CN203788053U - Energy storage system based on solar cells and super capacitor sets - Google Patents
Energy storage system based on solar cells and super capacitor sets Download PDFInfo
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- CN203788053U CN203788053U CN201420109551.7U CN201420109551U CN203788053U CN 203788053 U CN203788053 U CN 203788053U CN 201420109551 U CN201420109551 U CN 201420109551U CN 203788053 U CN203788053 U CN 203788053U
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- bank
- super capacitors
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- charging management
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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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an energy storage system based on solar cells and super capacitor sets. A solar cell panel charges the super capacitor sets via a charging management system, the charging management system monitors the charging current and voltage in real time to prevent the super capacitor sets from exceeding a rated voltage, each super capacitor protective circuit adjusts voltages of different super capacitors in one capacitor set in real time to ensure that the voltages of the capacitors in the same capacitor set are balanced and consistent, and a DC/DC step-down converter reduces the voltages of the super capacitor sets to generate a constant dc output (+12V, +5V). Thus, when there is sunshine, the solar cell panel stores electric energy in the super capacitors; and the super capacitors supply power to the DC/DC step-down converter at night. Thus, the energy storage system with stable and uninterrupted dc power output is realized, and new energy is effectively utilized.
Description
Technical field
The utility model relates to energy recovery reutilization technology field, is specifically related to a kind of energy-storage system based on solar cell and bank of super capacitors.
Background technology
Nowadays, development along with demand and the power-saving technology of new forms of energy industry, ultracapacitor as Modern New energy storage device really steps into high development and application stage, ultracapacitor is taken things easy clear superiority with respect to traditional electrical chemical energy storage equipment, it discharges and recharges the features such as speed is fast, power density is high, long service life, it is particularly suitable in stored energy and recovery system, and this feature also can make up the energy storage problem of these new forms of energy of solar energy well.
Summary of the invention
The utility model object is to provide a kind of energy-storage system based on solar cell and bank of super capacitors, a kind of long service life is provided, is maintained as this locality, the new forms of energy energy-storage system of low weight.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of energy-storage system based on solar cell and bank of super capacitors, comprise solar panel, charging management system, bank of super capacitors and DC/DC buck converter, solar panel is connected with charging management system, charging management system is connected with bank of super capacitors again, the output of bank of super capacitors is connected with the input of DC/DC buck converter, solar panel becomes electric energy to send into bank of super capacitors by charging management system the transform light energy of collecting, electric energy in bank of super capacitors is sent into electrical appliance after the conversion of DC/DC buck converter.
For technique scheme, inventor also has further optimization embodiment.
As optimization; in bank of super capacitors, be provided with a plurality of electric capacity protective circuits; the voltage of each ultracapacitor in bank of super capacitors is delivered to switching tube through electric resistance partial pressure and is realized the break-make under fixed voltage; electric capacity protective circuit conducting while reaching fixed voltage; the output voltage of each ultracapacitor in bank of super capacitors is consistent, balance, and bank of super capacitors is normally transmitted electricity to DC/DC buck converter again.
As optimization, charging management system is monitored the charging current of solar panel and charging voltage, in the situation that not exceeding bank of super capacitors rated voltage, to bank of super capacitors, charges.
Further, the input of charging management system with can be connected by cell panel very much, the output of charging management system is connected with bank of super capacitors, the input of charging management system is provided with switching tube, the break-make of switching tube is controlled by the voltage comparator circuit in charging management system, voltage comparator circuit is real-time voltage and the rated voltage of bank of super capacitors relatively, when bank of super capacitors reaches rated voltage, an overvoltage signal of voltage comparator circuit output is to switching tube, the work of closing switch pipe, otherwise switching tube keeps UNICOM's state.
With respect to scheme of the prior art, the utility model has the advantages that:
The described energy-storage system based on solar cell and bank of super capacitors of the utility model, solar panel charges to bank of super capacitors by charging management system, charging management system is monitored in real time to charging current and charging voltage, prevents that bank of super capacitors from exceeding rated voltage.Super capacitor protection circuit is the real-time voltage of each super capacitor in regulating capacitor, keeps the balance of each condenser voltage in capacitor group with consistent.Simultaneously, DC/DC buck converter carries out step-down to bank of super capacitors, produce constant direct current output (+12V ,+5V), like this when having sunlight, solar panel by power storage in ultracapacitor, when night, by ultracapacitor, to DC/DC buck converter, powered, realize having and stablize uninterrupted DC power supply output energy-storage system, realize the effective utilization to new forms of energy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the entire block diagram of energy-storage system in the utility model embodiment;
Fig. 2 is the circuit theory diagrams of charging management system in the utility model embodiment;
Fig. 3 is the circuit theory diagrams of electric capacity protective circuit in the utility model embodiment.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for the present invention is described.The implementation condition adopting in embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
embodiment:
The present embodiment has been described a kind of energy-storage system based on solar cell and bank of super capacitors, comprise solar panel, charging management system, bank of super capacitors and DC/DC buck converter, as shown in Figure 1, solar panel is connected with charging management system, charging management system is connected with bank of super capacitors again, the output of bank of super capacitors is connected with the input of DC/DC buck converter, solar panel becomes electric energy to send into bank of super capacitors by charging management system the transform light energy of collecting, electric energy in bank of super capacitors is sent into electrical appliance after the conversion of DC/DC buck converter.
