CN203504197U - Household grid-connected photovoltaic power generation system - Google Patents
Household grid-connected photovoltaic power generation system Download PDFInfo
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- CN203504197U CN203504197U CN201320566476.2U CN201320566476U CN203504197U CN 203504197 U CN203504197 U CN 203504197U CN 201320566476 U CN201320566476 U CN 201320566476U CN 203504197 U CN203504197 U CN 203504197U
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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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Abstract
The utility model provides a household grid-connected photovoltaic power generation system. The household grid-connected photovoltaic power generation system comprises three grid connected inversion output modules, each grid connected inversion output module comprises several groups of solar panel inversion generating units in parallel, and several solar cell panels are connected in series with each other and then are connected with a photovoltaic grid-connected inverter. Each solar panel inversion generating unit is provided with a voltage and current acquisition module used for detecting the direct current through the solar cell panels which are connected in series with each other, the voltage and current acquisition modules of each group of the solar panel inversion generating units are connected with an industrial control computer, each grid connected inversion output module is connected with an external power grid through one circuit, a branch breaker is arranged in the circuit, and each branch breaker is connected to the industrial control computer. In the household grid-connected photovoltaic power generation system, the industrial control computer can control corresponding branch breakers to be switched off, one voltage and current acquisition module where an abnormity occurs can be monitored and restored, normal operation of the whole power generation system for a long time can be guaranteed, and economic benefits can be effectively maximized.
Description
Technical field
The utility model relates to a kind of photovoltaic generating system, particularly a kind of grid-connected photovoltaic system for 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 at present photovoltaic power generation technology is day by day ripe, and solar panel is more and more as the compound exploitation of the platforms such as the roof of building, exterior wall.After the issue of " 12 " photovoltaic development plan, 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.
At present the parts such as the main solar panel of photovoltaic power generation grid-connecting technology, photovoltaic combining inverter form, and 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 sometimes ammeter can be installed, but also can only add up the total energy output of solar panel, working condition specific to each group solar panel is difficult to monitor, 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 when 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 family's grid-connected photovoltaic system with monitoring function.
For achieving the above object and other relevant objects, the utility model provides a kind of family grid-connected photovoltaic system, comprise three respectively with external power grid A phase, B phase, the parallel network reverse output module that C is connected, described parallel network reverse output module 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, each electric current and voltage acquisition module of organizing solar energy electroplax inversion generator unit is all connected with an industrial computer, the circuit that each parallel network reverse output module is connected with external power grid is provided with a branch circuit breaker, described branch circuit breaker is connected with described industrial computer.
Preferably, three parallel network reverse output modules are connected with external power grid by connection bus, and described connection bus is provided with lightning arrester.
Preferably, the circuit that described connection bus is connected with described external power grid is provided with electric energy detection unit and harmonic wave detecting unit, and described electric energy detection unit, harmonic wave detecting unit are connected with described industrial computer.
Preferably, described branch circuit breaker is between described parallel network reverse output module and described connection bus, and described connection bus is provided with main breaker with the circuit that described external power grid is connected, and described main breaker is connected with described industrial computer.
As mentioned above, family of the present utility model grid-connected photovoltaic system has following beneficial effect: this family's grid-connected photovoltaic system 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 each solar energy electroplax inversion generator unit of Real-Time Monitoring by industrial computer, when there is operation irregularity in a certain electric current and voltage acquisition module, can control corresponding branch circuit breaker by industrial computer disconnects, so just can be to occurring that abnormal electric current and voltage acquisition module monitors, repair, so just can guarantee that whole electricity generation system can normally work for a long time, can effectively increase economic efficiency.
Accompanying drawing explanation
Fig. 1 is overall system view of the present utility model.
Fig. 2 is the circuit diagram of the utility model parallel network reverse output module.
Fig. 3 is the grid-connected output circuit schematic diagram of the utility model.
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 to Fig. 3.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the 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, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, 2, 3, the utility model provides a kind of family grid-connected photovoltaic system, and this family's grid-connected photovoltaic system comprises three parallel network reverse output modules that are connected with external power grid A phase, B phase, C respectively.The direct current that parallel network reverse output module sends solar panel is converted into alternating current and external power grid generates electricity by way of merging two or more grid systems.Three parallel network reverse output modules are connected with external power grid by connection bus, and 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.
