CN202602378U - Photovoltaic energy storage power station - Google Patents
Photovoltaic energy storage power station Download PDFInfo
- Publication number
- CN202602378U CN202602378U CN2012202726550U CN201220272655U CN202602378U CN 202602378 U CN202602378 U CN 202602378U CN 2012202726550 U CN2012202726550 U CN 2012202726550U CN 201220272655 U CN201220272655 U CN 201220272655U CN 202602378 U CN202602378 U CN 202602378U
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- Prior art keywords
- energy
- energy storage
- power station
- storage system
- super capacitor
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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
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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 utility model relates to a photovoltaic energy storage power station, which comprises a solar panel for converting solar energy into electric energy, a DC/DC converter used for converting DC output by the solar panel into stable DC and an energy storage system as well as a controller used for charging the energy storage system by the DC/DC converter, wherein the energy storage system consists of a super capacitor and a storage battery which are connected with each other. The photovoltaic energy storage power station adopts the super capacitor energy storage system, can quickly meet requirements on charging and discharging, absorb illumination with micro frequency and improve efficiency of the energy storage power station, is quick in energy storage and has ultra-long cycle life. Response time of discharging of the super capacitor is within ms and is greatly shorter than that of a conventional storage battery; and safety of a load can be effectively protected in real time.
Description
Technical field
The utility model relates to energy-accumulating power station, especially a kind of photovoltaic energy-accumulating power station.
Background technology
Advantages such as the energy is the important substance basis that human society exists and develops, and along with the development of society, the energy day by day reduces, and solar energy is as one of important energy source, and is never exhausted with it, pollution-free are developed just rapidly.But there are defectives such as intermittence, unsteadiness and uncontrollability in solar energy.Be harmony and the continuity that guarantees its power supply, energy storage device becomes the crucial matching component of photovoltaic generating system.The energy-storage system kind is more, though differ like its technology maturity such as lead-acid battery, lithium battery, sodium-sulphur battery and vanadium flow batteries, all than being prone to realize big capacity energy storage.But the speed that discharges and recharges of battery class energy storage, discharge and recharge number of times etc. and be restricted, can not be used to realize Fast Dynamic power back-off, suppress the quick variation of dynamic oscillation, level and smooth wind power generation output.
Summary of the invention
The photovoltaic energy-accumulating power station of level before the purpose of the utility model is that a kind of charge and discharge fast are provided and discharges and recharges number of times superorder far away.
A kind of photovoltaic energy-accumulating power station; It comprises with solar energy change into electric energy solar panel, be used for changing the direct current of solar panel output DC/DC converter, the energy-storage system of galvanic current into, and be used to the controller that utilizes the DC/DC converter that energy-storage system is charged.Said energy-storage system comprises super capacitor that links to each other with controller and the storage battery that links to each other with super capacitor.
In a preferred embodiment, described photovoltaic energy-accumulating power station also comprises the DC/AC inverter that is used for the direct current of DC/DC converter output is changed into alternating current.
The photovoltaic energy-accumulating power station of the utility model adopts the super capacitor energy-storage system, can respond apace and discharge and recharge requirement, can absorb frequent faint light photograph, improves the efficient of energy-accumulating power station, and energy storage rapidly, have the cycle life of overlength.The super capacitor discharge response time is significantly shorter than traditional storage battery within ms, can effectively, in time protect the safety of load.
Description of drawings
Fig. 1 is the circuit structure block diagram of the photovoltaic energy-accumulating power station of an embodiment.
Embodiment
To combine specific embodiment and accompanying drawing that the utility model photovoltaic energy-accumulating power station is described in further detail below.
As shown in Figure 1, in the preferred embodiment, the photovoltaic energy-accumulating power station mainly comprises solar panel, DC/DC converter, controller, energy-storage system and DC/AC inverter.
It is electric energy that solar panel is used for solar energy converting, and exports with direct current.The DC/DC converter is used for changing the direct current of solar panel output into galvanic current.The DC/AC inverter is used for changing the direct current of DC/DC converter output into alternating current, and this alternating current can directly offer AC load under the control of controller, offer AC network after also can boosting through transformer, gives mains supply.Controller is used to control the DC/DC converter energy-storage system is charged, and simultaneously it is also controlled energy-storage system electric energy stored reasonably is assigned in each load.Energy-storage system comprises super capacitor that links to each other with controller and the storage battery that links to each other with super capacitor.Energy-storage system can be directly be the DC load power supply, supplies with AC load or electrical network after also can changing direct current into alternating current through the DC/AC inverter.
The photovoltaic energy-accumulating power station of the utility model can promptly be sent out i.e. usefulness to the electric energy of solar power generation, also can power storage be got up with the super capacitor energy-storage system, uses when needed.Generally speaking, the utlity model has following advantage.
(1) high watt-hour efficiency: because the solar cell cost of electricity-generating is than higher, so the charging of energy-storage system, discharging efficiency is that the most important, the most basic of solar energy power generating energy storage battery is exactly index.Super capacitor is because thermal energy storage process belongs to physical reactions; Therefore charge/discharge stream can instantaneously reach the hundreds of peace, realizes quick charge, response in the outage ms time; The safety of power consumption equipment adequately protects; And in Charge under the suitable service condition more than 500,000 times, advantage such as non-maintaining has great potentiality in photovoltaic-electrification energy storage system.
(2) more smooth charging characteristic curve: for small-sized independent photovoltaic generating system; System is to the tracking of MPPT (peak power output point); Most situation are to rely on the clamper of energy-storage system to the solar module working point, if the charging characteristic curve of energy-storage system is more smooth, the voltage difference of the DC/DC converter of MPPT the inside can be accomplished minimum; To increase so follow the tracks of efficient, with the utilization ratio that effectively improves solar cell.Super capacitor cooperates with storage battery, can make the charging characteristic curve of energy-storage system comparatively smooth.
(3) the charging and discharging cycle-index is many: it is long that the charging and discharging cycle-index is actually the life-span that shows use more, and this is a very important index.Because the photovoltaic cell component life-span was generally about 25 years, so the energy-storage units of extra long life can be saved the operation and maintenance cost to greatest extent.Solar energy causes shorter battery life because characteristics---the instability of sunlight strength of self possibly cause storage battery frequent charge repeatedly.And ultracapacitor has advantages such as charge and discharge circulation life and non-maintaining fully, high reliability more than 500,000 times.In addition, in the system that strong load of moment is arranged, utilize this capacitor system voltage of can playing stably, reduce the effect of system power supply capacity configuration.
(4) charge/discharge fast response: because there are characteristics such as randomness, unsteadiness, paddy-peak differ greatly in solar power generation, require energy-storage system can absorb frequent faint light photograph, characteristic such as energy storage is rapid.Super capacitor can be realized quick charge, response in the outage ms time, the safety of the power consumption equipment that adequately protects.
(5) good charge/discharge characteristics; Be approximately linear relationship: super capacitor still can carry out energy storage under the faint light conditions of the sun; And traditional storage battery is tantamount to the huge waste to energy like this as long as when voltage reaches certain thresholding, could absorb energy.Super capacitor can make solar panel transform the raising of absorption usefulness more than 3%, hull cell is meaned improve 37.5% absorptivity, has increased energy storage efficiency greatly, has reduced cost.
Though the description to the utility model combines above specific embodiment to carry out,, those skilled in the art that can carry out many replacements, modification and variation according to above-mentioned content, be conspicuous.Therefore, all are such substitute, improve and change all is included in the spirit and scope of attached claim.
Claims (2)
1. photovoltaic energy-accumulating power station; Comprise with solar energy change into electric energy solar panel, be used for the direct current of solar panel output is changed into DC/DC converter, the energy-storage system of galvanic current; And be used to the controller that utilizes the DC/DC converter that energy-storage system is charged; It is characterized in that said energy-storage system comprises super capacitor that links to each other with controller and the storage battery that links to each other with super capacitor.
2. photovoltaic energy-accumulating power station according to claim 1 is characterized in that, also comprises the DC/AC inverter that is used for the direct current of DC/DC converter output is changed into alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202726550U CN202602378U (en) | 2012-06-11 | 2012-06-11 | Photovoltaic energy storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202726550U CN202602378U (en) | 2012-06-11 | 2012-06-11 | Photovoltaic energy storage power station |
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| Publication Number | Publication Date |
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| CN202602378U true CN202602378U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012202726550U Expired - Fee Related CN202602378U (en) | 2012-06-11 | 2012-06-11 | Photovoltaic energy storage power station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715679A (en) * | 2013-12-11 | 2014-04-09 | 四川中光防雷科技股份有限公司 | Thunder and lightning storage and protection method and device thereof based on energy storage by capacitor |
| CN105811862A (en) * | 2016-04-29 | 2016-07-27 | 易电通（北京）储能科技有限公司 | Energy storage power station and energy storage method |
| CN107911061A (en) * | 2017-12-06 | 2018-04-13 | 北京嘉寓门窗幕墙股份有限公司 | Photovoltaic energy storage power station |
-
2012
- 2012-06-11 CN CN2012202726550U patent/CN202602378U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715679A (en) * | 2013-12-11 | 2014-04-09 | 四川中光防雷科技股份有限公司 | Thunder and lightning storage and protection method and device thereof based on energy storage by capacitor |
| CN103715679B (en) * | 2013-12-11 | 2017-02-15 | 四川中光防雷科技股份有限公司 | Thunder and lightning storage and protection method and device thereof based on energy storage by capacitor |
| CN105811862A (en) * | 2016-04-29 | 2016-07-27 | 易电通（北京）储能科技有限公司 | Energy storage power station and energy storage method |
| CN107911061A (en) * | 2017-12-06 | 2018-04-13 | 北京嘉寓门窗幕墙股份有限公司 | Photovoltaic energy storage power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130611 |