CN104508834B - The photovoltaic generating system of none-disk terminal diode - Google Patents
The photovoltaic generating system of none-disk terminal diode Download PDFInfo
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- CN104508834B CN104508834B CN201380035972.8A CN201380035972A CN104508834B CN 104508834 B CN104508834 B CN 104508834B CN 201380035972 A CN201380035972 A CN 201380035972A CN 104508834 B CN104508834 B CN 104508834B
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- 238000005516 engineering process Methods 0.000 description 5
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- 229910052710 silicon Inorganic materials 0.000 description 4
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 238000004377 microelectronic Methods 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 241000321453 Paranthias colonus Species 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
-
- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
There is described herein a kind of photovoltaic generating system, this system includes the solar panels without bypass diode.Solar panels include multiple photovoltaic sub-component, at least two photovoltaic sub-component parallel connection electrical connection in plurality of photovoltaic sub-component.Photovoltaic sub-component includes the photovoltaic cell group of multiple electrical connection, and at least two of which group is electrically connected in series.Photovoltaic group includes multiple photovoltaic cell string, and wherein photovoltaic cell string includes multiple photovoltaic cell being electrically connected in series.Photovoltaic cell connection in series-parallel electrically connects, and photovoltaic cell is the photovoltaic cell that micro-system enables.
Description
Cross-Reference to Related Applications
This application claims that on July 6th, 2012 submits to and entitled " PHOTOVOLTAIC POWER GENERATION
SYSTEM FREE OF BYPASS DIODES " the priority of No. 13/543,297 U.S. Patent application.This application whole
Body is incorporated into this by reference.
Statement of government interest
The present invention is according to the DE-AC04-between Sandia Corporation (Sandia Corporation) and USDOE
The exploitation of 94AL85000 contract.U.S. government has certain right for the present invention.
Background technology
The environmental problem relevant with utilizing fossil fuel power adds together with the non-renewable character of these Fossil fuels
Demand to alternative energy source.The exemplary power system utilizing regenerative resource includes solar power system, wind-power electricity generation system
System, water power electricity generation system, system for geothermal production of electricity etc..
Especially those are used for providing the system of electric power to include too to house conventional solar power system
Sun energy plate, solar panels include multiple relatively large Silicon photrouics (such as, about six inches are multiplied by six inches).Such as, single
Individual solar panels can comprise about 72 batteries.Solaode is manufactured to export certain voltage (such as, silicon electricity
0.6 volt of pond), the amount of the solar radiation of the specific wavelength no matter received at solaode, this voltage approximation perseverance
Fixed, and in solar panels, solaode is electrically connected in series, and therefore solar panels produce about 40 volts.Typical house
Solar energy system includes some (such as, 5 to 10) solar panels, and plate is electrically connected in series, thus causes hundreds of batteries
Being electrically connected in series, common output is approximately equal to the voltage of the voltage summation of individual battery.It is, however, to be noted that work as solar energy
When battery and the electrically coupled in series layout of plate, in each solar panels, the electric current of each battery must be equal.
Owing to the electric current of photovoltaic cell is proportional to the light incided on battery, if a battery in being connected in series connects
Receiving low light level, whole being connected in series has low electric current.Therefore, have low when a part for a battery or battery
During light level (such as, owing to covering), the typical solar power system configuration including some solar panels has serious electricity
Stream reduces (reducing with power output).Usually, when solar power system is arranged on house or other buildings, trees or
Other barriers may nearby, and therefore, the part covering at least assembly can frequently occur.
When across solar power system, when covering of certain pattern occurring, unless protection electric device is in position
On, otherwise solaode can be seriously damaged.Such as, if single solaode is covered by barrier, and solar energy
Every other battery in electricity generation system is the most illuminated, then this single battery can be driven into reverse breakdown, with support by
The electric current flowing that other batteries generate.In current solar electrical energy generation is installed, battery current is about 5 amperes, and silion cell
Breakdown voltage be about 60 volts or higher, this depends on the battery design for producing battery and manufacturing technology.Owing to puncturing
Not being homogeneity process across big battery, relatively large electric current (5 amperes) and relatively large power (more than 100 watts) can cause device
Break down in short circuit or open-circuit condition, thus cause misoperation and to battery, plate and/or the permanent damages installed.
Being driven into reverse breakdown for the photovoltaic cell in preventing solar electrical energy generation from installing, bypass diode is had selection
Ground across battery position, thus never photoelectric current battery transfer current and prevent these batteries enter breakdown area.But,
The use of bypass diode consumes the space during solar electrical energy generation is installed, relatively costly, and adds the assembling of solar panels
Time.And, use bypass diode that too much power can be caused to produce loss, because the general protection board of each bypass diode
/ 3rd (such as, generally having three bypass diodes in plate) of middle battery.Therefore, if a battery is shielded, from
The power being bypassed all batteries that diode covers produces and will be lost.
