CN109802632A - Snow melting method, solar junction box, solar power generation system, medium and equipment - Google Patents
Snow melting method, solar junction box, solar power generation system, medium and equipment Download PDFInfo
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- CN109802632A CN109802632A CN201811556363.8A CN201811556363A CN109802632A CN 109802632 A CN109802632 A CN 109802632A CN 201811556363 A CN201811556363 A CN 201811556363A CN 109802632 A CN109802632 A CN 109802632A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000010248 power generation Methods 0.000 title abstract description 14
- 238000002844 melting Methods 0.000 title abstract 5
- 230000008018 melting Effects 0.000 title abstract 5
- 230000007613 environmental effect Effects 0.000 claims description 55
- 238000003723 Smelting Methods 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000005413 snowmelt Substances 0.000 description 31
- 206010037660 Pyrexia Diseases 0.000 description 22
- 238000004891 communication Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 6
- 230000005236 sound signal Effects 0.000 description 4
- 230000003685 thermal hair damage Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 201000001098 delayed sleep phase syndrome Diseases 0.000 description 1
- 208000033921 delayed sleep phase type circadian rhythm sleep disease Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The present disclosure relates to a snow melting method, a solar junction box, a solar power generation system, a medium, and an apparatus. The method can be applied to a solar junction box and comprises the following steps: judging whether the current time is day; if the current time is daytime, acquiring the current environment temperature and the working voltage of the solar cell module in real time; and if the current environment temperature is less than a first preset temperature threshold and the working voltage is less than a first preset voltage threshold, the switch is controlled to be switched off, so that the bypass diode connected in parallel with the solar cell module stops working. Therefore, the current of the solar cell module can not be shunted by the bypass diode, the heating efficiency of the solar cell module is high, and therefore the solar cell module can be used as a load to heat and melt snow, the snow melting efficiency and the power generation performance of a solar power generation system are improved, and the service life of the bypass diode is prolonged. In addition, the solar cell module can be prevented from being damaged due to chemical snow melting, artificial snow melting and the like.
Description
Technical field
This disclosure relates to field of solar thermal power generation, and in particular, to a kind of snow-smelting method, solar junction box, solar energy
Electricity generation system, medium and equipment.
Background technique
The power generation performance of solar power system is highly susceptible to the influence of weather environment variation, under especially northern winter
Snowy day gas, by snow cover, the power generation performance of solar power system will receive to be seriously affected solar cell module.Therefore,
Snow removing in time, guarantees the power generation performance of solar power system, is the important of northern area solar power system winter O&M
One of work and challenge.
Existing snow-removing method is mainly the following mode: (1) extraneous physical heating snow melt, but this kind of mode needs people
Work or snow shoveling machine etc. clear up snow melt, need to spend a large amount of manpower and material resources；(2) extraneous chemical thaw, wherein chemicals is easy
Solar cell module is destroyed, and needs ancillary cost manpower and material resources；(3) internal spontaneous heating snow melt method, i.e., in solar-electricity
Backward voltage is added on the component of pond, solar cell module is subjected to fever snow melt as load, but solar cell module is all
It is equipped with the bypass diode for preventing hot spot effect, in this way, electric current can be bypassed diode shunting, it will lead to bypass two
Pole pipe fever is serious, and solar cell module heating efficiency is not high, leads to snow melt inefficiency, and can also shorten bypass two
The service life of pole pipe.
Summary of the invention
In order to overcome the problems, such as present in the relevant technologies, the disclosure provides a kind of snow-smelting method, solar junction box, the sun
It can electricity generation system, medium and equipment.
To achieve the goals above, according to the first aspect of the embodiments of the present disclosure, a kind of snow-smelting method is provided, is applied to too
Positive energy terminal box, wherein the solar junction box includes bypass diode, and the snow-smelting method includes:
Judge whether current time is daytime；
If the current time is daytime, current environmental temperature, the operating voltage of solar cell module are obtained in real time；
If the current environmental temperature is less than the first preset temperature threshold and the operating voltage is less than the first predeterminated voltage
Threshold value, then control switch disconnects, so that the bypass diode in parallel with the solar cell module stops working.
Optionally, if the current environmental temperature less than the first preset temperature threshold and the operating voltage it is small
In the first predetermined voltage threshold, then control switch disconnects, so that the bypass two in parallel with the solar cell module
After the step of pole pipe stops working, the method also includes:
The operating current of the solar cell module is obtained in real time；
If the current environmental temperature is greater than the second preset temperature threshold or the operating voltage is greater than the second default electricity
It presses threshold value or the operating current to be greater than predetermined current threshold, is then closed the switch described in control, so that two poles of the bypass
Pipe works normally, wherein second preset temperature threshold is greater than first preset temperature threshold, second predeterminated voltage
Threshold value is greater than first predetermined voltage threshold；
It returns and described the step of whether current time is daytime is judged.
Optionally, the method also includes:
If the current time is night, the current environmental temperature is obtained in real time；
Determine whether the current environmental temperature is less than third preset temperature threshold；
If the current environmental temperature is less than the third preset temperature threshold, controls the switch and disconnect；
It returns and described the step of whether current time is daytime is judged.
Optionally, it if being less than the third preset temperature threshold in the current environmental temperature, is opened described in control
After the step of shutdown is opened, the method also includes:
Determine whether the current environmental temperature is greater than the 4th preset temperature threshold, wherein the 4th preset temperature threshold
Value is greater than the third preset temperature threshold；
If the current environmental temperature is greater than the 4th preset temperature threshold, closed the switch described in control；
It returns and described the step of whether current time is daytime is judged.
According to the second aspect of an embodiment of the present disclosure, a kind of solar junction box is provided, comprising: voltage sensor, temperature
Sensor, controller, the bypass diode in parallel with solar cell module and the concatenated switch of the bypass diode；
The voltage sensor, it is in parallel with the solar cell module, and connect with the controller, for detecting
The operating voltage of solar cell module is stated, and the operating voltage is sent to the controller；
Temperature sensor described in the temperature is connect with the controller, for detecting current environmental temperature, and will be described
Current environmental temperature is sent to the controller；
The controller is connected with the switch, wherein the controller is used to execute the offer of disclosure first aspect
The step of snow-smelting method.
Optionally, the solar junction box further include:
Current sensor is connected with the solar module, and is connect with the controller, for detecting the sun
The operating current of energy battery component, and the operating current is sent to the controller.
Optionally, the solar junction box further includes ontology, the voltage sensor, the temperature sensor, described
Controller, the bypass diode, the switch are arranged in the ontology.
According to the third aspect of an embodiment of the present disclosure, a kind of solar power system is provided, comprising:
Multiple solar cell modules being sequentially connected in series, for converting solar energy into direct current；
It connects one to one with each solar cell module in the multiple solar cell module being sequentially connected in series
Solar junction box, wherein the solar junction box is the solar junction box that provides of disclosure second aspect；With
And
Photovoltaic converter, it is in parallel with each solar cell module respectively, it strikes a bargain for converting the direct current
Galvanic electricity.
According to a fourth aspect of embodiments of the present disclosure, a kind of computer readable storage medium is provided, calculating is stored thereon with
The step of machine program, the snow-smelting method that realization disclosure first aspect provides when which is executed by processor.
According to a fifth aspect of the embodiments of the present disclosure, a kind of electronic equipment is provided, comprising:
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize that disclosure first aspect provides
The snow-smelting method the step of.
In the above-mentioned technical solutions, if current time is daytime, current environmental temperature and solar cell module are obtained
Operating voltage；If current environmental temperature is less than the first preset temperature threshold and the operating voltage of solar cell module is less than
One predetermined voltage threshold, then control switch disconnects, so that the bypass diode in parallel with solar cell module stops working.
In this way, the electric current of solar cell module will not be bypassed diode shunting, solar cell module heating efficiency is high, thus can
To carry out fever snow melt as load using solar cell module, snow melt efficiency and solar power system are not only improved
Power generation performance, and extend the service life of bypass diode.Further, it is also possible to which solar cell module is avoided to melt because of chemistry
Snow, artificial snow melt etc. and be damaged.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is a kind of block diagram of solar power system shown according to an exemplary embodiment.
Fig. 2 is a kind of block diagram of the solar power system shown according to another exemplary embodiment.
Fig. 3 is a kind of block diagram of the solar power system shown according to another exemplary embodiment.
Fig. 4 is a kind of block diagram of the solar power system shown according to another exemplary embodiment.
Fig. 5 is a kind of flow chart of snow-smelting method shown according to an exemplary embodiment.
Fig. 6 is a kind of flow chart of the snow-smelting method shown according to another exemplary embodiment.
Fig. 7 is a kind of flow chart of the snow-smelting method shown according to another exemplary embodiment.
Fig. 8 is a kind of flow chart of the snow-smelting method shown according to another exemplary embodiment.
Fig. 9 is the block diagram of a kind of electronic equipment shown according to an exemplary embodiment.
Figure 10 is the block diagram of a kind of electronic equipment shown according to an exemplary embodiment.
Description of symbols
1 solar junction box, 2 solar cell module
3 photovoltaic converter, 11 voltage sensor
12 temperature sensor, 13 controller
14 bypass diodes 15 switch
16 current sensor, 17 ontology
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
The disclosure provides a kind of solar power system, referring to Fig.1-Fig. 4, which may include: more
A solar cell module 2 being sequentially connected in series is (for example, solar cell module 2 shown in Fig. 1-Fig. 41, solar battery group
Part 22..., solar cell module 2n, wherein n is more than or equal to 2 integer) and above-mentioned multiple solar energy being sequentially connected in series
The solar junction box 1 that each solar cell module 2 in battery component 2 connects one to one is (for example, institute in Fig. 1-Fig. 4
The solar junction box 1 shown1, solar junction box 12..., solar junction box 1n) and photovoltaic converter 3.Wherein, above-mentioned
Solar cell module 2 can be used for converting solar energy into direct current；Photovoltaic converter 3, respectively with each solar battery
Component 2 is in parallel, is used for converting direct-current power into alternating-current power.
Also, as shown in Figure 1, above-mentioned solar junction box 1 may include voltage sensor 11, temperature sensor 12, control
Device 13, the bypass diode 14 in parallel with solar cell module 2 and the concatenated switch 15 of above-mentioned bypass diode 14 processed.
Wherein, voltage sensor 11, in parallel with corresponding solar cell module 2, and connect with controller 13, it can be with
For detecting the operating voltage of corresponding solar cell module 2, and controller 13 is sent it to, controller 13 receives the sun
The operating voltage of energy battery component 2.
Temperature sensor 12 is connect with controller 13, it can be used for detecting current environmental temperature, and sends it to control
Device 13 processed, controller 13 receive the current environmental temperature.
Controller 13 is connect with switch 15, it can be used for according to the solar energy got from above-mentioned voltage sensor 11
The operating voltage of battery component 2 and from the current environmental temperature that above-mentioned temperature sensor 12 is got come control switch 15 closure or
It disconnects, so that working normally or stopping working with the concatenated bypass diode 14 of switch 15, to guarantee solar power generation
The power generation performance of system.Specifically, which can be realized by step 501 shown in Fig. 5~step 505.
In step 501, judge whether current time is daytime.
In the disclosure, controller 13 can obtain current time in several ways, in one embodiment,
A clock can be set in controller 13, controller 13 can obtain current time by the clock, and sentence according to current time
It whether is daytime before settled.
In another embodiment, a clock can be set in above-mentioned photovoltaic converter 3, in this way, controller 13 is logical
It crosses to communicate with the photovoltaic converter 3 and can get current time, later, can determine currently whether be according to the current time
Daytime.
Illustratively, in winter, it when current time is between 07:00~17:00 (including 07:00 and 17:00), can determine
Current time is daytime；When current time is not between 17:00~07:00 (including 07:00,17:00), when can determine current
Between be night.In summer, when current time is between 06:00~18:00 (including 06:00 and 18:00), when can determine current
Between be daytime；When current time is not between 18:00~06:00 (including 06:00,18:00), it can determine that current time is night
Evening.
If current time is daytime, following steps 502 can be executed；And if current time is night, can not execute and appoint
What is operated, that is, terminates (as shown in Figure 5).
In step 502, current environmental temperature, the operating voltage of solar cell module are obtained in real time.
In the disclosure, as described above, controller 13 can obtain current environmental temperature by above-mentioned temperature sensor 12,
The operating voltage of solar cell module is obtained by above-mentioned voltage sensor 11.
In step 503, judge current environmental temperature whether less than the first preset temperature threshold.
In the disclosure, controller 13 is after through the above steps 502 get current environmental temperature, it is possible to determine that deserves
Whether preceding environment temperature is less than the first preset temperature threshold (for example, 0 DEG C).If current environmental temperature is less than the above-mentioned first default temperature
Threshold value is spent, can determine and be currently at low temperature environment, 2 surface of solar cell module may be covered with accumulated snow, at this point it is possible to again
Whether the secondary operating voltage for determining solar cell module 2 is less than above-mentioned first predetermined voltage threshold, to determine solar battery
Whether 2 surface of component is covered with accumulated snow, i.e. execution following steps 504；If it is pre- that current environmental temperature is greater than or equal to above-mentioned first
If temperature threshold, it can determine and currently be not in low temperature environment, at this point it is possible to return to above-mentioned steps 501.
In step 504, judge the operating voltage of solar cell module whether less than the first predetermined voltage threshold.
In the disclosure, when solar cell module 2 is blocked by barriers such as accumulated snow, operating voltage can significantly drop
It is low, and it is lower than the maximum power voltage (Vmpp) of solar cell module, therefore, front ring can be worked as in the determination of above-mentioned steps 503
, can whether small by determining the operating voltage of solar cell module 2 when border temperature is less than above-mentioned first preset temperature threshold
Determine whether 2 surface of solar cell module is covered with accumulated snow in above-mentioned first predetermined voltage threshold, wherein above-mentioned first is pre-
If voltage threshold may, for example, be 0.6Vmpp, wherein Vmpp belongs to the intrinsic parameter of solar cell module.
When the operating voltage for determining solar cell module 2 is less than above-mentioned first predetermined voltage threshold, show solar energy
2 surface of battery component may be covered with accumulated snow, at this point it is possible to solar cell module 2 is subjected to fever snow melt as load, because
This, needs to control the bypass diode 14 in parallel with the solar cell module 2 and stops working, in the disclosure, can pass through
Control disconnects controlling above-mentioned bypass diode 14 and stopping working (below executing with the concatenated switch 15 of bypass diode 14
Step 505).
And when the operating voltage for determining solar cell module is greater than or equal to above-mentioned first predetermined voltage threshold, show
2 surface of solar cell module does not cover accumulated snow, at this point it is possible to return to above-mentioned steps 501.
In step 505, control switch disconnects, so that the bypass diode in parallel with solar cell module stops work
Make.
In the disclosure, after the disconnection of control switch 15, the bypass diode 14 in parallel with solar cell module 2 stops
Work, in this way, the electric current of solar cell module 2 will not be bypassed the shunting of diode 14,2 heating efficiency of solar cell module
Height, at this point it is possible to which the solar cell module 2 is carried out fever snow melt as load.
In the above-mentioned technical solutions, if current time is daytime, current environmental temperature and solar cell module are obtained
Operating voltage；If current environmental temperature is less than the first preset temperature threshold and the operating voltage of solar cell module is less than
One predetermined voltage threshold, then control switch disconnects, so that the bypass diode in parallel with solar cell module stops working.
In this way, the electric current of solar cell module will not be bypassed diode shunting, solar cell module heating efficiency is high, thus can
To carry out fever snow melt as load using solar cell module, snow melt efficiency and solar power system are not only improved
Power generation performance, and extend the service life of bypass diode.Further, it is also possible to which solar cell module is avoided to melt because of chemistry
Snow, artificial snow melt etc. and be damaged.
Fig. 2 is a kind of block diagram of the solar junction box shown according to another exemplary embodiment.Referring to Fig. 2, it is above-mentioned too
It is positive can terminal box can also include: current sensor 16, connect with corresponding solar module 2, and with above controller 13
Connection, for detecting the operating current of the solar cell module 2, and sends it to controller 13, and controller 13 receives should
The operating current of solar cell module 2.
Fever snow melt is carried out as load continuous in solar cell module 2, if flowing through the solar cell module 2
Electric current is excessive, may cause solar cell module 2 and crosses cause thermal damage, therefore, when the operating current of solar cell module 2 is greater than
Predetermined current threshold is (for example, 0.6Impp, wherein Impp peak power electric current, the Impp are the intrinsic of solar cell module
Parameter) when, it needs to control bypass diode 14 connected in parallel and works normally, to be shunted by the bypass diode 14,
So as to avoid solar cell module 2 from crossing thermal damage.In addition, the accumulated snow when 2 surface of solar cell module melts completely
When afterwards or current environmental temperature is increased to certain value, it can stop carrying out fever snow melt using solar cell module 2, this
When, it can control above-mentioned switch 15 and be closed, so that the bypass diode 14 normal work in parallel with the solar cell module 2
Make.Specifically, it can be realized by step 506 shown in Fig. 6~step 510.
In step 506, the operating current of solar cell module is obtained in real time.
In the disclosure, it is disconnected in 505 control switches 15 through the above steps, so that simultaneously with solar cell module 2
After the bypass diode 14 of connection stops working, the operating current of the solar cell module can be obtained in real time.
In step 507, judge whether current environmental temperature is greater than the second preset temperature threshold.
In the disclosure, which is greater than above-mentioned first preset temperature threshold, for example, the first default temperature
Degree threshold value is 0 DEG C, the second preset temperature threshold is 5 DEG C.When current environmental temperature is greater than above-mentioned second preset temperature threshold, table
Bright current environmental temperature increases, and accumulated snow can melt naturally, it is no longer necessary to fever snow melt is carried out by solar cell module 2,
At this point it is possible to the above-mentioned closure of switch 15 (i.e. execution following steps 510) be controlled, so that in parallel with the solar cell module 2
Bypass diode 14 work normally, solar cell module 2 stop fever snow melt.
When current environmental temperature is less than or equal to above-mentioned second preset temperature threshold, show currently still in low temperature ring
Border, at this point it is possible to again determine solar cell module operating voltage whether be greater than the second predetermined voltage threshold, that is, execute with
Lower step 508.
In step 508, judge whether the operating voltage of solar cell module is greater than the second predetermined voltage threshold.
In the disclosure, which is greater than above-mentioned first predetermined voltage threshold, for example, the first default electricity
Pressure threshold value is 0.6Vmpp, the second predetermined voltage threshold is 0.8Vmpp.It is greater than in the operating voltage of solar cell module 2 above-mentioned
When the second predetermined voltage threshold, show that the accumulated snow on 2 surface of solar cell module melts completely, it is no longer necessary to by too
Positive energy battery component 2 carries out fever snow melt, at this point it is possible to the above-mentioned closure of switch 15 (i.e. execution following steps 510) are controlled, so that
It obtains the bypass diode 14 in parallel with the solar cell module 2 to work normally, solar cell module 2 stops fever snow melt.
And when the operating voltage of solar cell module 2 is less than or equal to above-mentioned second predetermined voltage threshold, show this
The accumulated snow on 2 surface of solar cell module does not melt completely, at this point it is possible to determine the work of solar cell module 2 again
Whether electric current is greater than predetermined current threshold, i.e. execution following steps 509.
In step 509, judge whether the operating current of solar cell module is greater than predetermined current threshold.
In the disclosure, when the operating current of solar cell module 2 is greater than above-mentioned predetermined current threshold, in order to avoid
The solar cell module 2 crosses thermal damage, can control the above-mentioned closure of switch 15 (i.e. execution following steps 510), so that with
The solar cell module 2 bypass diode 14 in parallel works normally, and solar cell module 2 stops fever snow melt.
And when the operating current of solar cell module 2 is less than or equal to above-mentioned predetermined current threshold, then it returns above-mentioned
Step 507.
As it can be seen that being greater than the operating voltage of the second preset temperature threshold or solar cell module in current environmental temperature
When being greater than predetermined current threshold greater than the operating current of the second predetermined voltage threshold or solar cell module, can it control
Above-mentioned switch 15 is made to be closed.
In addition, it is necessary to explanation, above-mentioned steps 508,509 can execute before above-mentioned steps 507, it can also be upper
It states step 507 and executes (as shown in Figure 6) later, can also be performed simultaneously with above-mentioned steps 507, also, above-mentioned steps 509 can
To execute before above-mentioned steps 508, (as shown in Figure 6) can also be executed after above-mentioned steps 508, in the disclosure
It is not especially limited.
In step 510, control switch is closed, so that bypass diode works normally.
In the disclosure, after the closure of control switch 15, the bypass diode 14 in parallel with solar cell module 2 restores
It works normally, in this way, the electric current of solar cell module 2 can be bypassed the shunting of diode 14, solar cell module 2 stops hair
Hot snow melt.Later, above-mentioned steps 501 can be returned to continue to execute.
In addition, other than it can use solar cell module 2 and carry out fever snow melt daytime, in order to guarantee solar power generation
System can carry out normal power generation daytime as early as possible, can carry out fever snow melt (example using solar cell module 2 at night
Ground, the solar cell module 2 can carry out fever snow melt by the electricity that solar power system stores), to avoid night
Accumulated snow deposition.Specifically, the above method can also include step 511~step 513 shown in fig. 7.
In step 511, current environmental temperature is obtained in real time.
In step 512, determine whether current environmental temperature is less than third preset temperature threshold.
In the disclosure, when through the above steps 501 determine that current time is night, current environment can be obtained in real time
Temperature (i.e. execution above-mentioned steps 511), later, it is possible to determine that whether the current environmental temperature is less than third preset temperature threshold.
If current environmental temperature is less than above-mentioned third preset temperature threshold, show to be currently at low temperature environment, to avoid night accumulated snow
Deposition, at this point it is possible to which solar cell module 2 is carried out fever snow melt as load, therefore, it is necessary to control and the solar-electricity
The bypass diode 14 in parallel of pond component 2 stops working, and in the disclosure, can be connected by controlling with the bypass diode 14
Switch 15 disconnect stop working controlling above-mentioned bypass diode 14 (i.e. execution following steps 513).If current environmental temperature
When more than or equal to above-mentioned third preset temperature threshold, it can determine and currently be not in low temperature environment, at this point it is possible to return
State step 501.
In step 513, control switch is disconnected.
In the disclosure, after the disconnection of control switch 15, the bypass diode 14 in parallel with solar cell module 2 stops
Work, in this way, the electric current of solar cell module 2 will not be bypassed the shunting of diode 14,2 heating efficiency of solar cell module
Height, at this point it is possible to which the solar cell module 2 is carried out fever snow melt as load.
In addition, when the current environmental temperature at night is increased to certain value, it can stop utilizing solar cell module 2
Fever snow melt is carried out, is closed at this point it is possible to control above-mentioned switch 15, so that the bypass in parallel with the solar cell module 2
Diode 14 works normally.Specifically, it can be realized by step 514 shown in fig. 8 and step 515.
In the step 514, determine whether current environmental temperature is greater than the 4th preset temperature threshold.
In the disclosure, the 4th preset temperature threshold is greater than above-mentioned third preset temperature threshold.Through the above steps
513 control switches 15 disconnect, so that can sentence after the bypass diode 14 in parallel with solar cell module 2 stops working
Determine whether current environmental temperature is greater than above-mentioned 4th preset temperature threshold.It is greater than above-mentioned 4th preset temperature in current environmental temperature
When threshold value, show that current environmental temperature increases, accumulated snow can melt naturally, it is no longer necessary to carry out by solar cell module 2
Fever snow melt, at this point it is possible to the above-mentioned closure of switch 15 (i.e. execution following steps 515) be controlled, so that with the solar battery
The bypass diode 14 in parallel of component 2 works normally, and solar cell module 2 stops fever snow melt.
When current environmental temperature is less than or equal to above-mentioned four preset temperature threshold, show currently still in low temperature ring
Border, it is still necessary to continue to carry out fever snow melt by solar cell module 2, at this point it is possible to continue to determine that current environmental temperature is
It is no to be greater than above-mentioned 4th preset temperature threshold (i.e. return above-mentioned steps 514), until current environmental temperature is greater than the above-mentioned 4th in advance
If when temperature threshold, executing following steps 515.
In step 515, control switch is closed.
In the disclosure, after the closure of control switch 15, the bypass diode 14 in parallel with solar cell module 2 restores
It works normally, in this way, the electric current of solar cell module 2 can be bypassed the shunting of diode 14, solar cell module 2 stops hair
Hot snow melt.Later, above-mentioned steps 501 can be returned to continue to execute.
In addition, it is necessary to explanation, above-mentioned first preset temperature threshold, the second preset temperature threshold, third preset temperature
Threshold value, the 4th preset temperature threshold, the first predetermined voltage threshold, the second predetermined voltage threshold, predetermined current threshold, may each be
Value set by user, is also possible to the empirical value of default, also, the first preset temperature threshold and third preset temperature threshold can be with
It is equal, it can not also wait, the second preset temperature threshold and the 4th preset temperature threshold can be equal, can not also wait, in this public affairs
It is not especially limited in opening.
In addition, in order to avoid voltage sensor 11, temperature sensor 12, controller 13, bypass diode 14, switch 15 because
Exposed to be damaged outside, as shown in Figure 3 and Figure 4, above-mentioned solar junction box can also include ontology 17, wherein above-mentioned voltage passes
Sensor 11, temperature sensor 12, controller 13, bypass diode 14, switch 15 are arranged in the ontology 17.
Fig. 9 is the block diagram of a kind of electronic equipment 900 shown according to an exemplary embodiment.As shown in figure 9, the electronics is set
Standby 900 may include: processor 901, memory 902.The electronic equipment 900 can also include multimedia component 903, input/
Export one or more of (I/O) interface 904 and communication component 905.
Wherein, processor 901 is used to control the integrated operation of the electronic equipment 900, to complete in above-mentioned snow-smelting method
All or part of the steps.Memory 902 is used to store various types of data to support the operation in the electronic equipment 900,
These data for example may include the instruction of any application or method for operating on the electronic equipment 900, and
The relevant data of application program, such as contact data, the message of transmitting-receiving, picture, audio, video etc..The memory 902 can
By any kind of volatibility or non-volatile memory device or their combination realization, such as static random access memory
Device (Static Random Access Memory, abbreviation SRAM), electrically erasable programmable read-only memory
(Electrically Erasable Programmable Read-Only Memory, abbreviation EEPROM), erasable programmable
Read-only memory (Erasable Programmable Read-Only Memory, abbreviation EPROM), programmable read only memory
(Programmable Read-Only Memory, abbreviation PROM), and read-only memory (Read-Only Memory, referred to as
ROM), magnetic memory, flash memory, disk or CD.Multimedia component 903 may include screen and audio component.Wherein
Screen for example can be touch screen, and audio component is used for output and/or input audio signal.For example, audio component may include
One microphone, microphone is for receiving external audio signal.The received audio signal can be further stored in storage
Device 902 is sent by communication component 905.Audio component further includes at least one loudspeaker, is used for output audio signal.I/O
Interface 904 provides interface between processor 901 and other interface modules, other above-mentioned interface modules can be keyboard, mouse,
Button etc..These buttons can be virtual push button or entity button.Communication component 905 is for the electronic equipment 900 and other
Wired or wireless communication is carried out between equipment.Wireless communication, such as Wi-Fi, bluetooth, near-field communication (Near Field
Communication, abbreviation NFC), 2G, 3G or 4G or they one or more of combination, therefore corresponding communication
Component 905 may include: Wi-Fi module, bluetooth module, NFC module.
In one exemplary embodiment, electronic equipment 900 can be by one or more application specific integrated circuit
(Application Specific Integrated Circuit, abbreviation ASIC), digital signal processor (Digital
Signal Processor, abbreviation DSP), digital signal processing appts (Digital Signal Processing Device,
Abbreviation DSPD), programmable logic device (Programmable Logic Device, abbreviation PLD), field programmable gate array
(Field Programmable Gate Array, abbreviation FPGA), controller, microcontroller, microprocessor or other electronics member
Part is realized, for executing above-mentioned snow-smelting method.
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of above-mentioned snow-smelting method is realized when program instruction is executed by processor.For example, the computer readable storage medium can be with
For the above-mentioned memory 902 including program instruction, above procedure instruction can be executed by the processor 901 of electronic equipment 900 with complete
At above-mentioned snow-smelting method.
Figure 10 is the block diagram of a kind of electronic equipment 1000 shown according to an exemplary embodiment.For example, electronic equipment
1000 may be provided as a server.Referring to Fig.1 0, electronic equipment 1000 includes processor 1022, and quantity can be one
Or multiple and memory 1032, for storing the computer program that can be executed by processor 1022.It is stored in memory 1032
Computer program may include it is one or more each correspond to one group of instruction module.In addition, processor
1022 can be configured as the execution computer program, to execute above-mentioned snow-smelting method.
In addition, electronic equipment 1000 can also include power supply module 1026 and communication component 1050, the power supply module 1026
It can be configured as the power management for executing electronic equipment 1000, which can be configured as realization electronic equipment
1000 communication, for example, wired or wireless communication.In addition, the electronic equipment 1000 can also include that input/output (I/O) connects
Mouth 1058.Electronic equipment 1000 can be operated based on the operating system for being stored in memory 1032, such as Windows
ServerTM, Mac OS XTM, UnixTM, LinuxTM etc..
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of above-mentioned snow-smelting method is realized when program instruction is executed by processor.For example, the computer readable storage medium can be with
For the above-mentioned memory 1032 including program instruction, above procedure instruction can be executed by the processor 1022 of electronic equipment 1000 with
Complete above-mentioned snow-smelting method.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of snow-smelting method is applied to solar junction box, wherein the solar junction box includes bypass diode,
It is characterized in that, the snow-smelting method includes:
Judge whether current time is daytime；
If the current time is daytime, current environmental temperature, the operating voltage of solar cell module are obtained in real time；
If the current environmental temperature is less than the first preset temperature threshold and the operating voltage is less than the first predeterminated voltage threshold
Value, then control switch disconnects, so that the bypass diode in parallel with the solar cell module stops working.
2. if the method according to claim 1, wherein default less than first in the current environmental temperature
Temperature threshold and the operating voltage are less than the first predetermined voltage threshold, then control switch disconnects, so that with the solar energy
After the step of bypass diode of battery component parallel connection stops working, the method also includes:
The operating current of the solar cell module is obtained in real time；
If the current environmental temperature is greater than the second preset temperature threshold or the operating voltage is greater than the second predeterminated voltage threshold
Value or the operating current are greater than predetermined current threshold, then close the switch described in control, so that the bypass diode is just
Often work, wherein second preset temperature threshold is greater than first preset temperature threshold, second predetermined voltage threshold
Greater than first predetermined voltage threshold；
It returns and described the step of whether current time is daytime is judged.
3. method according to claim 1 or 2, which is characterized in that the method also includes:
If the current time is night, the current environmental temperature is obtained in real time；
Determine whether the current environmental temperature is less than third preset temperature threshold；
If the current environmental temperature is less than the third preset temperature threshold, controls the switch and disconnect.
4. if according to the method described in claim 3, it is characterized in that, be less than the third in the current environmental temperature
Preset temperature threshold, then after controlling the step of switch disconnects, the method also includes:
Determine whether the current environmental temperature is greater than the 4th preset temperature threshold, wherein the 4th preset temperature threshold is big
In the third preset temperature threshold；
If the current environmental temperature is greater than the 4th preset temperature threshold, closed the switch described in control；Sentence described in return
The step of whether disconnected current time is daytime.
5. a kind of solar junction box characterized by comprising voltage sensor (11), temperature sensor (12), controller
(13), the bypass diode in parallel with solar cell module (2) (14) and the bypass diode (14) concatenated switch
(15)；
The voltage sensor (11), it is in parallel with the solar cell module (2), and connect with the controller (13), it uses
In the operating voltage of the detection solar cell module (2), and the operating voltage is sent to the controller (13)；
The temperature sensor (12), connect with the controller (13), for detecting current environmental temperature, and will be described current
Environment temperature is sent to the controller (13)；
The controller (13) connect with the switch (15), wherein the controller (13) requires 1-4 for perform claim
Any one of the method the step of.
6. solar junction box according to claim 5, which is characterized in that the solar junction box further include:
Current sensor (16) is connected with the solar module (2), and is connect with the controller (13), for detecting
The operating current of the solar cell module (2), and the operating current is sent to the controller (13).
7. solar junction box according to claim 5 or 6, which is characterized in that the solar junction box further includes this
Body (17), the voltage sensor (11), the temperature sensor (12), the controller (13), the bypass diode
(14), the switch (15) is arranged in the ontology (17).
8. a kind of solar power system characterized by comprising
Multiple solar cell modules (2) being sequentially connected in series, for converting solar energy into direct current；
It corresponds and connects with each solar cell module (2) in the multiple solar cell module (2) being sequentially connected in series
The solar junction box (1) connect, wherein the solar junction box (1) is solar energy described in any one of claim 5-7
Terminal box；And
Photovoltaic converter (3), it is in parallel with each solar cell module (2) respectively, for the direct current to be converted into
Alternating current.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of any one of claim 1-4 the method is realized when row.
10. a kind of electronic equipment characterized by comprising
Memory is stored thereon with computer program；
Processor, for executing the computer program in the memory, to realize described in any one of claim 1-4
The step of method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556363.8A CN109802632A (en) | 2018-12-19 | 2018-12-19 | Snow melting method, solar junction box, solar power generation system, medium and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556363.8A CN109802632A (en) | 2018-12-19 | 2018-12-19 | Snow melting method, solar junction box, solar power generation system, medium and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109802632A true CN109802632A (en) | 2019-05-24 |
Family
ID=66557297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811556363.8A Pending CN109802632A (en) | 2018-12-19 | 2018-12-19 | Snow melting method, solar junction box, solar power generation system, medium and equipment |
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| CN (1) | CN109802632A (en) |
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| CN110138331A (en) * | 2019-06-11 | 2019-08-16 | 安徽昂科丰光电科技有限公司 | A kind of photovoltaic module realizes the electric heating switching control method of Domino formula automatic snow-melting |
| CN110212633A (en) * | 2019-06-11 | 2019-09-06 | 中国科学技术大学先进技术研究院 | A kind of control module and system of achievable photovoltaic module Domino formula automatic snow-melting |
| CN111042456A (en) * | 2019-12-25 | 2020-04-21 | 安徽环瑞电热器材有限公司 | Heating snow melting method, system and readable storage medium |
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