light and can not working in time from net type solar photovoltaic generation system, power generation performance declines, and makes support bear serious ice and snow load.
Application number is 201110405314.6, publication No. be CN102446984A public announcement of a patent application a kind of solar components automatic snow-removing device and control method thereof, this technology comprises heating film, heating film is attached on the backboard of solar components, at heating film, by batteries, powered, the controller of heating film is by connecting Ethernet by reflector, reflector receives meteorological data by Ethernet, according to meteorological data prediction snow or work that the freezing period is controlled heating film removes the snow, this technology exists standby energy consumption high, the shortcoming that at all cannot work in no signal region, and there is not necessarily accurate this natural defect of weather forecast in this technology.
In industry, also exist a kind of mechanical structure of similar vehicle wiper to strike off the ice and snow layer on solar panels surface, yet when ice and snow layer is thicker, this mechanical mechanism cannot be worked at all, usually there will be the phenomenon of burn-down of electric motor.
Summary of the invention
The object of this invention is to provide a kind of simple in structurely, safe and reliable, can carry out accurately automatic snow, the solar energy Crystalline Silicon PV Module automatic snow-removing device of long service life, and the automatic snow-removing method based on this device.
The object of the present invention is achieved like this:
Solar energy Crystalline Silicon PV Module automatic snow-removing device, comprises
Heating film, it is attached on the backboard of solar energy Crystalline Silicon PV Module, when access electric current, generates heat and then thaws ice and snow;
Storage battery, it provides electric current for heating film and controller;
Controller, it controls the current switching between storage battery and heating film,
The below of described backboard is provided with the light-inductive device of the luminous intensity in induced environment, and storage battery is the power supply of light-inductive device, on the circuit board of described controller, is provided with
Inductor control module, the signal of telecommunication that it sends for receiving light-inductive device, and send and control signal to current detection module;
Current detection module, the size of current that it sends for detection of solar energy Crystalline Silicon PV Module, and send and control signal to heating film control module;
Heating film control module, it is for controlling heating film work;
Charging module, it is filled with storage battery for the electric current that solar energy Crystalline Silicon PV Module is sent.
Preferably, on described backboard, be coated with glassy layer, between glassy layer and backboard, be provided with described heating film.
Preferably, described inclined back plate setting, angle >=35 degree of itself and horizontal plane.
Preferably, described glassy layer is toughened glass layer.
Preferably, described heating film is carbon trichite hotting mask.
A Crystalline Silicon PV Module automatic snow-removing method, comprises the following steps,
(1) storage battery is to light-inductive device, controller and heating film power supply, described storage battery to the circuit of heating film in normally off;
(2) light-inductive device detects external environment condition, in intensity of illumination, meets and sets while requiring output electrical signals to the inductor control module of controller;
(3) electric current that the current detection module in controller sends solar energy Crystalline Silicon PV Module detects,
1. when the value of electric current >=setting, the surface that is judged as solar energy Crystalline Silicon PV Module does not cover ice and snow layer, and snow removing stops;
2. when value that electric current < sets, the surface coverage that is judged as solar energy Crystalline Silicon PV Module has ice and snow layer, and current detection module sends signal to the heating film control module of controller;
(4) heating film control module is controlled storage battery to the circuit turn-on of heating film, heating film work N minute;
(5) get back in step (3).
In described step (4), within N minute, be 10-20 minute.
The present invention compared to existing technology outstanding and useful technique effect is:
The below of backboard of the present invention is provided with the light-inductive device of the luminous intensity in induced environment, controller is electrically connected to light-inductive device, by photoreceiver, receive illumination signal and judge whether extraneous intensity of illumination meets the minimum startup standard of the solar energy Crystalline Silicon PV Module of setting, when intensity of illumination meets standard, but when the electric current that solar energy Crystalline Silicon PV Module is sent is not up to standard, controller is controlled the heating film heating layer that thaws ice and snow, in this design, light-inductive device is arranged on the below of backboard and can avoids it by snow and ice cover, light-inductive device and controller cooperation judge whether to be covered by ice and snow layer accurately, its accuracy of judgement, the operating efficiency of heating film is high, avoid unnecessary power consumption, extended useful life,
On backboard of the present invention, be coated with glassy layer, between glassy layer and backboard, be provided with described heating film; Glassy layer is toughened glass layer, heating film is carbon trichite hotting mask, carbon trichite hotting mask passes to heat energy to cover its surperficial toughened glass layer in the mode of infrared radiation and conduction, because toughened glass is undesirable heat conductor, the snow covering on assembly is more easily melted.Thereby make the thermal radiation (far infrared) that carbon trichite hotting mask produces mostly between snow deposit bottom and toughened glass, carry out heat exchange, better, between ice and snow layer bottom and toughened glass, form molten of frozen water faster, be easy to both separated;
Inclined back plate setting of the present invention, angle >=35 degree of itself and horizontal plane, this design makes to form between ice and snow layer bottom and toughened glass after molten of frozen water, can depart from time toughened glass by ice and snow layer.
Accompanying drawing explanation
Fig. 1 is the structure diagram of solar energy Crystalline Silicon PV Module automatic snow-removing device.
Fig. 2 is the fundamental diagram of solar energy Crystalline Silicon PV Module automatic snow-removing device.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, referring to Fig. 1-2:
Solar energy Crystalline Silicon PV Module automatic snow-removing device, comprises
Heating film 2, it is attached on the backboard 3 of solar energy Crystalline Silicon PV Module, when access electric current, generates heat and then thaws ice and snow;
Storage battery, it provides electric current for heating film 2 and controller;
Controller, it controls the current switching between storage battery and heating film 2,
The below of described backboard is provided with the light-inductive device 5 of the luminous intensity in induced environment, and light-inductive device 5 is arranged in vertical rod 4, and storage battery is the power supply of light-inductive device, on the circuit board of described controller, is provided with
Inductor control module, the signal of telecommunication that it sends for receiving light-inductive device, and send and control signal to current detection module;
Current detection module, the size of current that it sends for detection of solar energy Crystalline Silicon PV Module, and send and control signal to heating film control module;
Heating film control module, it is for controlling heating film work;
Charging module, it is filled with storage battery for the electric current that solar energy Crystalline Silicon PV Module is sent.
Preferably, on described backboard, be coated with glassy layer 1, between glassy layer 1 and backboard 3, be provided with described heating film 2.
Preferably, described backboard 3 is obliquely installed, angle >=35 degree of itself and horizontal plane.
Preferably, described glassy layer 1 is toughened glass layer.
Preferably, described heating film is carbon trichite hotting mask.Carbon trichite hotting mask vacuum lamination together with semi-finished product assembly, is affixed on backboard it closely.
The operation principle of this device
1) snow, illumination is when weak (and night): in solar energy Crystalline Silicon PV Module, covering snow can not effectively generate electricity, light-inductive device receives illumination intensity signal, controller judges solar energy Crystalline Silicon PV Module and light-inductive device, judgment result is that solar energy Crystalline Silicon PV Module is without effective current, a little less than photoreceiver receives illumination signal and is, controller not starting storage battery is the power supply of carbon trichite hotting mask, does not now generate heat.
2) intensity of illumination is high, when assembly has snow cover: covering snow in solar energy Crystalline Silicon PV Module can not effectively generate electricity, light-inductive device receives illumination intensity signal, controller judges assembly and light-inductive device, judgment result is that assembly is without effective current, it is strong that photoreceiver receives illumination signal, and being programmed to controller is that starting storage battery is the power supply of carbon trichite hotting mask, now heating.In certain 10-20 minutes, (with ambient temperature at that time, be as the criterion) to cover between snow deposit bottom and assembly glass and form molten of frozen water, in high latitude area, assembly setting angle generally can be greater than 35 degree, after the molten face of frozen water acquires a certain degree, cover stiction between snow deposit bottom and assembly glass and be less than self gravitation, thereby make its landing.After landing, assembly effectively generates electricity, light-inductive device receives illumination intensity signal, controller judges assembly and light-inductive device, judgment result is that assembly has effective current, it is strong that photoreceiver receives illumination signal, it is the power supply of carbon trichite hotting mask that controller stops storage battery, and the current generated charging module through controller of solar energy Crystalline Silicon PV Module is to charge in batteries.
Carbon trichite hotting mask operation principle: produce electric field under direct current effect, carbon molecule in carbon crystalline substance and carbon micel are under the initiation excitation of electric field, in hot assembly, produce " Brownian movement " and produce heat energy by the mutual shock between carbon molecule and micel, friction, and add far infrared transmission agent, mainly with wavelength control at the mode uniform plane eradiation of the far infrared of 8-14 micron out, effectively the total transfer ratio of electrical heat energy reaches more than 98% heat.Electric field heating key property: the radial current of material internal is minimum, has guaranteed the fail safe of using, and the while can drop to electrical loss again minimum, and has greatly extended the useful life of material.Carbon crystal heating modules utilizes this specific character of this element, in energising tens seconds, heater surface temperature raises rapidly from ambient temperature, and heat energy is passed to the heat insulating reflecting material that covers its surface covering and the back side thereof in the mode of infrared radiation and conduction, heat insulating reflecting material constantly reflexes to the heated object in space infrared radiation heat energy, this heater heats its surperficial covering in heat conducting mode again simultaneously, blanket surface temperature is constantly raise, after 2-4 minute, between heater and covering, reach balance of heat, with stationary temperature, externally conduct heating.The feature such as that this product has is efficient, energy-conservation, economic, pollution-free, the life-span is long and temperature is controlled.Because assembly surface is toughened glass, be undesirable heat conductor, carbon trichite hotting mask has powerful radiant heat transfer function, and infrared transfer ratio is 60%, and the snow covering on assembly is more easily melted.New accumulated snow has heat insulation function, is that air can creep in accumulated snow hole because the porosity between snowflake is very high, and air is hot non-conductor, thereby accumulated snow has heat insulation function.Just the snow of landing can reflect more than 90% light, thereby makes the thermal radiation (far infrared) that carbon trichite hotting mask produces mostly between snow deposit bottom and assembly glass, carry out heat exchange.
Controller operation principle:
1. when be the weather such as cloudy day, rainy day, fine day daytime, on photovoltaic module, during without snow cover, have enough voltage and current generations on photovoltaic module, light-inductive device reception illumination intensity signal is extremely strong, and controller is to charge in batteries, and carbon trichite hotting mask is not worked.
2. when night, no matter while having or not snow cover on photovoltaic module, on photovoltaic module, without enough voltage and currents, produce, a little less than light-inductive device receives illumination intensity pickup electrode, starting storage battery is not to the power supply of carbon trichite hotting mask for controller, and carbon trichite hotting mask is not worked.
3. when be fine day daytime, while having snow cover on photovoltaic module, on photovoltaic module, without enough voltage and currents, produce, it is extremely strong that light-inductive device receives illumination intensity signal, and controller starting storage battery is powered to carbon trichite hotting mask, the work of carbon trichite hotting mask.After removing covering snow deposit completely, on photovoltaic assembly, there are enough voltage and currents to produce, light-inductive device reception illumination intensity signal is extremely strong, and controller is to charge in batteries, and carbon trichite hotting mask is not worked.
The below of backboard of the present invention is provided with the light-inductive device of the luminous intensity in induced environment, controller is electrically connected to light-inductive device, by photoreceiver, receive illumination signal and judge whether extraneous intensity of illumination meets the minimum startup standard of the solar energy Crystalline Silicon PV Module of setting, when intensity of illumination meets standard, but when the electric current that solar energy Crystalline Silicon PV Module is sent is not up to standard, controller is controlled the heating film heating layer that thaws ice and snow, in this design, light-inductive device is arranged on the below of backboard and can avoids it by snow and ice cover, light-inductive device and controller cooperation judge whether to be covered by ice and snow layer accurately, its accuracy of judgement, the operating efficiency of heating film is high, avoid unnecessary power consumption, extended useful life,
On backboard of the present invention, be coated with glassy layer, between glassy layer and backboard, be provided with described heating film; Glassy layer is toughened glass layer, heating film is carbon trichite hotting mask, carbon trichite hotting mask passes to heat energy to cover its surperficial toughened glass layer in the mode of infrared radiation and conduction, because toughened glass is undesirable heat conductor, the snow covering on assembly is more easily melted.Thereby make the thermal radiation (far infrared) that carbon trichite hotting mask produces mostly between snow deposit bottom and toughened glass, carry out heat exchange, better, between ice and snow layer bottom and toughened glass, form molten of frozen water faster, be easy to both separated;
Inclined back plate setting of the present invention, angle >=35 degree of itself and horizontal plane, this design makes to form between ice and snow layer bottom and toughened glass after molten of frozen water, can depart from time toughened glass by ice and snow layer.
A Crystalline Silicon PV Module automatic snow-removing method, comprises the following steps,
(1) storage battery is to light-inductive device, controller and heating film power supply, described storage battery to the circuit of heating film in normally off;
(2) light-inductive device detects external environment condition, in intensity of illumination, meets and sets while requiring output electrical signals to the inductor control module of controller;
(3) electric current that the current detection module in controller sends solar energy Crystalline Silicon PV Module detects,
1. when the value of electric current >=setting, the surface that is judged as solar energy Crystalline Silicon PV Module does not cover ice and snow layer, and snow removing stops;
2. when value that electric current < sets, the surface coverage that is judged as solar energy Crystalline Silicon PV Module has ice and snow layer, and current detection module sends signal to the heating film control module of controller;
(4) heating film control module is controlled storage battery to the circuit turn-on of heating film, heating film work N minute, and this time need to suit measures to local conditions, and is generally 10-20 minute;
(5) get back in step (3).
It should be noted that, in this method and device, be to adopt light-inductive device after qualified luminous intensity being detected, then send the signal of telecommunication and wake controller up, this design electrical energy saving to greatest extent, as a kind of conversion,
Can be designed to light-inductive device and controller always in state of activation, its power consumption is larger;
Or, being designed to light-inductive device in dormancy, controller is in state of activation, and current detection module interval in controller wakes up once for X minute automatically, when the value of electric current >=setting being detected, then sends signal and wakes light-inductive device up;
Certainly, these designs are the design's the bad design of change or equivalent arrangements, all should be encompassed in the design's protection range.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalences of doing according to structure of the present invention, shape, principle change, within all should being covered by protection scope of the present invention.
Claims (7)
1. solar energy Crystalline Silicon PV Module automatic snow-removing device, comprises
Heating film, it is attached on the backboard of solar energy Crystalline Silicon PV Module, when access electric current, generates heat and then thaws ice and snow;
Storage battery, it provides electric current for heating film and controller;
Controller, it controls the current switching between storage battery and heating film,
It is characterized in that: the below of described backboard is provided with the light-inductive device of the luminous intensity in induced environment, storage battery is the power supply of light-inductive device, on the circuit board of described controller, is provided with
Inductor control module, the signal of telecommunication that it sends for receiving light-inductive device, and send and control signal to current detection module;
Current detection module, the size of current that it sends for detection of solar energy Crystalline Silicon PV Module, and send and control signal to heating film control module;
Heating film control module, it is for controlling heating film work;
Charging module, it is filled with storage battery for the electric current that solar energy Crystalline Silicon PV Module is sent.
2. solar energy Crystalline Silicon PV Module automatic snow-removing device according to claim 1, is characterized in that: on described backboard, be coated with glassy layer, be provided with described heating film between glassy layer and backboard.
3. solar energy Crystalline Silicon PV Module automatic snow-removing device according to claim 2, is characterized in that: described inclined back plate setting, angle >=35 degree of itself and horizontal plane.
4. solar energy Crystalline Silicon PV Module automatic snow-removing device according to claim 3, is characterized in that: described glassy layer is toughened glass layer.
5. solar energy Crystalline Silicon PV Module automatic snow-removing device according to claim 4, is characterized in that: described heating film is carbon trichite hotting mask.
6. a solar energy Crystalline Silicon PV Module automatic snow-removing method, is characterized in that: comprises the following steps,
(1) storage battery is to light-inductive device, controller and heating film power supply, described storage battery to the circuit of heating film in normally off;
(2) light-inductive device detects external environment condition, in intensity of illumination, meets and sets while requiring output electrical signals to the inductor control module of controller;
(3) electric current that the current detection module in controller sends solar energy Crystalline Silicon PV Module detects,
1. when the value of electric current >=setting, the surface that is judged as solar energy Crystalline Silicon PV Module does not cover ice and snow layer, and snow removing stops;
2. when value that electric current < sets, the surface coverage that is judged as solar energy Crystalline Silicon PV Module has ice and snow layer, and current detection module sends signal to the heating film control module of controller;
(4) heating film control module is controlled storage battery to the circuit turn-on of heating film, heating film work N minute;
(5) get back in step (3).
7. a kind of solar energy Crystalline Silicon PV Module automatic snow-removing method according to claim 6, is characterized in that: in described step (4), within N minute, be 10-20 minute.
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| CN103825544A (en) * | 2014-03-21 | 2014-05-28 | 姚登祥 | Novel automatic defrosting and snow-removing photovoltaic module |
| CN106094056A (en) * | 2016-06-16 | 2016-11-09 | 扬州大学 | The energy-saving weather monitoring instrument of a kind of automatic dust removing defrosting |
| CN108166408A (en) * | 2018-01-19 | 2018-06-15 | 长安大学 | A kind of solar energy snow melt ice-melt LED railway spikes |
| WO2019007205A1 (en) * | 2017-07-06 | 2019-01-10 | 北京铂阳顶荣光伏科技有限公司 | Heating control device for roadway power generation assembly |
| CN109742168A (en) * | 2018-12-20 | 2019-05-10 | 中国电子科技集团公司第四十八研究所 | A kind of photovoltaic module for polar region environment |
| CN110098793A (en) * | 2019-04-28 | 2019-08-06 | 西安工程大学 | Based on the photovoltaic battery panel of heating carbon fiber from deicing device and control method |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110098793A (en) * | 2019-04-28 | 2019-08-06 | 西安工程大学 | Based on the photovoltaic battery panel of heating carbon fiber from deicing device and control method |
| 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 |
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