CN204794128U - Intelligent domestic grid -connected PV power generation system - Google Patents
Intelligent domestic grid -connected PV power generation system Download PDFInfo
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- CN204794128U CN204794128U CN201520487719.2U CN201520487719U CN204794128U CN 204794128 U CN204794128 U CN 204794128U CN 201520487719 U CN201520487719 U CN 201520487719U CN 204794128 U CN204794128 U CN 204794128U
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- Prior art keywords
- module
- resistance
- grid
- switch
- distribution cabinet
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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 utility model provides an intelligent domestic grid -connected PV power generation system, it is main including solar PV modules, the DC distribution cabinet, the photovoltaic inverter switch board, the switch is incorporated into the power networks, DC distribution cabinet input is connected to the solar PV modules output, photovoltaic inverter switch board input is connected to DC distribution cabinet output, the switch that is incorporated into the power networks is connected to photovoltaic inverter switch board output, the remote monitoring center is connected through ethernet switch respectively with the switch that is incorporated into the power networks to the DC distribution cabinet, the photovoltaic inverter switch board is the connect protection device still, the utility model discloses simple structure, intelligent degree are high, adopt protection device, can the normal operating of real -time guard dc -to -ac converter, and the remote monitoring center can real time monitoring grid -connected PV power generation system running state, ensures household power consumption safety, is applicable to the family and uses.
Description
technical field:
The utility model relates to field of photovoltaic power generation, particularly relates to a kind of intelligent domestic grid-connected photovoltaic system.
background technology:
Traditional energy has non-renewable, face exhaustion, can the harm such as waste gas be produced simultaneously, advocate today of low-carbon (LC) life, solar energy is as a kind of new forms of energy, and it has three large features compared with conventional energy resource: first: it is the mankind's the abundantest utilizable energy.According to estimates, in the years very long in the past, the sun consumes itself sub-fraction energy.Being enough to the supply earth mankind from now on and using tens years, is really inexhaustible.Second: on the earth, anywhere there is solar energy, can develop on the spot, there is not transportation problem, especially the underdeveloped rural area of traffic, island and outlying district are had more to the value of utilization.3rd: solar energy is a kind of energy of cleaning.When developing, waste residue, waste water, waste gas can not be produced, also there is no noise, more can not affect the ecological balance, can never pollute and public hazards.Existing solar energy grid-connected photovoltaic system investment is large, cost is high, is not suitable for family and uses.
utility model content:
In order to solve the problem; the utility model provides that a kind of structure is simple, intelligence degree is high, can normally run by real-time guard inverter, simultaneously can monitor optical photovoltaic grid-connected system running status in real time; guarantee household electricity safety, be applicable to the technical scheme that family uses:
A kind of intelligent domestic grid-connected photovoltaic system; mainly comprise solar photovoltaic assembly, DC power distribution cabinet, solar inverter control cubicle, grid-connected switch; solar photovoltaic assembly output connects DC power distribution cabinet input; DC power distribution cabinet output connects solar inverter control cubicle input; solar inverter control cubicle output connects grid-connected switch; DC power distribution cabinet is connected remote monitoring center with grid-connected switch respectively by Ethernet switch, and solar inverter control cubicle also connects protective device.
As preferably, solar inverter control cubicle is provided with display screen, solar inverter control cubicle inside is provided with MCU module, data acquisition module, inverter module, clock module, communication module, display module, output module, MCU module is connection data acquisition module, inverter module, clock module, communication module, display module, output module respectively, and communication module connects Ethernet switch.
As preferably, grid-connected switch access electrical network, electrical network output connects family's inlet wire air switch, and family's inlet wire air switch is electrically connected household electricity equipment.
As preferably; protective device mainly comprises overvoltage detecting unit, under-voltage detecting unit, output unit, and overvoltage detecting unit comprises triode A, resistance E, resistance F, triode A collector electrode contact resistance E and resistance F tie point; resistance E other end access power end, resistance F other end ground connection.
As preferably, under-voltage detecting unit mainly comprises triode B, resistance G, resistance H, triode B collector electrode contact resistance G and resistance H tie point, resistance G other end access power end, resistance H other end ground connection.
The beneficial effects of the utility model are:
(1) protective device that the utility model adopts has overvoltage detection and undervoltage detection circuit, can detect the running status of inverter in real time, guarantee that inverter normally runs.
(2) the utility model intelligence degree is high, connects remote monitoring center by Ethernet switch, and remote monitoring center can monitor optical photovoltaic grid-connected system running status in real time, guarantees household electricity safety.
accompanying drawing illustrates:
Fig. 1 is Integral connection structure figure of the present utility model;
Fig. 2 is solar inverter control cubicle internal module johning knot composition of the present utility model;
Fig. 3 is protective device schematic diagram of the present utility model.
embodiment:
For making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, execution mode of the present utility model is described in further detail.
As shown in Figure 1-2, a kind of intelligent domestic grid-connected photovoltaic system, mainly comprise solar photovoltaic assembly 1, DC power distribution cabinet 2, solar inverter control cubicle 3, grid-connected switch 4, solar photovoltaic assembly 1 output connects DC power distribution cabinet 2 input, DC power distribution cabinet 2 output connects solar inverter control cubicle 3 input, solar inverter control cubicle 3 output connects grid-connected switch 4, DC power distribution cabinet 2 is connected remote monitoring center 6 with grid-connected switch 4 respectively by Ethernet switch 5, grid-connected switch 4 accesses electrical network 8, electrical network 8 output connects family's inlet wire air switch 9, family's inlet wire air switch 9 is electrically connected household electricity equipment 10.
Solar inverter control cubicle 3 also connects protective device 7; solar inverter control cubicle 3 is provided with display screen; solar inverter control cubicle 3 inside is provided with MCU module 31, data acquisition module 32, inverter module 33, clock module 34, communication module 35, display module 36, output module 37; MCU module 31 is connection data acquisition module 32, inverter module 33, clock module 34, communication module 35, display module 36, output module 37 respectively, and communication module 35 connects Ethernet switch 5.The utility model intelligence degree is high, connects remote monitoring center by Ethernet switch, and remote monitoring center can monitor optical photovoltaic grid-connected system running status in real time, guarantees household electricity safety.
As shown in Figure 3, protective device 7 mainly comprises overvoltage detecting unit 71, under-voltage detecting unit 72, output unit 73, overvoltage detecting unit 71 comprises triode A1b, resistance E5a, resistance F6a, triode A1b collector electrode contact resistance E5a and resistance F6a tie point, resistance E5a other end access power end, resistance F6a other end ground connection, under-voltage detecting unit 72 mainly comprises triode B2b, resistance G7a, resistance H8a, triode B2b collector electrode contact resistance G7a and resistance H8a tie point, resistance G7a other end access power end, resistance H8a other end ground connection, output unit comprises resistance I9a, field-effect transistor 1c, resistance I9a one end connecting triode A1b emitter, the other end connects field-effect transistor 1c grid, field-effect transistor 1c grounded drain, source class accesses power end by resistance J10a, source class also connects logic gates 1d, the base stage contact resistance C3a of triode A1b and triode B2b and resistance D4a tie point, resistance D4a is connected in series resistance C3a, resistance B2a, resistance A1a, the resistance A1a other end connects alternating current pressure side, resistance D4a other end ground connection.When inverter direct current input cathode voltage is too high, triode 1b conducting, triode 2b ends, field-effect transistor 1c conducting, logic gates 1d exports as low level, close drive singal, inverter transfers overvoltage protection state to by normal operating conditions, when inverter direct current input cathode voltage is too low, triode 1b ends, triode 2b conducting, field-effect transistor 1c conducting, field-effect transistor 1c source output voltage is low level, logic gates 1d exports as low level, close drive singal, inverter transfers under-voltage protection state to by normal operating conditions.The protective device that the utility model adopts has overvoltage detection and undervoltage detection circuit, can detect the running status of inverter in real time, guarantee that inverter normally runs.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (5)
1. an intelligent domestic grid-connected photovoltaic system, it is characterized in that: mainly comprise solar photovoltaic assembly (1), DC power distribution cabinet (2), solar inverter control cubicle (3), grid-connected switch (4), described solar photovoltaic assembly (1) output connects described DC power distribution cabinet (2) input, described DC power distribution cabinet (2) output connects described solar inverter control cubicle (3) input, described solar inverter control cubicle (3) output connects described grid-connected switch (4), described DC power distribution cabinet (2) is connected remote monitoring center (6) with described grid-connected switch (4) respectively by Ethernet switch (5), described solar inverter control cubicle (3) also connects protective device (7).
2. a kind of intelligent domestic grid-connected photovoltaic system according to claim 1, it is characterized in that: described solar inverter control cubicle (3) is provided with display screen, described solar inverter control cubicle (3) inside is provided with MCU module (31), data acquisition module (32), inverter module (33), clock module (34), communication module (35), display module (36), output module (37), described MCU module (31) connects described data acquisition module (32) respectively, described inverter module (33), described clock module (34), described communication module (35), described display module (36), described output module (37), described communication module (35) connects described Ethernet switch (5).
3. a kind of intelligent domestic grid-connected photovoltaic system according to claim 1, it is characterized in that: described grid-connected switch (4) access electrical network (8), described electrical network (8) output connects family's inlet wire air switch (9), and described family's inlet wire air switch (9) is electrically connected household electricity equipment (10).
4. a kind of intelligent domestic grid-connected photovoltaic system according to claim 1; it is characterized in that: described protective device (7) mainly comprises overvoltage detecting unit (71), under-voltage detecting unit (72), output unit (73); described overvoltage detecting unit (71) comprises triode A(1b), resistance E(5a), resistance F(6a), triode A(1b) collector electrode contact resistance.
5. a kind of intelligent domestic grid-connected photovoltaic system according to claim 4, it is characterized in that: described under-voltage detecting unit (72) mainly comprises triode B(2b), resistance G(7a), resistance H(8a), triode B(2b) collector electrode contact resistance G(7a) and resistance H(8a) tie point, resistance G(7a) other end access power end, resistance H(8a) other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487719.2U CN204794128U (en) | 2015-07-08 | 2015-07-08 | Intelligent domestic grid -connected PV power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520487719.2U CN204794128U (en) | 2015-07-08 | 2015-07-08 | Intelligent domestic grid -connected PV power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN204794128U true CN204794128U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520487719.2U Expired - Fee Related CN204794128U (en) | 2015-07-08 | 2015-07-08 | Intelligent domestic grid -connected PV power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089076A (en) * | 2017-11-23 | 2018-05-29 | 国网山东省电力公司滨州市滨城区供电公司 | A kind of distributed photovoltaic power generation information inquiry terminal |
-
2015
- 2015-07-08 CN CN201520487719.2U patent/CN204794128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089076A (en) * | 2017-11-23 | 2018-05-29 | 国网山东省电力公司滨州市滨城区供电公司 | A kind of distributed photovoltaic power generation information inquiry terminal |
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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: 20151118 Termination date: 20170708 |