CN210111622U - Grid-connected photovoltaic power generation system - Google Patents
Grid-connected photovoltaic power generation system Download PDFInfo
- Publication number
- CN210111622U CN210111622U CN201921022971.0U CN201921022971U CN210111622U CN 210111622 U CN210111622 U CN 210111622U CN 201921022971 U CN201921022971 U CN 201921022971U CN 210111622 U CN210111622 U CN 210111622U
- Authority
- CN
- China
- Prior art keywords
- grid
- power generation
- controller
- generation system
- direct current
- 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.)
- Active
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 20
- 238000005286 illumination Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a grid-connected type photovoltaic power generation system includes the solar photovoltaic cell array, and grid-connected type photovoltaic power generation system still includes the direct current distributor, and the controller, the dc-to-ac converter, the alternating current distributor, real-time control ware, the solar photovoltaic cell array, direct current distributor and controller connect gradually, and the controller still is connected with direct current load and dc-to-ac converter respectively, and the dc-to-ac converter is connected with the alternating current distributor, and the alternating current distributor is connected with the alternating current load, and the dc-to-ac converter still is connected with big electric wire netting through real-time control ware. The utility model discloses can use the photovoltaic cell electric energy as much as possible to give big electric wire netting power supply, improve energy utilization efficiency.
Description
Technical Field
The utility model relates to a photovoltaic power generation technology and application technical field thereof, more specifically relates to a grid-connected photovoltaic power generation system.
Background
At present, in areas with better illumination conditions, a photovoltaic grid-connected power generation system is used in size, namely, the solar photovoltaic power generation system is matched with a conventional power grid to realize networking cooperative power supply. In sunny days, the inverter inverts direct current generated by the photovoltaic cell into sine alternating current, the generated alternating current can directly supply power to an alternating current load, and simultaneously the rest electric energy is input into a large power grid or can be directly merged into the power grid; in rainy days and nights, the electricity of the load can be completely supplied by the power grid.
Due to the inherent characteristics of randomness, intermittence and fluctuation of solar power generation, coordination and coordination are needed after the solar power generation is connected into a power grid, and the safe and stable operation of the power grid is ensured. How to reasonably adjust the use of direct current and alternating current according to the power demand and environmental conditions and more efficiently utilize solar energy is a problem which needs to be solved urgently in the prior art.
SUMMERY OF THE UTILITY MODEL
To the deficiencies in the prior art, the utility model provides a
The utility model discloses a following technical scheme realizes.
The utility model provides a grid-connected photovoltaic power generation system, includes the solar photovoltaic cell array, grid-connected photovoltaic power generation system still includes direct current distributor, controller, dc-to-ac converter, alternating current distributor, real-time control ware, the solar photovoltaic cell array direct current distributor with the controller connects gradually, the controller still respectively with direct current load with the dc-to-ac converter is connected, the dc-to-ac converter is connected with alternating current distributor, alternating current distributor is connected with alternating current load, the dc-to-ac converter still is connected with big electric wire netting through real-time control ware.
And the solar photovoltaic cell array is provided with an illumination intensity sensor.
The controller is also connected with an ambient temperature sensor.
The controller is also connected with a storage battery.
Compared with the prior art, the utility model beneficial effect be: the light intensity sensor and the temperature sensor are used for monitoring the illumination and temperature conditions in real time, and the supply of direct current and alternating current is reasonably adjusted according to needs, so that the photovoltaic cell electric energy serving as clean energy is used as much as possible on the basis of meeting the electric energy quality requirement of a large power grid during grid connection, and the energy utilization efficiency of a grid-connected power generation system is improved.
Drawings
Fig. 1 is a grid-connected photovoltaic power generation system.
Reference numerals: the system comprises a solar photovoltaic cell array, a direct current distributor, a controller, a storage battery, a direct current load, an inverter, a 7 alternating current distributor, a real-time controller, a 9 large power grid, an alternating current load, an 11 illumination intensity sensor and an environment temperature sensor, wherein the solar photovoltaic cell array is arranged at 1 part, the direct current distributor is arranged at 2 part, the controller is arranged at 3 part, the storage battery is arranged at 4 part, the direct current load is arranged at 5 part, the inverter is arranged at 7.
Detailed Description
The present invention will be further explained with reference to the following examples.
The grid-connected photovoltaic power generation system shown in fig. 1 comprises a solar photovoltaic cell array 1, wherein an illumination intensity sensor 11 is arranged on the solar photovoltaic cell array 1, the grid-connected photovoltaic power generation system further comprises a direct current distributor 2, a controller 3, an inverter 6, an alternating current distributor 7 and a real-time controller 8, the solar photovoltaic cell array 1, the direct current distributor 2 and the controller 3 are sequentially connected, the controller 3 is further respectively connected with a storage battery 4, a direct current load 5, the inverter 6 and an environment temperature sensor 12, the inverter 6 is connected with the alternating current distributor 7, the alternating current distributor 7 is connected with an alternating current load 10, and the inverter 6 is further connected with a large power grid 9 through the real-time controller 8.
The working principle of the utility model is as follows: direct current generated by the solar photovoltaic cell array 1 enters the controller 3 through the direct current distributor 2. The direct current is converted into alternating current through an inverter 6 and then enters an alternating current distributor 7; part of direct current can be directly supplied to a direct current load for power utilization, and when the illumination intensity measured by the illumination intensity sensor 11 is higher than 60000lx or the environmental temperature measured by the environmental temperature sensor 12 is higher than 38 ℃, the controller 3 is connected with the storage battery 4, and the electric energy is stored in the storage battery 4. The ac power entering the ac distributor 7 is supplied to the large grid 9 via the real-time controller 8 according to the power demand, and is supplied. When the weather is rainy, the electric energy in the storage battery 4 can be used by the direct current load 5 through the controller 3, and can also be changed into alternating current through the inverter 6 to be used by the large power grid 9 and the alternating current load 10.
The above description is only the preferred embodiment of the present invention, but the present invention is not limited to the above-mentioned specific embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a grid-connected photovoltaic power generation system, includes solar photovoltaic cell array (1), characterized by, grid-connected photovoltaic power generation system still includes direct current distributor (2), controller (3), inverter (6), exchanges distributor (7), real time control ware (8), solar photovoltaic cell array (1) direct current distributor (2) with controller (3) connect gradually, controller (3) still respectively with direct current load (5) with inverter (6) are connected, inverter (6) are connected with exchanging distributor (7), exchange distributor (7) and exchange load (10) and be connected, inverter (6) still are connected with big electric wire netting (9) through real time control ware (8).
2. The grid-connected photovoltaic power generation system according to claim 1, wherein the solar photovoltaic cell array (1) is further connected with an illumination intensity sensor (11).
3. Grid-connected photovoltaic power generation system according to claim 1, characterized in that the controller (3) is further connected with an ambient temperature sensor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022971.0U CN210111622U (en) | 2019-07-03 | 2019-07-03 | Grid-connected photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022971.0U CN210111622U (en) | 2019-07-03 | 2019-07-03 | Grid-connected photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210111622U true CN210111622U (en) | 2020-02-21 |
Family
ID=69567888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022971.0U Active CN210111622U (en) | 2019-07-03 | 2019-07-03 | Grid-connected photovoltaic power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210111622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233502A (en) * | 2019-07-03 | 2019-09-13 | 天津理工大学 | A kind of parallel networking type photovoltaic electricity generation system |
-
2019
- 2019-07-03 CN CN201921022971.0U patent/CN210111622U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233502A (en) * | 2019-07-03 | 2019-09-13 | 天津理工大学 | A kind of parallel networking type photovoltaic electricity generation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201194333Y (en) | Solar photovoltaic parallel-in system | |
| CN103547043B (en) | A kind of centralized direct-current micro-grid electric power system of LED and method for controlling power supply | |
| CN102624288A (en) | AC (Alternating Current) solar energy module and electrical energy dispatching method | |
| CN209731138U (en) | A kind of energy-storage system of photovoltaic power generation | |
| CN105048505B (en) | A kind of wind-solar complementary type micro-grid system for intelligent residential district | |
| CN210111622U (en) | Grid-connected photovoltaic power generation system | |
| CN201210624Y (en) | Solar charging and discharging circuit device | |
| CN205754214U (en) | A kind of solar electrical energy generation cabinet | |
| CN203574588U (en) | Household modular wind-solar complementary energy storage system | |
| CN203596618U (en) | Cabinet-type DC power supply system | |
| CN102457068A (en) | Solar photovoltaic grid-connected system based on packet MPPT control | |
| CN205783877U (en) | A kind of solar electrical energy generation heating system | |
| CN205453155U (en) | Distributed optimizing system that is incorporated into power networks that generates electricity based on smart power grids | |
| CN103452338A (en) | Solar shading rest pavilion | |
| CN205811640U (en) | A kind of wind-solar hybrid control system powered to air-conditioning | |
| CN108134561A (en) | A kind of dispersion solar energy acquisition and solar energy transferring system associating power supply system | |
| CN202559781U (en) | Solar shading and resting pavilion | |
| CN211018286U (en) | Intelligent high-efficiency power distribution gain device for photovoltaic power station | |
| CN210579330U (en) | Solar energy frequency conversion fan lamp control system | |
| CN210093171U (en) | Off-grid photovoltaic energy storage power frequency inverter | |
| CN203632914U (en) | LED centralized direct-current micro-grid power supply system | |
| CN208638037U (en) | One kind having solar energy/wind energy complementary power generation and storage system | |
| CN205864322U (en) | Solar energy sewage disposal device | |
| CN204741437U (en) | Photovoltaic power generation roof | |
| CN205264721U (en) | Spotlight solar cell's front grid line structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TIANJIN DETONG ELECTRIC Co.,Ltd. Assignor: TIANJIN University OF TECHNOLOGY Contract record no.: X2024980004223 Denomination of utility model: A grid connected photovoltaic power generation system Granted publication date: 20200221 License type: Common License Record date: 20240412 |
|
| EE01 | Entry into force of recordation of patent licensing contract |