CN203590124U - Off-grid photovoltaic power generation system - Google Patents
Off-grid photovoltaic power generation system Download PDFInfo
- Publication number
- CN203590124U CN203590124U CN201320818522.3U CN201320818522U CN203590124U CN 203590124 U CN203590124 U CN 203590124U CN 201320818522 U CN201320818522 U CN 201320818522U CN 203590124 U CN203590124 U CN 203590124U
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- China
- Prior art keywords
- load
- direct current
- photovoltaic
- generation system
- solar
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- 238000010248 power generation Methods 0.000 title abstract 2
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- 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
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Photovoltaic Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an off-grid photovoltaic power generation system which comprises a solar cell array for converting solar radiation to electric energy, a DC conflux cabinet for conflux of current of solar cells, a solar energy charging controller, a storage battery and an off-grid inverter. The solar cell array is accessed to an input side of the DC conflux cabinet through a line. An output side of the DC conflux cabinet is connected with the solar energy charging controller which is connected with the storage battery. The off-grid inverter is respectively connected with the storage battery and a user AC load. An AC micro-breaker, an AC lightning arrester and an electric energy meter are successively connected between the off-grid inverter and the user AC load. The utility model has beneficial effects as follows: due to a short-circuit protection design made in a system line, safety and stability of a grid-connected inverter are raised so as to guarantee stable, safe and reliable operation of the system, and it is of great significance for protecting safety of the user load.
Description
Technical field
The utility model relates to the generation technology that utilizes solar energy, relates in particular to a kind of photovoltaic off-grid electricity generation system.
Background technology
Along with mankind's industrial expansion, at global warming, human ecological environment, worsen, conventional energy resource shortage of resources causing under the situation of environmental pollution, the utilization of fossil energy constantly brings the pressure of each side to environment, solar photovoltaic technology generally obtains attention and the support of national governments.The exploitation to cleaning new energy have been accelerated in countries in the world, and solar energy cleans the features such as harmless, widely distributed because having, and is more and more subject to people's favor.Photovoltaic also becomes the focus of current distributed new generating.
Existing photovoltaic off-grid electricity generation system can normally be moved in the situation that civil power cannot be powered, and is the core of power conversion and control in system from net inverter.Its performance is not only whether the whole photovoltaic off-grid system of impact can be stablized, safe, reliable, efficient operation, is also to affect the whole system principal element in useful life simultaneously.
Summary of the invention
The utility model is in order to solve the problem of above-mentioned existence, a kind of photovoltaic off-grid electricity generation system is provided, in the circuit from net inverter, add anti-short circuit design, improve the safety and stability from net inverter, thereby assurance system can be stablized, safe, operation reliably.
The utility model adopts following technical scheme: a kind of photovoltaic off-grid electricity generation system, comprise the solar cell array that solar radiation is changed into electric energy, for direct current that the electric current of solar cell the is confluxed cabinet that confluxes, solar charging controller, batteries and from net inverter, described solar cell array is connected into the conflux input side of cabinet of direct current by circuit, described direct current conflux cabinet outlet side connect solar charging controller, described solar charging controller connects batteries, describedly from net inverter, connect respectively batteries and user's AC load, described from being connected with the micro-disconnected device of interchange between net inverter and user's AC load in turn, alternating-current lightning arrestor and electric energy meter.
Preferably, the described direct current cabinet that confluxes comprises successively the micro-disconnected device of fuse, direct current and the direct current arrester that connect.
Further, also comprise DC load, described solar charging controller connects DC load.
Further, the photovoltaic array in described solar cell array is the one in monocrystalline silicon battery, polycrystal silicon cell, amorphous silicon battery or hull cell, comprises the battery strings of 4 220W/30V is unified into a road, No. three series circuit parallel connections.
Further, described batteries comprises storage battery and the fuse of multiple series connection.
Usefulness of the present utility model is, adds anti-short circuit design in system line, improves the safety and stability of combining inverter, thereby assurance system can be stablized, safe, operation reliably, significant for the safety of protection user load.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the circuit diagram of the utility model specific embodiment;
Reference numeral:
1, solar cell array; 2, the direct current cabinet that confluxes; 21, fuse; 22, the micro-disconnected device of direct current; 23, direct current arrester; 3, solar charging controller; 31, DC load; 4, batteries; 5, from net inverter; 51, exchange micro-disconnected device; 52, alternating-current lightning arrestor; 53, electric energy meter; 6, user's AC load.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Photovoltaic off-grid electricity generation system utilizes " photovoltaic effect " principle to make, mainly by solar cell array, solar charging controller, batteries, form from net inverter four parts.First by solar cell array, change the solar radiation of absorption into direct current energy, then be stored into batteries by solar charging controller, finally by convert alternating current to from net inverter, supply with user's AC load.Daytime, while having sunshine, the electricity that solar cell array sends charged through solar charging controller accumulators group, then powers to user's AC load by converting electric energy to AC energy from net inverter.
The utility model as shown in Figure 1, 2, a kind of photovoltaic off-grid electricity generation system, comprise by solar radiation change the solar cell array 1 of electric energy into, for the direct current that the electric current of solar cell is confluxed conflux cabinet 2, solar charging controller 3, batteries 4 and from net inverter 5, solar cell array 1 is connected into the conflux input side of cabinet 2 of direct current by circuit, direct current conflux cabinet 2 outlet side connect solar charging controller 3, solar charging controller 3 connects batteries 4, from net inverter 5, connects respectively batteries 4 and user's AC load 6.From being connected with in turn between net inverter 5 and user's AC load 6, exchanging micro-disconnected device 51, alternating-current lightning arrestor 52 and electric energy meter 53; the direct current cabinet 2 that confluxes comprises successively the micro-disconnected device 22 of fuse 21, direct current and the direct current arrester 23 that connect, and these are all for system provides good anti-short-circuit protection.
Another output of solar charging controller 3 provides direct current energy, connects DC load 31, is its power supply.
Photovoltaic array in solar cell array is the one in monocrystalline silicon battery, polycrystal silicon cell, amorphous silicon battery or hull cell, comprises the battery strings of 4 220W/30V is unified into a road, No. three series circuit parallel connections.
In system line, add anti-short circuit design, improve the safety and stability from net inverter, thereby assurance system can be stablized, safe, operation reliably, significant for the safety of protection user load.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection range of the present utility model.
Claims (5)
1. a photovoltaic off-grid electricity generation system, it is characterized in that, comprise the solar cell array that solar radiation is changed into electric energy, for direct current that the electric current of solar cell the is confluxed cabinet that confluxes, solar charging controller, batteries and from net inverter, described solar cell array is connected into the conflux input side of cabinet of direct current by circuit, described direct current conflux cabinet outlet side connect solar charging controller, described solar charging controller connects batteries, describedly from net inverter, connect respectively batteries and user's AC load, described from being connected with the micro-disconnected device of interchange between net inverter and user's AC load in turn, alternating-current lightning arrestor and electric energy meter.
2. a kind of photovoltaic off-grid electricity generation system as claimed in claim 1, is characterized in that, the described direct current cabinet that confluxes comprises successively the micro-disconnected device of fuse, direct current and the direct current arrester that connect.
3. a kind of photovoltaic off-grid electricity generation system as claimed in claim 2, is characterized in that, also comprises DC load, and described solar charging controller connects DC load.
4. a kind of photovoltaic off-grid electricity generation system as claimed in claim 3, it is characterized in that, photovoltaic array in described solar cell array is the one in monocrystalline silicon battery, polycrystal silicon cell, amorphous silicon battery or hull cell, comprise the battery strings of 4 220W/30V is unified into a road, No. three series circuit parallel connections.
5. a kind of photovoltaic off-grid electricity generation system as claimed in claim 4, is characterized in that, described batteries comprises storage battery and the fuse of multiple series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818522.3U CN203590124U (en) | 2013-12-13 | 2013-12-13 | Off-grid photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818522.3U CN203590124U (en) | 2013-12-13 | 2013-12-13 | Off-grid photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590124U true CN203590124U (en) | 2014-05-07 |
Family
ID=50587971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320818522.3U Expired - Lifetime CN203590124U (en) | 2013-12-13 | 2013-12-13 | Off-grid photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590124U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453710A (en) * | 2017-09-06 | 2017-12-08 | 合肥凌山新能源科技有限公司 | A kind of monitoring system for off-network photovoltaic generating system |
| CN108075726A (en) * | 2018-01-18 | 2018-05-25 | 无锡百祺电子科技有限公司 | A kind of solar energy connector with electrical conversion function |
| CN108106054A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of net for air-source heat pump units using energy-saving defrosting device |
| CN111446737A (en) * | 2020-04-09 | 2020-07-24 | 西藏华阳供热工程服务有限公司 | Energy storage type photovoltaic off-grid power generation system for plateau and remote monitoring method |
-
2013
- 2013-12-13 CN CN201320818522.3U patent/CN203590124U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453710A (en) * | 2017-09-06 | 2017-12-08 | 合肥凌山新能源科技有限公司 | A kind of monitoring system for off-network photovoltaic generating system |
| CN108106054A (en) * | 2017-12-15 | 2018-06-01 | 大连圣鼎工业装备有限公司 | A kind of net for air-source heat pump units using energy-saving defrosting device |
| CN108075726A (en) * | 2018-01-18 | 2018-05-25 | 无锡百祺电子科技有限公司 | A kind of solar energy connector with electrical conversion function |
| CN111446737A (en) * | 2020-04-09 | 2020-07-24 | 西藏华阳供热工程服务有限公司 | Energy storage type photovoltaic off-grid power generation system for plateau and remote monitoring method |
| CN111446737B (en) * | 2020-04-09 | 2022-05-17 | 西藏华阳供热工程服务有限公司 | Energy storage type photovoltaic off-grid power generation system for plateau and remote monitoring method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |