CN201774309U - Emergency power supply with photovoltaic grid feed function - Google Patents
Emergency power supply with photovoltaic grid feed function Download PDFInfo
- Publication number
- CN201774309U CN201774309U CN2010205200285U CN201020520028U CN201774309U CN 201774309 U CN201774309 U CN 201774309U CN 2010205200285 U CN2010205200285 U CN 2010205200285U CN 201020520028 U CN201020520028 U CN 201020520028U CN 201774309 U CN201774309 U CN 201774309U
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- CN
- China
- Prior art keywords
- photovoltaic array
- power
- power supply
- inverse
- reactor
- 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.)
- Expired - Fee Related
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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
-
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides an emergency power supply with photovoltaic grid feed function, which is characterized in that an inverse reactor and a photovoltaic array are jointly arranged, a storage battery set is arranged on input end of the inverse reactor, the output of the inverse reactor is connected to the power grid by using an alternating current contactor, the inverse reactor is used for inverting the direct current power of the storage battery set into alternating current power as load power when the power grid is faulted; the photovoltaic array is arranged on the two ends of the storage battery set by means of a non-return diode, the photovoltaic array is used for conducting the non-return diode by providing an output voltage which is higher than the voltage of the storage battery set end, and the direct current power of the photovoltaic array PV is fed back to the power grid by means of the inverse reactor and the circuit is in an emergency state in the case that the non-return diode is stopped by the photovoltaic array of which the output voltage is lower than the voltage of the storage battery set end. The emergency power supply with photovoltaic grid feed function provided by the utility model has the advantages that the emergency power supply can be ensured while power failure and the electric energy within the photovoltaic power generation system can be fed back to the power grid by using the inverse reactor when the solar energy is enough.
Description
Technical field
The utility model belongs to the Electrical Control Technology field.
Background technology
Development along with society, the building in city trends towards extensive, high stratification development, in order to reduce the heavy economic losses that interruption of power supply causes, in the building's electrical design in a lot of areas, emergency power supply as the stand-by power supply that is independent of outside the electrical network, is applied among the various architectural engineerings.
Solar photovoltaic generation system is a kind of system that utilizes photoelectricity transformation principle and corresponding opto-electronic conversion equipment to generate electricity, it is easy for installation, scale is changeable, exhaust emission material, noiselessness, whole life period are almost not non-maintaining for power generation process, and solar energy power generating is an important renewable energy.
But, in the prior art,, suppressed the popularization and the application of emergency power supply and solar photovoltaic technology because the equipment cost of emergency power supply and solar energy power generating is higher.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of emergency power supply with grid-connected feed function is provided, and the emergency service in the time of can guaranteeing to have a power failure again can be when solar energy be sufficient, by the contrary device of answering, with the electric energy feedback telegram in reply net of photovoltaic generating system.
The utility model technical solution problem adopts following technical scheme:
The utlity model has the emergency power supply of grid-connected feed function, be characterized in being provided with jointly contrary answer device YN and photovoltaic array PV;
Batteries GB is arranged on described contrary input of answering device YN, describedly contraryly answers the output of device YN to be connected with electrical network by A.C. contactor KM2, and described is to be that AC energy is as load power source with the direct current energy inversion of batteries GB when electric network fault against answering device YN;
Described photovoltaic array PV is arranged on the two ends of batteries GB by check diode D1, described photovoltaic array PV makes check diode D1 conducting with the output voltage that is higher than the batteries terminal voltage, and the direct current energy of photovoltaic array PV answers device YN to be fed back to electrical network by contrary; Described photovoltaic array PV ends check diode D1 with the output voltage that is lower than the batteries terminal voltage, and circuit is emergency rating.
The utility model is on the emergency power supply basis solar photovoltaic generation system to be set, by being the control core system with the digital processing unit, the contrary operating state of answering device of control, and control contactor is realized the conversion of grid-connected power supply and emergency service, the unification of realization emergency service and photovoltaic electric energy feed.Compared with the prior art, the utility model beneficial effect is embodied in:
When the utility model not only can satisfy grid power blackout for the needs of emergency service, and can be when solar energy be sufficient, by the contrary device of answering, with the electric energy feedback telegram in reply net of photovoltaic generating system; Effectively improved the service efficiency of emergency power plant, the performance value-added content of product; Reduce the cost of solar photovoltaic grid-connection generating simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
In the present embodiment, constitute emergent inverter by contrary device YN, batteries GB, charger, filter inductance L, Industrial Frequency Transformer T, direct current flat filter capacitor C and A.C. contactor KM1, the KM2 of answering; Batteries GB is arranged on the input of emergent inverter, and the output of emergent inverter is connected with electrical network by A.C. contactor KM2, and emergent inverter is to be that AC energy is as load power source with the direct current energy inversion of batteries GB when electric network fault.
Photovoltaic array PV is arranged on the two ends of batteries GB by check diode D1, and photovoltaic array PV makes check diode D1 conducting with the output voltage that is higher than the batteries terminal voltage, and the direct current energy of photovoltaic array PV answers device YN to be fed back to electrical network by contrary; Photovoltaic array PV ends check diode D1 with the output voltage that is lower than the batteries terminal voltage, and circuit is emergency rating.
At first detection of grid voltage, battery tension and photovoltaic array voltage after the start, if line voltage is normal, A.C. contactor KM1 closure, electrical network powers to the load; When battery tension also is full, photovoltaic array voltage is normal, at this moment emergently contraryly answers device to be operated under the pattern of being incorporated into the power networks, the KM2 closure, and the emergent contrary output voltage of device of answering is supplied with electrical network and AC load; When the photovoltaic array electric voltage exception, when sunlight deficiency or night, at this moment emergent KM2 disconnects against answering device to quit work, and the emergent contrary device of answering stops to electrical network and AC load power supply.
When electrical network breaks down, then system is after detecting electric network fault, and automatic disconnection KM1 changes emergent inverter mode over to, and the KM2 closure continues powering load, plays the effect of emergency power supply.
If line voltage is normal, if find that accumulator electric-quantity is discontented, disconnect KM2 this moment, and system stops to be incorporated into the power networks, and,, detected and then forward the feed pattern that is incorporated into the power networks automatically again to after the condition of being incorporated into the power networks meets after storage battery is full of electricity to charge in batteries by charger.
Claims (1)
1. the emergency power supply that has grid-connected feed function is characterized in that being provided with jointly contrary answer device YN and photovoltaic array PV;
Batteries GB is arranged on described contrary input of answering device YN, describedly contraryly answers the output of device YN to be connected with electrical network by A.C. contactor KM2, and described is to be that AC energy is as load power source with the direct current energy inversion of batteries GB when electric network fault against answering device YN;
Described photovoltaic array PV is arranged on the two ends of batteries GB by check diode D1, described photovoltaic array PV makes check diode D1 conducting with the output voltage that is higher than the batteries terminal voltage, and the direct current energy of photovoltaic array PV answers device YN to be fed back to electrical network by contrary; Described photovoltaic array PV ends check diode D1 with the output voltage that is lower than the batteries terminal voltage, and circuit is emergency rating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205200285U CN201774309U (en) | 2010-09-03 | 2010-09-03 | Emergency power supply with photovoltaic grid feed function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205200285U CN201774309U (en) | 2010-09-03 | 2010-09-03 | Emergency power supply with photovoltaic grid feed function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201774309U true CN201774309U (en) | 2011-03-23 |
Family
ID=43754146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205200285U Expired - Fee Related CN201774309U (en) | 2010-09-03 | 2010-09-03 | Emergency power supply with photovoltaic grid feed function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201774309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951018A (en) * | 2010-09-03 | 2011-01-19 | 合肥联信电源有限公司 | Emergency supply with photovoltaic synchronization feeding function |
| CN102857089A (en) * | 2011-06-27 | 2013-01-02 | 朱建国 | Auxiliary power supply of photovoltaic grid-connected inverter and photovoltaic power generating grid-connected system comprising auxiliary power supply |
-
2010
- 2010-09-03 CN CN2010205200285U patent/CN201774309U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951018A (en) * | 2010-09-03 | 2011-01-19 | 合肥联信电源有限公司 | Emergency supply with photovoltaic synchronization feeding function |
| CN102857089A (en) * | 2011-06-27 | 2013-01-02 | 朱建国 | Auxiliary power supply of photovoltaic grid-connected inverter and photovoltaic power generating grid-connected system comprising auxiliary power supply |
| CN102857089B (en) * | 2011-06-27 | 2014-12-10 | 深圳市永联科技有限公司 | Auxiliary power supply of photovoltaic grid-connected inverter and photovoltaic power generating grid-connected system comprising auxiliary power supply |
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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: 20110323 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |