CN204190399U - Unit photovoltaic, trilogy supply grid-connected system - Google Patents
Unit photovoltaic, trilogy supply grid-connected system Download PDFInfo
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- CN204190399U CN204190399U CN201420523194.9U CN201420523194U CN204190399U CN 204190399 U CN204190399 U CN 204190399U CN 201420523194 U CN201420523194 U CN 201420523194U CN 204190399 U CN204190399 U CN 204190399U
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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 discloses a kind of unit photovoltaic, trilogy supply grid-connected system.This system comprises: the ammeter connecting electrical network side; First unit bus, its connect described in ammeter; First power load, its connect described in the first unit bus; First grid-connected switch, its connect described in the first unit bus; First transformer; Some first generates electricity by way of merging two or more grid systems unit, and it is connected to described first grid-connected switch by the first transformer; First subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some first, it to be arranged on described first grid-connected switch and to be connected in series with described first grid-connected switch.Its advantage is: according to the feature of distributed photovoltaic, trilogy supply generating, has formulated scheme and assembling specification, evade the security risk of unit electricity generation grid-connecting to the connection of unit photovoltaic, trilogy supply electricity generation grid-connecting and the installation of electricity subsidy table meter.
Description
Technical field
The utility model relates to a kind of photovoltaic generating system, is specifically related to a kind of unit photovoltaic, trilogy supply grid-connected system.
Background technology
Distributed power source refers to and is positioned near user, by generate electricity can local use, with 10KV and following electric pressure access electrical network, and single and site total installation of generating capacity must not more than the generating of 6MW, it contains the types such as solar energy, natural gas, biomass energy, geothermal energy, oceanic energy, comprehensive utilization of resources generating.According to electric energy consumption mode, distributed electrical source item can be divided into whole online, all use by oneself, remaining electricity online three kinds of generating power for their own use.
If distributed power source is grid-connected with unit generation mode, mainly can be divided into photovoltaic power generation grid-connecting and trilogy supply electricity generation grid-connecting two kinds according to access style, and its pattern of generating power for their own use remaining electricity online more contributes to the Optimum utilization of the energy, becomes the useful supplement of bulk power grid; But when distributed photovoltaic, trilogy supply generate electricity unordered access, unordered management, a series of adverse effect will be caused to electrical network, therefore need specification distributed unit photovoltaic, trilogy supply to generate electricity and access electric power network technique, standard and assembling specification are formulated in the installation of the wiring grid-connected to unit and electricity subsidy table meter, actively push forward the orderly development that distributed power source is grid-connected.
Utility model content
The purpose of this utility model is to provide a kind of unit photovoltaic, trilogy supply grid-connected system, for the feature of distributed photovoltaic, trilogy supply generating, scheme and assembling specification are formulated to the connection of unit photovoltaic, trilogy supply electricity generation grid-connecting and the installation of electricity subsidy table meter.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of unit photovoltaic, trilogy supply grid-connected system, it is characterized in that, this system comprises:
Connect the ammeter of electrical network side;
First unit bus, its connect described in ammeter;
First power load, its connect described in the first unit bus;
First grid-connected switch, its connect described in the first unit bus;
First transformer;
Some first generates electricity by way of merging two or more grid systems unit, and it is connected to described first grid-connected switch by the first transformer;
First subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some first, it to be arranged on described first grid-connected switch and to be connected in series with described first grid-connected switch.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein, this system also comprises;
Second transformer;
Second unit bus, it is connected to the first described unit bus by the second transformer;
Second power load, its connect described in the second unit bus;
Second grid-connected switch, its connect described in the second unit bus;
Some second generates electricity by way of merging two or more grid systems unit, its connect described in the second grid-connected switch;
Second subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some second, it to be arranged on described second grid-connected switch and to be connected in series with described second grid-connected switch.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: when the described some first total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described first subsidy table meter is connected with the described first grid-connected switch by current transformer.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: described ammeter adopts the intelligent meter meter possessing two-way function that is single-phase or three-phase, for adding up electricity volume and power consumption.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: each described first unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described first grid-connected switch by the first transformer.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: when the described some second total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described second subsidy table meter is connected with the described second grid-connected switch by current transformer.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: each described second unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described second grid-connected switch by the second transformer.
The utility model compared with prior art has the following advantages: according to the feature of distributed photovoltaic, trilogy supply generating, scheme and assembling specification are formulated to the connection of unit photovoltaic, trilogy supply electricity generation grid-connecting and the installation of electricity subsidy table meter, has evaded the security risk of unit electricity generation grid-connecting.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model unit photovoltaic, trilogy supply grid-connected system.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, a kind of unit photovoltaic, trilogy supply grid-connected system, is characterized in that, this system comprises: the ammeter connecting electrical network side; First unit bus, its connect described in ammeter; First power load, its connect described in the first unit bus; First grid-connected switch, its connect described in the first unit bus; First transformer; Some first generates electricity by way of merging two or more grid systems unit, and it is connected to described first grid-connected switch by the first transformer; First subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some first, it to be arranged on described first grid-connected switch and to be connected in series with described first grid-connected switch.
