CN104425646A - Solar-battery-module shielding-compensating device - Google Patents
Solar-battery-module shielding-compensating device Download PDFInfo
- Publication number
- CN104425646A CN104425646A CN201310390504.4A CN201310390504A CN104425646A CN 104425646 A CN104425646 A CN 104425646A CN 201310390504 A CN201310390504 A CN 201310390504A CN 104425646 A CN104425646 A CN 104425646A
- Authority
- CN
- China
- Prior art keywords
- solar
- solar module
- covered
- battery array
- compensation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002955 isolation Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006681 Combes synthesis reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009467 reduction Effects 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a solar-battery-module shielding-compensating device, which comprises an input port, an isolated DC (Direct Current)-DC electric-energy converter and an output port. The input port of the solar-battery-module shielding-compensating device is connected to both ends of a solar-battery array which comprises a plurality of series solar-battery modules, and the output port of the solar-battery-module shielding-compensating device is connected to one solar-battery module of the solar-battery array; when the solar-battery module connected with the output port is shielded or partially shielded, compensating current is output by the isolated DC-DC electric-energy converter and injected into the solar-battery module connected with the output port, so as to increase the voltage of the shielded or partially-shielded solar-battery module and increase the output voltage and the power of the solar-battery array. Through the solar-battery-module shielding-compensating device, the effects of simplifying a circuit and lowering the manufacturing cost can be achieved, the loss can be effectively reduced, and the electric-energy converting efficiency of a solar power-generating system can be effectively enhanced.
Description
Technical field
The present invention is a kind of solar module occlusion compensation device, refer to that a kind of solar module occlusion compensation device can carry out current compensation, to promote output voltage and the power of overall solar battery array to the solar module covered in a solar battery array or part is covered especially.
Background technology
General residential area is when using solar battery array (solar cell array); usually solar battery array can be installed in the floor space of Roof of the house or uppermost storey; such as, but the vicinity in installing place often has other protrusion to build thing, water tower, staircase, ventilating opening, parapet, escalator etc.Solar battery array is normally composed in series by multiple solar module (solar cell modular), except time sunlight at noon can except vertical irradiation ground, in the morning or have afternoon very long-term between in have specific one or more solar module can be covered because surrounding protrudes the shade impact of building thing, cannot by the complete direct irradiation of sunlight, installation position due to each solar module is all known, therefore, the solar module that can be covered or partly cover generally can be learnt in advance, the particular solar module formed in so-called solar battery array is covered or part covers situation.
Under solar module is covered or part covers situation, illumination received by this solar module obviously reduces many, the output current of this solar module is caused obviously to reduce, now, during make one of solar battery array overall output current be greater than if the control output short circuit current of solar module that this crested or part cover, the solar module that crested or part are covered cannot generate electricity, be converted into a load on the contrary, this crested or the solar module that covers of part is made to have overheated and possibility that is that damage.
Be damaged for avoiding the solar module that crested or part are covered, each solar module all can one or more backward diode in parallel when encapsulating, when solar module crested or part are covered, because of diode forward conducting, the solar module voltage of this crested can by pincers to leveling off to 0V voltage, therefore the solar module that this crested or part are covered cannot provide any power, thus output voltage and the power of whole solar battery array is reduced, and the relation curve of the Maximum Power Output of solar battery array and corresponding output voltage (P-V curve) will there will be multiple peak dot, therefore the degree of difficulty that its maximum power tracing of overall solar battery array controls is improved.
Please refer to shown in Fig. 1, is a kind of equalizer circuit being used in solar battery array, for solving solar module because to be covered or part is covered and caused the problem of voltage inequality.This equalizer circuit is connected to each solar module, this equalizer circuit can effectively make the voltage of each solar module impartial, therefore when particular solar module is covered or part is covered, its voltage of solar module that crested or part are covered still can remain unchanged, make the solar module that this crested or part are covered still can export electric energy, effectively can promote the power output of solar battery array.
If when whole solar battery array includes n solar module, this equalizer circuit must contain an inductor, a n capacitor, (n+1) × 2 diode and n × 2 electronic power switch.Illustrate using the equalizer circuit shown in Fig. 1 as example, this solar battery array includes four pieces of solar module PV1-PV4, then this equalizer circuit includes an inductor L, four capacitor C1-C4, ten diode D1-D10 and eight electronic power switch S1-S8.When the solar module number of this solar battery array increases, the elements such as the capacitor needed for this equalizer circuit, electronic power switch, diode increase thereupon, cause integral member various, therefore have the shortcoming increasing wiring difficulty in cost and practical application, and another shortcoming is when the crested of part solar module or part are covered, have several electronic power switch S1-S8 in this equalizer circuit and must do high frequency switching, cause efficiency to reduce and control complicated.
Please refer to shown in Fig. 2 A, for another kind solves the existing practice of covering or partly covering problem, at this for a string four pieces of solar module PV1-PV4, the exit point of every block solar module PV1-PV4 all connects one minisize dc-direct current energy conversion equipment 41, again the exit point of four minisize dcs-direct current energy conversion equipment 41 is connected in series, an electric energy transducer 42 is inputted again after series connection, utilize this minisize dc-direct current energy conversion equipment 41 can control the output voltage of each solar module PV1-PV4, make crested or the solar module PV1-PV4 that covers of part still can output electric energy, effectively to promote the gross output of solar battery array.
As shown in Figure 2 B, each minisize dc-direct current energy conversion equipment 41 needs to use two capacitor C1-C2, five electronic power switch S1-S5, inductor L and diode D1 etc. the circuit framework of above-mentioned each minisize dc-direct current energy conversion equipment 41.If when solar battery array has a n solar module, this framework needs n minisize dc-direct current energy conversion equipment 41, therefore there is element various, therefore have the higher shortcoming with wiring difficulty in practical application of cost, no matter and whether solar module is subjected to cover or partly cover all need to carry out electric energy conversion through this minisize dc-direct current energy conversion equipment 41, causes efficiency to reduce and controls complicated.
Summary of the invention
For at least one of solving the problem, the invention provides a kind of solar module occlusion compensation device, its main purpose wishes the mode with relatively simple circuit framework, control mode and low setup cost, the solar module covered for meeting crested specific in a solar battery array or part affords redress, effectively to improve output voltage and the electric energy of solar battery array.
The technical scheme adopted solved the problems of the technologies described above is to provide a kind of solar module occlusion compensation device, by an input port, and the DC-to-DC electric energy transducer of a tool isolation and output port composition.The input port of this solar module occlusion compensation device is connected to the two ends that has the solar battery array of the solar module of multiple series connection, its output port is connected to a solar module of this solar battery array, when the solar module that this solar module occlusion compensation device connects is covered or part is covered, this solar module occlusion compensation device can extract part electric energy from whole solar battery array, after conversion by power compensation to crested or this solar module of covering of part, to promote the voltage of this solar module, and make to be covered or the sustainable output electric energy of solar module that part is covered, and then be lifted at cover or part cover situation under the output voltage of overall solar battery array and power.
Wherein, described offset current is the maximum power point output current of the solar module covered in described solar battery array and the difference of described its output current of solar module covered or partly cover.
Wherein, the DC-to-DC electric energy transducer of described tool isolation is a flyback DC-to-DC electric energy transducer.
Wherein, the DC-to-DC electric energy transducer of described tool isolation is a forward type DC-to-DC electric energy transducer.
Wherein, when the described solar module that described output port connects is not covered or part is covered, the DC-to-DC electric energy transducer of described tool isolation is failure to actuate.
Generally speaking, the present invention at least possesses following advantage and effect:
1. the solar module occlusion compensation device in the present invention only needs to be connected to the solar module that can be covered or partly cover impact, but not each solar module in whole solar battery array, overall solar power system output voltage and electric energy can be improved, therefore solar module occlusion compensation device of the present invention uses element less, cost is lower, wiring is comparatively simple, can reach and simplify circuit and the effect reducing manufacturing cost.
2. existing solar battery array cover or part cover the power that settling mode must process whole solar battery array, and solar module occlusion compensation device of the present invention only needs to be connected to the solar module that can be covered or partly cover impact, when part solar module is subjected to cover or partly cover, the power of the required process of this solar module occlusion compensation device is only the power of the solar module reduction of being covered or partly covering impact, therefore the loss of solar module occlusion compensation device of the present invention can effectively reduce.
3. solar module occlusion compensation device of the present invention only just operates when solar module crested or part are covered, and it is not operating when the non-crested of solar module, therefore do not affect the operation of solar battery array originally, effectively can promote the energy conversion efficiency of solar power system.
Accompanying drawing explanation
Fig. 1 is the circuit diagram being applied to solar battery array with existing equalizer circuit;
Fig. 2 A is in the circuit block diagram of solar battery array with existing minisize dc-direct current energy converter application;
Fig. 2 B is the detailed circuit diagram of the minisize dc-direct current energy transducer in the middle of Fig. 2 A;
Fig. 3 is system block diagrams of the present invention;
Fig. 4 is the circuit diagram of solar module occlusion compensation device one of the present invention preferred embodiment;
Fig. 5 is the circuit diagram of another preferred embodiment of solar module occlusion compensation device of the present invention.
Embodiment
Below coordinating preferred embodiment graphic and of the present invention, setting forth the technological means that the present invention takes for reaching predetermined goal of the invention further.
Please refer to shown in Fig. 3, for solar module occlusion compensation device 2 of the present invention is applied to the circuit block diagram of the preferred embodiment of a solar power system, this solar power system comprises: solar battery array 1 and an electric energy transducer 3, and this solar module occlusion compensation device 2 comprises DC-to-DC electric energy transducer 21 and an output port 22 of input port 20, tool isolation.
This solar battery array 1 is made up of the solar module of multiple series connection, illustrate for four solar module 11-14 in this preferred embodiment, and solar module 11-14 is the solar module of same model, therefore each solar module output voltage and power output are rough identical under equivalent environment and illumination, and the output voltage of each solar module 11-14 adds the output voltage Vtotal that the General Logistics Department becomes this solar battery array 1.
This input port 20 of this solar module occlusion compensation device 2 is connected to the two ends of this solar battery array 1, the solar module that can be covered or partly cover can be any one in solar module 11-14, suppose that in this solar battery array 1, only this solar module 14 may be covered or partly cover for convenience of description, but it is not intended to limiting the invention, therefore this output port 22 of this solar module occlusion compensation device 2 is connected to this solar module 14 two ends.This electric energy transducer 3 can be one direct current-direct current energy transducer, and it is in order to control the output voltage Vtotal of this solar battery array 1, to realize the maximum power tracing to this solar battery array 1.
Refer again to Fig. 3 solar module occlusion compensation of the present invention application of installation in the preferred embodiment of solar power system, when solar battery array 1 non-crested, this solar module occlusion compensation device 2 can't operate, therefore this solar module cover mend compensation arrangement 2 can not produce extraneoas loss.When this solar module 14 is subjected to cover or partly cover, this solar module occlusion compensation device 2 comes into operation, when solar module 14 is under situation is covered in crested or part, and the maximum power voltage V of this solar module 14
mPPcan produce and slightly change, but its maximum power electric current I
mPPcan obviously reduce many, this maximum power electric current I
mPPthe degree reduced is determined by the degree of being covered.
It is 1/n that this solar module occlusion compensation device 2 has voltage gain, wherein n is the quantity of the series-connected solar cells module 11-14 that this solar battery array 1 comprises, four solar module 11-14 are comprised in the preferred embodiment of Fig. 3, therefore n equals 4, to make to be hidden or the voltage of solar module 14 that part is covered can level off to solar module 11,12,13 terminal voltage of non-crested with other.After adding this solar module occlusion compensation device 2, this solar module occlusion compensation device 2 will provide an offset current I
cOMgive and being covered or the solar module 14 that covers of part, make this be subjected to cover or voltage of solar module 14 that part is covered still can operate in voltage V close to its maximum power
mPP, make this solar module 14 being subjected to cover or part is covered still can maintain output current and continue generating.
Avoid following problem by this: when solar module 14 crested or part are covered, maximum power point output current due to the solar module covered in this solar battery array 1 is greater than the output short circuit current that this is subjected to the solar module 14 covering or partly cover, and make this solar module 14 itself inner and the diode current flow connect, this output voltage being subjected to the solar module 14 covering or partly cover is caused to level off to 0 volt, make the solar module 14 that this crested or part are covered cannot provide any power, thus output voltage and the power of whole solar battery array 1 is reduced, and cause the relation of Maximum Power Output to output voltage to occur multiple peak dot, increase the degree of difficulty that this electric energy transducer 3 maximum power tracing controls, in the present invention, the exit point from whole solar battery array 1 is extracted part electric energy by this solar module occlusion compensation device 2, and then provides an offset current I
cOM, this offset current is in this solar battery array 1 output current of the maximum power point of the solar module covered or partly cover and the difference of this solar module 14 output current covered or partly cover.
This solar module occlusion compensation device 2 is only subjected to cover or partly cover Shi Caihui running, the compensation power P that this solar module occlusion compensation device 2 provides at the 4th solar module 14
cOMthe total voltage Vtotal being about the solar battery array 1 of 1/4 times is multiplied by this offset current I
cOM, i.e. P
cOM=Vtotal/4 × I
cOM, this compensation power P
cOMdetermined by solar module 14 crested degree, but compensation power P
cOMbe less than or equal to 1/4 of this solar battery array 1 power output, therefore the capacity of this solar module occlusion compensation device 2 is very little, existing solar battery array cover or part cover the power that settling mode then must process whole solar battery array 1, therefore the power loss of solar module occlusion compensation device 2 of the present invention can effectively reduce.And when solar battery array 1 non-crested, this solar module occlusion compensation device 2 can't operate, therefore the generating efficiency of solar power system can not be reduced when solar battery array 1 non-crested, therefore the present invention is better than the existing practice shown in Fig. 2 A and Fig. 2 B; Solar module occlusion compensation device 2 of the present invention is only connected to the solar module 14 covering or partly cover puzzlement, and disconnected all solar module 11-14, therefore compared to existing mode, the present invention can reach and effectively simplify circuit, reduce manufacturing cost, reduce and control complexity, wiring is comparatively simple, the many merits such as elevator system reliability.
When multiple solar module in this solar battery array 1 may be covered or partly cover, multiple solar module occlusion compensation device 2 can be used, each solar module that may be covered can connect a solar module occlusion compensation device 2, the input port 21 of each solar module occlusion compensation device 2 is connected to the two ends of this solar battery array 1, the output port 22 of each solar module occlusion compensation device 2 is then distinctly connected to the solar module two ends that each may be covered or part is covered.
The DC-to-DC electric energy transducer 21 of this tool isolation of this solar module occlusion compensation device 2 shown in Fig. 4 can be made up of a flyback DC-to-DC electric energy transducer 21A; Please refer to Fig. 4, the DC-to-DC electric energy transducer 21A of this tool isolation comprises input capacitor 2111, transformer 2112, electronic power switch 2113, diode 2114 and an output capacitor 2115, this input capacitor 2111 of the DC-to-DC electric energy transducer 21 of this tool isolation is connected to this input port 20, and this output capacitor 2115 of the DC-to-DC electric energy transducer 21 of this tool isolation is connected to this output port 22.
The DC-to-DC electric energy transducer 21 of this tool isolation of this solar module occlusion compensation device 2 shown in Fig. 5 can be made up of a forward type DC-to-DC electric energy transducer 21B, the DC-to-DC electric energy transducer 21 of this tool isolation includes an input capacitor 2121, one transformer 2122, one electronic power switch 2123, one diode 2124, one diode 2125, one inductor 2126 and an output capacitor 2127, this input capacitor 2121 of the DC-to-DC electric energy transducer 21 of this tool isolation is connected to this input port 20, this output capacitor 2127 of the DC-to-DC electric energy transducer 21 of this tool isolation is connected to this output port 22.
The above is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a solar module occlusion compensation device, is applied to the solar battery array that includes multiple series-connected solar cells module, it is characterized in that, described solar module occlusion compensation device comprises:
One input port, for the two ends being connected to described solar battery array;
One output port, for the solar module being connected to described solar battery array;
The DC-to-DC electric energy transducer of a tool isolation, when the described solar module that described output port connects is covered or part is covered, the DC-to-DC electric energy transducer of described tool isolation export an offset current give described output port connect described in covered or solar module that part is covered.
2. solar module occlusion compensation device as claimed in claim 1, it is characterized in that, described offset current is the maximum power point output current of the solar module covered in described solar battery array and the difference of the described solar module output current covered or partly cover.
3. solar module occlusion compensation device as claimed in claim 1 or 2, is characterized in that, the DC-to-DC electric energy transducer of described tool isolation is a flyback DC-to-DC electric energy transducer.
4. solar module occlusion compensation device as claimed in claim 1 or 2, is characterized in that, the DC-to-DC electric energy transducer of described tool isolation is a forward type DC-to-DC electric energy transducer.
5. solar module occlusion compensation device as claimed in claim 1, is characterized in that, when the described solar module that described output port connects is not covered or part is covered, the DC-to-DC electric energy transducer of described tool isolation is failure to actuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390504.4A CN104425646B (en) | 2013-08-29 | 2013-08-29 | Solar module occlusion compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390504.4A CN104425646B (en) | 2013-08-29 | 2013-08-29 | Solar module occlusion compensation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104425646A true CN104425646A (en) | 2015-03-18 |
| CN104425646B CN104425646B (en) | 2017-03-01 |
Family
ID=52974110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310390504.4A Active CN104425646B (en) | 2013-08-29 | 2013-08-29 | Solar module occlusion compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104425646B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702206A (en) * | 2015-04-03 | 2015-06-10 | 浙江昱能科技有限公司 | Photovoltaic power generation system using bypass type direct current converters |
| CN105680794A (en) * | 2016-04-12 | 2016-06-15 | 常熟市福莱德连接器科技有限公司 | Enhanced photovoltaic combiner box in voltage compensation method |
| CN110350864A (en) * | 2019-06-27 | 2019-10-18 | 西交利物浦大学 | A kind of biswitch electric voltage equalization topology in the case of the masking for photovoltaic group string part |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008004675B3 (en) * | 2007-10-12 | 2009-03-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controllable switching device for solar module, has control provided to control controllable switching unit to switch switching unit in one of switch conditions using output of solar module or input at output terminal |
| KR20120018369A (en) * | 2009-05-25 | 2012-03-02 | 데이4 에너지 인코포레이티드 | Photovoltaic module string arrangement and shading protection therefor |
| EP2395550B1 (en) * | 2010-06-09 | 2013-10-09 | SMA Solar Technology AG | Method for recognising and evaluating shadowing |
| EP2434552B1 (en) * | 2010-09-24 | 2014-11-05 | Alta Devices, Inc. | Mixed wiring schemes for shading robustness |
| CN102244139B (en) * | 2011-06-17 | 2013-10-30 | 常州天合光能有限公司 | Method for eliminating damage of hot marks by controlling operating point with set voltage range of photovoltaic module |
| CN102916614A (en) * | 2011-08-03 | 2013-02-06 | 台达电子企业管理（上海）有限公司 | Photovoltaic system and photovoltaic module with voltage balancers |
| CN202268823U (en) * | 2011-09-14 | 2012-06-06 | 厦门蓝溪科技有限公司 | Solar photovoltaic power generation system capable of improving generating efficiency |
| CN202261101U (en) * | 2011-09-30 | 2012-05-30 | 上海大全赛奥法电气科技有限公司 | Power optimizer and intelligent photovoltaic assembly |
| CN102355165B (en) * | 2011-09-30 | 2013-11-06 | 浙江大学 | Photovoltaic power generation device with global maximum power output function |
| CN102594211B (en) * | 2012-01-19 | 2014-08-13 | 北京工商大学 | Optimizing method and tracking device for output power of partially shielded photovoltaic power generation system |
| CN103066888B (en) * | 2013-01-23 | 2015-01-07 | 浙江大学 | Photovoltaic module with self compensating function |
-
2013
- 2013-08-29 CN CN201310390504.4A patent/CN104425646B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702206A (en) * | 2015-04-03 | 2015-06-10 | 浙江昱能科技有限公司 | Photovoltaic power generation system using bypass type direct current converters |
| CN105680794A (en) * | 2016-04-12 | 2016-06-15 | 常熟市福莱德连接器科技有限公司 | Enhanced photovoltaic combiner box in voltage compensation method |
| CN105680794B (en) * | 2016-04-12 | 2017-10-24 | 常熟市福莱德连接器科技有限公司 | Voltage compensation method Synergistic type photovoltaic combiner box and its method of work |
| CN110350864A (en) * | 2019-06-27 | 2019-10-18 | 西交利物浦大学 | A kind of biswitch electric voltage equalization topology in the case of the masking for photovoltaic group string part |
| CN110350864B (en) * | 2019-06-27 | 2022-03-29 | 西交利物浦大学 | Double-switch voltage balancing topology used under condition of partial shielding of photovoltaic string |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104425646B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10714637B2 (en) | DC power conversion circuit | |
| Dahale et al. | An overview of DC-DC converter topologies and controls in DC microgrid | |
| Hofer et al. | Hybrid AC/DC building microgrid for solar PV and battery storage integration | |
| US7719864B2 (en) | Pulse amplitude modulated current converter | |
| US10340702B2 (en) | Optimizer battery PV energy generation systems | |
| EP2770539A1 (en) | Electronic management system for electricity generating cells, electricity generating system and method for electronically managing energy flow | |
| US10700636B2 (en) | Installation for powering auxiliary equipment in electrical energy generation plants | |
| US20130026838A1 (en) | Solar power generating system and junction box thereof | |
| CN112868153B (en) | Converter, method and system applied to photovoltaic power generation system | |
| EP4254783A1 (en) | Photovoltaic power generation system | |
| US7929324B1 (en) | Blade architecture array converter | |
| CN104425646A (en) | Solar-battery-module shielding-compensating device | |
| CN104170202A (en) | Renewable energy unit having simplified connector technology | |
| KR20210121588A (en) | Differential power conditioning system for improving performance of photovoltaic power generation system | |
| US9948172B2 (en) | Power converter for eliminating ripples | |
| Nag et al. | A multi-input single-control (MISC) battery charger for DC nanogrids | |
| CN109245711B (en) | Photovoltaic system safety protection equipment | |
| Bodele et al. | Multi‐input battery‐integrated single‐stage DC‐DC converter for reliable operation of solar photovoltaic‐based systems | |
| US9647570B2 (en) | Photovoltaic system and method of operation | |
| JPH06311651A (en) | Photovoltaic power generation system | |
| US9461581B2 (en) | Shadowing compensation device for solar cell module | |
| CN106505945B (en) | Method for operating a photovoltaic system | |
| TWI505598B (en) | Shadowing compensation device for solar cell modular | |
| KR20130006059A (en) | Module intergrated power regulator system | |
| US20240004413A1 (en) | An extender and stabilizer for solar string power generation systems and a method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |