CN203896296U - Photovoltaic grid connected device - Google Patents
Photovoltaic grid connected device Download PDFInfo
- Publication number
- CN203896296U CN203896296U CN201420021855.8U CN201420021855U CN203896296U CN 203896296 U CN203896296 U CN 203896296U CN 201420021855 U CN201420021855 U CN 201420021855U CN 203896296 U CN203896296 U CN 203896296U
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- CN
- China
- Prior art keywords
- photovoltaic
- module
- grid
- output
- connected 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.)
- Expired - Fee Related
Links
- 238000010248 power generation Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 16
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 4
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a photovoltaic grid connected device comprising a box body, a protection module, a boosting module, an inversion module, and a box cover. The input end of the protection module is connected with an output end of a photovoltaic power generation device, and the output end of the protection module is connected with the input end of the boosting module. The output end of the boosting module is connected with the input end of the inversion module, and the output end of the inversion module can be used for the power supply directly. The photovoltaic grid connected device is advantageous in that the protection function, the insulation function, the boosting function, and the inversion function are integrated into one body, and the DC of the photovoltaic assembly can be converted into the high voltage AC, and then the reverse voltage protection module of the photovoltaic assembly can be provided, and therefore the problems such as low power of the integrated serial connection photovoltaic assembly caused by the low power of the partial photovoltaic assembly, inconvenient maintenance of the faults of the photovoltaic system, and large electric power consumption of the low voltage DC photovoltaic power generation transmission system can be solved; the grid connected device is smart, and the size is small; the modularization is adopted, and the wiring is simple, and therefore the complexity of the externally connected lines is reduced, the power loss caused by the serial/parallel connection of the assembly can be reduced, and the output power of the photovoltaic assembly can be improved.
Description
Technical field
The utility model relates to a kind of grid-connecting apparatus of photovoltaic module.
Background technology
At present, the output voltage of known photovoltaic module is low, electric current is high, this feature causes the electrical losses of photovoltaic module large, power output is low, and photovoltaic module is output as direct current, in the time that system is installed, need to make photovoltaic module connect into photovoltaic array by the mode of series and parallel connections, then the output of photovoltaic array is put together to access inverter, obtain exchanging output through inverter, this has increased the danger of high direct voltage operation on the one hand, this system cabling complexity is lengthy and tedious on the other hand, and the maximal power tracing of inverter is based on whole photovoltaic array, if while having indivedual assemblies block or have other reasons to cause fault to occur because of foreign matter, inverter maximal power tracing will be adjusted the output that reduces whole photovoltaic array, like this, the fault of one block assembly may cause the reduction greatly of whole system output, and the inverter of high power capacity, the components and parts life-span is shorter, troublesome maintenance, once break down, by the normal operation of the whole photovoltaic system of impact.
Simultaneously; the terminal box that needs photovoltaic module realizes galvanic input; what need to adopt bypass diode does circuit protection and insulation-encapsulated etc.; therefore; in the urgent need to realizing protection, boost and the integrated integration module of inversion at assembly end, to realize the whole efficiency of the grid-connected of single photovoltaic module and optimization photovoltaic module system.
Summary of the invention
The utility model is a kind of grid-connecting apparatus of photovoltaic module, photovoltaic module end realize encapsulate, protect, boost and inversion integrated, realized the grid-connected of single photovoltaic module.A kind of photovoltaic grid-connected device; comprise box body, protection module, boost module and inversion module and lid; the input of described protection module connects the output of photovoltaic power generation equipment; the output of protection module connects the input of boost module; the output of boost module connects the input of inversion module, and the output of described inversion module is directly powered.
In an embodiment therein, this grid-connecting apparatus also comprises protection module detection port.
In an embodiment therein, this grid-connecting apparatus also comprises boost module detection port.
In an embodiment therein, this grid-connecting apparatus also comprises inversion module detection port.
Detection port is for the detection of modular character, and the error correction while going wrong for system maintenance detection or system detects.
In an embodiment therein, this grid-connecting apparatus also comprises telecommunication control port.
Telecommunication control port, for implementing the enforcement generating situation of RMON corresponding light photovoltaic assembly, record and the in good time generating situation of adding up this assembly, and according to demand problematic assembly is carried out to the long-range control of closing down, or according to demand when appropriate machine corresponding assembly is carried out to remote opening control etc.