Described unit photovoltaic, trilogy supply grid-connected system also comprise; Second transformer; Second unit bus, it is connected to the first described unit bus by the second transformer; Second power load, its connect described in the second unit bus; Second grid-connected switch, its connect described in the second unit bus; Some second generates electricity by way of merging two or more grid systems unit, its connect described in the second grid-connected switch; Second subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some second, it to be arranged on described second grid-connected switch and to be connected in series with described second grid-connected switch.
Described ammeter adopts the intelligent meter meter possessing two-way function that is single-phase or three-phase, for adding up electricity volume and power consumption.
When the described some first total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described first subsidy table meter is connected with the described first grid-connected switch by current transformer.
Each described first unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described first grid-connected switch by the first transformer.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: when the described some second total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described second subsidy table meter is connected with the described second grid-connected switch by current transformer.
Above-mentioned unit photovoltaic, trilogy supply grid-connected system, wherein: each described second unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described second grid-connected switch by the second transformer.
In the utility model, DC conversion is alternating current through inverter by described each unit that generates electricity by way of merging two or more grid systems, import unit first bus again, the electricity volume of corresponding generator unit added up separately by each subsidy table meter, final by the total electricity volume of Bidirectional intelligent ammeter statistical unit and power consumption, realize generating electricity by way of merging two or more grid systems.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection range of the present utility model should be limited to the appended claims.
Claims (7)
1. unit photovoltaic, a trilogy supply grid-connected system, is characterized in that, this system comprises:
Connect the ammeter of electrical network side;
First unit bus, its connect described in ammeter;
First power load, its connect described in the first unit bus;
First grid-connected switch, its connect described in the first unit bus;
First transformer;
Some first generates electricity by way of merging two or more grid systems unit, and it is connected to described first grid-connected switch by the first transformer;
First subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some first, it to be arranged on described first grid-connected switch and to be connected in series with described first grid-connected switch.
2. unit as claimed in claim 1 photovoltaic, trilogy supply grid-connected system, it is characterized in that, this system also comprises;
Second transformer;
Second unit bus, it is connected to the first described unit bus by the second transformer;
Second power load, its connect described in the second unit bus;
Second grid-connected switch, its connect described in the second unit bus;
Some second generates electricity by way of merging two or more grid systems unit, its connect described in the second grid-connected switch;
Second subsidy table meter, for adding up energy output and the Main Basis of unit electricity volume clearing of generating electricity by way of merging two or more grid systems as described some second, it to be arranged on described second grid-connected switch and to be connected in series with described second grid-connected switch.
3. unit as claimed in claim 1 photovoltaic, trilogy supply grid-connected system, it is characterized in that: when the described some first total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described first subsidy table meter is connected with the described first grid-connected switch by current transformer.
4. unit as claimed in claim 1 photovoltaic, trilogy supply grid-connected system, is characterized in that: described ammeter adopts the intelligent meter meter possessing two-way function that is single-phase or three-phase, for adding up electricity volume and power consumption.
5. unit as claimed in claim 1 photovoltaic, trilogy supply grid-connected system, it is characterized in that, each described first unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described first grid-connected switch by the first transformer.
6. unit as claimed in claim 2 photovoltaic, trilogy supply grid-connected system, it is characterized in that: when the described some second total access capacity generating electricity by way of merging two or more grid systems unit is greater than 50kW, described second subsidy table meter is connected with the described second grid-connected switch by current transformer.
7. unit as claimed in claim 2 photovoltaic, trilogy supply grid-connected system, it is characterized in that, each described second unit that generates electricity by way of merging two or more grid systems comprises: inverter auto-parallel switch or the grid-connected switch of generating set, it is connected to described second grid-connected switch by the second transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523194.9U CN204190399U (en) | 2014-09-12 | 2014-09-12 | Unit photovoltaic, trilogy supply grid-connected system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420523194.9U CN204190399U (en) | 2014-09-12 | 2014-09-12 | Unit photovoltaic, trilogy supply grid-connected system |
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| CN204190399U true CN204190399U (en) | 2015-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269880A (en) * | 2014-09-12 | 2015-01-07 | 国网上海市电力公司 | Unit photovoltaic and triple co-generation grid-connection electricity generation system |
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2014
- 2014-09-12 CN CN201420523194.9U patent/CN204190399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269880A (en) * | 2014-09-12 | 2015-01-07 | 国网上海市电力公司 | Unit photovoltaic and triple co-generation grid-connection electricity generation system |
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