CN202564966U - Photovoltaic system - Google Patents
Photovoltaic system Download PDFInfo
- Publication number
- CN202564966U CN202564966U CN2012201331667U CN201220133166U CN202564966U CN 202564966 U CN202564966 U CN 202564966U CN 2012201331667 U CN2012201331667 U CN 2012201331667U CN 201220133166 U CN201220133166 U CN 201220133166U CN 202564966 U CN202564966 U CN 202564966U
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- CN
- China
- Prior art keywords
- photovoltaic
- electrical network
- circuit breaker
- inverter
- filter
- 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.)
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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
- 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
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- Supply And Distribution Of Alternating Current (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present utility model discloses a photovoltaic system. The photovoltaic system is connected with an electrical network and is composed of n photovoltaic group strings, n DC EMC filters, an inverter, an LCL filter, an AC main contactor, an AC EMC filter, an AC circuit breaker and an AC lightning protection device, wherein n is an integral number not less than 1, the n photovoltaic group strings are respectively connected with input ends of the n DC EMC filters, output ends of the n DC EMC filters are respectively and successively connected with the inverter, the LCL filter, the AC main contactor, the AC EMC filter and the AC circuit breaker; and the other end of the AC circuit breaker is connected with the electrical network. In the system, solar energy photovoltaic generating electric energy generated by a photovoltaic array can be sent to the electrical network through the inverter, the electrical network is adopted as a storage system, power is supplied to the system, an electric energy source structure of the electrical network can be improved, the solar energy photovoltaic generating electric energy can be fully utilized as a kind of clean energy, pollution can be reduced, and the system is simple in structure, high in reliability and easy to popularize.
Description
Technical field
The utility model relates to a kind of photovoltaic system.
Background technology
Exhausted day by day along with traditional energy, with resource-constrained, with serious pollution fossil energy be master's energy resource structure part change into resource infinitely, the regenerative resource of clean is master's diversity, compound energy resource structure.Solar energy power generating belongs to the regenerative resource of cleaning, progressively applies at present.But traditional solar energy power generating is used to the generating network that isolates mostly, and battery stores is leaned in the generating on daytime, and use night, and the storage battery loss is big, and system effectiveness is low, and operating cost is high, the electric poor stability.
Therefore, the basic outlet of photovoltaic generation is to be incorporated into the power networks, and electrical network receives the photovoltaic energy as infinitely great stocking system.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art and a kind of photovoltaic system is provided, and this system links to each other with electrical network, to electrical network the sun electric energy that generating produces is provided, and it is simple in structure, and reliability is high, is easy to promote.
The purpose of the utility model is achieved in that
A kind of photovoltaic system of the utility model; This photovoltaic system links to each other with electrical network; It comprises n photovoltaic group string, a n direct current EMC filter, inverter, LCL filter, exchanges main contactor, exchanges EMC filter, AC circuit breaker, interchange lightning protection device; N is the integer more than or equal to 1, wherein:
Described n photovoltaic group string links to each other with the input of described n direct current EMC filter respectively;
The output of described n direct current EMC filter links to each other with the input of described inverter respectively;
Described inverter, LCL filter, interchange main contactor, interchange EMC filter link to each other with AC circuit breaker successively;
The other end of described AC circuit breaker links to each other with electrical network;
One of described interchange lightning protection device is terminated between described AC circuit breaker and the electrical network, other end ground connection.
Above-mentioned a kind of photovoltaic system, wherein, described photovoltaic group string is in series by 17 photovoltaic cells.
The utility model is delivered to the solar energy power generating electric energy that the photovoltaic array produces on the electrical network through inverter, with electrical network as stocking system, to its power supply; Help improving the energy source structure of electrical network; Make full use of this clean energy resource of solar energy power generating electric energy, reduce and pollute, and it is simple in structure; Reliability is high, is easy to promote.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
See also Fig. 1; The utility model photovoltaic system has been shown among the figure; This photovoltaic system links to each other with electrical network; It comprises n photovoltaic group string 1, a n direct current EMC filter 2, inverter 3, LCL filter 4, interchange main contactor 5, exchanges EMC filter 6, AC circuit breaker 7, exchanges lightning protection device 8, and n is the integer more than or equal to 1, wherein:
N photovoltaic group string 1 links to each other with the input of n direct current EMC filter 2 respectively;
The output of n direct current EMC filter 2 links to each other with the input of inverter 3 respectively;
Inverter 3, LCL filter 4, interchange main contactor 5, interchange EMC filter 6 link to each other with AC circuit breaker 7 successively;
The other end of AC circuit breaker 7 links to each other with electrical network;
Exchange one of lightning protection device 8 and be terminated between AC circuit breaker 7 and the electrical network other end ground connection.
Photovoltaic group string 1 is in series by 17 photovoltaic cells.
The direct current that the utility model photovoltaic system is exported photovoltaic cell through inverter 3 converts alternating current to, and then delivers to electrical network, and electrical network as stocking system, to its power supply, is helped improving the energy source structure of electrical network.
Above embodiment only supplies to explain the usefulness of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (2)
1. photovoltaic system; It is characterized in that; This photovoltaic system links to each other with electrical network; It comprises n photovoltaic group string, a n direct current EMC filter, inverter, LCL filter, exchanges main contactor, exchanges EMC filter, AC circuit breaker, interchange lightning protection device, and n is the integer more than or equal to 1, wherein:
Described n photovoltaic group string links to each other with the input of described n direct current EMC filter respectively;
The output of described n direct current EMC filter links to each other with the input of described inverter respectively;
Described inverter, LCL filter, interchange main contactor, interchange EMC filter link to each other with AC circuit breaker successively;
The other end of described AC circuit breaker links to each other with electrical network;
One of described interchange lightning protection device is terminated between described AC circuit breaker and the electrical network, other end ground connection.
2. a kind of photovoltaic system as claimed in claim 1 is characterized in that, described photovoltaic group string is in series by 17 photovoltaic cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201331667U CN202564966U (en) | 2012-03-31 | 2012-03-31 | Photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201331667U CN202564966U (en) | 2012-03-31 | 2012-03-31 | Photovoltaic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564966U true CN202564966U (en) | 2012-11-28 |
Family
ID=47214581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201331667U Expired - Lifetime CN202564966U (en) | 2012-03-31 | 2012-03-31 | Photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564966U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414361A (en) * | 2013-07-26 | 2013-11-27 | 常州佳讯光电产业发展有限公司 | Main circuit topological structure of single megawatt photovoltaic grid-connected inverter |
| CN103633865A (en) * | 2013-11-27 | 2014-03-12 | 苏州高创特新能源工程有限公司 | Large-power photovoltaic gird-connected inverter |
| CN104935203A (en) * | 2015-04-30 | 2015-09-23 | 祥天控股（集团）有限公司 | Solar inverter circuit |
-
2012
- 2012-03-31 CN CN2012201331667U patent/CN202564966U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414361A (en) * | 2013-07-26 | 2013-11-27 | 常州佳讯光电产业发展有限公司 | Main circuit topological structure of single megawatt photovoltaic grid-connected inverter |
| CN103633865A (en) * | 2013-11-27 | 2014-03-12 | 苏州高创特新能源工程有限公司 | Large-power photovoltaic gird-connected inverter |
| CN104935203A (en) * | 2015-04-30 | 2015-09-23 | 祥天控股（集团）有限公司 | Solar inverter circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |
|
| CX01 | Expiry of patent term |