CN205389054U - Photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device - Google Patents
Photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device Download PDFInfo
- Publication number
- CN205389054U CN205389054U CN201620221610.9U CN201620221610U CN205389054U CN 205389054 U CN205389054 U CN 205389054U CN 201620221610 U CN201620221610 U CN 201620221610U CN 205389054 U CN205389054 U CN 205389054U
- Authority
- CN
- China
- Prior art keywords
- lightning
- lightning protection
- fuse
- air switch
- protection module
- 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
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
-
- 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
The utility model discloses a photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device, include the lightning protection module, fuse, one way air switch and the double - circuit air switch that all install at outdoor waterproof type machine incasement, the positive output end of this photovoltaic power generation board inserts photovoltaic grid -connected inverter and just inserts ground at this photovoltaic grid -connected inverter's incoming end after connecting gradually fuse and lightning protection module after one way air switch is connected to the wire, this photovoltaic grid -connected inverter's positive cathode output is through inserting the commercial power side and inserting ground at the electric contact between the two double - circuit air switch after connecting gradually fuse and lightning protection module after connecting gradually two double - circuit air switch. It has following advantage: be applicable to the small -size photovoltaic grid -connected power station 's of family lightning protection, lightning protection distribution device's line structure is simple, and the wiring is concentrated, and lightning proof effect is good, and is with low costs.
Description
Technical field
This utility model relates to a kind of photovoltaic electrical network power distribution equipment, particularly relates to a kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit.
Background technology
Currently, global energy is in short supply, and people more and more begin to use the energy the supplementing and succedaneum as traditional energy of green, novel, environmental protection, and solar energy is exactly one of which.A kind of supply that solar energy is powered as existing electric main, is generated electricity by solar panel, through photovoltaic combining inverter, the unidirectional current that photovoltaic power generation plate produces is incorporated to civil power side and forms alternating current for existing each electrical equipment.
There are two aspects in the source that pv grid-connected plant is generally struck by lightning, on the one hand from the thunderbolt of outdoor photovoltaic power generation plate, on the other hand from the thunderbolt of civil power electric wire sensing.Traditional lightning-protection module needed for grid-connected distribution is more with each distribution component and installs relatively decentralized, line between electrical equipment and electrical equipment is long, lightning protection effect is poor, thunderbolt event is made often to have generation, secondly for the home-use grid-connected power station of low profile photovoltaic, its supply voltage is relatively low, bulk supply circuit is relatively simple, and existing lightning-protection module volume is generally large, it is suitable for lightning protection voltage higher, and it is expensive, therefore, in order to avoid thunderbolt cause to family's pv grid-connected plant infringement and improve lightning protection effect, a lightning protection effect is more excellent, less costly, the lightning protection power distribution unit of simple in construction is urgently developed.
Utility model content
This utility model provides a kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit, which overcomes the deficiencies in the prior art described in background technology.
This utility model solves its technical problem and be the technical scheme is that
A kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit, including the lightning-protection module being all arranged in outdoor water-proof type cabinet, fuse, single channel air switch and two-way air switch, the cathode output end of photovoltaic power generation plate connects access photovoltaic combining inverter and the incoming end at this photovoltaic combining inverter after single channel air switch through wire and accesses ground after being sequentially connected with fuse and lightning-protection module；The both positive and negative polarity outfan of this photovoltaic combining inverter is through being sequentially connected with two two-way air switches and be followed by civil power side and the electric contact between two two-way air switches accessing ground after being sequentially connected with fuse and lightning-protection module.
Among one embodiment: described photovoltaic power generation plate has multichannel cathode output end, each road cathode output end correspondence connects the incoming end accessing photovoltaic combining inverter and photovoltaic combining inverter corresponding to each road cathode output end after single channel air switch and accesses ground after being sequentially connected with fuse and lightning-protection module.
Among one embodiment: each road electric contact corresponding between described two two-way air switches accesses ground after being sequentially connected with fuse and lightning-protection module.
The technical program is compared with background technology, and it has the advantage that
This utility model is applicable to the lightning protection of small household pv grid-connected plant, and the line construction of lightning protection power distribution unit is simple, and wiring is concentrated, and lightning protection effect is good, and cost is low.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 depicts the wire connection structure figure of this utility model device.
Detailed description of the invention
Refer to Fig. 1, a kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit, it includes the lightning-protection module 4, fuse 5, single channel air switch 6 and the two-way air switch 7 that are all arranged in outdoor water-proof type cabinet, and the cathode output end of photovoltaic power generation plate 1 accesses photovoltaic combining inverter 2 and accesses ground at the incoming end of this photovoltaic combining inverter 2 after being sequentially connected with fuse 5 and lightning-protection module 4 after being connected single channel air switch 6；The both positive and negative polarity outfan of this photovoltaic combining inverter 2 is through being sequentially connected with two two-way air switches 7 and be followed by civil power side 3 and the electric contact between two two-way air switches 7 accessing ground after being sequentially connected with fuse 5 and lightning-protection module 4.
Described photovoltaic power generation plate 1 has multichannel cathode output end, and each road cathode output end correspondence connects after single channel air switch 6 incoming ends accessing photovoltaic combining inverters 2 and photovoltaic combining inverter 2 corresponding to each road cathode output end and accesses ground after being sequentially connected with fuse 5 and lightning-protection module 4.
Each road electric contact corresponding between described two two-way air switches 7 accesses ground after being sequentially connected with fuse 5 and lightning-protection module 4.
When outdoor photovoltaic power generation plate 1 is struck by lightning, the high voltage produced and big electric current leak into rapidly the earth through fuse 5, lightning-protection module 4, fuse 5 can fusing, single channel air switch 6 will disconnect automatically automatically, cut off the connection of photovoltaic combining inverter 2 and photovoltaic power generation plate 1；When being struck by lightning in civil power side 3, the high voltage produced and big electric current leak into rapidly the earth through fuse 5, lightning-protection module 4, fuse 5 can fusing, two-way air switch 7 will disconnect automatically automatically, cut off the connection of photovoltaic combining inverter 2 and civil power side 3, it is ensured that equipment exempts from by broken by lightning.
This utility model is applicable to the lightning protection of small household pv grid-connected plant, and the line construction of lightning protection power distribution unit is simple, and wiring is concentrated, and lightning protection effect is good, and cost is low.
The above, be only this utility model preferred embodiment, therefore can not limit the scope that this utility model is implemented according to this, and the equivalence namely made according to this utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that this utility model is contained.
Claims (3)
1. a pv grid-connected plant alternating current-direct current lightning protection power distribution unit, it is characterized in that: include the lightning-protection module, fuse, single channel air switch and the two-way air switch that are all arranged in outdoor water-proof type cabinet, the cathode output end of photovoltaic power generation plate connects access photovoltaic combining inverter and the incoming end at this photovoltaic combining inverter after single channel air switch through wire and accesses ground after being sequentially connected with fuse and lightning-protection module；The both positive and negative polarity outfan of this photovoltaic combining inverter is through being sequentially connected with two two-way air switches and be followed by civil power side and the electric contact between two two-way air switches accessing ground after being sequentially connected with fuse and lightning-protection module.
2. a kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit according to claim 1, it is characterized in that: described photovoltaic power generation plate has multichannel cathode output end, each road cathode output end correspondence connects the incoming end accessing photovoltaic combining inverter and photovoltaic combining inverter corresponding to each road cathode output end after single channel air switch and accesses ground after being sequentially connected with fuse and lightning-protection module.
3. a kind of pv grid-connected plant alternating current-direct current lightning protection power distribution unit according to claim 1, it is characterised in that: each road electric contact corresponding between described two two-way air switches accesses ground after being sequentially connected with fuse and lightning-protection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221610.9U CN205389054U (en) | 2016-03-22 | 2016-03-22 | Photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620221610.9U CN205389054U (en) | 2016-03-22 | 2016-03-22 | Photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205389054U true CN205389054U (en) | 2016-07-20 |
Family
ID=56380771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620221610.9U Expired - Fee Related CN205389054U (en) | 2016-03-22 | 2016-03-22 | Photovoltaic grid -connected power station alternating current -direct current lightning protection distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205389054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656018A (en) * | 2016-11-15 | 2017-05-10 | 珠海格力电器股份有限公司 | Solar photovoltaic power generation system |
-
2016
- 2016-03-22 CN CN201620221610.9U patent/CN205389054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106656018A (en) * | 2016-11-15 | 2017-05-10 | 珠海格力电器股份有限公司 | Solar photovoltaic power generation system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20180322 |