CN104682418A - Photovoltaic power generation grid-connected system - Google Patents
Photovoltaic power generation grid-connected system Download PDFInfo
- Publication number
- CN104682418A CN104682418A CN201310628456.8A CN201310628456A CN104682418A CN 104682418 A CN104682418 A CN 104682418A CN 201310628456 A CN201310628456 A CN 201310628456A CN 104682418 A CN104682418 A CN 104682418A
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- Prior art keywords
- grid
- module
- power generation
- master controller
- inverter
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- 238000010248 power generation Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H02J3/383—
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- H02J13/0006—
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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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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a photovoltaic power generation grid-connected system which comprises a main controller and a power supply module, wherein the power supply module comprises a solar array, a driving circuit, a switching direct-current boosted circuit, an inverter, a grid-connected switch, a power meter, a protective relay and a power grid, wherein an alternating-current detection circuit which is connected to the output end of the inverter and a grid-connected voltage detection circuit which is connected with the grid-connected switch are connected to the input end of the main controller which is connected with a monitoring host, the driving circuit and the protective relay are connected to the output end of the main controller, and a liquid crystal display module, a touch control module and an alarm module are further connected to the output end of the main controller. According to the photovoltaic power generation grid-connected system, a power supply system can be remotely monitored in real time, the power supply efficiency is high, the power supply is stable, and the photovoltaic power generation grid-connected system has the advantages of high reliability in control, high working stability, long service life, strong practicability, good use effect and convenience in popularization and use.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, especially relate to a kind of photovoltaic power generation grid-connecting system.
Background technology
At present, parallel network power generation is the Main Trends of The Development of photovoltaic application, various grid-connected photovoltaic system arises at the historic moment, for outstanding role is played in the sustainable development of economic society and environmental protection, but, because photovoltaic generation itself is different from the randomness of normal power supplies and intermittent feature, it is incorporated into the power networks and forms certain threat to the quality of power supply of electrical network and safety and stability; Meanwhile, there is the shortcoming such as complex structure, expansion capability difference in present most of grid-connected photovoltaic systems, can not meet the demand of modernization economic development.
Summary of the invention
Technical problem to be solved by this invention is that, for above-mentioned deficiency of the prior art, provide a kind of photovoltaic power generation grid-connecting system, its structure is simple, reasonable in design, it is convenient to realize, and uses simple operation, can real-time remote monitoring electric power system, power supplying efficiency is high and power supply is stable, and control reliability high, job stability is high, long service life, practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of photovoltaic power generation grid-connecting system, it is characterized in that: comprise master controller and supply module, described supply module comprises the solar battery array for solar energy being converted to electric energy, the drive circuit for drive circuit connected with solar battery array, the switch DC booster circuit raised for the direct voltage that solar battery array is changed connected with drive circuit, the inverter for direct current being converted to alternating current connected with switch DC booster circuit, connect with inverter for controlling grid-connected switch solar power generation module converts electric energy and electrical network merged, for adding up the wattmeter of electricity, the protection relay stable for the protection of mains supply and electrical network, described master controller input is connected to the alternating current testing circuit detected for alternating current after changing inverter and the grid-connected voltage detecting circuit for detecting grid-connected voltage connected with grid-connected switch that connect with inverter output end, described master controller connects for monitoring host computer supply module being carried out to remote monitoring with being arranged in Control Room, the output of described master controller connects with the drive circuit in supply module and protection relay, described master controller output also with the LCD MODULE be arranged at for showing the every situation of current system in Control Room, the alarm module carrying out alarm when to be arranged on monitoring host computer for carrying out the touch-control module of touch control to system and breaking down for system power supply instability connects.
Above-mentioned a kind of photovoltaic power generation grid-connecting system, is characterized in that: described master controller is dsp controller.
The present invention compared with prior art has the following advantages:
1, present invention employs integrated, modular design, structure is simple, reasonable in design, and it is convenient to realize.
2, the present invention can real-time remote monitoring electric power system, and power supplying efficiency is high and power supply is stable.
3, control reliability of the present invention is high, and job stability is high, long service life.
4, of the present invention practical, result of use is good, is convenient to promote the use of.
In sum, structure of the present invention is simple, reasonable in design, and it is convenient to realize, and uses simple operation, can real-time remote monitoring electric power system, power supplying efficiency is high and power supply is stable, and control reliability high, job stability is high, long service life, practical, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Description of reference numerals:
1-master controller; 2-alternating current testing circuit; 3-grid-connected voltage detecting circuit;
4-solar battery array; 5-drive circuit; 6-switch DC booster circuit;
7-inverter; 8-grid-connected switch; 9-wattmeter;
10-protection relay; 11-electrical network; 12-LCD MODULE;
13-touch-control module; 14-monitoring host computer; 15-alarm module.
