CN203645342U - Grid-connected inversion output circuit - Google Patents
Grid-connected inversion output circuit Download PDFInfo
- Publication number
- CN203645342U CN203645342U CN201320566280.3U CN201320566280U CN203645342U CN 203645342 U CN203645342 U CN 203645342U CN 201320566280 U CN201320566280 U CN 201320566280U CN 203645342 U CN203645342 U CN 203645342U
- Authority
- CN
- China
- Prior art keywords
- output circuit
- solar panel
- reverse output
- generator unit
- grid
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model provides a grid-connected inversion output circuit which includes plurality of sets of parallelly connected solar panel inversion generating units. The solar panel inversion generating units include a plurality of solar panels. Multiple solar panels are connected in series and then are connected to a photovoltaic grid-connected inverter. The solar panel inversion generating units are also provided with multiple voltage and current acquisition modules. The voltage and current acquisition modules of the solar panel inversion generating units are connected to an industrial personal computer. A breaker is disposed between a grid-connected inversion output circuit and a connective bus and is connected to the industrial personal computer. By employing the industrial personal computer disposed in the circuit, the working state of every solar panel inversion generating unit can be monitored in real time. When one of the voltage and current acquisition modules is in abnormity, the corresponding breaker can be disconnected under the control of the industrial personal computer in order that the voltage and current acquisition modules in abnormity can be monitored and repaired; and thereby the whole power generation system can be ensured to work normally in a long time, and the economic benefit is raised effectively.
Description
Technical field
The utility model relates to a kind of photovoltaic generating system, particularly a kind of parallel network reverse output circuit of the grid-connected photovoltaic system that is used in family.
Background technology
Along with the day by day exhaustion of ecological deterioration and the energy, solar energy is more and more subject to people's attention as a kind of new forms of energy, and has obtained application very widely.Photovoltaic generation is exactly a kind ofly utilize the photovoltaic effect of interface and luminous energy directly changed into the technology of electric energy.The key element of photovoltaic power generation technology is solar cell, and photovoltaic power generation technology is day by day ripe at present, and solar panel is more and more as the compound exploitation of the platform such as roof, exterior wall of building.After " 12 " photovoltaic development plan is issued, national grid starts distributed photovoltaic power generation support policy.Since on November 1st, 2012, user is no more than the photovoltaic generation project of 6 megawatts can be directly in local grid company application, and can complete to build to realize 45 working days is incorporated into the power networks, and greatly develops China's solar energy cause.
The at present parts composition such as the main solar panel of photovoltaic power generation grid-connecting technology, photovoltaic combining inverter, the direct current that solar panel sends becomes after alternating current grid-connected with external power grid by photovoltaic combining inverter.Adopt this mode of generating electricity by way of merging two or more grid systems to be difficult to the generating situation of solar panel to monitor, although ammeter can be installed sometimes, but also can only add up the total energy output of solar panel, to being difficult to monitor specific to the working condition of each group solar panel, particularly in family's power generation process, owing to lacking professional, people are difficult to understand the working condition of every group of solar panel, even in the time that going wrong, solar panel can not find in time, so just likely the electricity generation system of whole family photovoltaic is impacted, even can damage equipment when serious, cause unnecessary economic loss.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of parallel network reverse output circuit with monitoring function.
For achieving the above object and other relevant objects, the utility model provides a kind of parallel network reverse output circuit, this parallel network reverse output circuit is connected with external power grid by connection bus, this parallel network reverse output circuit comprises the solar energy electroplax inversion generator unit of array parallel connection, described solar energy electroplax inversion generator unit comprises several solar panels, after several solar panel series connection, be connected with photovoltaic combining inverter, on described solar energy electroplax inversion generator unit, be also provided with one for detection of galvanic electric current and voltage acquisition module after solar panel series connection, the electric current and voltage acquisition module of each group solar energy electroplax inversion generator unit is all connected with an industrial computer, between this parallel network reverse output circuit and connection bus, be provided with a circuit breaker, described circuit breaker is connected with described industrial computer.
Preferably, described connection bus is provided with lightning arrester.
Preferably, described solar energy electroplax inversion generator unit comprises two solar panels.
As mentioned above, parallel network reverse output circuit of the present utility model has following beneficial effect: this parallel network reverse output circuit arranges electric current and voltage acquisition module in each solar energy electroplax inversion generator unit, and each electric current and voltage acquisition module is all connected with industrial computer, working condition that so just can the each solar energy electroplax of Real-Time Monitoring inversion generator unit by industrial computer, in the time there is operation irregularity in a certain electric current and voltage acquisition module, can disconnect by the corresponding circuit breaker of industrial computer control, so just can be to occurring that abnormal electric current and voltage acquisition module monitors, repair, so just can ensure that whole electricity generation system can normally work for a long time, can effectively increase economic efficiency.
Brief description of the drawings
Fig. 1 is the circuit diagram of the utility model embodiment.
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to Fig. 1.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., all contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
As shown in Figure 1, as an embodiment of this patent, this parallel network reverse output circuit comprises the solar energy electroplax inversion generator unit 1 of array parallel connection, every group of solar energy electroplax inversion generator unit 1 comprises two solar panel B, after two solar panel B series connection, be connected with photovoltaic combining inverter M, on solar energy electroplax inversion generator unit 1, be also provided with one for detection of galvanic electric current and voltage acquisition module VH after solar panel series connection, the electric current and voltage acquisition module VH of each group solar energy electroplax inversion generator unit 1 is all connected with industrial computer, just can detect like this working condition of each solar energy electroplax inversion generator unit 1 by industrial computer.
This parallel network reverse output circuit is connected with external power grid by connection bus, on the circuit being connected with external power grid at parallel network reverse output circuit, be provided with circuit breaker Q F1, circuit breaker Q F1 is between parallel network reverse output circuit and connection bus, and circuit breaker Q F1 is connected with industrial computer.Connection bus is provided with lightning arrester FS, can make like this circuit more safe, can prevent from making because thundering the electrical equipment in electrical network to damage.
This parallel network reverse output circuit arranges electric current and voltage acquisition module in each solar energy electroplax inversion generator unit, and each electric current and voltage acquisition module is all connected with industrial computer, working condition that so just can the each solar energy electroplax of Real-Time Monitoring inversion generator unit by industrial computer, in the time there is operation irregularity in a certain electric current and voltage acquisition module, can disconnect by the corresponding circuit breaker of industrial computer control, so just can be to occurring that abnormal electric current and voltage acquisition module monitors, repair, so just can ensure that whole electricity generation system can normally work for a long time, can effectively increase economic efficiency.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (3)
1. a parallel network reverse output circuit, this parallel network reverse output circuit is connected with external power grid by connection bus, it is characterized in that: this parallel network reverse output circuit comprises the solar energy electroplax inversion generator unit of array parallel connection, described solar energy electroplax inversion generator unit comprises several solar panels, after several solar panel series connection, be connected with photovoltaic combining inverter, on described solar energy electroplax inversion generator unit, be also provided with one for detection of galvanic electric current and voltage acquisition module after solar panel series connection, the electric current and voltage acquisition module of each group solar energy electroplax inversion generator unit is all connected with an industrial computer, between this parallel network reverse output circuit and connection bus, be provided with a circuit breaker, described circuit breaker is connected with described industrial computer.
2. parallel network reverse output circuit according to claim 1, is characterized in that: described connection bus is provided with lightning arrester.
3. parallel network reverse output circuit according to claim 2, is characterized in that: described solar energy electroplax inversion generator unit comprises two solar panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566280.3U CN203645342U (en) | 2013-09-12 | 2013-09-12 | Grid-connected inversion output circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566280.3U CN203645342U (en) | 2013-09-12 | 2013-09-12 | Grid-connected inversion output circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645342U true CN203645342U (en) | 2014-06-11 |
Family
ID=50876563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320566280.3U Expired - Fee Related CN203645342U (en) | 2013-09-12 | 2013-09-12 | Grid-connected inversion output circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645342U (en) |
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2013
- 2013-09-12 CN CN201320566280.3U patent/CN203645342U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140611 Termination date: 20200912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |