CN101951018A - Emergency supply with photovoltaic synchronization feeding function - Google Patents
Emergency supply with photovoltaic synchronization feeding function Download PDFInfo
- Publication number
- CN101951018A CN101951018A CN2010102746263A CN201010274626A CN101951018A CN 101951018 A CN101951018 A CN 101951018A CN 2010102746263 A CN2010102746263 A CN 2010102746263A CN 201010274626 A CN201010274626 A CN 201010274626A CN 101951018 A CN101951018 A CN 101951018A
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- China
- Prior art keywords
- photovoltaic array
- inverter
- batteries
- emergency
- storage battery
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- 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.)
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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
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses an emergency supply with a photovoltaic synchronization feeding function, which is characterized in that an inverter and a photovoltaic array are arranged together; a storage battery is arranged at the input end of the inverter; the output of the inverter is connected with a power grid through an AC contactor; the inverter is used for inverting the direct current energy of the storage battery into the alternating current energy for being used as a load power supply when the power gird breaks down; the photovoltaic array is arranged at the two ends of the storage battery through a blocking diode and enables the blocking diode to be conducted by an output voltage higher than the terminal voltage of the storage battery; the direct current energy of the photovoltaic array PV is fed back to the power gird through the inverter; and the photovoltaic array stops the blocking diode by the output voltage lower than the terminal voltage of the storage battery, and then the circuit is in an emergency state. The invention can ensure the emergency power supply during power off, and also can ensure that when the solar energy is sufficient, the electric energy of the photovoltaic generation system is fed back to the power gird through the inverter.
Description
Technical field
The invention 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.
Summary of the invention
The present invention 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.
Technical solution problem of the present invention adopts following technical scheme:
The present invention has the emergency power supply of grid-connected feed function, is 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 present invention is provided with solar photovoltaic generation system on the emergency power supply basis, 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, beneficial effect of the present invention is embodied in:
When the present invention 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 a structural representation of the present invention.
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 |
|---|---|---|---|
| CN2010102746263A CN101951018A (en) | 2010-09-03 | 2010-09-03 | Emergency supply with photovoltaic synchronization feeding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102746263A CN101951018A (en) | 2010-09-03 | 2010-09-03 | Emergency supply with photovoltaic synchronization feeding function |
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| Publication Number | Publication Date |
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| CN101951018A true CN101951018A (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010102746263A Pending CN101951018A (en) | 2010-09-03 | 2010-09-03 | Emergency supply with photovoltaic synchronization feeding function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201740A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Drawer type emergency power supply |
| CN104201741A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Back type emergency power supply |
| EP2824790A4 (en) * | 2012-03-05 | 2015-08-12 | Sanyo Electric Co | Control device, conversion device, control method, and electricity distribution system |
| CN107769726A (en) * | 2013-03-15 | 2018-03-06 | 索派德公司 | Integrated solar panel |
| CN108199411A (en) * | 2018-01-19 | 2018-06-22 | 湖州积微电子科技有限公司 | Solar energy loads alternating current feedback system |
Citations (5)
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| JP2000250646A (en) * | 1999-02-25 | 2000-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Independent photovoltaic power generation system and method |
| CN1972067A (en) * | 2005-11-24 | 2007-05-30 | 上海久能能源科技发展有限公司 | Solar photovoltaic power generation grid-connecting apparatus |
| CN201091063Y (en) * | 2007-06-08 | 2008-07-23 | 上海光苑太阳能科技有限公司 | Solar energy photovoltaic power generation parallel in power station |
| CN101345500A (en) * | 2008-05-16 | 2009-01-14 | 广东志成冠军集团有限公司 | Photovoltaic power generation system with grid-connected generation, independent power generation and UPS function |
| CN201774309U (en) * | 2010-09-03 | 2011-03-23 | 合肥联信电源有限公司 | Emergency power supply with photovoltaic grid feed function |
-
2010
- 2010-09-03 CN CN2010102746263A patent/CN101951018A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000250646A (en) * | 1999-02-25 | 2000-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Independent photovoltaic power generation system and method |
| CN1972067A (en) * | 2005-11-24 | 2007-05-30 | 上海久能能源科技发展有限公司 | Solar photovoltaic power generation grid-connecting apparatus |
| CN201091063Y (en) * | 2007-06-08 | 2008-07-23 | 上海光苑太阳能科技有限公司 | Solar energy photovoltaic power generation parallel in power station |
| CN101345500A (en) * | 2008-05-16 | 2009-01-14 | 广东志成冠军集团有限公司 | Photovoltaic power generation system with grid-connected generation, independent power generation and UPS function |
| CN201774309U (en) * | 2010-09-03 | 2011-03-23 | 合肥联信电源有限公司 | Emergency power supply with photovoltaic grid feed function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2824790A4 (en) * | 2012-03-05 | 2015-08-12 | Sanyo Electric Co | Control device, conversion device, control method, and electricity distribution system |
| US9692257B2 (en) | 2012-03-05 | 2017-06-27 | Panasonic Intellectual Property Management Co., Ltd. | Control device, conversion device, control method, and electricity distribution system |
| CN107769726A (en) * | 2013-03-15 | 2018-03-06 | 索派德公司 | Integrated solar panel |
| CN104201740A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Drawer type emergency power supply |
| CN104201741A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Back type emergency power supply |
| CN108199411A (en) * | 2018-01-19 | 2018-06-22 | 湖州积微电子科技有限公司 | Solar energy loads alternating current feedback system |
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Application publication date: 20110119 |