Embodiment
As shown in Figure 1, the present invention includes master controller 1 and supply module, described supply module comprises the solar battery array 4 for solar energy being converted to electric energy, the drive circuit 5 for drive circuit connected with solar battery array 4, the switch DC booster circuit 6 raised for the direct voltage that solar battery array 4 is changed connected with drive circuit 5, the inverter 7 for direct current being converted to alternating current connected with switch DC booster circuit 6, connect with inverter 7 for controlling the grid-connected switch 8 solar power generation module converts electric energy and electrical network merged, for adding up the wattmeter 9 of electricity, the protection relay 10 of powering stable for the protection of electrical network 11 and electrical network 11, described master controller 1 input be connected to connect with inverter 7 output for changing the alternating current testing circuit 2 that rear alternating current detects and the grid-connected voltage detecting circuit 3 for detecting grid-connected voltage connected with grid-connected switch 8 to inverter 7, described master controller 8 connects for the monitoring host computer 14 supply module being carried out to remote monitoring with being arranged in Control Room, the output of described master controller 1 connects with the drive circuit 5 in supply module and protection relay 10, described master controller 1 output also with the LCD MODULE 12 be arranged at for showing the every situation of current system in Control Room, the alarm module 15 carrying out alarm when to be arranged on monitoring host computer 14 for carrying out the touch-control module 13 of touch control to system and breaking down for system power supply instability connects.
As shown in Figure 1, in the present embodiment, described master controller 1 is dsp controller.
Operation principle of the present invention and the course of work are: the electric energy part that solar battery array 4 is changed provides an electric energy part to carry out grid-connected power supply by supply module into master controller 1; the information that master controller 1 detects according to alternating current detection 2 and grid-connected voltage detecting circuit 3 is controlled by drive circuit 5 and protection relay 10 pairs of systems; and by LCD MODULE 12, each for system entry value is shown in real time, carry out long-range real-time control by the touch-control module 13 pairs of systems be arranged on monitoring host computer 14.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection range of technical solution of the present invention.
Claims (2)
1. a photovoltaic power generation grid-connecting system, it is characterized in that: comprise master controller (1) and supply module, described supply module comprises the solar battery array (4) for solar energy being converted to electric energy, the drive circuit for drive circuit (5) connected with solar battery array (4), the switch DC booster circuit (6) raised for the direct voltage that solar battery array (4) is changed connected with drive circuit (5), the inverter (7) for direct current being converted to alternating current connected with switch DC booster circuit (6), connect with inverter (7) for controlling the grid-connected switch (8) solar power generation module converts electric energy and electrical network merged, for adding up the wattmeter (9) of electricity, the protection relay (10) of powering stable for the protection of electrical network (11) and electrical network (11), described master controller (1) input is connected to the alternating current testing circuit (2) detected for alternating current after changing inverter (7) and the grid-connected voltage detecting circuit (3) for detecting grid-connected voltage connected with grid-connected switch (8) that connect with inverter (7) output, described master controller (8) connects for the monitoring host computer (14) supply module being carried out to remote monitoring with being arranged in Control Room, the output of described master controller (1) connects with the drive circuit (5) in supply module and protection relay (10), described master controller (1) output also with the LCD MODULE (12) be arranged at for showing the every situation of current system in Control Room, the alarm module (15) carrying out alarm when to be arranged on monitoring host computer (14) for carrying out the touch-control module (13) of touch control to system and breaking down for system power supply instability connects.
2. according to a kind of photovoltaic power generation grid-connecting system according to claim 1, it is characterized in that: described master controller (1) is dsp controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310628456.8A CN104682418A (en) | 2013-11-28 | 2013-11-28 | Photovoltaic power generation grid-connected system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310628456.8A CN104682418A (en) | 2013-11-28 | 2013-11-28 | Photovoltaic power generation grid-connected system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104682418A true CN104682418A (en) | 2015-06-03 |
Family
ID=53317156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310628456.8A Pending CN104682418A (en) | 2013-11-28 | 2013-11-28 | Photovoltaic power generation grid-connected system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104682418A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253340A (en) * | 2016-08-24 | 2016-12-21 | 内蒙古科林统德新能源科技发展有限公司 | The concentration grid-connected system of photovoltaic plant |
| CN107959305A (en) * | 2017-12-28 | 2018-04-24 | 国网上海节能服务有限公司 | A kind of roof photovoltaic generation and monitoring system |
| CN108199403A (en) * | 2017-04-26 | 2018-06-22 | 广西师范大学 | Solar energy distribution system based on FPGA |
| CN108321888A (en) * | 2018-02-08 | 2018-07-24 | 安徽机电职业技术学院 | A kind of mobile AC charging system based on NB-IOT technologies |
| CN112234939A (en) * | 2020-08-27 | 2021-01-15 | 国网山东省电力公司日照供电公司 | Distributed photovoltaic cluster monitoring management system and method |
-
2013
- 2013-11-28 CN CN201310628456.8A patent/CN104682418A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253340A (en) * | 2016-08-24 | 2016-12-21 | 内蒙古科林统德新能源科技发展有限公司 | The concentration grid-connected system of photovoltaic plant |
| CN108199403A (en) * | 2017-04-26 | 2018-06-22 | 广西师范大学 | Solar energy distribution system based on FPGA |
| CN107959305A (en) * | 2017-12-28 | 2018-04-24 | 国网上海节能服务有限公司 | A kind of roof photovoltaic generation and monitoring system |
| CN108321888A (en) * | 2018-02-08 | 2018-07-24 | 安徽机电职业技术学院 | A kind of mobile AC charging system based on NB-IOT technologies |
| CN112234939A (en) * | 2020-08-27 | 2021-01-15 | 国网山东省电力公司日照供电公司 | Distributed photovoltaic cluster monitoring management system and method |
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Application publication date: 20150603 |