CN203522211U - Solar energy grid-connected power generation system - Google Patents
Solar energy grid-connected power generation system Download PDFInfo
- Publication number
- CN203522211U CN203522211U CN201320550587.4U CN201320550587U CN203522211U CN 203522211 U CN203522211 U CN 203522211U CN 201320550587 U CN201320550587 U CN 201320550587U CN 203522211 U CN203522211 U CN 203522211U
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- China
- Prior art keywords
- solar
- energy
- voltage
- power generation
- generation system
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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 discloses a solar energy grid-connected power generation system. A power generation current of a solar power plant is transmitted to an inverter through a diode, an auxiliary power supply unit outputs a voltage to a controllable rectifier, the controllable rectifier is in parallel connection with the diode and collects the output voltage of the solar power plant, and the inverter is connected with the power grid. The solar energy grid-connected power generation system is a device capable of effectively utilizing solar photovoltaic energy for power generation and energy supplying, 30%-40% clean energy can be reached when solar photovoltaic power generation devices are installed in every eligible house in urban and rural areas and in various eligible buildings, the solar energy grid-connected power generation system plays an effective role in energy security and in eliminating main pollutants of PM2.5, and plays an important role in consuming photovoltaic energy.
Description
Technical field
The utility model relates to Blast Furnace Top Gas Recovery Turbine Unit (TRT), particularly the lonely net electricity generation system of distributed solar Blast Furnace Top Gas Recovery Turbine Unit (TRT) and solar energy.
Background technology
Utilize at present photovoltaic generation to have many defects, cause being difficult to generate electricity by way of merging two or more grid systems, very unstable mainly due to generating under cloudy and rainy weather, generate electricity by way of merging two or more grid systems very difficult, and with batteries to store energy cost is very high, management difficulty is large, the development of solar power generation is very restricted.
Utility model content
Technical problem to be solved in the utility model is to realize a kind of solar power system of can be effectively and efficiently utilizing photovoltaic to generate electricity by way of merging two or more grid systems, and has guaranteed photovoltaic generation sustainable development.
To achieve these goals, the technical solution adopted in the utility model is: a kind of solar grid-connected electricity generation system, solar power plant generation current is delivered to inverter through diode, auxiliary power unit output voltage is to controlled rectifier, described controlled rectifier and diode also connect and export difference voltage to inverter, described controlled rectifier gathers solar power plant output voltage values, and described inverter is connected with electrical network.
In described controlled rectifier, be provided with one group of capacitor that absorbs solar power plant ultra-voltage.
A solar grid-connected electricity generation system control method, when solar power plant output voltage equals the specified input voltage of electrical network, the output voltage of rectifier is zero, because given voltage adds feedback voltage, is adjusted to zero; When solar power plant output voltage is less than the specified input voltage of electrical network, rectifier control inputs voltage rises, and controlled rectifier voltage also rises, and makes inverter output voltage equal the specified input voltage of electrical network.
The solar grid-connected electricity generation system of the utility model is effectively a kind of and efficiently utilizes photovoltaic to generate electricity and the device of energy supply, on qualified town and country every family and various building, solar energy power generating is installed, can meet 30%-40% clean energy resource, being energy security and the effective means of eliminating PM2.5 major pollutants, is also the Important Action of photovoltaic production capacity of effectively dissolving.
This distributed solar energy generation mode, can form the lonely net generating of solar energy on island and outlying district, as long as there is a family photovoltaic generation, use batteries to store energy as supplementary energy, follow-up photovoltaic generation user can make supplementary energy or with the batteries to store energy of ultracapacitor and low capacity with the online energy, because of the batteries to store energy cost of ultracapacitor and low capacity low, long service life, pollute light, energy for productive life can be round-the-clockly provided, there is the unnecessary electric energy can heat accumulation, Chu Qing, storing compressed air, heat energy, Hydrogen Energy and compressed air can be able to generate electricity again, can thoroughly break the yoke of photovoltaic power generation grid-connecting, implement in full golden sun engineering, Chinese countryside is city transmission of electric energy in the past, borderland, island is interior ground transmission of electric energy in the past, hills, mountain area is Plain transmission of electric energy in the past, meet the solar power generation that central authorities propose, set up the system of efficiently succinctly generating electricity by way of merging two or more grid systems, electrical network can fully be purchased the electric energy of solar photovoltaic generation system, thereby reach the object significantly reducing costs, and can realize the requirement of sustainable development, extremely meet the requirement that amended < < renewable energy resources method > > generates electricity by way of merging two or more grid systems, also meet the requirement of golden sun demonstration project.
Accompanying drawing explanation
Below the content of every width accompanying drawing expression in the utility model specification and the mark in figure are briefly described:
Fig. 1 is solar grid-connected electricity generation system block diagram;
Fig. 2 is solar grid-connected electricity generation system control circuit schematic diagram;
Mark in above-mentioned figure is: 1, solar power plant; 2, controlled rectifier; 3, inverter; 4, auxiliary power unit; 5, diode.
Embodiment
Known referring to Fig. 1, solar grid-connected electricity generation system mainly consists of solar power plant 1, controlled rectifier 2, inverter 3, auxiliary power unit 4 and diode 5, solar power plant 1 generation current is delivered to inverter 3 through diode 5, auxiliary power unit 4 is AC power or storage battery, its output voltage is to controlled rectifier 2, these controlled rectifier 2 output difference voltage and diodes 5 also connect, and gather solar power plant 1 output voltage values, and inverter 3 is connected with electrical network.Specifically, when solar power plant 1 voltage produces fluctuation, the difference voltage of generation is delivered to the control circuit of controlled rectifier 2 by auxiliary power unit 4, and when the voltage drop of solar power plant 1, the voltage of controlled rectifier 2 raises; When the voltage of solar power plant 1 raises, the voltage drop of controlled rectifier 2; When the voltage of solar power plant 1 is normal, controlled rectifier 2 output voltages are zero, and the voltage of solar power plant 1 adds that the voltage of controlled rectifier 2 equals the input voltage of inverter 3 all the time, makes the Voltage-output of inverter 3 steady all the time.
Can also in controlled rectifier 2, be provided with one group of capacitor that absorbs solar power plant 1 ultra-voltage, so just can be in solar power plant 1 generating absorb the electric weight that exceeds the quata while producing ultra-voltage, also just can keep the electric energy of inverter 3 stable, make renewable source of energy generation grid-connected very easy.The electric weight being stored in capacitor can be as the heat energy storing, Hydrogen Energy, compressed air energy etc.
Solar grid-connected electricity generation system control method is as follows: when solar power plant 1 voltage is when normal, when output voltage equals the specified input voltage of electrical network, given voltage adds feedback voltage, and control inputs voltage is zero; When 1 voltage drop of solar power plant, when output voltage is less than the specified input voltage of electrical network, feedback voltage also declines, and control inputs voltage rises, and the voltage of controlled rectifier 2 raises; When solar power plant voltage raises, feedback voltage increases, when feedback voltage equals given voltage, feed back input voltage is zero, the voltage of controlled rectifier 2 is also zero, is now arranged on the capacitor work of absorption solar power plant 1 ultra-voltage in controlled rectifier 2, absorbs unnecessary electric energy, the voltage of guaranteeing solar power plant 1 adds that the voltage of controlled rectifier 2 equals the input voltage of inverter 3 all the time, makes the Voltage-output of inverter 3 steady all the time.The alternative energy storing and electricity generating equipment of this generation mode.
Claims (3)
1. a solar grid-connected electricity generation system, it is characterized in that: solar power plant (1) generation current is delivered to inverter (3) through diode (5), auxiliary power unit (4) output voltage is to controlled rectifier (2), described controlled rectifier (2) and diode (5) also connect, controlled rectifier (2) output difference voltage and solar power plant (1) output voltage values are in series, and be connected with inverter (3), described inverter (3) is connected with electrical network.
2. solar grid-connected electricity generation system according to claim 1, is characterized in that: in described controlled rectifier (2), be provided with one group of capacitor that absorbs solar power plant (1) ultra-voltage.
3. solar grid-connected electricity generation system according to claim 1 and 2, is characterized in that: described auxiliary power unit (4) is AC power or storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550587.4U CN203522211U (en) | 2013-09-05 | 2013-09-05 | Solar energy grid-connected power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550587.4U CN203522211U (en) | 2013-09-05 | 2013-09-05 | Solar energy grid-connected power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522211U true CN203522211U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550587.4U Expired - Fee Related CN203522211U (en) | 2013-09-05 | 2013-09-05 | Solar energy grid-connected power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457292A (en) * | 2013-09-05 | 2013-12-18 | 孙祯 | Solar grid-connected power generation system and control method thereof |
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2013
- 2013-09-05 CN CN201320550587.4U patent/CN203522211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457292A (en) * | 2013-09-05 | 2013-12-18 | 孙祯 | Solar grid-connected power generation system and control method thereof |
| CN103457292B (en) * | 2013-09-05 | 2016-08-24 | 孙祯 | A kind of solar grid-connected electricity generation system and control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20180905 |