Summary of the invention
The following is the brief outline to theme the most in greater detail.This summary is not intended to limit claim
Scope.
Described herein is the various technology relevant with photovoltaic generating system.Do not contain more specifically, there is described herein
The photovoltaic generating system of any bypass diode.In the exemplary embodiment, photovoltaic generating system can include at least one sun
Energy plate (also known as assembly), solar panels are made up of multiple photovoltaic sub-components.Each photovoltaic sub-component can have at 50 volts
And the running voltage between 2000 volts, and therefore, multiple plates can electrically in parallel be arranged.The rated operational voltage of solar panels
In the range of being normally between 200 volts and 500 volts, this is the most optimal for customary commercial inverter,
Because the current supervision of the U.S. is limited to 600 volts, so limit although appended claim is not limited by such supervision.
Additionally, in the exemplary embodiment, the width of photovoltaic sub-component can be less than 30 centimetres and length is less than 30 centimetres, although examining
Consider the sub-component of other size.In solar panels, being arranged in parallel of photovoltaic sub-component is easy to prevent at specific sub-component or one group of son
When assembly is shielded from, across one of these sub-components relatively great amount of power of dissipation.
In another exemplary embodiment, each photovoltaic sub-component can include the group of multiple connection battery, the most often
Individual group is configured to export between 2 volts and 3 volts, and the subset of at least a part of which group is electrically connected in series.In photovoltaic module
Often group connect battery and can include multiple photovoltaic cell string, wherein photovoltaic cell connection in series-parallel electrical connection.Each photovoltaic cell string
Multiple photovoltaic cell being electrically connected in series can be included.This series/parallel/series/parallel of photovoltaic cell in solar panels
Layout is easy to prevent relatively great amount of electric current to be driven through any single photovoltaic cell, when this battery is the most shielded (and too
Other batteries in sun energy plate are illuminated) time.
According to example, can be the photovoltaic cell making micro-system be possibly realized for constructing the photovoltaic cell of solar panels,
It is configured with the running voltage between 0.3 volt and 2.0 volts.Owing to phase can be included in given solar panels
To substantial amounts of battery (such as, more than 30,000 battery), for the possible pattern that covers substantially any on solar panels, permissible
Any given battery will not be caused damage, even if this is battery operated at reverse breakdown by the quantity of power dissipated across single battery.Cause
This, solar panels described herein need not include bypass diode, and bypass diode is generally used to guarantee when this
When a little batteries one or more are operated in reverse breakdown, the battery in solar panels is not damaged by.This is because, in this article
In described solar panels, across the power dissipation of single battery not over damaging the threshold value of battery, though such battery
Breakdown.That is, battery can continue infinitely to work at reverse breakdown and be not subjected to damage, because can import in solar panels
The magnitude of current of any battery is relatively small.
As the above mentioned, the photovoltaic cell in solar panels can be that micro-system enables (microsystem-
Enabled) battery.According to example, such battery can be III-V battery, such as gallium arsenide cells, InGaP electricity
Pond or InGaAsP battery.In other exemplary embodiments of the invention, photovoltaic cell can comprise silion cell.Again in other embodiments
In, photovoltaic cell can comprise germanium photovoltaic cell.According to further example embodiment, solar panels can include tying photovoltaic electric more
Pond, wherein, each multi-junction photovoltaic battery can comprise the photovoltaic cell of multiple different band gap.According to example, at multi-junction photovoltaic battery
In each photovoltaic cell can be electrically connected in series integratedly so that the running voltage of multi-junction photovoltaic battery is equal to the most corresponding
The summation of the photovoltaic cell running voltage that micro-system enables.In another exemplary embodiment, the photovoltaic cell of independent type
Can connect selectively and be arranged in parallel, the number of the photovoltaic cell of the most electrically coupled in series layout can depend on desired output or
Medium voltage.
Other side will be by reading and understand that accompanying drawing and description understand.
Accompanying drawing explanation
Fig. 1 illustrates the exemplary solar panels comprising multiple photovoltaic sub-component.
Fig. 2 illustrates the exemplary photovoltaic sub-component of the photovoltaic group comprising multiple electrical connection photovoltaic cell.
Fig. 3 illustrates the exemplary photovoltaic set of cells comprising multiple photovoltaic cell string.
Fig. 4 illustrates another the exemplary solar panels comprising multiple photovoltaic sub-component, and photovoltaic sub-component itself comprises phase
Should multiple electrical connection photovoltaic cell groups.
Fig. 5 illustrates the photovoltaic cell that exemplary many knot micro-systems enable.
Fig. 6 illustrates the illustrative methods of the solar panels not including bypass diode for structure.