As Fig. 2, shown in 3, net inversion output module comprises the solar energy electroplax inversion generator unit 1 of array parallel connection, every group of solar energy electroplax inversion generator unit 1 comprises several solar panel B, after several solar panel B series connection, be connected with photovoltaic combining inverter M, on solar energy electroplax inversion generator unit, be also provided with one for detection of galvanic electric current and voltage acquisition module VH after solar panel series connection, each electric current and voltage acquisition module VH that organizes solar energy electroplax inversion generator unit 1 is all connected with industrial computer 2, by industrial computer 2, just can detect like this working condition of each solar energy electroplax inversion generator unit 1.
On the circuit being connected with external power grid at parallel network reverse output module, be provided with branch circuit breaker QF1, branch circuit breaker QF1 is between parallel network reverse output module and connection bus, the circuit that connection bus is connected with external power grid is provided with main breaker QF2, and branch circuit breaker QF1, main breaker QF2 are connected with industrial computer 2.The circuit that connection bus is connected with external power grid is provided with electric energy detection unit and harmonic wave detecting unit, as this electric energy detection unit of embodiment of the present utility model, harmonic wave detecting unit, be an integrated multifunctional electric energy meter harmonic meter FU, multifunctional electric energy meter harmonic meter FU is also connected with industrial computer 2.Industrial computer 2 can also be connected with background server by communication interface.
For the ease of showing control machine centralized monitor, in industrial computer, can adopt special-purpose configuration software that dynamic operation process module, solar energy real-time monitoring module, solar recharging monitoring module, controller for solar monitoring module, solar energy inversion output module are set, so just can show dynamic operation flow chart, the real-time monitored picture of solar energy, solar recharging monitored picture, controller for solar monitored picture, solar energy inversion output picture etc., thereby more be convenient to monitoring.
This family's grid-connected photovoltaic system 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 each solar energy electroplax inversion generator unit of Real-Time Monitoring by industrial computer, when there is operation irregularity in a certain electric current and voltage acquisition module, can control corresponding branch circuit breaker by industrial computer disconnects, when energy output or circuit harmonizing wave go wrong, can control main breaker by industrial computer disconnects, so just can be to occurring that abnormal electric current and voltage acquisition module monitors, repair, so just can guarantee 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 (4)
1.Yi Zhong family grid-connected photovoltaic system, comprise three respectively with external power grid A phase, B phase, the parallel network reverse output module that C is connected, it is characterized in that: described parallel network reverse output module 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, each electric current and voltage acquisition module of organizing solar energy electroplax inversion generator unit is all connected with an industrial computer, the circuit that each parallel network reverse output module is connected with external power grid is provided with a branch circuit breaker, described branch circuit breaker is connected with described industrial computer.
2. family according to claim 1 grid-connected photovoltaic system, is characterized in that: three parallel network reverse output modules are connected with external power grid by connection bus, and described connection bus is provided with lightning arrester.
3. family according to claim 2 grid-connected photovoltaic system, it is characterized in that: the circuit that described connection bus is connected with described external power grid is provided with electric energy detection unit and harmonic wave detecting unit, described electric energy detection unit, harmonic wave detecting unit are connected with described industrial computer.
4. family according to claim 2 grid-connected photovoltaic system, it is characterized in that: described branch circuit breaker is between described parallel network reverse output module and described connection bus, described connection bus is provided with main breaker with the circuit that described external power grid is connected, and described main breaker is connected with described industrial computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566476.2U CN203504197U (en) | 2013-09-12 | 2013-09-12 | Household grid-connected photovoltaic power generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320566476.2U CN203504197U (en) | 2013-09-12 | 2013-09-12 | Household grid-connected photovoltaic power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN203504197U true CN203504197U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320566476.2U Expired - Fee Related CN203504197U (en) | 2013-09-12 | 2013-09-12 | Household grid-connected photovoltaic power generation system |
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| CN (1) | CN203504197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795078A (en) * | 2013-09-12 | 2014-05-14 | 苏州市龙源电力科技股份有限公司 | Household photovoltaic grid-connected power generation system |
| CN110649887A (en) * | 2019-09-02 | 2020-01-03 | 徐州亿通光电有限公司 | Photovoltaic power generation management method |
-
2013
- 2013-09-12 CN CN201320566476.2U patent/CN203504197U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795078A (en) * | 2013-09-12 | 2014-05-14 | 苏州市龙源电力科技股份有限公司 | Household photovoltaic grid-connected power generation system |
| CN110649887A (en) * | 2019-09-02 | 2020-01-03 | 徐州亿通光电有限公司 | Photovoltaic power generation management method |
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Granted publication date: 20140326 Termination date: 20200912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |