CN104300576A - Resident grid-connected photovoltaic power generation system - Google Patents
Resident grid-connected photovoltaic power generation system Download PDFInfo
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- CN104300576A CN104300576A CN201410463314.5A CN201410463314A CN104300576A CN 104300576 A CN104300576 A CN 104300576A CN 201410463314 A CN201410463314 A CN 201410463314A CN 104300576 A CN104300576 A CN 104300576A
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- grid
- resident
- connecting line
- switch
- photovoltaic system
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- 238000010248 power generation Methods 0.000 title abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- H02J3/383—
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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)
Abstract
The invention discloses a resident grid-connected photovoltaic power generation system. The resident grid-connected photovoltaic power generation system comprises an electricity meter, a family inlet wire main air switch, a family electric device, a grid connection switch, a solar inverter device and a subsidy meter. The electricity meter is connected with one side of a power grid, the family inlet wire main air switch is connected with the electricity meter, the input end of the family electric device is connected with the output end of the family inlet wire main air switch, the output end of the solar inverter device is connected with the input end of the grid connection switch, the subsidy meter is used for counting generated energy which is used as the main basis for on-grid energy settlement, the output end of the subsidy meter is connected with the input end of the family inlet wire main air switch through a first connecting wire, and the input end of the subsidy meter is connected with the output end of the grid connection switch through a second connecting wire. The resident grid-connected photovoltaic power generation system has the advantages that according to the electricity meter installation conditions, schemes and assembly specifications are formulated for resident single-point grid-connected photovoltaic power generation connection and electricity energy subsidy meter installation, and security risks of resident grid-connected photovoltaic power generation are avoided.
Description
Technical field
The present invention relates to a kind of photovoltaic generating system, be specifically related to a kind of resident's grid-connected photovoltaic 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.
Nowadays, distributed photovoltaic generates electricity by way of merging two or more grid systems will become the useful supplement of bulk power grid, but when the unordered access of inhabitant distribution formula photovoltaic generation, unordered management, a series of adverse effect will be caused to electrical network, therefore specification distributed photovoltaic power generation is needed to access electric power network technique, standard and assembling specification are formulated in the installation of the wiring grid-connected to domestic consumer and electricity subsidy table meter, actively push forward the orderly development that distributed power source is grid-connected.
Summary of the invention
The object of the present invention is to provide a kind of resident's grid-connected photovoltaic system, for the feature of distributed photovoltaic power generation, scheme and assembling specification have been formulated to the connection of resident's single-point photovoltaic power generation grid-connecting and the installation of electricity subsidy table meter.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of resident's grid-connected photovoltaic system, it is characterized in that, this system comprises:
Connect the ammeter of electrical network side;
The total air switch of family's inlet wire, it is connected with described ammeter;
Household electricity equipment, its input is connected with the output of described family inlet wire air switch;
Grid-connected switch;
Solar inverter device, its output is connected with the input of described grid-connected switch;
Subsidy table meter, for adding up energy output and the Main Basis settled accounts as electricity volume, its output is connected by the first connecting line with the input of the total air switch of described family inlet wire, and its input is connected by the second connecting line with the output of described grid-connected switch.
Above-mentioned resident's grid-connected photovoltaic system, wherein: the outside that described subsidy table meter is arranged on that the table case of described ammeter is inner, side or user always enter.
Above-mentioned resident's grid-connected photovoltaic 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 resident's grid-connected photovoltaic system, wherein: the first described connecting line and the second connecting line all select copper core RVV or single-core line.
Above-mentioned resident's grid-connected photovoltaic system, wherein: when the single-phase access capacity of solar inverter device is less than 5KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 4mm2.
Above-mentioned resident's grid-connected photovoltaic system, wherein: when the single-phase access capacity of solar inverter device is less than 8KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 6mm2.
Above-mentioned resident's grid-connected photovoltaic system, wherein: during the access of solar inverter device three-phase, described first connecting line and the second connecting line all adopt cross section to be greater than the three core RVV of 6mm2.
Above-mentioned resident's grid-connected photovoltaic system, wherein: described grid-connected switch adopts band overcurrent protective switch, and its overcurrent must not be greater than 1.5 times of described solar inverter device rated current.
Above-mentioned resident's grid-connected photovoltaic system, wherein: the rated current of described grid-connected switch is 1 ~ 1.2 times of described solar inverter device rated current.
The present invention compared with prior art has the following advantages: according to the installation situation of ammeter, has formulated scheme and assembling specification, evade the security risk of resident's photovoltaic power generation grid-connecting to the connection of resident's single-point photovoltaic power generation grid-connecting and the installation of electricity subsidy table meter.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of resident's grid-connected photovoltaic system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, a kind of resident's grid-connected photovoltaic system, it comprises: the ammeter connecting electrical network side; The total air switch of family's inlet wire, it is connected with described ammeter; Household electricity equipment, its input is connected with the output of described family inlet wire air switch; Grid-connected switch; Solar inverter device, its output is connected with the input of described grid-connected switch; Subsidy table meter, for adding up energy output and the Main Basis settled accounts as electricity volume, its output is connected by the first connecting line with the input of the total air switch of described family inlet wire, and its input is connected by the second connecting line with the output of described grid-connected switch.
Described subsidy table meter is to be arranged on outside for basic principle, be arranged on the table case inside of described ammeter, side as far as possible, when in the table case connecting ammeter or when beside has any problem, the outside always entered in user house can be placed in, and enter room by connecting line is through walls.
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, and can install power information collection additional, as the clearing Main Basis of marketing with net electricity simultaneously.
Described grid-connected switch adopts band overcurrent protective switch, and its overcurrent must not be greater than 1.5 times of described solar inverter device rated current, is advisable with 1 ~ 1.2 times.
The first described connecting line and the second connecting line all adopt copper core RVV or single-core line, and carry out comprehensive selection according to user's access capacity and wire diameter standard: when the single-phase access capacity of solar inverter device is less than 5KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 4mm2; When the single-phase access capacity of solar inverter device is less than 8KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 6mm2; When solar inverter device three-phase accesses, described first connecting line and the second connecting line all adopt cross section to be greater than the three core RVV of 6mm2.
In the present invention, described solar inverter device converts solar energy into AC energy, via subsidy table meter and Bidirectional intelligent ammeter statistics electricity volume, and finally flows into power distribution network, realizes generating electricity by way of merging two or more grid systems.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. resident's grid-connected photovoltaic system, is characterized in that, this system comprises:
Connect the ammeter of electrical network side;
The total air switch of family's inlet wire, it is connected with described ammeter;
Household electricity equipment, its input is connected with the output of described family inlet wire air switch;
Grid-connected switch;
Solar inverter device, its output is connected with the input of described grid-connected switch;
Subsidy table meter, for adding up energy output and the Main Basis settled accounts as electricity volume, its output is connected by the first connecting line with the input of the total air switch of described family inlet wire, and its input is connected by the second connecting line with the output of described grid-connected switch.
2. resident's grid-connected photovoltaic system as claimed in claim 1, is characterized in that: the outside that described subsidy table meter is arranged on that the table case of described ammeter is inner, side or user always enter.
3. resident's grid-connected photovoltaic system as claimed in claim 1, 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.
4. resident's grid-connected photovoltaic system as claimed in claim 3, is characterized in that: the first described connecting line and the second connecting line all select copper core RVV or single-core line.
5. resident's grid-connected photovoltaic system as claimed in claim 4, it is characterized in that: when the single-phase access capacity of solar inverter device is less than 5KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 4mm2.
6. resident's grid-connected photovoltaic system as claimed in claim 4, it is characterized in that: when the single-phase access capacity of solar inverter device is less than 8KW, described first connecting line and the second connecting line all adopt cross section to be greater than the two core RVV of 6mm2.
7. resident's grid-connected photovoltaic system as claimed in claim 4, is characterized in that: during the access of solar inverter device three-phase, described first connecting line and the second connecting line all adopt cross section to be greater than the three core RVV of 6mm2.
8. resident's grid-connected photovoltaic system as claimed in claim 1, is characterized in that: described grid-connected switch adopts band overcurrent protective switch, and its overcurrent must not be greater than 1.5 times of described solar inverter device rated current.
9. resident's grid-connected photovoltaic system as claimed in claim 8, is characterized in that: the rated current of described grid-connected switch is 1 ~ 1.2 times of described solar inverter device rated current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463314.5A CN104300576A (en) | 2014-09-12 | 2014-09-12 | Resident grid-connected photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410463314.5A CN104300576A (en) | 2014-09-12 | 2014-09-12 | Resident grid-connected photovoltaic power generation system |
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| Publication Number | Publication Date |
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| CN104300576A true CN104300576A (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410463314.5A Pending CN104300576A (en) | 2014-09-12 | 2014-09-12 | Resident grid-connected photovoltaic power generation system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090008998A1 (en) * | 2005-08-03 | 2009-01-08 | Centre For Appropriate Technology Inc. | Electrical Power Distribution and Control System |
| CN103595348A (en) * | 2013-11-19 | 2014-02-19 | 安泰科技股份有限公司 | Household photovoltaic intelligent control system |
| CN203826990U (en) * | 2014-05-08 | 2014-09-10 | 中国矿业大学 | Household distributed photovoltaic grid-connected power generation device |
-
2014
- 2014-09-12 CN CN201410463314.5A patent/CN104300576A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090008998A1 (en) * | 2005-08-03 | 2009-01-08 | Centre For Appropriate Technology Inc. | Electrical Power Distribution and Control System |
| CN103595348A (en) * | 2013-11-19 | 2014-02-19 | 安泰科技股份有限公司 | Household photovoltaic intelligent control system |
| CN203826990U (en) * | 2014-05-08 | 2014-09-10 | 中国矿业大学 | Household distributed photovoltaic grid-connected power generation device |
Non-Patent Citations (1)
| Title |
|---|
| 黎金锋等: ""计及户用分布式光伏电站的智能家庭能效管理系统控制策略研究"", 《电器与能效管理技术》 * |
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Application publication date: 20150121 |