In an embodiment therein, the direct voltage that the output of photovoltaic power generation equipment is input to protection module is 5-110V.
In an embodiment therein, the output AC voltage of inversion module output is 110-330V.
In an embodiment therein, the input of protection module adopts zinc-plated with the output of photovoltaic power generation equipment and is connected.
In an embodiment therein, box body and lid adopt light aluminum alloy, polyphenylene oxide polyphenylene oxide (PPO) or polyhenylene ether (PPE) to make.
In an embodiment therein, described protection module comprises the protective circuit that has at least 2 diodes, metal-oxide-semiconductor or IGBT to be formed in parallel.
In an embodiment therein, described protection module also comprises lightning rod, fin and ground protection unit.
In an embodiment therein, photovoltaic power generation equipment is photovoltaic module, and photovoltaic module is by 54,60,72 or 96 photovoltaic cell strings or be formed in parallel.
In an embodiment therein, photovoltaic grid-connected device can be arranged on the frame of described photovoltaic module or on photovoltaic module mounting bracket or on the stiffener of described photovoltaic module.
In an embodiment therein, the output of photovoltaic module, protection module input, protection module and protection module output adopt the sealing of encapsulating mode, plastic packaging mode or sealing box body mode.
The output of inversion module can be directly electrical network, storage battery or terminal use's electric power supply.
The utility model by protection, insulate, boost and invert function integrated; the direct current of photovoltaic module is become to High Level AC Voltage; and be provided with the anti-pressure protection module of photovoltaic module; the photovoltaic module power that solved the entirety serial connection causing because part component power is low is low, the fault of the photovoltaic system problems such as easy care, low-voltage direct photovoltaic generation conveying system power consumption be not large; the photovoltaic grid-connected device that the utility model provides is slim and graceful
Volume is little, and adopts modularization, and wiring is simple, has reduced the complexity of external circuit, reduces the power loss causing because of component string parallel connection, has improved the power output of photovoltaic module.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of photovoltaic grid-connected device;
Fig. 2 is the appearance assumption diagram of photovoltaic grid-connected device;
Fig. 3 is the schematic diagram of photovoltaic grid-connected device work.
1. photovoltaic module output 2. protection module input 3. protection module 4. protection module output 5. boost module input 6. boost module 7. boost module output 8. inversion module input 9. inversion module 10. inversion module output 11. box body 12. lid 13. component sealing region 14. protection module detection port 15. boost module detection port 16. inversion module detection port 17. telecommunication control port 18. photovoltaic module 19. photovoltaic grid-connected device 20. electrical network 21. storage battery 22. terminal use's electrical equipment
Embodiment
Please refer to Fig. 1, Fig. 2 and Fig. 3; the utility model embodiment is as follows: a kind of photovoltaic grid-connected device 19; comprise box body 11; protection module 3, boost module 6, inversion module 9 and lid 12 form; the input 2 of described protection module connects the output 1 of photovoltaic module; the output 4 of protection module connects the input 5 of boost module, and the output 7 of boost module connects the input 8 of inversion module, and the output 10 of described inversion module is directly powered.
Wherein in photovoltaic grid-connected device, also have protection module detection port 14, boost module detection port 15 and inversion module detection port 16, in the detection of modular character, the error correction while going wrong for system maintenance detection or system detects.In photovoltaic grid-connected device, also has telecommunication control port 17, for implementing the enforcement generating situation of RMON corresponding light photovoltaic assembly, record and the in good time generating situation of adding up this assembly, and according to demand problematic assembly is carried out to the long-range control of closing down, or according to demand when appropriate machine corresponding assembly is carried out to remote opening control etc.
Box body and lid adopt light aluminum alloy, polyphenylene oxide polyphenylene oxide (PPO) or polyhenylene ether (PPE) to make.
Protection module is to be at least the protective circuit that 2 bypass diodes, metal-oxide-semiconductor or IGBT are formed in parallel.Wherein bypass diode is mainly its protective effect, and the in the situation that in assembly, certain battery unit not generating electricity, the cell voltage of all the other series connection acts on bypass diode, and protection assembly is not burned.Protection module also comprises lightning rod, fin and ground protection unit.
