CN204721087U - Photovoltaic generation and commercial power complementary system control device - Google Patents
Photovoltaic generation and commercial power complementary system control device Download PDFInfo
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- CN204721087U CN204721087U CN201520504776.7U CN201520504776U CN204721087U CN 204721087 U CN204721087 U CN 204721087U CN 201520504776 U CN201520504776 U CN 201520504776U CN 204721087 U CN204721087 U CN 204721087U
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- power supply
- relay
- control device
- system control
- optocoupler
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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
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Control Of Electrical Variables (AREA)
Abstract
Photovoltaic generation and commercial power complementary system control device belong to clean energy resource applied technical field, particularly relate to a kind of photovoltaic generation and commercial power complementary system control device.The utility model provides photovoltaic generation and the commercial power complementary system control device of short, the environmental protection of a kind of control system response time.The utility model comprises photovoltaic array, the output port of its structural feature photovoltaic array is connected with the input port of DC boosting module, the output port of DC boosting module is connected with the input port of inverter, output one end of inverter is connected with civil power zero line, load power source input one end respectively by the normally closed switch of the first relay, the output other end of inverter is connected with the normally-closed contact of the second relay, the contact of stirring of the second relay is connected with the load power source input other end, and the normally opened contact of the second relay is connected with civil power live wire; Coil-end one end of second relay is connected with the first DC power supply.
Description
Technical field
The utility model belongs to clean energy resource applied technical field, particularly relates to a kind of photovoltaic generation and commercial power complementary system control device.
Background technology
The finiteness of conventional energy resource and skewness, cause most countries energy supply in the world not enough, can not meet the demand of its economic development.In order to effectively alleviate energy demand pressure, all make greater efforts to promote exploitation regenerative resource in current countries in the world.The U.S. and European Union propose, and will reach 20% of energy resource consumption total amount to its proportion developing regenerative resource of the year two thousand twenty.Expect the year two thousand twenty, the ratio of Chinese using renewable energy sources will reach 15% of national total energy consumption.
Solar energy is the regenerative resource of flood tide the most, the solar energy being radiated earth surface every day is about as much as 2.5 hundred million barrels of oil, can meet all energy demand whole world every day in theory completely, therefore Devoting Major Efforts To Developing utilizes solar energy to be also the effective measures increasing non-polluting energy sources supply.
Photovoltaic generation common at present and commercial power complementary system control device exist that A/D sampling precision is not high, amount of calculation is large, single-chip microcomputer calculated performance is required to higher, systems soft ware and hardware designs is more complicated and the control system response time such as to grow at the defect.
Conventional photovoltaic electricity generation system is containing the energy storage link with storage battery, and Installed capital cost and the operation expense of system are higher, there is the secondary environmental pollution problem produced because of Battery recycling.
Summary of the invention
The utility model is exactly for the problems referred to above, provides photovoltaic generation and the commercial power complementary system control device of short, the environmental protection of a kind of control system response time.
For achieving the above object, the utility model adopts following technical scheme, the utility model comprises photovoltaic array, the output port of its structural feature photovoltaic array is connected with the input port of DC boosting module, the output port of DC boosting module is connected with the input port of inverter, output one end of inverter by the normally closed switch of the first relay respectively with civil power zero line, load power source input one end is connected, the output other end of inverter is connected with the normally-closed contact of the second relay, the contact of stirring of the second relay is connected with the load power source input other end, the normally opened contact of the second relay is connected with civil power live wire, coil-end one end of second relay is connected with the first DC power supply, the coil-end other end of the second relay is connected with the collector electrode of a NPN triode, the grounded emitter of the one NPN triode, the base stage of the one NPN triode is connected with the first optocoupler output emitter by the first resistance, first optocoupler output collector electrode connects the first DC power supply, first optocoupler input anode connects the second DC power supply, first optocoupler input negative electrode is connected with the first control signal output port of single-chip microcomputer by the second resistance, the signal input port of single-chip microcomputer is connected with the signal output port of electric energy computation chip, the input of electric energy computation chip is connected with the voltage current transformating circuit of photovoltaic array.
Second control signal output port of described single-chip microcomputer is connected with the second optocoupler input negative electrode by the 3rd resistance, second optocoupler input anode connects the second DC power supply, second optocoupler output collector electrode connects the first DC power supply, second optocoupler output emitter is connected with the base stage of the 2nd NPN triode by the 4th resistance, the grounded emitter of the 2nd NPN triode, the collector electrode of the 2nd NPN triode is connected with coil-end one end of the first relay, another termination first DC power supply of the coil-end of the first relay.
As a kind of preferred version, the collector electrode of a NPN triode described in the utility model is connected with the first diode anode, and the first diode cathode connects the first DC power supply.
As another kind of preferred version, the collector electrode of the 2nd NPN triode described in the utility model is connected with the second diode anode, and the second diode cathode connects the first DC power supply.
As another kind of preferred version, single-chip microcomputer described in the utility model adopts C8051F single-chip microcomputer.
Secondly, electric energy computation chip described in the utility model adopts ADE7878 electric energy computation chip.
In addition, the first DC power supply described in the utility model adopts+12V power supply, and the second DC power supply adopts+5V power supply.
The utility model beneficial effect.
The utility model uses electric energy computation chip to measure the output voltage of photovoltaic array, output current, overcome that conventional photovoltaic generating is not high with commercial power complementary system control device A/D sampling precision, amount of calculation large, to single-chip microcomputer calculated performance requires higher, hardware designs is more complicated and the defect such as control system response time length.Single-chip microcomputer can directly with electric energy computation chip export measurement result for foundation, by optocoupler amplifier, photovoltaic power generation array and mains supply are automatically switched.
The utility model has got rid of the energy storage link containing storage battery based on the photovoltaic generation of electric energy computation chip and commercial power complementary system control device, greatly reduce initial outlay cost and the operation expense of system, more there is not the secondary pollution problem produced because of Battery recycling.
The utility model provides the hardware foundation of a kind of photovoltaic generation and commercial power complementary system control device.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.The utility model protection range is not only confined to the statement of following content.
Fig. 1 is the utility model schematic block circuit diagram.
Embodiment
As shown in the figure, the utility model comprises photovoltaic array, the output port of its structural feature photovoltaic array is connected with the input port of DC boosting module, the output port of DC boosting module is connected with the input port of inverter, output one end of inverter by the normally closed switch of the first relay respectively with civil power zero line, load power source input one end is connected, the output other end of inverter is connected with the normally-closed contact of the second relay, the contact of stirring of the second relay is connected with the load power source input other end, the normally opened contact of the second relay is connected with civil power live wire, coil-end one end of second relay is connected with the first DC power supply, the coil-end other end of the second relay is connected with the collector electrode of a NPN triode, the grounded emitter of the one NPN triode, the base stage of the one NPN triode is connected with the first optocoupler output emitter by the first resistance, first optocoupler output collector electrode connects the first DC power supply, first optocoupler input anode connects the second DC power supply, first optocoupler input negative electrode is connected with the first control signal output port of single-chip microcomputer by the second resistance, the signal input port of single-chip microcomputer is connected with the signal output port of electric energy computation chip, the input of electric energy computation chip is connected with the voltage current transformating circuit of photovoltaic array.
Second control signal output port of described single-chip microcomputer is connected with the second optocoupler input negative electrode by the 3rd resistance, second optocoupler input anode connects the second DC power supply, second optocoupler output collector electrode connects the first DC power supply, second optocoupler output emitter is connected with the base stage of the 2nd NPN triode by the 4th resistance, the grounded emitter of the 2nd NPN triode, the collector electrode of the 2nd NPN triode is connected with coil-end one end of the first relay, another termination first DC power supply of the coil-end of the first relay.
The collector electrode of a described NPN triode is connected with the first diode anode, and the first diode cathode connects the first DC power supply.
The collector electrode of described 2nd NPN triode is connected with the second diode anode, and the second diode cathode connects the first DC power supply.
Described single-chip microcomputer adopts C8051F single-chip microcomputer.
Described electric energy computation chip adopts ADE7878 electric energy computation chip.
Described first DC power supply adopts+12V power supply, and the second DC power supply adopts+5V power supply.
Below in conjunction with accompanying drawing, the course of work of the present utility model is described.
The electric current that photovoltaic array produces enters DC boosting module by wire, after boosting inverter, enter inverter.
The electric current that the electric energy computation chip ADE7878 with A/D translation function exports photovoltaic array, voltage are measured, and send into single-chip microcomputer C8051F, alleviate the amount of calculation of single-chip microcomputer, shorten system response time after measurement result being carried out A/D conversion.Single-chip microcomputer directly with electric energy computation chip export measurement result for foundation, by the first optical coupling, photovoltaic array and mains supply are automatically switched.
Under normal circumstances, be delivered to the power input of load through inverter from the electric energy of photovoltaic array by the normally closed switch of the first relay, namely when solar radiation quantity is sufficient, load provides electric energy by photovoltaic array, achieves solar power generation and namely sends out object namely.
When the set point of measurement result lower than single-chip microcomputer that electric energy computation chip exports, solar radiation quantity not sufficient is described.Now, the P1.1 mouth output low level of single-chip microcomputer, make the conducting under the effect of+5V power supply of the diode in the second optocoupler also luminous, phototriode simultaneously in the second optocoupler is photosensitive, and making its conducting under the effect of+12V power supply, the signal of telecommunication is delivered to again the base stage of the second triode by+12V power supply after the phototriode in the second optocoupler by the 4th resistance, the second triode ON, the coil of the first relay obtains electric, and the normally closed switch of the first relay disconnects.Simultaneously, the P1.0 mouth output low level of single-chip microcomputer, make the conducting under the effect of+5V power supply of the light-emitting diode in the first optocoupler also luminous, phototriode simultaneously in the first optocoupler is photosensitive, and makes its conducting under the effect of+12V power supply, and the signal of telecommunication is delivered to again the base stage of a NPN triode by+12V power supply after the phototriode in the first optocoupler by the first resistance, one NPN triode ON, the coil of the second relay obtains electric, and the normally opened contact of the second relay closes, and normally-closed contact disconnects.Realize the power supply of load to be converted to civil power by photovoltaic array thus, thus achieve the object that civil power is smoothly cut when solar radiation quantity not sufficient, ensure that the reliability of load supplying.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection range of the present utility model as long as meet.
Claims (6)
1. photovoltaic generation and commercial power complementary system control device, comprise photovoltaic array, it is characterized in that the output port of photovoltaic array is connected with the input port of DC boosting module, the output port of DC boosting module is connected with the input port of inverter, output one end of inverter by the normally closed switch of the first relay respectively with civil power zero line, load power source input one end is connected, the output other end of inverter is connected with the normally-closed contact of the second relay, the contact of stirring of the second relay is connected with the load power source input other end, the normally opened contact of the second relay is connected with civil power live wire, coil-end one end of second relay is connected with the first DC power supply, the coil-end other end of the second relay is connected with the collector electrode of a NPN triode, the grounded emitter of the one NPN triode, the base stage of the one NPN triode is connected with the first optocoupler output emitter by the first resistance, first optocoupler output collector electrode connects the first DC power supply, first optocoupler input anode connects the second DC power supply, first optocoupler input negative electrode is connected with the first control signal output port of single-chip microcomputer by the second resistance, the signal input port of single-chip microcomputer is connected with the signal output port of electric energy computation chip, the input of electric energy computation chip is connected with the voltage current transformating circuit of photovoltaic array,
Second control signal output port of described single-chip microcomputer is connected with the second optocoupler input negative electrode by the 3rd resistance, second optocoupler input anode connects the second DC power supply, second optocoupler output collector electrode connects the first DC power supply, second optocoupler output emitter is connected with the base stage of the 2nd NPN triode by the 4th resistance, the grounded emitter of the 2nd NPN triode, the collector electrode of the 2nd NPN triode is connected with coil-end one end of the first relay, another termination first DC power supply of the coil-end of the first relay.
2. photovoltaic generation and commercial power complementary system control device according to claim 1, it is characterized in that the collector electrode of a described NPN triode is connected with the first diode anode, the first diode cathode connects the first DC power supply.
3. photovoltaic generation and commercial power complementary system control device according to claim 1, it is characterized in that the collector electrode of described 2nd NPN triode is connected with the second diode anode, the second diode cathode connects the first DC power supply.
4. photovoltaic generation and commercial power complementary system control device according to claim 1, is characterized in that described single-chip microcomputer adopts C8051F single-chip microcomputer.
5. photovoltaic generation and commercial power complementary system control device according to claim 1, is characterized in that described electric energy computation chip adopts ADE7878 electric energy computation chip.
6. photovoltaic generation and commercial power complementary system control device according to claim 1, it is characterized in that described first DC power supply adopts+12V power supply, the second DC power supply adopts+5V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520504776.7U CN204721087U (en) | 2015-07-14 | 2015-07-14 | Photovoltaic generation and commercial power complementary system control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520504776.7U CN204721087U (en) | 2015-07-14 | 2015-07-14 | Photovoltaic generation and commercial power complementary system control device |
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| CN204721087U true CN204721087U (en) | 2015-10-21 |
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| CN201520504776.7U Expired - Fee Related CN204721087U (en) | 2015-07-14 | 2015-07-14 | Photovoltaic generation and commercial power complementary system control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069785A (en) * | 2017-05-25 | 2017-08-18 | 河南迎基太阳能科技有限公司 | A kind of scheduling system |
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN110365198A (en) * | 2019-08-13 | 2019-10-22 | 阳光电源股份有限公司 | The power of alterating and direct current handover control system and method for inverter |
-
2015
- 2015-07-14 CN CN201520504776.7U patent/CN204721087U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069785A (en) * | 2017-05-25 | 2017-08-18 | 河南迎基太阳能科技有限公司 | A kind of scheduling system |
| CN107947334A (en) * | 2017-11-21 | 2018-04-20 | 广州圣力电源实业有限公司 | A kind of two-supply circuit system |
| CN110365198A (en) * | 2019-08-13 | 2019-10-22 | 阳光电源股份有限公司 | The power of alterating and direct current handover control system and method for inverter |
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| 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: 20151021 Termination date: 20160714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |