CN204156540U - A kind of solar module ice melting system - Google Patents
A kind of solar module ice melting system Download PDFInfo
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- CN204156540U CN204156540U CN201420674921.1U CN201420674921U CN204156540U CN 204156540 U CN204156540 U CN 204156540U CN 201420674921 U CN201420674921 U CN 201420674921U CN 204156540 U CN204156540 U CN 204156540U
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Abstract
The utility model discloses a kind of solar module ice melting system, comprising: the photovoltaic cell component, photovoltaic DC-to-AC converter, power transformer and the electrical network that are connected successively.Photovoltaic DC-to-AC converter adopts the inverter of bi-directional energy flow structure, and when photovoltaic DC-to-AC converter works in ice-melt mode, the energy absorbed from electrical network transfers to photovoltaic cell component through power transformer, photovoltaic DC-to-AC converter successively.Now, photovoltaic cell component, as load, realizes the ice-melt on photovoltaic cell component surface by the mode absorbing energy heating.The utility model can solve existing ice melting system need increase extra investment and practicality is not strong, if run into intermittent sleety weather simultaneously, need repeatedly to transform and recover, the manpower of at substantial, the generating efficiency improving photovoltaic generating system is also had to the technical problem of some effects.
Description
Technical field
The utility model relates to field of photovoltaic power generation, especially relates to a kind ofly being applied to the system realizing solar module ice-melt snow melting function.
Background technology
The photovoltaic plant of current China is main still based on large-scale ground power station, the regions, northwest such as main distribution Qinghai, Gansu, winter temperature is low, the time is long, and the solar module of photovoltaic plant, often by snow and ice cover, seriously have impact on the generating efficiency of solar photovoltaic generation system.Meanwhile, at south China as the area such as Hunan, Guizhou also exists sleet, as 2008 years ice damages.When the distributed roofing photovoltaic power station of follow-up extensive development, need ice and snow load during extra consideration extreme weather on the impact of structural safety.Therefore, much constructed the factory buildings and can not build roof photovoltaic power station at present, have impact on the extensive development of solar energy power generating industry.
In photovoltaic generating system when solar module all or part of by snow and ice cover time, capped assembly can produce shadow effect (when part covers) maybe can not receive sunlight (when all covering), thus affects the efficiency of photovoltaic generating system and the life-span of photovoltaic cell component.Also can there is the catastrophic effect of roof avalanche in the utmost carrying ability that may exceed building in part photoelectricity building because snow ice on battery component is too thick.In order to avoid producing above-mentioned consequence, necessary snow removing deicing measure must be adopted.Photovoltaic generation snow-melting system or device produce along with the large-scale application of photovoltaic generation, it mainly realizes melting at the sleety weather of cold the accumulated snow and accumulated ice that cover solar module surface, thus ensure the generating efficiency of photovoltaic generating system, promote the life-span of photovoltaic generating system, thus reach raising photovoltaic generating system investment return, promote the object of photovoltaic generating system commercialized development.At present, more common mainly contain artificial snow removing deicing method and heating snow removing deicing method two kinds except snow and ice mode, due to manually except snow dust is consuming time and except snow and ice thorough, therefore adopt heating except the method for snow and ice more.
Existing photovoltaic generating system snow-melting system mainly utilizes can Snowmelt Type solar module and utilize external dc power to carry out solar photovoltaic generation system snow melt.
As in prior art 1, by Co., Ltd of ERC of photovoltaic Beijing in application on 05 29th, 2013, and announce on October 30th, 2013, Authorization Notice No. is the device for melting snow that the utility model patent of CN203200591U discloses a kind of solar module, comprise DC power supply and several solar modules, DC power supply connects the power bus in header box, power bus is connected to some stube cables, power switch in parallel and charge switch is provided with between power bus with stube cable, series connection several solar modules described on stube cable.This utility model does not make any change to solar module structure, by external direct current power supply, to battery component energising, utilizes solar cell PN junction effect, uses battery-heating, melt the accumulated snow on surface, as shown in Figure 1.
And in another prior art 2, by Changzhou YiJing opto-electrical Science Co., Ltd in application on 01 30th, 2013, and on 07 24th, 2013 bulletins, notification number is that the Chinese utility model patent of CN203085567U discloses a kind of solar components automatic snow-melting device, comprise DC power supply, DC power supply has positive and negative electrode, and positive pole is connected with the positive pole of solar components, and negative pole is connected with the negative pole of solar components.This utility model solar components automatic snow-melting device, decreases manpower except the difficulty of snow and ice, the accumulated snow on effective clean-out assembly surface and freezing, saves cost of labor, is particularly useful for large-scale power station.Snow removing is more even, improves the adaptive capacity of assembly in severe cold, many ice and snow area, reduces the time that accumulated snow blocks assembly, improves generating efficiency.Pass to reverse current to assembly, can partly recover PID effect, slow down the decay of assembly, as shown in Figure 2.
Above-mentioned photovoltaic generation snow-melting system of the prior art is divided into two kinds: a kind of for utilizing increase external dc power, and carries out part transformation to photovoltaic generating system, carries out snow melt to photovoltaic generating system.Another kind of for utilizing the internal structure improving solar module, increase corresponding resistance and change the resistivity of component package material, reaching the function that solar module can realize automatic snow-melting.But, above-mentioned two kinds of methods all need to increase extra investment and practicality is not strong, by utilizing external dc power snow melt, except needs increase extras, also need to carry out part transformation to existing photovoltaic plant, needing to recover rear system to system after snow melt can carry out photovoltaic generation.Meanwhile, if run into intermittent sleety weather, need repeatedly to transform and recover, the manpower of at substantial, also have some effects to the generating efficiency improving photovoltaic generating system.The mode of transformation battery component is utilized to carry out photovoltaic generating system snow melt, though can automatic snow-melting be carried out, without the need to carrying out the corresponding system reform etc., but cannot transform existing system, after transformation, assembly also improves corresponding caloric value when covering without snow simultaneously, have impact on the conversion efficiency of assembly, be unfavorable for large-scale promotion.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of solar module ice melting system, existing ice melting system can be solved and need increase extra investment and practicality is not strong, if run into intermittent sleety weather simultaneously, need repeatedly to transform and recover, the manpower of at substantial, also has the technical problem of some effects to the generating efficiency improving photovoltaic generating system.
In order to realize above-mentioned utility model object, the utility model specifically provides a kind of technic relization scheme of solar module ice melting system, a kind of solar module ice melting system, comprising: the photovoltaic cell component, photovoltaic DC-to-AC converter, power transformer and the electrical network that are connected successively.Described photovoltaic DC-to-AC converter adopts the inverter of bi-directional energy flow structure, and when described photovoltaic DC-to-AC converter works in ice-melt mode, the energy absorbed from described electrical network transfers to described photovoltaic cell component through described power transformer, photovoltaic DC-to-AC converter successively.
The utility model also specifically provides the technic relization scheme of another kind of solar module ice melting system in addition, a kind of solar module ice melting system, comprising: the photovoltaic cell component, photovoltaic DC-to-AC converter, power transformer and the energy-storage system that are connected successively.Described photovoltaic DC-to-AC converter adopts the inverter of bi-directional energy flow structure, and when described photovoltaic DC-to-AC converter works in ice-melt mode, the energy absorbed from described energy-storage system transfers to described photovoltaic cell component through described power transformer, photovoltaic DC-to-AC converter successively.
Preferably, when described photovoltaic DC-to-AC converter works in ice-melt mode, the AC energy coming from described electrical network or energy-storage system is converted to DC energy by described photovoltaic DC-to-AC converter, and export described photovoltaic cell component to, now described photovoltaic cell component is as load, is realized the ice-melt on described photovoltaic cell component surface by the mode absorbing energy heating.
Preferably, when described photovoltaic DC-to-AC converter works in power generation mode, the energy absorbed from described photovoltaic cell component transfers to described electrical network or energy-storage system through described photovoltaic DC-to-AC converter, power transformer successively.
Preferably, when described photovoltaic DC-to-AC converter works in power generation mode, the DC energy coming from described photovoltaic cell component is converted to AC energy by described photovoltaic DC-to-AC converter, and exports described electrical network or energy-storage system to.
Preferably, when described photovoltaic DC-to-AC converter works in ice-melt mode, described photovoltaic DC-to-AC converter fills with electric current to described photovoltaic cell component output is counter, and described anti-filling electric current carries out ice-melt by the internal resistance heating of described photovoltaic cell component PN junction self.
Preferably, described ice melting system also comprises supervisory control system or switch further, when described ice melting system needs to carry out ice-melt operation, sends ice-melt operation instruction signal by described supervisory control system or switch to described photovoltaic DC-to-AC converter.
Preferably, described photovoltaic DC-to-AC converter is selected from any one power electronics energy converter comprising DC-AC one-stage transfor-mation device, DC-DC-AC two-dimensional transform device further.
By implementing the solar module ice melting system that above-mentioned the utility model provides, there is following beneficial effect:
The utility model utilizes the photovoltaic DC-to-AC converter with bi-directional energy flow to control system capacity, by power grid energy or energy-storage system Energy transfer on solar module, this system realizes simple, practical, the north more for ice and snow, the ice and snow phase is longer and often occur the south of sleet, the solar energy utilization ratio of photovoltaic generating system can be promoted well, and the energy output of further raising system, reduce ice and snow load to the impact of structural safety, realize the maximum return of photovoltaic plant investment.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Apparently, the accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other embodiment according to these accompanying drawings.
Fig. 1 is the circuit structure topology block diagram of the device for melting snow of prior art 1 solar module;
Fig. 2 is the system configuration theory diagram of prior art 2 solar components automatic snow-melting device;
Fig. 3 is the system architecture diagram of a kind of embodiment of the utility model solar module ice melting system;
Fig. 4 is the system architecture diagram of the another kind of embodiment of the utility model solar module ice melting system;
Fig. 5 is the circuit topological structure figure of a kind of embodiment of photovoltaic DC-to-AC converter in the utility model solar module ice melting system;
Fig. 6 is the circuit topological structure figure of the another kind of embodiment of photovoltaic DC-to-AC converter in the utility model solar module ice melting system;
In figure: 1-photovoltaic cell component, 2-photovoltaic DC-to-AC converter, 3-power transformer, 4-electrical network, 5-supervisory control system, 6-energy-storage system, 7-switch.
Embodiment
For the purpose of quoting and know, by the technical term hereinafter used, write a Chinese character in simplified form or abridge and be described below:
PN junction: adopt different doping processs, by diffusion, is produced on P type semiconductor and N type semiconductor on same semiconductor chip, and just form space charge region at their interface and be called PN junction (PN junction), PN junction has unilateral conduction;
DC-AC converter: the abbreviation of direct-current-alternating-current converter;
DC-DC-AC converter: the abbreviation of DC-to-DC-AC converter.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in accompanying drawing 3 to accompanying drawing 6, give the specific embodiment of the utility model solar module ice melting system, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 3, a kind of specific embodiment of solar module ice melting system, comprise: the photovoltaic cell component 1, photovoltaic DC-to-AC converter 2, power transformer 3 and the electrical network 4 that are connected successively, photovoltaic DC-to-AC converter 2 adopts the inverter of bi-directional energy flow structure further.When photovoltaic DC-to-AC converter 2 works in ice-melt mode, the energy absorbed from electrical network 4 transfers to photovoltaic cell component 1 through power transformer 3, photovoltaic DC-to-AC converter 2 successively, now photovoltaic cell component 1 is as load, is realized the ice-melt on photovoltaic cell component 1 surface by the mode absorbing energy heating.
As shown in Figure 4, a kind of specific embodiment of solar module ice melting system, comprise: the photovoltaic cell component 1, photovoltaic DC-to-AC converter 2, power transformer 3 and the energy-storage system 6 that are connected successively, photovoltaic DC-to-AC converter 2 adopts the inverter of bi-directional energy flow structure further.When photovoltaic DC-to-AC converter 2 works in ice-melt mode, the energy absorbed from energy-storage system 6 transfers to photovoltaic cell component 1 through power transformer 3, photovoltaic DC-to-AC converter 2 successively, now photovoltaic cell component 1 is as load, is realized the ice-melt on photovoltaic cell component 1 surface by the mode absorbing energy heating.
As a kind of typical specific embodiment of the utility model, as shown in figures 3 and 4, ice melting system also comprises supervisory control system 5 or switch 7 further, when ice melting system needs to carry out ice-melt operation, sends ice-melt operation instruction signal by supervisory control system 5 or switch 7 to photovoltaic DC-to-AC converter 2.
Above-mentioned two kinds of specific embodiments of the present utility model, utilize the photovoltaic effect of solar photovoltaic battery component 1, solar energy is converted to electric energy, takes full advantage of the internal resistance of solar battery sheet PN junction self and allow to be completed by the characteristic of certain reverse current the ice-melt snow melting function of grid-connected photovoltaic system.Specific embodiment converts the energy of electrical network 4 to direct current energy by the photovoltaic DC-to-AC converter 2 with bi-directional energy flow, and now photovoltaic cell component 1 consumes electric energy as DC load, and converts heat energy to, the snowberg on photovoltaic cell component 1 surface and icing is melted.When needs carry out molten ice snow melt, send command signal by supervisory control system 5 or switch 7 to photovoltaic DC-to-AC converter 2, photovoltaic DC-to-AC converter 2 completes the object to the surperficial ice dissolution of photovoltaic cell component 1 by the energy controlling to draw from electrical network 4.The utility model specific embodiment utilizes the energy of electrical network 4, adopts photovoltaic DC-to-AC converter 2 and the energy control function thereof with energy in bidirectional flow, for photovoltaic cell component 1 provides the reliable direct current of energy.
When photovoltaic DC-to-AC converter 2 works in power generation mode, the energy absorbed from photovoltaic cell component 1 transfers to electrical network 4 or energy-storage system 6 through photovoltaic DC-to-AC converter 2, power transformer 3 successively.When photovoltaic DC-to-AC converter 2 works in power generation mode, the DC energy coming from photovoltaic cell component 1 is converted to AC energy by photovoltaic DC-to-AC converter 2, and exports electrical network 4 or energy-storage system 6 to.
When photovoltaic DC-to-AC converter 2 works in ice-melt mode, photovoltaic DC-to-AC converter 2 exports to photovoltaic cell component 1 and instead fills with electric current, and anti-electric current of filling with carries out ice-melt by the internal resistance heating of the PN junction self of photovoltaic cell component 1.When photovoltaic DC-to-AC converter 2 works in ice-melt mode, the AC energy coming from electrical network 4 or energy-storage system 6 is converted to DC energy by photovoltaic DC-to-AC converter 2, and exports photovoltaic cell component 1 to.
As a kind of typical specific embodiment of the utility model, photovoltaic DC-to-AC converter 2 is selected from any one power electronics energy converter comprising DC-AC one-stage transfor-mation device, DC-DC-AC two-dimensional transform device further.As shown in Figure 5, be the circuit topological structure figure of DC-AC one-stage transfor-mation device.As shown in Figure 6, be the circuit topological structure figure of DC-DC-AC two-dimensional transform device.What provide in accompanying drawing 5 and accompanying drawing 6 is three-phase inverter circuitry, also can be single-phase inverter circuit when practical application.
The mode of the photovoltaic DC-to-AC converter 2 that the utility model specific embodiment proposes and utilizes electrical network, have energy in bidirectional flow and the supervisory control system 5 of photovoltaic plant or switch 7, achieves the solar module ice-melt snow melting function in photovoltaic generating system.The utility model specific embodiment can utilize extraneous weather information to judge surperficial snowberg, the icing situation of photovoltaic cell component 1, or judges the surperficial snowberg of photovoltaic cell component 1, icing situation by manual observation.Corresponding ice-melt snow melt instruction is sent to photovoltaic DC-to-AC converter 2 by the supervisory control system 5 in power station or switch 7.Photovoltaic DC-to-AC converter 2 is under snow melt ice-melt mode of operation, Energy Transfer is absorbed to photovoltaic cell component 1 from electrical network 4 or energy-storage system 6, now photovoltaic cell component 1 is as load, the ice dissolution function on photovoltaic cell component 1 surface is realized by the mode absorbing energy heating, thus promote the energy output of solar energy utilization ratio and photovoltaic generating system, reduce photovoltaic cell component 1 because ice and snow is whole or locally hide the shadow effect caused and the infringement produced.The utility model specific embodiment proposes a kind of technic relization scheme utilizing the supervisory control system 5 of photovoltaic DC-to-AC converter 2 and online photovoltaic plant to combine, can the surperficial snowberg situation of the extraneous weather information of Real-Time Monitoring and photovoltaic cell component 1.The supervisory control system 5 of photovoltaic plant carries out intellectual analysis according to above-mentioned monitoring information, when there is surperficial snowberg phenomenon in photovoltaic cell component 1, corresponding snow melt instruction is sent to photovoltaic DC-to-AC converter 2, photovoltaic DC-to-AC converter 2 proceeds to deicing or snow melting pattern, the electric energy of electrical network 4 or energy-storage system 6 is oppositely delivered to photovoltaic cell component 1, utilizes the internal resistance of photovoltaic cell component self to generate heat and carry out snow melt.Meanwhile, photovoltaic DC-to-AC converter 2 can also determine the size of maximum anti-filling electric current intelligently according to the connection of rear end photovoltaic cell component 1, to ensure the safety of photovoltaic cell component 1.
By implementing the solar module ice melting system that the utility model specific embodiment describes, following technique effect can be reached:
The solar module ice melting system that the utility model specific embodiment describes directly utilizes solar energy grid-connected photovoltaic system, and without the need to extras investment, ice-melt snow-smelting method is simple, cost is low.System described by the utility model specific embodiment utilizes the photovoltaic DC-to-AC converter 2 with bi-directional energy flow, and the control of photovoltaic DC-to-AC converter 2 pairs of energy by the Energy transfer of electrical network 4 or energy-storage system 6 on photovoltaic cell component 1, method realizes simple, practical.The north more for ice and snow, the ice and snow phase is longer and often occur the south of sleet, can promote the solar energy utilization ratio of photovoltaic generating system well, thus improve the energy output of photovoltaic system further, reduce ice and snow load to the impact of Building Structural Safety.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from Spirit Essence of the present utility model and technical scheme, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore; every content not departing from technical solutions of the utility model; according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belong in the scope of technical solutions of the utility model protection.
Claims (11)
1. a solar module ice melting system, is characterized in that, comprising: the photovoltaic cell component (1), photovoltaic DC-to-AC converter (2), power transformer (3) and the electrical network (4) that are connected successively; Described photovoltaic DC-to-AC converter (2) adopts the inverter of bi-directional energy flow structure, when described photovoltaic DC-to-AC converter (2) works in ice-melt mode, the energy absorbed from described electrical network (4) transfers to described photovoltaic cell component (1) through described power transformer (3), photovoltaic DC-to-AC converter (2) successively.
2. solar module ice melting system according to claim 1, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in ice-melt mode, the AC energy coming from described electrical network (4) is converted to DC energy by described photovoltaic DC-to-AC converter (2), and export described photovoltaic cell component (1) to, described photovoltaic cell component (1), as load, realizes the ice-melt on described photovoltaic cell component (1) surface by the mode absorbing energy heating.
3. solar module ice melting system according to claim 1 and 2, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in power generation mode, the energy absorbed from described photovoltaic cell component (1) transfers to described electrical network (4) through described photovoltaic DC-to-AC converter (2), power transformer (3) successively.
4. solar module ice melting system according to claim 3, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in power generation mode, the DC energy coming from described photovoltaic cell component (1) is converted to AC energy by described photovoltaic DC-to-AC converter (2), and exports described electrical network (4) to.
5. a solar module ice melting system, is characterized in that, comprising: the photovoltaic cell component (1), photovoltaic DC-to-AC converter (2), power transformer (3) and the energy-storage system (6) that are connected successively; Described photovoltaic DC-to-AC converter (2) adopts the inverter of bi-directional energy flow structure, when described photovoltaic DC-to-AC converter (2) works in ice-melt mode, the energy absorbed from described energy-storage system (6) transfers to described photovoltaic cell component (1) through described power transformer (3), photovoltaic DC-to-AC converter (2) successively.
6. solar module ice melting system according to claim 5, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in ice-melt mode, the AC energy coming from described energy-storage system (6) is converted to DC energy by described photovoltaic DC-to-AC converter (2), and export described photovoltaic cell component (1) to, described photovoltaic cell component (1), as load, realizes the ice-melt on described photovoltaic cell component (1) surface by the mode absorbing energy heating.
7. the solar module ice melting system according to claim 5 or 6, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in power generation mode, the energy absorbed from described photovoltaic cell component (1) transfers to described energy-storage system (6) through described photovoltaic DC-to-AC converter (2), power transformer (3) successively.
8. solar module ice melting system according to claim 7, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in power generation mode, the DC energy coming from described photovoltaic cell component (1) is converted to AC energy by described photovoltaic DC-to-AC converter (2), and exports described energy-storage system (6) to.
9. according to the solar module ice melting system in claim 1,2,4,5,6,8 described in arbitrary claim, it is characterized in that: when described photovoltaic DC-to-AC converter (2) works in ice-melt mode, described photovoltaic DC-to-AC converter (2) fills with electric current to described photovoltaic cell component (1) output is counter, and described anti-filling electric current carries out ice-melt by the internal resistance heating of described photovoltaic cell component (1) PN junction self.
10. solar module ice melting system according to claim 9, it is characterized in that: described ice melting system also comprises supervisory control system (5) or switch (7), when described ice melting system needs to carry out ice-melt operation, send ice-melt operation instruction signal by described supervisory control system (5) or switch (7) to described photovoltaic DC-to-AC converter (2).
11. according to the solar module ice melting system in claim 1,2,4,5,6,8,10 described in arbitrary claim, it is characterized in that: described photovoltaic DC-to-AC converter (2) is selected from any one power electronics energy converter comprising DC-AC one-stage transfor-mation device, DC-DC-AC 2 stage converter.
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| CN105958414A (en) * | 2016-06-24 | 2016-09-21 | 国网福建省电力有限公司 | Mobile battery energy storage device-based power distribution network medium-voltage line DC thermal ice-melting circuit and method |
| CN106100565A (en) * | 2016-08-25 | 2016-11-09 | 上海安悦节能技术有限公司 | Photovoltaic panel automatic snow-melting device and control method thereof |
| CN106329448A (en) * | 2016-09-09 | 2017-01-11 | 芜湖市旭辉电工新材料有限责任公司 | Photovoltaic microgrid roof snow melting heat tracing band system |
| CN108832886A (en) * | 2018-06-20 | 2018-11-16 | 上海安悦节能技术有限公司 | Photovoltaic bicycle shed automation snow removing control method |
| 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 |
| CN109818565A (en) * | 2019-04-02 | 2019-05-28 | 上海理工大学 | A kind of photovoltaic battery panel removes accumulated snow device and method automatically |
| CN110492844A (en) * | 2019-09-17 | 2019-11-22 | 通威太阳能（安徽）有限公司 | A kind of photovoltaic module reliability checking method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105958414A (en) * | 2016-06-24 | 2016-09-21 | 国网福建省电力有限公司 | Mobile battery energy storage device-based power distribution network medium-voltage line DC thermal ice-melting circuit and method |
| CN105958414B (en) * | 2016-06-24 | 2017-11-17 | 国网福建省电力有限公司 | Power distribution network medium-voltage line direct current thermal ice-melting circuit and method based on mobile battery energy storage device |
| CN106100565A (en) * | 2016-08-25 | 2016-11-09 | 上海安悦节能技术有限公司 | Photovoltaic panel automatic snow-melting device and control method thereof |
| CN106329448A (en) * | 2016-09-09 | 2017-01-11 | 芜湖市旭辉电工新材料有限责任公司 | Photovoltaic microgrid roof snow melting heat tracing band system |
| 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 |
| CN108832886A (en) * | 2018-06-20 | 2018-11-16 | 上海安悦节能技术有限公司 | Photovoltaic bicycle shed automation snow removing control method |
| WO2020019103A1 (en) * | 2018-07-23 | 2020-01-30 | Abb Schweiz Ag | Photovoltaic power system |
| CN109818565A (en) * | 2019-04-02 | 2019-05-28 | 上海理工大学 | A kind of photovoltaic battery panel removes accumulated snow device and method automatically |
| CN110492844A (en) * | 2019-09-17 | 2019-11-22 | 通威太阳能（安徽）有限公司 | A kind of photovoltaic module reliability checking method |
| CN110492844B (en) * | 2019-09-17 | 2021-08-20 | 通威太阳能（安徽）有限公司 | Photovoltaic module reliability detection method |
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