CN103795078A - Household photovoltaic grid-connected power generation system - Google Patents
Household photovoltaic grid-connected power generation system Download PDFInfo
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- CN103795078A CN103795078A CN201310414802.2A CN201310414802A CN103795078A CN 103795078 A CN103795078 A CN 103795078A CN 201310414802 A CN201310414802 A CN 201310414802A CN 103795078 A CN103795078 A CN 103795078A
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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
Abstract
The invention provides a household photovoltaic grid-connected power generation system comprising three grid-connected inversion output modules. The grid-connected inversion output modules include a plurality of groups of solar panel inverter power generation units in parallel connection; and a plurality of solar cell panels are connected in series and then are connected with a photovoltaic grid-connected inverter. Besides, the solar panel inverter power generation units are also provided with voltage-current acquisition modules for detecting direct currents after the solar cell panel series connection; and the voltage-current acquisition modules of all groups of solar panel inverter power generation units are connected with an industrial personnel computer. A branch circuit breaker is arranged at the circuit of connection between each grid-connected inversion output module and an external power grid; and the branch circuit breakers are connected with the industrial personnel computer. According to the household photovoltaic grid-connected power generation system, the corresponding branch circuit breakers can be controlled to be turned on or off by the industrial personnel computer and thus the voltage-current acquisition modules with abnormal situations can be monitored and repaired, thereby ensuring the long-time normal working of the whole power generation system and effectively improving the economic benefits.
Description
Technical field
The present invention 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 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.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention 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 invention 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, the electric current and voltage acquisition module of each group 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.
Preferably, in described industrial computer, be provided with dynamic operation process module, solar energy real-time monitoring module, solar recharging monitoring module, controller for solar monitoring module, solar energy inversion output module.
As mentioned above, family of the present invention 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 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 branch 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 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 invention.
Fig. 2 is the circuit diagram of parallel network reverse output module of the present invention.
Fig. 3 is the grid-connected output circuit schematic diagram of the present invention.
Embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification below.
Refer to Fig. 1 to Fig. 3.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 present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents 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 present invention, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the present invention without essence.
As shown in Figure 1, 2, 3, the invention provides a kind of family grid-connected photovoltaic system, 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, the electric current and voltage acquisition module VH of each group solar energy electroplax inversion generator unit 1 is all connected with industrial computer 2, just can detect like this working condition of each solar energy electroplax inversion generator unit 1 by industrial computer 2.
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, be an integrated multifunctional electric energy meter harmonic meter FU as this electric energy detection unit of embodiments of the invention, harmonic wave detecting unit, 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 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 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 branch circuit breaker of industrial computer control, in the time that going wrong, energy output or circuit harmonizing wave can disconnect by industrial computer control main breaker, 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 present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (5)
1. family's 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, the electric current and voltage acquisition module of each group 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.
5. family according to claim 1 grid-connected photovoltaic system, is characterized in that: in described industrial computer, be provided with dynamic operation process module, solar energy real-time monitoring module, solar recharging monitoring module, controller for solar monitoring module, solar energy inversion output module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310414802.2A CN103795078A (en) | 2013-09-12 | 2013-09-12 | Household photovoltaic grid-connected power generation system |
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| CN201310414802.2A CN103795078A (en) | 2013-09-12 | 2013-09-12 | Household photovoltaic grid-connected power generation system |
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| CN201310414802.2A Pending CN103795078A (en) | 2013-09-12 | 2013-09-12 | Household photovoltaic grid-connected power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245013A (en) * | 2015-11-11 | 2016-01-13 | 南车株洲电力机车有限公司 | High-voltage power supply monitoring system of railway vehicle debugging workshop |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777769A (en) * | 2010-03-24 | 2010-07-14 | 上海交通大学 | Multi-agent optimized coordination control method of electric network |
| CN102055202A (en) * | 2011-01-21 | 2011-05-11 | 浙江浙大网新能源技术有限公司 | Three-phase balancing power-supply energy-saving control management system |
| CN102361328A (en) * | 2011-10-25 | 2012-02-22 | 中国科学技术大学 | Wind and light complement distributed micro-grid system for comprehensively utilizing commercial power |
| CN102545261A (en) * | 2012-01-16 | 2012-07-04 | 沈阳工程学院 | Micro-grid experiment system |
| US20130015710A1 (en) * | 2007-05-17 | 2013-01-17 | Enphase Energy, Inc. | Distributed inverter and intelligent gateway |
| CN202772601U (en) * | 2012-09-03 | 2013-03-06 | 深圳市汇川技术股份有限公司 | Photovoltaic grid-connected inverter and photovoltaic power generation system |
| CN203504197U (en) * | 2013-09-12 | 2014-03-26 | 苏州市龙源电力科技股份有限公司 | Household grid-connected photovoltaic power generation system |
-
2013
- 2013-09-12 CN CN201310414802.2A patent/CN103795078A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130015710A1 (en) * | 2007-05-17 | 2013-01-17 | Enphase Energy, Inc. | Distributed inverter and intelligent gateway |
| CN101777769A (en) * | 2010-03-24 | 2010-07-14 | 上海交通大学 | Multi-agent optimized coordination control method of electric network |
| CN102055202A (en) * | 2011-01-21 | 2011-05-11 | 浙江浙大网新能源技术有限公司 | Three-phase balancing power-supply energy-saving control management system |
| CN102361328A (en) * | 2011-10-25 | 2012-02-22 | 中国科学技术大学 | Wind and light complement distributed micro-grid system for comprehensively utilizing commercial power |
| CN102545261A (en) * | 2012-01-16 | 2012-07-04 | 沈阳工程学院 | Micro-grid experiment system |
| CN202772601U (en) * | 2012-09-03 | 2013-03-06 | 深圳市汇川技术股份有限公司 | Photovoltaic grid-connected inverter and photovoltaic power generation system |
| CN203504197U (en) * | 2013-09-12 | 2014-03-26 | 苏州市龙源电力科技股份有限公司 | Household grid-connected photovoltaic power generation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245013A (en) * | 2015-11-11 | 2016-01-13 | 南车株洲电力机车有限公司 | High-voltage power supply monitoring system of railway vehicle debugging workshop |
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Application publication date: 20140514 |