First; adopt zinc-plated to be connected with the output 1 of photovoltaic module the protection module input 2 of photovoltaic grid-connected device; adopt aluminium nail to be fixed on the aluminium frame of photovoltaic module 18 photovoltaic grid-connected device 19, can certainly be rack-mount or the stiffener of described photovoltaic module 18 on.
Photovoltaic module 18 is by 54,60,72 or 96 photovoltaic cell strings or is formed in parallel.
Adopt one pack system or double-component condensed type organic silicon potting adhesive in component sealing region 13, the output of photovoltaic module 1, protection module input 2, protection module 3 and protection module output 4 are sealed.Also can only seal the output interface of assembly herein.Sealing means can adopt plastic packaging mode or sealing box body mode to seal.Sealing box body can adopt polyphenylene oxide polyphenylene oxide (PPO) or polyhenylene ether (PPE) to make.
After photovoltaic module 18 is connected with photovoltaic grid-connected device 19, the output voltage of photovoltaic module is 5-110V, and the output voltage of photovoltaic grid-connected device is 110-330V.Can be directly for electrical network 20, storage battery 21 or terminal use's electrical equipment 22 be powered.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (15)
1. a photovoltaic grid-connected device; it is characterized in that: comprise box body, protection module, boost module and inversion module and lid; the input of described protection module connects the output of photovoltaic power generation equipment; the output of protection module connects the input of boost module; the output of boost module connects the input of inversion module, and the output of described inversion module is directly powered.
2. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: this grid-connecting apparatus also comprises protection module detection port.
3. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: this grid-connecting apparatus also comprises boost module detection port.
4. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: this grid-connecting apparatus is inversion module detection port also.
5. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: this grid-connecting apparatus also comprises telecommunication control port.
6. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: the direct voltage that the output of photovoltaic power generation equipment is input to protection module is 5-110V.
7. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: the output AC voltage of inversion module output is 110-330V.
8. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: the input of protection module adopts zinc-plated with the output of photovoltaic power generation equipment and is connected.
9. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: box body and lid adopt light aluminum alloy, polyphenylene oxide polyphenylene oxide (PPO) or polyhenylene ether (PPE) to make.
10. a kind of photovoltaic grid-connected device according to claim 1, is characterized in that: described protection module comprises the protective circuit that has at least 2 diodes, metal-oxide-semiconductor or IGBT to be formed in parallel.
11. a kind of photovoltaic grid-connected devices according to claim 10, is characterized in that: described protection module also comprises lightning rod, fin and ground protection unit.
12. a kind of photovoltaic grid-connected devices according to claim 1, is characterized in that: photovoltaic power generation equipment is photovoltaic module, and photovoltaic module is by 54,60,72 or the series connection of 96 photovoltaic cells or be formed in parallel.
13. a kind of photovoltaic grid-connected devices according to claim 12, is characterized in that: this photovoltaic grid-connected device can be arranged on the frame of described photovoltaic module or on photovoltaic module mounting bracket or on the stiffener of described photovoltaic module.
14. a kind of photovoltaic grid-connected devices according to claim 13, is characterized in that: output, protection module input, protection module and the protection module output of photovoltaic module adopts the sealing of encapsulating mode, plastic packaging mode or sealing box body mode.
15. 1 kinds of application rights require the photovoltaic grid-connected device described in 1, it is characterized in that: the output of inversion module can be directly electrical network, storage battery or terminal use's electric power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021855.8U CN203896296U (en) | 2014-01-14 | 2014-01-14 | Photovoltaic grid connected device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021855.8U CN203896296U (en) | 2014-01-14 | 2014-01-14 | Photovoltaic grid connected device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896296U true CN203896296U (en) | 2014-10-22 |
Family
ID=51722648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420021855.8U Expired - Fee Related CN203896296U (en) | 2014-01-14 | 2014-01-14 | Photovoltaic grid connected device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779900A (en) * | 2014-01-14 | 2015-07-15 | 保利协鑫（苏州）新能源运营管理有限公司 | Photovoltaic grid-connected apparatus |
-
2014
- 2014-01-14 CN CN201420021855.8U patent/CN203896296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779900A (en) * | 2014-01-14 | 2015-07-15 | 保利协鑫（苏州）新能源运营管理有限公司 | Photovoltaic grid-connected apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |