CN110138331A - A kind of photovoltaic module realizes the electric heating switching control method of Domino formula automatic snow-melting - Google Patents
A kind of photovoltaic module realizes the electric heating switching control method of Domino formula automatic snow-melting Download PDFInfo
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- CN110138331A CN110138331A CN201910499374.5A CN201910499374A CN110138331A CN 110138331 A CN110138331 A CN 110138331A CN 201910499374 A CN201910499374 A CN 201910499374A CN 110138331 A CN110138331 A CN 110138331A
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- photovoltaic module
- photovoltaic
- power supply
- module
- melting
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- 238000002844 melting Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005485 electric heating Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000008018 melting Effects 0.000 abstract description 15
- 238000010248 power generation Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000010257 thawing Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241000216843 Ursus arctos horribilis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
- H02S40/12—Means for removing snow
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0019—Circuit arrangements
-
- 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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- Photovoltaic Devices (AREA)
Abstract
A kind of photovoltaic module proposed by the present invention realizes the electric heating switching control method of Domino formula automatic snow-melting, comprising the following steps: when the first detected value reaches first threshold, by the first photovoltaic module to the second photovoltaic module reverse power supply；When the second detected value reaches second threshold, third photovoltaic module reverse power supply is given by the first photovoltaic module and the second photovoltaic module；When third detected value reaches third threshold value, by the first photovoltaic module, the second photovoltaic module and third photovoltaic module to the 4th photovoltaic module reverse power supply；And so on；When M-1 detected value reaches M-1 threshold value, by the first photovoltaic module to M-1 photovoltaic module to M photovoltaic module reverse power supply.The present invention is by reverse power supply to melt the accumulated snow on photovoltaic module, realize automation and self energizing of the photovoltaic module in accumulated snow cleaning, with the increase of the photovoltaic module for power generation, electric conversion efficiency is gradually promoted, Domino (dominoes) effect is realized, the snow melting time is advantageously reduced.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation more particularly to a kind of photovoltaic module to realize Domino formula automatic snow-melting
Electric heating switching control method.
Background technique
It is arranged in one Nian Zhongxiang of roof photovoltaic power generation system of latitude area (such as Northeast China, Canada, Northern Europe) higher
When being frequently encountered the problem of causing system not generate electricity because of accumulated snow in long-time, and traditional snow removing mode is first is that by manually sweeping
Snow sprays the mode of hot water, salting or spraying snow-melting agent to remove the accumulated snow of photovoltaic plate surface.Not only taken by the way of artificial
When it is laborious, at high cost, and be easily damaged photovoltaic panel.Second snow removing mode is in the case where photovoltaic panel has snowberg to photovoltaic
Plate reverse power supply heats photovoltaic panel using the electrode connecting line grizzly bar in photovoltaic panel as heating wire.Past this method needs outer
Portion's power supply power supply, the power that when starting needs is very big, not only power consumption, but also while starting requires manual intervention.Institute is in this way extremely
The present is never generalizable.The additionally mounted roof of photovoltaic panel, if can not timely snow melting, it is easier to cause room
The accumulation repeatedly for pushing up accumulated snow, increases the requirement to roof load-bearing, is unfavorable for the popularization of photovoltaic roof.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of photovoltaic modulies to realize the automation of Domino formula
The electric heating switching control method of snow.
A kind of photovoltaic module proposed by the present invention realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, comprising the following steps:
When the first detected value reaches first threshold, by the first photovoltaic module to the second photovoltaic module reverse power supply；
When the second detected value reaches second threshold, third photovoltaic module is given by the first photovoltaic module and the second photovoltaic module
Reverse power supply；
When third detected value reaches third threshold value, pass through the first photovoltaic module, the second photovoltaic module and third photovoltaic module
To the 4th photovoltaic module reverse power supply；
And so on；
When M-1 detected value reaches M-1 threshold value, by the first photovoltaic module to M-1 photovoltaic module to M photovoltaic group
Part reverse power supply；
When M detected value reaches M threshold value, external loading is given to power by the first photovoltaic module to M photovoltaic module, M
≧5。
Preferably, the concrete mode of N photovoltaic module reverse power supply is given by the first photovoltaic module to N-1 photovoltaic module
Are as follows: the first photovoltaic module is connected to form closed circuit to N photovoltaic module, wherein N photovoltaic module and N-1 photovoltaic group
The connection of part homopolarity, N photovoltaic module are connect with the first photovoltaic module homopolarity, K photovoltaic module and the heteropolar company of K+1 photovoltaic module
It connects, 2≤N≤M, 1≤K≤N-2.
Preferably, the second detected value is current detection value of first photovoltaic module to the second photovoltaic module reverse power supply, J
Detected value is current detection value of first photovoltaic module to J-1 photovoltaic module to J photovoltaic module reverse power supply, 3≤J≤M.
Preferably, S detected value is the pressure detection value on S photovoltaic module, 2≤S≤M.
Preferably, the first detected value is electrical ginseng when the first photovoltaic module to M photovoltaic module is powered to external loading
Number.
Preferably, the output power of I photovoltaic module is greater than the output power of -1 photovoltaic module of I, 3≤I≤M.
Preferably, the quantity for the photovoltaic panel for including in I photovoltaic module is greater than the photovoltaic panel in -1 photovoltaic module of I included
Quantity.
Preferably, the photovoltaic panel for including in the photovoltaic panel that includes in the second photovoltaic module, third photovoltaic module is to M photovoltaic
The photovoltaic panel for including in component is installed on the same clinoplain P；Photovoltaic panel on clinoplain P is arranged in matrix, edge
In a column photovoltaic panel of the inclined direction of clinoplain P, the photovoltaic panel belonged in L photovoltaic module, which is located at, belongs to G photovoltaic
The lower section of photovoltaic panel in component, 2≤L ﹤ G≤M.
Preferably, the photovoltaic panel for including in the first photovoltaic module is mounted on clinoplain P.
Preferably, the photovoltaic panel for including in the first photovoltaic module is vertically-mounted.
A kind of photovoltaic module proposed by the present invention realizes the electric heating switching control method of Domino formula automatic snow-melting, passes through light
Volt component reverse power supply hair thermal property clears up the accumulated snow on photovoltaic module, realizes photovoltaic module in accumulated snow cleaning
Automation and self energizing.It can effectively be solved under the premise of not using external power supply in photovoltaic panel because of accumulated snow through the invention
The problem of photovoltaic power generation quantity declines caused by covering.
In the present invention, with the increase of the photovoltaic module for reverse power supply, it is reversed the photovoltaic module acquisition of power supply
Power is increasing, so that increasing trend is presented in the operating power for being reversed the photovoltaic module of power supply during reverse power supply.
A kind of photovoltaic module proposed by the present invention realizes the electric heating switching control method of Domino formula automatic snow-melting for leading to
When crossing reverse power supply thawing accumulated snow, with the increase of the photovoltaic module for power generation, electric conversion efficiency is gradually promoted, and is realized
Domino (dominoes) effect is conducive to improve snow melting efficiency, reduces the snow melting time.
Detailed description of the invention
Fig. 1 is the electric heating switching control method stream that a kind of photovoltaic module proposed by the present invention realizes Domino formula automatic snow-melting
Cheng Tu；
Fig. 2 is to realize that photovoltaic panel is grouped schematic diagram in method shown in Fig. 1；
Fig. 3 is the circuit diagram for realizing method shown in Fig. 1 that embodiment 2 provides；
Fig. 4 is the equivalent circuit diagram of embodiment illustrated in fig. 3；
Fig. 5 is the circuit diagram for realizing method shown in Fig. 1 that embodiment 3 provides；
Fig. 6 is the equivalent circuit diagram of embodiment illustrated in fig. 5.
Specific embodiment
It include one piece or muti-piece photovoltaic panel in photovoltaic module mentioned in the present invention；Photovoltaic module includes muti-piece photovoltaic panel
When, photovoltaic module is that the photo-voltaic power supply formed is superimposed by power by muti-piece photovoltaic panel.Specifically, photovoltaic module includes muti-piece light
When lying prostrate plate, muti-piece photovoltaic panel is connected and/or is connected in parallel.
Homopolarity connection mentioned in the present invention indicates, when two photovoltaic modulies connect, the anode connection of a photovoltaic module
The anode of another photovoltaic module, alternatively, the cathode of a photovoltaic module connects the cathode of another photovoltaic module.
Heteropolar connection mentioned in the present invention indicates, when two photovoltaic modulies connect, the anode connection of a photovoltaic module
The cathode of another photovoltaic module.
In the present invention, the first polar terminals and the second polar terminals are the positive and negative anodes of electrical component, specifically, working as the first pole
Property terminal be anode, the second polar terminals are then cathode；Alternatively, when the first polar terminals are cathode, the second polar terminals are then
Anode.
Referring to Fig.1, a kind of photovoltaic module proposed by the present invention realizes the electric heating conversion and control side of Domino formula automatic snow-melting
Method, comprising the following steps:
When the first detected value reaches first threshold, by the first photovoltaic module to the second photovoltaic module reverse power supply；
When the second detected value reaches second threshold, third photovoltaic module is given by the first photovoltaic module and the second photovoltaic module
Reverse power supply；
When third detected value reaches third threshold value, pass through the first photovoltaic module, the second photovoltaic module and third photovoltaic module
To the 4th photovoltaic module reverse power supply；
And so on；
When M-1 detected value reaches M-1 threshold value, by the first photovoltaic module to M-1 photovoltaic module to M photovoltaic group
Part reverse power supply；
When M detected value reaches M threshold value, external loading is given to power by the first photovoltaic module to M photovoltaic module.
In present embodiment, when giving N photovoltaic module reverse power supply by the first photovoltaic module to N-1 photovoltaic module, 2
≤ N≤M, by the output power of cumulative first photovoltaic module to N-1 photovoltaic module, so that N photovoltaic module is in big voltage
It generates heat under reverse power supply.In this way, N photovoltaic module can be passed through when being covered with accumulated snow in the photovoltaic panel in N photovoltaic module
Accumulated snow is melted in fever, clears up convenient for accumulated snow.
In present embodiment, thermal property is sent out by photovoltaic module reverse power supply, the accumulated snow on photovoltaic module is carried out clearly
Reason realizes automation and self energizing of the photovoltaic module in accumulated snow cleaning.And with the cleaning of accumulated snow, N value is continuously increased,
The output power for being reversed the photovoltaic module acquisition of power supply is increasing, is conducive to improve heating efficiency, to improve snow melting
Efficiency.When it is implemented, M≤5 may be selected.
Specifically, in present embodiment, it is reversed to N photovoltaic module by the first photovoltaic module to N-1 photovoltaic module
The concrete mode of power supply are as follows: the first photovoltaic module connects to form closed circuit to N photovoltaic module, wherein N photovoltaic module
It is connect with N-1 photovoltaic module homopolarity, N photovoltaic module is connect with the first photovoltaic module homopolarity, K photovoltaic module and K+1
The heteropolar connection of photovoltaic module, 2≤N≤M, 1≤K≤N-2.In this way, the first photovoltaic module to N-1 photovoltaic module connects to form electricity
Source, N-1 photovoltaic module is as power consuming load, so that the operating voltage U that N-1 photovoltaic module obtainsNFor the first photovoltaic module
Supply voltage is the sum of to N-1 photovoltaic module supply voltage, i.e.,uiFor the supply voltage of the i-th photovoltaic module.
In present embodiment, under identical illumination condition, the output power of I photovoltaic module is greater than -1 photovoltaic module of I
Output power, 3≤I≤M specifically may be configured as, and the quantity for the photovoltaic panel for including in I photovoltaic module is greater than -1 photovoltaic of I
The quantity for the photovoltaic panel for including in component.In this way, as the output power that the photovoltaic module for being reversed power supply obtains is increasing,
Realize be reversed the photovoltaic panel that the photovoltaic module of power supply includes quantity it is also more and more, realize the photovoltaic of same batch fever
The quantity of plate and the proportional relationship of output power summation, to lead under the premise of guaranteeing the heating efficiency of single photovoltaic panel
Cross the snow melting efficiency for improving and improving photovoltaic panel with the photovoltaic panel quantity that batch is generated heat.
Specifically, in present embodiment, the light that includes in the photovoltaic panel that includes in the second photovoltaic module, third photovoltaic module
The photovoltaic panel that volt plate includes into M photovoltaic module is installed on the same clinoplain P；Photovoltaic panel on clinoplain P
It arranges in matrix, in the column photovoltaic panel along the inclined direction of clinoplain P, belongs to the photovoltaic panel position in L photovoltaic module
In the lower section for belonging to photovoltaic panel in G photovoltaic module, 2≤L ﹤ G≤M.
In this way, the control method is applied to the photovoltaic panel on clinoplain P, passes through photovoltaic module in present embodiment
When spontaneous heating snow melting, the accumulated snow in photovoltaic panel melts by the plane close to photovoltaic panel, to facilitate accumulated snow flat along inclination
Face P slides, and improves accumulated snow cleaning efficiency.And in present embodiment, same row photovoltaic panel is realized on clinoplain P under
The sequence generated heat upwards is conducive to avoid the accumulated snow of lower section to stop top to realize the sequence for clearing up accumulated snow from bottom to top
The landing of accumulated snow, to be conducive to further slide cooperation by snow melting and accumulated snow to improve accumulated snow cleaning efficiency.
Specifically, in present embodiment, can by the way that the photovoltaic panel on clinoplain P is formed a seamless flat surface, with into
One step reduces the resistance that accumulated snow slides.
In present embodiment, the photovoltaic panel for including in the first photovoltaic module is mounted on clinoplain P.In this way, in accumulated snow
When thawing, it can for example clear up the accumulated snow eliminated on the first photovoltaic module manually by other means, then pass through the first photovoltaic group
Part is powered to the second photovoltaic module, then is powered by the first photovoltaic module and the second photovoltaic module to third photovoltaic module.
When it is implemented, it is vertically-mounted to may also set up the photovoltaic panel for including in the first photovoltaic module, to avoid the first photovoltaic
Component guarantees that the first photovoltaic module is in photoelectric conversion state in real time by snow cover.
Specifically, the second detected value is the first photovoltaic module to the second photovoltaic module reverse power supply in present embodiment
Current detection value, J detected value are electric current of first photovoltaic module to J-1 photovoltaic module to J photovoltaic module reverse power supply
Detected value, 2≤J≤M.Specifically, when J photovoltaic module is by the first photovoltaic module to J-1 photovoltaic module reverse power supply, with
The thawing of accumulated snow on J photovoltaic module, J photovoltaic module light-receiving area component increase, so that the first photovoltaic module is to J light
The electric current in current supply circuit that volt component is constituted gradually rises.So in present embodiment, whether can be reached by the second detected value
Judge whether the accumulated snow on the second photovoltaic module melts to second threshold, whether J threshold decision is reached by J detected value
Whether the accumulated snow on J photovoltaic module melts.Specifically, second threshold is the first light after the snow melting on the second photovoltaic module
Component is lied prostrate to the current value of the second photovoltaic module reverse power supply, after J threshold value is the snow melting on J photovoltaic module, first
Photovoltaic module gives the current value of J photovoltaic module reverse power supply to J-1 photovoltaic module.
When it is implemented, may also set up S detected value is the pressure detection value on S photovoltaic module, 2≤S≤M.With
Snow melting on photovoltaic module, corresponding pressure detection value is smaller and smaller, and inspection when not having accumulated snow is arranged on S photovoltaic module
The pressure value measured is as S threshold value, through S detected value compared with S threshold value, can judge on S photovoltaic module
Whether accumulated snow melts.
In present embodiment, the first detected value is when the first photovoltaic module to M photovoltaic module is powered to external loading
Current value, voltage value or resistance value specifically can be used in electric parameter.
Specifically, first threshold, second threshold to M threshold value can be configured in advance in present embodiment, can also set
Corresponding model is set to be calculated in real time.For example, first threshold, second threshold are to M threshold value in combination with the work of photovoltaic panel
Characteristic is calculated according to Current Temperatures, light intensity etc..
Below in conjunction with several specific embodiments, the generation mode of photovoltaic module in above method is made furtherly
It is bright.
Embodiment 1
Present embodiments provide a kind of photovoltaic power generation control system that the snow melting of Domino formula is realized by self power generation, comprising: M
A photovoltaic module, a circuit module and a controller, circuit module are separately connected each photovoltaic module and controller.
Circuit module includes M working condition, and under the first working condition, the first photovoltaic module gives second by circuit module
Photovoltaic module reverse power supply；
Under second working condition, the first photovoltaic module and the second photovoltaic module are anti-to third photovoltaic module by circuit module
To power supply；
Under third working condition, the first photovoltaic module, the second photovoltaic module and third photovoltaic module are given by circuit module
4th photovoltaic module reverse power supply；
And so on,
Under M-2 working condition, the first photovoltaic module to M-2 photovoltaic module gives M-1 photovoltaic group by circuit module
Part reverse power supply；
Under M-1 working condition, the first photovoltaic module to M-1 photovoltaic module gives M photovoltaic module by circuit module
Reverse power supply
Under M working condition, the first photovoltaic module to M photovoltaic module is powered by circuit module to external loading.
By in this present embodiment, the first photovoltaic module is in power supply state under any working condition of circuit module,
So, can be by where the first photovoltaic module of detection when any one photovoltaic module is reversed power supply in present embodiment
The electric parameter in circuit such as current value, voltage value or resistance value judge the direction charging progress of photovoltaic module, to control
Device carries out the switching of working condition according to the electric parameter operating circuit module of acquisition.
It specifically, can also be by the second photovoltaic module, third photovoltaic when this system is applied to the snow melting in photovoltaic panel
Pressure sensor is respectively set to detect snow melting situation on component ... M photovoltaic module so that controller according to
The switching of the detected value control circuit module working condition of pressure sensor.
Specifically, in the first operative state, the first photovoltaic module is connect with the second photovoltaic module homopolarity in the present embodiment
Form closed circuit；In a second operative state, the first photovoltaic module, the second photovoltaic module connect to be formed with third photovoltaic module
Closed circuit, heteropolar connection between the first photovoltaic module and the second photovoltaic module, third photovoltaic module and the first photovoltaic module it
Between homopolarity connect, between third photovoltaic module and the second photovoltaic module homopolarity connect；Under third working condition, the first photovoltaic group
Part, the second photovoltaic module, third photovoltaic module connect to form closed circuit with the 4th photovoltaic module, the first photovoltaic module and second
Heteropolar connection between photovoltaic module, heteropolar connection between the second photovoltaic module and third photovoltaic module, the 4th photovoltaic module and
Homopolarity connects between one photovoltaic module, and homopolarity connects between the 4th photovoltaic module and third photovoltaic module；And so on, A work
Make under state, the first photovoltaic module connects to form closed circuit to A photovoltaic module, wherein A photovoltaic module and A-1 light
The connection of component homopolarity is lied prostrate, A photovoltaic module is connect with the first photovoltaic module homopolarity, and a photovoltaic module and a+1 photovoltaic module are different
Pole connection, 3≤A≤M-1,1≤a≤A-1.
Specifically, in the present embodiment, photovoltaic that photovoltaic panel quantity that the second photovoltaic module includes, third photovoltaic module include
The photovoltaic panel quantity that photovoltaic panel quantity ... the M photovoltaic module that plate quantity, the 4th photovoltaic module include includes is incremented by successively.Such as
In embodiment illustrated in fig. 2, the second photovoltaic module includes 1 piece of photovoltaic panel, and third photovoltaic module includes 2 pieces of photovoltaic panels, the n-th photovoltaic group
2 more than the photovoltaic panel quantity that the photovoltaic panel quantity that part includes includes than the (n-1)th photovoltaic module, 4≤n≤M, i.e. third photovoltaic module packet
The photovoltaic panel quantity that photovoltaic panel quantity ... the M photovoltaic module that the photovoltaic panel quantity that contains, the 4th photovoltaic module include includes is in
Arithmetic progression.When it is implemented, may also set up the photovoltaic panel quantity that the second photovoltaic module includes, the light that third photovoltaic module includes
The photovoltaic panel quantity that photovoltaic panel quantity ... the M photovoltaic module that volt plate quantity, the 4th photovoltaic module include includes in etc. compare number
Column increase, such as setting wi=2i-1, wherein wiFor the photovoltaic panel quantity for including in the i-th photovoltaic module, 2≤i≤M.
Embodiment 2
Referring to Fig. 3, relative to embodiment 1, M=6, i.e. being realized by self power generation in the present embodiment in the present embodiment
The photovoltaic power generation control system of Domino formula snow melting includes 6 photovoltaic modulies.When it is implemented, can be according in photovoltaic generating system
The photovoltaic panel quantity for including is grouped, M can minimum value 3, the photovoltaic panel quantity for including in maximum value photovoltaic generating system
The sum of.
Circuit module in the present embodiment include conducting wire d12, d13, d14, d15, d16, d1, d2, d3, d4, d5,
D61, d62, d63, d64 and d65.
The first polar terminals of first photovoltaic module X1 are separately connected by conducting wire d12, d13, d14, d15 and d16
The first polar terminals of second photovoltaic module X2, the first polar terminals of third photovoltaic module X3, the 4th photovoltaic module X4
First polar terminals of one polar terminals, the first polar terminals of the 5th photovoltaic module X5 and the 6th photovoltaic module X6.
The second polar terminals of first photovoltaic module X1 pass through the first pole of the second photovoltaic module of conducting wire d1 connection X2
Property terminal, the second polar terminals of the second photovoltaic module X2 pass through the first polarity of conducting wire d2 connection third photovoltaic module X3
Terminal, the second polar terminals of third photovoltaic module X3 pass through the first polar end of the 4th photovoltaic module X4 of conducting wire d3 connection
Son, the second polar terminals of the 4th photovoltaic module X4 pass through the first polar end of the 5th photovoltaic module X5 of conducting wire d4 connection
Son, the second polar terminals of the 5th photovoltaic module X5 pass through the first polar end of the 6th photovoltaic module X6 of conducting wire d5 connection
Son.
The second polar terminals of 6th photovoltaic module X6 are separately connected by conducting wire d61, d62, d63, d64 and d65
The second polar terminals of first photovoltaic module X1, the second polar terminals of the second photovoltaic module X2, third photovoltaic module X3
Second polar terminals of two polar terminals, the second polar terminals of the 4th photovoltaic module X4 and the 5th photovoltaic module X5.
In this way, by controlling the on-off of each conducting wire, can control the generation mode of each photovoltaic module in the present embodiment.
When d61, d62 and d12 conducting, the first photovoltaic module X1 gives the second photovoltaic module X2 reverse power supply；
When d1, d62, d63 and d13 conducting, the first photovoltaic module X1 and the second photovoltaic module X2 give third photovoltaic module
X3 reverse power supply；
When d1, d2, d63, d64, d14 conducting, the first photovoltaic module X1, the second photovoltaic module X2 and third photovoltaic module
X3 gives the 4th photovoltaic module X4 reverse power supply；
When d1, d2, d3, d64, d65, d15 conducting, the first photovoltaic module X1, the second photovoltaic module X2, third photovoltaic group
Part X3 and the 4th photovoltaic module X4 gives the 5th photovoltaic module X5 reverse power supply；
When d1, d2, d3, d4, d65, d16 conducting, the first photovoltaic module X1, the second photovoltaic module X2, third photovoltaic group
Part X3, the 4th photovoltaic module X4 and the 5th photovoltaic module X5 give the 6th photovoltaic module X6 reverse power supply；
When d1, d2, d3, d4, d5 conducting when, the first photovoltaic module X1, the second photovoltaic module X2, third photovoltaic module X3,
4th photovoltaic module X4, the 5th photovoltaic module X5 and the 6th photovoltaic module X6 connect to be formed to the power supply electricity of external loading power generation
Source, at this point, first polar terminals of the first polar terminals of the first photovoltaic module X1 as power supply, the 6th photovoltaic module X6
Second polar terminals of second polar terminals as power supply.
Specifically, can be switched by being arranged in conducting wire in the present embodiment, controller is separately connected each switch, from
And controller passes through the on-off of the corresponding conducting wire of switch control, to control the generation mode of photovoltaic module.
Or referring to Fig. 4, the second polar terminals that may also set up the first photovoltaic module X1 are connected respectively by relay SB1
Meet conducting wire d1 and d61；The first polar terminals that the second photovoltaic module X2 is arranged are separately connected conductor wire by relay SA2
Road d1 and d12, setting the second photovoltaic module X2 the second polar terminals by relay SB2 be separately connected conducting wire d2 with
d62；The first polar terminals that third photovoltaic module X3 is arranged are separately connected conducting wire d2 and d13 by relay SA3, setting
The second polar terminals of third photovoltaic module X3 are separately connected conducting wire d3 and d63 by relay SB3；4th photovoltaic is set
The first polar terminals of component X4 are separately connected conducting wire d3 and d14 by relay SA4, the 4th photovoltaic module X4's of setting
Second polar terminals are separately connected conducting wire d4 and d64 by relay SB4；The first polarity of 5th photovoltaic module X5 is set
Terminal is separately connected conducting wire d4 and d15 by relay SA5, and the second polar terminals of the 5th photovoltaic module X5 of setting pass through
Relay SB5 is separately connected conducting wire d5 and d65；The first polar terminals that the 6th photovoltaic module X6 is arranged pass through relay
SA6 is separately connected conducting wire d5 and d16.In this way, controller is separately connected each relay, will pass through leading for control relay
The on-off of logical each conducting wire of direction controlling.
Specifically, external loading accesses circuit module by feeder ear out, the first photovoltaic module X1's in the present embodiment
It is connected between first polar terminals and the first polar terminals of feeder ear by switch element, the second pole of the 6th photovoltaic module X6
Property terminal and the second polar terminals of feeder ear between connected by switch element, so as to when photovoltaic module is reversed power supply,
Pass through the connection of switch element disconnecting circuit module and external loading.Switch or relay etc. can be used in switch element.
Embodiment 3
Referring to Fig. 5, the present embodiment relative to embodiment 1, M=6, circuit module include conducting wire t12, t23, t34,
T45, t56, y12, y23, y34, y45, y56, t21, t31, t41, t51 and t61.
The first polar terminals of first photovoltaic module X1 are separately connected the second photovoltaic module by conducting wire t12 and y12
Second polar terminals of the first polar terminals of X2 and the second photovoltaic module X2；
The first polar terminals of second photovoltaic module X2 are separately connected third photovoltaic module by conducting wire t23 and y23
The first polar terminals of X3 and the second polar terminals of third photovoltaic module X3；
The first polar terminals of third photovoltaic module X3 are separately connected the 4th photovoltaic module by conducting wire t34 and y34
The first polar terminals of X4 and the second polar terminals of the 4th photovoltaic module X4；
The first polar terminals of 4th photovoltaic module X4 are separately connected the 5th photovoltaic module by conducting wire t45 and y45
The first polar terminals of X5 and the second polar terminals of the 5th photovoltaic module X5；
The first polar terminals of 5th photovoltaic module X5 are separately connected the 6th photovoltaic module by conducting wire t56 and y56
The first polar terminals of X6 and the second polar terminals of the 6th photovoltaic module X6；
The second polar terminals of second photovoltaic module X2, the second polar terminals of third photovoltaic module X3, the 4th photovoltaic group
The second polar terminals, the second polar terminals of the 5th photovoltaic module X5 and the second polar terminals of the 6th photovoltaic module X6 of part X4
Connect the second polar terminals of the first photovoltaic module X1 with t61 by conducting wire t21, t31, t41, t51 respectively.
Each conducting wire all has short-circuit (conducting) and breaking (disconnection) two states.
When conducting wire t12 and t21 are connected, then the first photovoltaic module X1 gives the second photovoltaic module X2 reverse power supply；
When conducting wire y12, t23 and t31 are connected, then the first photovoltaic module X1 and the second photovoltaic module X2 give third photovoltaic
Component X3 reverse power supply；
When conducting wire y12, y23, t34 and t41 are connected, then the first photovoltaic module X1, the second photovoltaic module X2 and third
Photovoltaic module X3 gives the 4th photovoltaic module X4 reverse power supply；
When conducting wire y12, y23, y34, t45 and t51 are connected, then the first photovoltaic module X1, the second photovoltaic module X2, the
Three photovoltaic module X3 and the 4th photovoltaic module X4 give the 5th photovoltaic module X5 reverse power supply；
When conducting wire y12, y23, y34, y45, t56 and t61 be connected, the first photovoltaic module X1, the second photovoltaic module X2,
Third photovoltaic module X3, the 4th photovoltaic module X4 and the 5th photovoltaic module X5 give the 6th photovoltaic module X6 reverse power supply；
As conducting wire y12, y23, y34, y45 and y56 conducting, the first photovoltaic module X1, the second photovoltaic module X2, third
Photovoltaic module X3, the 4th photovoltaic module X4, the 5th photovoltaic module X5 and the 6th photovoltaic module X6 connect to be formed and send out to external loading
The power supply of electricity, at this point, first polar terminals of the first polar terminals of the first photovoltaic module X1 as power supply, the 6th
Second polar terminals of the second polar terminals of photovoltaic module X6 as power supply.
Specifically, can be switched by being arranged in conducting wire in the present embodiment, controller is separately connected each switch, from
And controller passes through the on-off of the corresponding conducting wire of switch control, to control the generation mode of photovoltaic module.
Alternatively, the first polar terminals of the second photovoltaic module X2 are separately connected conductor wire by relay RA2 referring to Fig. 6
Road t12, t23 and y23, the first polar terminals of third photovoltaic module X3 by relay RA3 be separately connected conducting wire t23,
The first polar terminals of t34 and y34, the 4th photovoltaic module X4 by relay RA4 be separately connected conducting wire t34, t45 and
The first polar terminals of y45, the 5th photovoltaic module X5 are separately connected conducting wire t45, t56 and y56 by relay RA5, the
The first polar terminals of six photovoltaic module X6 pass through relay RA6 connection conducting wire t56；The second pole of second photovoltaic module X2
Property terminal is separately connected conducting wire t21 and y12 by relay RB2, and the second polar terminals of third photovoltaic module X3 pass through
Relay RB3 is separately connected conducting wire t31 and y23, and the second polar terminals of the 4th photovoltaic module X4 pass through relay RB4 points
Not Lian Jie conducting wire t41 and y34, the second polar terminals of the 5th photovoltaic module X5 are separately connected conduction by relay RB5
The second polar terminals of route t51 and y45, the 6th photovoltaic module X6 by relay RB6 be separately connected conducting wire t61 and
y56.In this way, controller is separately connected each relay, each conducting wire is controlled will pass through the conducting direction of control relay
On-off.
Specifically, in embodiment, external loading accesses circuit module by feeder ear out, the of the first photovoltaic module X1
It is connected between two polar terminals and the second polar terminals of feeder ear by switch element, the first polarity of the 6th photovoltaic module X6
It is connected between terminal and the first polar terminals of feeder ear by switch element, to lead to when photovoltaic module is reversed power supply
Cross the connection of switch element disconnecting circuit module and external loading.Switch or relay etc. can be used in switch element.
Specifically, in the present embodiment, the first polar terminals of the 6th photovoltaic module X6 and the first polar terminals of feeder ear
Between connected by relay RA6, between the second polar terminals of the first photovoltaic module X1 and the second polar terminals of feeder ear
It is directly connected to.
The above, preferable specific embodiment only of the present invention, but protection scope of the present invention not office
Be limited to this, anyone skilled in the art in the technical scope disclosed by the present invention, technology according to the present invention
Scheme and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. the electric heating switching control method that a kind of photovoltaic module realizes Domino formula automatic snow-melting, which is characterized in that including following
Step:
When the first detected value reaches first threshold, by the first photovoltaic module to the second photovoltaic module reverse power supply；
It is reversed to third photovoltaic module by the first photovoltaic module and the second photovoltaic module when the second detected value reaches second threshold
Power supply；
When third detected value reaches third threshold value, by the first photovoltaic module, the second photovoltaic module and third photovoltaic module to the
Four photovoltaic module reverse power supply；
And so on；
It is anti-to M photovoltaic module by the first photovoltaic module to M-1 photovoltaic module when M-1 detected value reaches M-1 threshold value
To power supply；
When M detected value reaches M threshold value, external loading is given to power by the first photovoltaic module to M photovoltaic module, M≤5.
2. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the concrete mode of N photovoltaic module reverse power supply is given by the first photovoltaic module to N-1 photovoltaic module are as follows: by first
Photovoltaic module connects to form closed circuit to N photovoltaic module, wherein N photovoltaic module and N-1 photovoltaic module homopolarity connect
It connects, N photovoltaic module is connect with the first photovoltaic module homopolarity, K photovoltaic module and the heteropolar connection of K+1 photovoltaic module, 2≤N
≤ M, 1≤K≤N-2.
3. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the second detected value is current detection value of first photovoltaic module to the second photovoltaic module reverse power supply, and J detected value is the
One photovoltaic module gives the current detection value of J photovoltaic module reverse power supply, 3≤J≤M to J-1 photovoltaic module.
4. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, S detected value is the pressure detection value on S photovoltaic module, 2≤S≤M.
5. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the first detected value is electric parameter when the first photovoltaic module to M photovoltaic module is powered to external loading.
6. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the output power of I photovoltaic module is greater than the output power of -1 photovoltaic module of I, 3≤I≤M.
7. photovoltaic module as claimed in claim 6 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the quantity for the photovoltaic panel for including in I photovoltaic module is greater than the quantity of the photovoltaic panel in -1 photovoltaic module of I included.
8. photovoltaic module as described in claim 1 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the photovoltaic panel for including in the photovoltaic panel that includes in the second photovoltaic module, third photovoltaic module includes into M photovoltaic module
Photovoltaic panel be installed on the same clinoplain P；Photovoltaic panel on clinoplain P is arranged in matrix, along clinoplain P
Inclined direction a column photovoltaic panel in, the photovoltaic panel that belongs in L photovoltaic module is located at and belongs to photovoltaic panel in G photovoltaic module
Lower section, 2≤L ﹤ G≤M.
9. photovoltaic module as claimed in claim 8 realizes the electric heating switching control method of Domino formula automatic snow-melting, feature
It is, the photovoltaic panel for including in the first photovoltaic module is mounted on clinoplain P.
10. photovoltaic module as claimed in claim 1 or 8 realizes the electric heating switching control method of Domino formula automatic snow-melting,
It is characterized in that, the photovoltaic panel for including in the first photovoltaic module is vertically-mounted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499374.5A CN110138331B (en) | 2019-06-11 | 2019-06-11 | Electric-heat conversion control method for realizing Domino type automatic snow melting by photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499374.5A CN110138331B (en) | 2019-06-11 | 2019-06-11 | Electric-heat conversion control method for realizing Domino type automatic snow melting by photovoltaic module |
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| CN110138331A true CN110138331A (en) | 2019-08-16 |
| CN110138331B CN110138331B (en) | 2021-02-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227216A (en) * | 2013-04-25 | 2013-07-31 | 苏州盖娅智能科技有限公司 | Intelligent snow removing device and control method thereof |
| CN106571774A (en) * | 2016-10-28 | 2017-04-19 | 阳光电源股份有限公司 | Battery panel snow melting method, controller and photovoltaic power generation system |
| US20190089296A1 (en) * | 2017-09-19 | 2019-03-21 | Solasido Korea Co.,Ltd. | Snow removal apparatus for solar panel and method of operating the same |
| CN109802632A (en) * | 2018-12-19 | 2019-05-24 | 汉能移动能源控股集团有限公司 | Snow melting method, solar junction box, solar power generation system, medium and equipment |
-
2019
- 2019-06-11 CN CN201910499374.5A patent/CN110138331B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227216A (en) * | 2013-04-25 | 2013-07-31 | 苏州盖娅智能科技有限公司 | Intelligent snow removing device and control method thereof |
| CN106571774A (en) * | 2016-10-28 | 2017-04-19 | 阳光电源股份有限公司 | Battery panel snow melting method, controller and photovoltaic power generation system |
| US20190089296A1 (en) * | 2017-09-19 | 2019-03-21 | Solasido Korea Co.,Ltd. | Snow removal apparatus for solar panel and method of operating the same |
| CN109802632A (en) * | 2018-12-19 | 2019-05-24 | 汉能移动能源控股集团有限公司 | Snow melting method, solar junction box, solar power generation system, medium and equipment |
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