CN205104917U - Contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence - Google Patents
Contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence Download PDFInfo
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- CN205104917U CN205104917U CN201520828097.5U CN201520828097U CN205104917U CN 205104917 U CN205104917 U CN 205104917U CN 201520828097 U CN201520828097 U CN 201520828097U CN 205104917 U CN205104917 U CN 205104917U
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- power generation
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- distribution cabinet
- photovoltaic power
- photovoltaic
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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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Abstract
The utility model relates to a contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence, including photovoltaic power generation unit, the DC distribution cabinet, grid -connected inverter, the powerstat, the filter, fairing and controlling means, wherein photovoltaic power generation is single through DC distribution cabinet and grid -connected inverter electrical connection, grid -connected inverter and powerstat electrical connection, fairing is located grid -connected inverter's input and output, the filter is located the output of powerstat, grid -connected inverter is three altogether, and respectively through the wire intercommunication between three grid -connected inverter, and all establish at least one control relay between per two adjacent grid -connected inverter on the wire that communicates each other, controlling means respectively with the DC distribution cabinet, grid -connected inverter, powerstat and control relay electrical connection. This novel one side is improved traditional photovoltaic power generation and is transported the system's complicacy that is incorporated into the power networks, and on the other hand can integrate the modulation with the electric energy that photovoltaic system provided according to the use needs.
Description
Technical field
The utility model relates to a kind of photovoltaic power generation grid-connecting operational system, is exactly that a kind of intelligence concentrates inversion transformation photovoltaic power generation grid-connecting system.
Background technology
Current photo-voltaic power generation station obtains gradually to be promoted and application, but due to photovoltaic generation, by factor of natural environment, often dispersiveness is stronger, and the energy output of single photovoltaic power generation equipment is also relatively low, the electric energy that photovoltaic generation obtains simultaneously is direct current, cannot directly and power supply grid direct grid-connected run, therefore result in current photovoltaic generating system in actual motion, often need to build a large amount of inversions, commutation system, on the one hand the electric energy memory of photovoltaic power generation equipment is confluxed, on the other hand commutation inversion is carried out to it, make it effectively can meet the needs run with power supply grid, but find in practice, due to current volume inversion, the integration degree of commutation system is lower, therefore current photovoltaic inversion is caused, commutation system complex structure, and need to be equipped with a large amount of inverters, the equipment such as transformer, thus seriously reduce flexibility and the reliability of photovoltaic generation operation on the one hand, also photovoltaic generating system construction and operating cost is caused to increase on the other hand, thus significantly limit the promotion and application of photovoltaic generating system, therefore for this present situation, in the urgent need to developing a kind of novel photovoltaic power generation grid-connecting system, with the needs that satisfied reality uses.
Utility model content
For the deficiency that prior art exists, the utility model provides a kind of intelligence to concentrate inversion transformation photovoltaic power generation grid-connecting system, this novel system framework framework is simple, integration degree is high and operation automaticity is high, effectively improve on the one hand conventional photovoltaic generating fortune to be incorporated into the power networks system complex, the drawback that inverter transformer is numerous, simplify system configuration, improve operation automaticity, and reduce construction and operating cost, also the electric energy provided by photovoltaic system can be needed to carry out integration modulation according to use on the other hand, thus meet the needs of multiple electric power supply and output, thus greatly improve operational flexibility and the reliability of photovoltaic generating system.
To achieve these goals, the utility model realizes by the following technical solutions:
A kind of intelligence concentrates inversion transformation photovoltaic power generation grid-connecting system, comprise photovoltaic generation unit, DC power distribution cabinet, combining inverter, voltage regulating transformer, filter, rectifying device and control device, wherein photovoltaic generation unit at least one, and be electrically connected by DC power distribution cabinet and combining inverter, combining inverter and voltage regulating transformer are electrically connected, rectifying device is positioned at input and the output of combining inverter, filter is positioned at the output of voltage regulating transformer, combining inverter totally three, and be communicated with respectively by wire between three combining inverters, and at least one control relay all established by the wire be interconnected between every two adjacent combining inverters, control device respectively with DC power distribution cabinet, combining inverter, voltage regulating transformer and control relay electrical connection.
Further, when described photovoltaic generation unit is two or more, be then electrically connected through collector-shoe gear and DC power distribution cabinet between each photovoltaic generation unit.
Further, described DC power distribution cabinet at least two, and parallel with one another.
Further, described DC power distribution cabinet separately establishes power storage cabinet, and power storage cabinet is electrically connected by charge-discharge controller and DC power distribution cabinet.
Further, described each combining inverter realizes series connection and parallel connection by wire and control relay.
Further, be star-like connection or triangle connected mode between described each combining inverter.
Further, described voltage regulating transformer is two winding transformer.
This novel system framework framework is simple, integration degree is high and it is high to run automaticity, effectively improve on the one hand conventional photovoltaic generating fortune to be incorporated into the power networks system complex, the drawback that inverter transformer is numerous, simplify system configuration, improve operation automaticity, and reduce construction and operating cost, also the electric energy provided by photovoltaic system can be needed to carry out integration modulation according to use on the other hand, thus meet the needs of multiple electric power supply and output, thus greatly improve operational flexibility and the reliability of photovoltaic generating system.
Accompanying drawing explanation
The utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is this new structure schematic diagram.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model further.
One intelligence as described in Figure 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, comprise photovoltaic generation unit 1, DC power distribution cabinet 2, combining inverter 3, voltage regulating transformer 4, filter 5, rectifying device 6 and control device 7, wherein photovoltaic generation unit 1 at least one, and be electrically connected by DC power distribution cabinet 2 and combining inverter 3, combining inverter 3 and voltage regulating transformer 3 are electrically connected, rectifying device 6 is positioned at input and the output of combining inverter 3, filter 5 is positioned at the output of voltage regulating transformer 4, combining inverter 3 totally three, and be communicated with respectively by wire between three combining inverters 3, and at least one control relay 8 all established by the wire be interconnected between every two adjacent combining inverters 3, control device 7 respectively with DC power distribution cabinet 2, combining inverter 3, voltage regulating transformer 4 and control relay 8 are electrically connected.
In the present embodiment, when described photovoltaic generation unit 1 is two or more, be then electrically connected through collector-shoe gear 11 and DC power distribution cabinet 2 between each photovoltaic generation unit 1.
In the present embodiment, described DC power distribution cabinet 2 at least two, and parallel with one another.
In the present embodiment, described DC power distribution cabinet 2 separately establishes power storage cabinet 9, and power storage cabinet 9 is electrically connected by charge-discharge controller 10 and DC power distribution cabinet 2.
In the present embodiment, described each combining inverter 3 realizes series connection and parallel connection by wire and control relay 8.
In the present embodiment, be star-like connection or triangle connected mode between described each combining inverter 3.
In the present embodiment, described voltage regulating transformer 4 is two winding transformer.
This novel system framework framework is simple, integration degree is high and it is high to run automaticity, effectively improve on the one hand conventional photovoltaic generating fortune to be incorporated into the power networks system complex, the drawback that inverter transformer is numerous, simplify system configuration, improve operation automaticity, and reduce construction and operating cost, also the electric energy provided by photovoltaic system can be needed to carry out integration modulation according to use on the other hand, thus meet the needs of multiple electric power supply and output, thus greatly improve operational flexibility and the reliability of photovoltaic generating system.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. an intelligence concentrates inversion transformation photovoltaic power generation grid-connecting system, it is characterized in that: described intelligence concentrates inversion transformation photovoltaic power generation grid-connecting system to comprise photovoltaic generation unit, DC power distribution cabinet, combining inverter, voltage regulating transformer, filter, rectifying device and control device, wherein said photovoltaic generation unit at least one, and be electrically connected by DC power distribution cabinet and combining inverter, described combining inverter and voltage regulating transformer are electrically connected, described rectifying device is positioned at input and the output of combining inverter, described filter is positioned at the output of voltage regulating transformer, described combining inverter totally three, and be communicated with respectively by wire between three combining inverters, and at least one control relay all established by the wire be interconnected between every two adjacent combining inverters, described control device respectively with DC power distribution cabinet, combining inverter, voltage regulating transformer and control relay electrical connection.
2. a kind of intelligence according to claim 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, it is characterized in that, when described photovoltaic generation unit is two or more, is then electrically connected through collector-shoe gear and DC power distribution cabinet between each photovoltaic generation unit.
3. a kind of intelligence according to claim 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, it is characterized in that, described DC power distribution cabinet at least two, and parallel with one another.
4. a kind of intelligence according to claim 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, and it is characterized in that, described DC power distribution cabinet separately establishes power storage cabinet, and power storage cabinet is electrically connected by charge-discharge controller and DC power distribution cabinet.
5. a kind of intelligent concentrated inversion transformation photovoltaic power generation grid-connecting system according to claim 1, it is characterized in that, described each combining inverter realizes series connection and parallel connection by wire and control relay.
6. a kind of intelligence according to claim 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, and it is characterized in that, be star-like connection or triangle connected mode between described each combining inverter.
7. a kind of intelligence according to claim 1 concentrates inversion transformation photovoltaic power generation grid-connecting system, and it is characterized in that, described voltage regulating transformer is two winding transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828097.5U CN205104917U (en) | 2015-10-23 | 2015-10-23 | Contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828097.5U CN205104917U (en) | 2015-10-23 | 2015-10-23 | Contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104917U true CN205104917U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520828097.5U Expired - Fee Related CN205104917U (en) | 2015-10-23 | 2015-10-23 | Contravariant vary voltage photovoltaic power generation and network system are concentrated to intelligence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186572A (en) * | 2015-10-23 | 2015-12-23 | 苏州华安普电力科技股份有限公司 | Intelligent and concentrated inversion voltage-variable photovoltaic power generation grid-connected system |
-
2015
- 2015-10-23 CN CN201520828097.5U patent/CN205104917U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186572A (en) * | 2015-10-23 | 2015-12-23 | 苏州华安普电力科技股份有限公司 | Intelligent and concentrated inversion voltage-variable photovoltaic power generation grid-connected 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: 20160323 Termination date: 20171023 |