Fig. 7 illustrates the illustrative methods of the solar panels failing to include bypass diode for structure.
Detailed description of the invention
The various technology relevant with photovoltaic generating system are now described with reference to the drawings, and the most identical reference is all the time
Represent identical element.It addition, as used herein, term " exemplary " is intended to mean serving as the explanation of something or show
Example, and be not intended to indicate that preferably.
With reference to Fig. 1, exemplary solar panels 100 are illustrated, and it does not contains any bypass diode.In exemplary embodiment
In, the length of solar panels 100 can be between 1 meter and 2 meters, and width is between 0.5 meter and 1.5 meters.Additionally, solar energy
Plate 100 can be configured to export between 200 volts and 300 volts, although in other embodiments, solar panels 100 can
To be configured to output up to 2000 volts.According to particular example, solar panels 100 can be configured to export 240 volts.As
Will by understood by one of ordinary skill in the art, but, the voltage that solar panels 100 can export can depend on wherein using
The application of solar panels 100, and 200 to 300 volt range can be higher or lower than.
Solar panels 100 include multiple photovoltaic sub-component 102 to 148.Although solar panels 100 are shown as including 24
Photovoltaic sub-component, it is to be understood that, solar panels 100 can include more or less of photovoltaic sub-component, and this depends on it
Application in middle employing solar panels 100, is used for amount of available space mounted thereto for solar panels 100, and solar energy
The layout of the photovoltaic sub-component 102 to 148 in plate 100.
In the exemplary embodiment, photovoltaic sub-component 102 to 148 can be connected in parallel to each other electrical connection.Therefore, each photovoltaic
The exportable about the same voltage (such as, between 200 volts and 600 volts) of assembly.In another exemplary embodiment,
It not that each photovoltaic sub-component 102 to 148 is all electrically connected in parallel, but at least the subset in photovoltaic sub-component 102 to 148 can
To be connected to power management integrated circuits, the most such integrated circuit is configurable to export desired voltage and/or electric current,
Desired voltage and/or electric current come from the merit produced from the subset of the photovoltaic sub-component 102 to 148 being electrically connected to integrated circuit
Rate.Such as, solar panels 100 can include the single integrated circuit being directly connected to each photovoltaic sub-component 102 to 148.
So power management integrated circuits can make the final quantity of solar panels 100 output be in level predefined, desired (electricity
Pressure and electric current).In another exemplary arrangement, the subset of photovoltaic sub-component can be with parallel coupled, and such subset can
To be connected to power management integrated circuits.Such as, can include can the light of electrical connection in parallel for the first subset of photovoltaic sub-component
Volt sub-component 102,104,106 and 108.Similarly, can include can in parallel electrical connection for the second subset of photovoltaic sub-component
Photovoltaic sub-component 110,112,114 and 116.First subset of photovoltaic sub-component and the second subset of photovoltaic sub-component are the most permissible
Being connected to integrated circuit, integrated circuit performs power management so that quantity of power is expected in solar panels 100 output.Other layout is also
Consider, and be intended to be included into and invested in the range of this claim.
In solar panels 100, in photovoltaic sub-component 102 to 148, at least some of being arranged in parallel effectively is reduced when photovoltaic subgroup
When one or more photovoltaic cells in part are operated in reverse breakdown, any photovoltaic sub-component (or battery therein) is impaired
Probability.Because the electrically in parallel layout of at least some in photovoltaic sub-component 102 to 148, when in photovoltaic sub-component 102 to 148
When at least one is shielded, the currents match between assembly need not occur.This effectively reduces may be across any one
The quantity of power that photovoltaic sub-component dissipates, thus reduce when photovoltaic sub-component the most shielded in solar panels 100
Time damage the risk of this sub-component.Therefore, solar panels 100 do not have bypass diode.
Referring now to Fig. 2, the exemplary photovoltaic sub-component 200 can being included in solar panels 100 is illustrated.According to
Example, the length of the size of photovoltaic sub-component 200 can be between 10 centimetres and 30 centimetres, and width is at 10 centimetres and 30 lis
Between meter.Photovoltaic sub-component 200 includes the photovoltaic cell group 202 to 240 of multiple electrical connection, and wherein group 202 to 240 series connection is electrically connected
Connect.Although photovoltaic sub-component 200 is shown as including 20 groups, it is to be understood that, the quantity of the group in photovoltaic sub-component 200
The expectation voltage that photovoltaic sub-component 200 exports is can be depending on arranging.Although additionally, photovoltaic sub-component 200 is shown to too
Definable, the sub-element of physics of sun energy plate, it is to be appreciated that, photovoltaic sub-component can be used by solar panels
Define for connecting the circuit of battery；Two kinds of layouts are intended to be included into and are invested in the range of this claim.
According to example, photovoltaic sub-component 200 can comprise about 100 groups, and the most each group is configured to output unanimously
Voltage；Such as, about 2.4 volts.In such an example, the desired output of photovoltaic sub-component 200 is about 240 volts.
Additionally, as by shown in exemplified here, some groups can be connected in parallel.Such as, photovoltaic sub-component 200 can include
More than one group being connected in series and more than second groups being connected in series, wherein more than first group and more than second group are connected in parallel.
In example as above, each group in group 202 to 240 is configured to export about 2.4 volts.Even if photovoltaic
The subset of the group 202 to 240 in sub-component 200 is shielded, due to voltage output thus relatively low and by group 202 to 240
Electric current relatively low (in the magnitude of milliampere), even if the individual battery in group is operated in reverse breakdown, across group 202 to 240 dissipation
Underpower so that these group 202 to 240 (or batteries therein) suffer damage.Therefore, photovoltaic sub-component 200 need not bag
Any bypass diode containing any group be connected to organize in 202 to 240.
Referring now to Fig. 3, exemplary group 300 is illustrated, and it can be included as the group 202 in photovoltaic sub-component 200
To one of 240.Group 300 includes multiple photovoltaic cell 302 to 332.With according to example, photovoltaic cell 302 to 332 can be micro-system
The photovoltaic cell enabled, the photovoltaic cell that micro-system enables is the relative thin (1.0 to 50 microns using micro Process concept to build
Thick), the photovoltaic cell of little (horizontal 50 microns to 10 millimeters).In another example, photovoltaic cell can be not more than length 2 centimetres
It is multiplied by width 2 centimetres.Such as, be incorporated into this by reference describes use micro-processing technology structure below with reference to document
Comprise " Microscale C-SI (C) the PV Cells for Low-of the photovoltaic module of numerous photovoltaic cell: Nielson et al.
Cost Power”,34th IEEE Photovoltaic Specialist Conference,June 7-102009,
" the Microscale PV Cells for of Philadelphia, PA, 978-1-4244-2950/90, and Nielson et al.
Concentrated PV Applications,”24th European Photovoltaic Solar Energy
Conference,September 21-25,2009,Hamburg,Germany 3-936338-25-6.In a word, these are with reference to literary composition
Offer the condenser system describing a sun He there are integrated micro-optical lens, and further describe and used silicon (Si)
With the battery that the extension in GaAs (GaAs) peels off relative thin that make, that have the efficiency more than 10%.
Accordingly, photovoltaic cell 302 to 332 can be or include Si battery, GaAs battery and/or indium gallium phosphorus (indium phosphide
Gallium) (InGaP) battery.It will consequently be understood that, in photovoltaic cell 302 to 332, at least one can be iii-v photovoltaic cell.
Additionally or alternati, photovoltaic cell 302 to 332 can include at least one germanium (Ge) photovoltaic cell.Further, photovoltaic electric
Pond 302 to 332 can be, maybe can be included in multijunction cell, and multijunction cell includes having the different types of of different band gap
The layer of photovoltaic cell.For dielectric layer therebetween, heterogeneous integrated (such as, vertical stacking) different battery types can produce height
The multijunction cell of performance, the Lattice Matching that wherein designer of photovoltaic panel avoids monolithic battery and the constraint being connected in series.
In the exemplary embodiment, each battery of photovoltaic cell 302 to 332 can be multijunction cell, wherein, for often
Individual multijunction cell, layer is integrally connected.This creates the photovoltaic cell being electrically connected in series in relatively small amount of space effectively
String.In another exemplary embodiment, as by shown in this article, the battery in multijunction cell can not be connected integratedly
Connect.In another exemplary embodiment, photovoltaic cell 302 to 332 can be same type (silicon).Further contemplate photovoltaic cell
Other arrange.
In the exemplary embodiment, sub-component 300 can include first photovoltaic cell string the 334, second photovoltaic cell string
336, the 3rd photovoltaic cell string 338 and the 4th photovoltaic cell string 340.First photovoltaic cell string 334 includes the light being electrically connected in series
Volt battery 302 to 308.Similarly, the second photovoltaic cell string 336 includes the photovoltaic cell 310 to 316 being electrically connected in series.3rd
Photovoltaic cell string 338 includes the photovoltaic cell 318 to 324 being electrically connected in series, and the 4th photovoltaic cell string 340 includes series electrical
The photovoltaic cell 326 to 332 connected.First photovoltaic cell string the 334, second photovoltaic cell string the 336, the 3rd photovoltaic cell string 338
Electrical connection in parallel with the 4th photovoltaic cell string 340.
As will be by understood by one of ordinary skill in the art, different types of photovoltaic cell has different running voltages.Example
As, if photovoltaic cell 302 to 332 is Ge battery, running voltage can be about 0.3 volt.If photovoltaic cell 302 to
332 is Si battery, then running voltage can be about 0.6 volt.If photovoltaic cell 302 to 332 is GaAs battery, then
Running voltage can be about 0.9 volt, and if photovoltaic cell 302 to 332 be InGaP battery, then running voltage can
Being about 1.3 volts.According to example, photovoltaic cell 302 to 332 can be Si battery.In such an example, photovoltaic cell
Each photovoltaic cell string about 2.4 volts (common electric voltage) of output of string 334 to 340, and therefore group 300 is output as about
2.4 volt.In this case, string 334,336,338 and 340 has different number of battery for different battery types,
Thus close to common electric voltage.Such as, in the exemplary embodiment, the first photovoltaic cell string 334 can include 8 germanium batteries (8 ×
0.3=2.4), the second photovoltaic cell string 336 can include 4 silion cells (4 × 0.6=2.4), and the 3rd photovoltaic cell string 338 can
To include 3 GaAs batteries (3 × 0.9=2.7), and the 4th photovoltaic cell string 340 can include 2 InGaP batteries (2 ×
1.3=2.6).Slight voltage mismatch can be tolerated, and if desired, it is possible to use greater number of battery
With higher voltage, to provide more accurate voltage matches.In another embodiment previously described, management circuit can
For making independently to be risen to common electric voltage by the voltage being connected in series generation of different battery types.If solar panels 100
Desired output be about 240 volts, then photovoltaic sub-component 200 can include 100 groups being electrically connected in series 300.Therefore, too
Sun can export about 240 volts by each sub-component 102 to 148 in plate 100, and the output of solar panels 100 thus be big
About 240 volts.
By using this example, solar panels 100 include 38,400 batteries.When solar panels 100 overall illuminated time,
Photovoltaic cell 302 to 332 in each group generates the electrical power of 4 milliwatts.The photovoltaic cell that micro-system is enabled, even if this
Battery operated at reverse breakdown, the electrical power across single battery does not has destructiveness in the magnitude of 100 milliwatts yet.Due to the most herein
The selectivity of the series/parallel/series/parallel of photovoltaic cell, sub-component and assembly in the solar panels described is arranged, very
It is unlikely that across the electrical power more than 100 milliwatts of single battery.Given such exemplary arrangement, and micro-by utilizing
The photovoltaic cell that system enables, it should be readily apparent that the solar panels being made up of above-mentioned photovoltaic cell can not contain any side
Road diode, even if this is owing to when a part for solar panels is shielded from, independent battery is also impossible to damaged.
Referring now to Fig. 4, the example of one of photovoltaic sub-component 102 to 148 can being included as in solar panels 100
Property photovoltaic sub-component 400 is illustrated.According to example, photovoltaic sub-component 400 can include multiple multi-junction photovoltaic battery so that each
Multi-junction photovoltaic battery includes multiple photovoltaic cell.As discussed above, each multi-junction photovoltaic battery can include Si photovoltaic cell and
Iii-v photovoltaic cell.In more specifically example, each multi-junction photovoltaic battery can comprise Ge photovoltaic cell, Si photovoltaic cell,
GaAs photovoltaic cell and InGaP photovoltaic cell.
Exemplary photovoltaic sub-component 400 includes 72 multi-junction photovoltaic batteries, and the most each multi-junction photovoltaic battery includes Ge electricity
Pond, Si battery, GaAs battery and InGaP battery.These different batteries are shown as layout adjacent one another are；But, such
Layout is for purposes of explanation.As noted above, the battery in multijunction cell is stacked on top of each other.At another
In individual exemplary embodiment, battery can place (such as, if using spectrum expansion optical) to be arranged side-by-side.
Photovoltaic module 400 includes the different number of each battery types (to create string) being connected in series, to reach similar
Centre (higher) voltage.These strings can be connected in parallel to be effectively increased electric current.In this example, photovoltaic module 400 export
Expectation medium voltage can be about 10 volts.As discussed above, Ge battery can have the work electricity of about 0.3 volt
Pressure, Si battery may have about the running voltage of 0.6 volt, and GaAs battery can have the running voltage of about 0.9 volt, and
And InGaP battery can have the running voltage of about 1.3V.Therefore, photovoltaic sub-component 400 can include Ge battery strings 402 He
2nd Ge battery strings 404, often goes here and there and all includes 36 batteries being electrically connected in series.Therefore, Ge battery strings 402 and a 2nd Ge electricity
Pond string 404 each exports about 10.8V.
Exemplary photovoltaic sub-component 400 farther includes Si battery strings the 406, the 2nd Si battery strings the 408, a 3rd Si electricity
Pond string 410 and the 4th Si battery strings 412.Each string in Si battery strings 406 to 412 can include that 18 are electrically connected in series
Battery, thus cause often going here and there output about 10.8 volts.
Additionally sub-component 400 can include GaAs battery strings the 414, the 2nd GaAs battery strings the 416, a 3rd GaAs battery
String the 418, the 4th GaAs battery strings the 420, the 5th GaAs battery strings 422 and the 6th GaAs battery strings 424.GaAs battery strings 414 to
Each string of 424 can include 12 batteries being electrically connected in series, thus causes each GaAs battery strings output about 10.8
Volt.
Further, sub-component 400 can also include an InGaP battery strings 426, the 2nd InGaP battery strings 428,
Three InGaP battery strings 430, the 4th InGaP battery strings 432, the 5th InGaP battery strings 434, the 6th InGaP battery strings 436,
Seven InGaP battery strings the 438, the 8th InGaP battery strings 440 and the 9th InGaP battery strings 442.InGaP battery strings 426 to
Each string of 442 can include 8 batteries being electrically connected in series, thus causes each InGaP battery strings output about 10.4
Volt.
In accordance with the above, it may be determined that the middle running voltage of each battery strings can be about 10 volts.Can enter
One step determines, the voltage of the string output of different battery types be incomplete same, and therefore exported by sub-component 400
Voltage will be the minimum voltage of battery strings output.
Owing to the most a type of battery is initially connected in series, the power phase of other batteries output from sub-component 400
Not affected by spectral shift, this spectral shift causes a type of battery output fall relative to another kind of battery
Low.Such as, from 10% reduction of the electric current of a kind of battery types, the reduction that array current is from 1% to 4.3% can be produced, this
Depend on which kind of battery and reduce solar energy input.Therefore, when compared with conventional photovoltaic module, sub-component 400 is not more allowed
Being vulnerable to the impact of spectral shift and output reduces, spectral shift affects the response of battery types in the mode such as not.
Referring again to Fig. 1, solar panels 100 (although being shown without) can associate with inverter, and inverter is by solar energy
The voltage of plate 100 output is transformed to the desired phase place of consumer of electrical power produced by these solar panels 100 from DC
AC.Further, although be shown without, solar panels 100 can include being configured to gather therein by the light from the sun
Micro-light-gathering optics part (optics) on photovoltaic cell.In another exemplary embodiment, it is not by between battery types
Precise voltage coupling, microelectronics part (microelectronics) can be used to make medium voltage be in desired level
(by the voltage of each output in assembly 102 to 148).Therefore, photovoltaic sub-component or group can include one or more DC
To DC transducer (there is micropower and follow the tracks of electronics part), so that intermediate voltage output is roughly equal and the most adjustable.Additionally,
Photovoltaic group can include micro-inverter, and the D/C voltage that battery or battery arrangement export is transformed into AC voltage by it.Due to solar energy
Individual battery size in plate 100 is relatively small, has enough spaces between battery, sub-component or group, for add for
Boost conversion and the various microelectronic devices of power tracking.
Referring now to Fig. 5, the sectional view of exemplary hetero (non-monolithic) integrated multi-junction photovoltaic battery 500 is illustrated.Many knots
Photovoltaic cell 500 includes multiple photovoltaic cell: first InGaP battery 508 receives the light from the sun；GaAs battery 506 is close to
InGaP battery 508；Si battery 504 is close to GaAs battery 506；And Ge battery 502 is close to Si battery 504.It being understood that
Other is arranged by it is considered as desirable by the inventor to, and is intended to be included into and is invested in the range of this claim
It is possible that the exemplary embodiment that wherein solar panels 100 are favorably used includes that at least a part of which part is covered
Any installation.Such as, the roof of neighbouring timbered building；There is the region of interval cloud cover, near air traffic
Region etc..It addition, feature described herein is useful in following installation: wherein solar panels 100, its part or whole
Installation is flexible, bending, (conformed) of conformal or other is nonplanar, by this way so that solar energy
Being always subjected at least partially of plate 100 is covered.In such installation, solar panels can not include at solar panels 100
Output expectation voltage in the case of bypass diode.
Referring now to Fig. 6 to Fig. 7, various illustrative methods are shown and described.Although method be described as a series of by
The action that sequence performs, it is to be appreciated that, method is not limited by the order of sequence.Such as, some actions can be by
Occur from different order described herein.It addition, action can occur with another action simultaneously.Additionally, in some instances, can
It is required for realizing method described herein with not every action.
Referring now to Fig. 6, illustrative methods 600 is illustrated, its solar panels being easy to create none-disk terminal diode.Method
600 start from 602, and at 604, the photovoltaic cell that multiple micro-systems enable is received.In the exemplary embodiment, micro-system
The photovoltaic cell that system enables can have on the back side just contact and negative contact both.
At 606, the photovoltaic cell that multiple micro-systems enable can electrically connect to create photovoltaic sub-component, wherein photovoltaic subgroup
Part does not contains bypass diode.As discussed above, the relative small amount of electric current that the photovoltaic cell enabled by micro-system is advanced
Guarantee when such battery be shielded from, when being operated in reverse breakdown, any individual photovoltaic cell is not damaged by.
At 608, multiple photovoltaic sub-components electrically connect to create solar panels.Because photovoltaic sub-component is enabled by micro-system
Photovoltaic cell composition, solar panels can not contain bypass diode.But, in the exemplary embodiment, solar panels are permissible
Including power management integrated circuits, the photovoltaic sub-component that power management integrated circuits is electrically connected in solar panels so that power
Management integrated circuit can be based at least partially on and be carried out electromotive power output by the voltage of corresponding photovoltaic sub-component output.At another
In individual embodiment, power management integrated circuits can be placed with and be connected with organizing so that photovoltaic cell string is electrically connected to power
Manage integrated circuit, and the output of sub-component is the voltage exported based on the respective sets being connected to integrated circuit.Method 600 is complete
Become 610.
Referring now to Fig. 7, the another exemplary method 700 of the solar panels for creating none-disk terminal diode is illustrated.
Method 700 starts from 702, and multiple photovoltaic sub-components are received at 704.
At 706, photovoltaic sub-component electrically connects, and to generate solar panels, the subset of at least a part of which photovoltaic sub-component is in parallel
Electrical connection, and wherein solar panels do not contain bypass diode.Method 700 is completed in 708.
Note, have been provided that some examples for explanation purposes.These examples are not construed as limiting the power being invested this
Profit requirement.Further, it will be appreciated that, example provided herein can be altered, but still is included into the model of claim
In enclosing.
Claims (12)
1. include a device at least one photovoltaic sub-component (300), wherein:
At least one photovoltaic sub-component described does not contains any bypass diode；
The first string (334) that at least one photovoltaic sub-component described includes being connected in series, the second string (336), the 3rd string (338) and
The photovoltaic cell that 4th string (340) micro-system enables, the size of each described battery is not more than height 2 centimetres and width 2 centimetres；
Described first string and described second string are connected in parallel with each other, as first group of (any in 202-240 being connected in parallel
Individual) part；
Described 3rd string and described 4th string are connected in parallel with each other, as second group of (any in 202-240 being connected in parallel
Individual) part；And
Described first group and described second group of coupled in series electrical.
2. device as claimed in claim 1, output is between 200 volts and 2000 volts.
3. device as claimed in claim 1, wherein:
At least one photovoltaic sub-component (300) described farther includes power management integrated circuits, the integrated electricity of described power management
Road is electrically connected to photovoltaic cell and the light of described second string (336) micro-system enable that described first string (334) micro-system enables
Volt battery；And
Described power management integrated circuits is at least partially based on the photovoltaic cell and described the enabled by described first string micro-system
The voltage of the photovoltaic cell output that two string micro-systems enable exports the electrical power of predefined amount, and based on external operating conditions
Or system operational order is the most adjustable.
4. device as claimed in claim 1, the length and width of at least one photovoltaic sub-component (300) wherein said is 10 lis
Rice is to 30 centimetres.
5. device as claimed in claim 1, wherein at least one photovoltaic electric in the photovoltaic cell that multiple micro-systems enable
Pond (any one in 302-332) has both electrical contacts of positive and negative on the back side of at least one photovoltaic cell described.
6. device as claimed in claim 1, the photovoltaic cell (any one in 302-332) that plurality of micro-system enables
Including at least one in InGaP battery or InGaAs battery.
7. device as claimed in claim 1, the photovoltaic cell (any one in 302-332) that plurality of micro-system enables
Including GaAs battery.
8. device as claimed in claim 1, the photovoltaic cell (any one in 302-332) that plurality of micro-system enables
Including at least one in Ge battery and Si battery.
9. device as claimed in claim 1, the photovoltaic cell (302-332) that wherein said micro-system enables is multijunction cell
(500)。
10. device as claimed in claim 1, wherein said device is solar panels.
11. devices as claimed in claim 10, wherein said solar panels are nonplanar.
12. devices as claimed in claim 10, wherein:
Described solar panels have output voltage, and described output voltage is by being connected in series the independent cell voltage being added together
Sum；And
Described independent cell voltage sum provides the total output voltage in the range of 200 volts to 600 volts.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/543,297 US9093586B2 (en) | 2007-11-01 | 2012-07-06 | Photovoltaic power generation system free of bypass diodes |
| US13/543,297 | 2012-07-06 | ||
| PCT/US2013/049165 WO2014008313A2 (en) | 2012-07-06 | 2013-07-02 | Photovoltaic power generation system free of bypass diodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104508834A CN104508834A (en) | 2015-04-08 |
| CN104508834B true CN104508834B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380035972.8A Active CN104508834B (en) | 2012-07-06 | 2013-07-02 | The photovoltaic generating system of none-disk terminal diode |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2870636A4 (en) |
| JP (2) | JP6010694B2 (en) |
| KR (1) | KR101638753B1 (en) |
| CN (1) | CN104508834B (en) |
| WO (1) | WO2014008313A2 (en) |
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|---|---|---|---|---|
| KR102000062B1 (en) | 2016-03-15 | 2019-10-01 | 엘지전자 주식회사 | Photovoltaic module |
| WO2018142398A1 (en) | 2017-01-31 | 2018-08-09 | Solarwat Ltd. | Solar modules having solar sub cells with matrix connections between the solar sub cells |
| CN108281499B (en) * | 2018-03-09 | 2023-10-13 | 天合光能股份有限公司 | Novel photovoltaic cell assembly with circuit design |
| WO2021014449A1 (en) * | 2019-07-24 | 2021-01-28 | Solarwat Ltd. | High voltage photovoltaic systems using mini/micro solar cells |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4154004B2 (en) * | 1997-01-06 | 2008-09-24 | キヤノン株式会社 | Manufacturing method of solar cell module |
| JP2002373997A (en) * | 2001-04-10 | 2002-12-26 | Kanegafuchi Chem Ind Co Ltd | Integrated hybrid thin-film photoelectric conversion module |
| JP2004296658A (en) * | 2003-03-26 | 2004-10-21 | Sharp Corp | Multijunction solar cell and its current matching method |
| US20070227579A1 (en) * | 2006-03-30 | 2007-10-04 | Benyamin Buller | Assemblies of cylindrical solar units with internal spacing |
| US20090217965A1 (en) * | 2006-04-21 | 2009-09-03 | Dougal Roger A | Apparatus and method for enhanced solar power generation and maximum power point tracking |
| US20080099063A1 (en) * | 2006-10-23 | 2008-05-01 | Ascent Solar Technologies, Inc. | Flexible High-Voltage Adaptable Current Photovoltaic Modules And Associated Methods |
| ES2327864T3 (en) * | 2006-12-05 | 2009-11-04 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | PHOTOVOLTAIC MODULE AND ITS USE. |
| AU2007346896A1 (en) * | 2007-02-15 | 2008-08-21 | Transform Solar Pty Ltd | A substrate assembly, an assembly process, and an assembly apparatus |
| US8835748B2 (en) * | 2009-01-06 | 2014-09-16 | Sunlight Photonics Inc. | Multi-junction PV module |
| JP4726962B2 (en) * | 2009-01-09 | 2011-07-20 | シャープ株式会社 | Thin film solar cell module and thin film solar cell array |
| WO2010081746A2 (en) * | 2009-01-19 | 2010-07-22 | Hubert Berger | Power control of serially connected cells |
| KR101055616B1 (en) * | 2009-03-30 | 2011-08-09 | 김혁 | Solar panel with bypass unit |
| US8263920B2 (en) * | 2009-09-30 | 2012-09-11 | The Boeing Company | Diodeless terrestrial photovoltaic solar power array |
| CN203026514U (en) * | 2010-01-23 | 2013-06-26 | 索拉瓦特有限公司 | Solar power generation system |
| US8859891B2 (en) * | 2010-02-26 | 2014-10-14 | Tyco Electronics Corporation | Socket assembly for a photovoltaic package |
-
2013
- 2013-07-02 JP JP2015520666A patent/JP6010694B2/en active Active
- 2013-07-02 WO PCT/US2013/049165 patent/WO2014008313A2/en active Application Filing
- 2013-07-02 CN CN201380035972.8A patent/CN104508834B/en active Active
- 2013-07-02 EP EP13812821.0A patent/EP2870636A4/en not_active Withdrawn
- 2013-07-02 KR KR1020157002917A patent/KR101638753B1/en active IP Right Grant
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|---|---|
| WO2014008313A2 (en) | 2014-01-09 |
| EP2870636A2 (en) | 2015-05-13 |
| EP2870636A4 (en) | 2016-03-16 |
| JP2015522215A (en) | 2015-08-03 |
| KR101638753B1 (en) | 2016-07-11 |
| WO2014008313A3 (en) | 2014-04-03 |
| JP6010694B2 (en) | 2016-10-19 |
| CN104508834A (en) | 2015-04-08 |
| KR20150036356A (en) | 2015-04-07 |
| JP2016149582A (en) | 2016-08-18 |
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