In the present embodiment, solar panel is comprised of two blocks of 670*540*30MM monocrystalline silicon battery plates, and operating voltage is 18V, and maximum output current is 5.6A, and peak power output is 100W.Monocrystalline silicon battery plate has higher conversion efficiency compared with polycrystal silicon cell plate, can reach 12%-16%, and has higher stability.Silicon photocell is a kind of semiconductor device that directly transform light energy is become to electric energy.Its structure is very simple, core is a large-area PN junction, and the point-contact diode of a transparent glass shell and a microammeter are connected into closed-loop path, when the tube core (PN junction) of diode is subject to illumination, just have electric current output, this phenomenon is called photovoltaic effect.The PN junction area of silicon photocell is more much bigger than the PN junction of diode, so the electromotive force producing while being subject to illumination and electric current are also much bigger.
The input of charging management system with can be connected by cell panel very much, the output of charging management system is connected with bank of super capacitors, charging management system is mainly the charging voltage of limited capacitor group, along with continuing of charging, the voltage at ultracapacitor two ends can increase, the input of charging management system is provided with switching tube, and the break-make of switching tube is controlled by the voltage comparator circuit in charging management system, and voltage comparator circuit is real-time voltage and the rated voltage of bank of super capacitors relatively.When the real-time voltage of bank of super capacitors reaches 20V and reaches rated voltage, an overvoltage signal of voltage comparator circuit output is to switching tube, the work of closing switch pipe, otherwise switching tube keeps UNICOM's state.
The partial circuit of charging management system control charging break-make as shown in Figure 2, + CAP_INOUT end is charging voltage input, is connected with solar panel, + CAP end and bank of super capacitors Xiang Even, before bank of super capacitors does not reach rated voltage charging process in, U18 and U19 are Daed Open
Bank of super capacitors charges normal, and when ultracapacitor reaches rated voltage, voltage comparator circuit can be exported an overvoltage signal/OVP, and U18 and U19 are closed, thus cut-out and bank of super capacitors and+path of CAP end.
In bank of super capacitors, be provided with a plurality of electric capacity protective circuits; the voltage of each ultracapacitor in bank of super capacitors is delivered to switching tube through electric resistance partial pressure and is realized the break-make under fixed voltage; electric capacity protective circuit conducting while reaching fixed voltage; the output voltage of each ultracapacitor in bank of super capacitors is consistent, balance, and bank of super capacitors is normally transmitted electricity to DC/DC buck converter again.
The schematic diagram of electric capacity protective circuit as shown in Figure 3, ultracapacitor voltage divides the R end that is sent to U5 through R28, R48, this partial pressure value is when 2.5V is following, the K end of U5 is equivalent to open circuit (leakage current of the 400uA that has an appointment) and on R27, does not substantially produce parasitic pressure drop, like this, by R27, R41, the dividing potential drop of R47 in Q3 base stage, not so that Q3 conducting, so not conducting of U6, circuit is in static (high resistant) state; Work as R28, when R48 dividing point equals 2.5V because Q3 inside is compared with the effect of amplifier.Make the K terminal voltage decline (more than can drawing electric current 100mA) of Q3 on R27, produce the pressure reduction that maximum is Uc-2V, at this moment the Uc of correspondence is 2.7V conventionally, makes Q3 conducting enter magnifying state.And drive U6 conducting to enter magnifying state, From and to the capable Electricity of putting of super Grade Electricity Rong Jin.The property class quasi-static of circuit is pressed diode characteristic, terminal voltage is limited in below " voltage stabilizing value " to a certain extent, has guaranteed that ultracapacitor can overvoltage when charging.
Above-mentioned example is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations that Spirit Essence is done according to the present invention or modification, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. the energy-storage system based on solar cell and bank of super capacitors, it is characterized in that, comprise solar panel, charging management system, bank of super capacitors and DC/DC buck converter, solar panel is connected with charging management system, charging management system is connected with bank of super capacitors again, the output of bank of super capacitors is connected with the input of DC/DC buck converter, solar panel becomes electric energy to send into bank of super capacitors by charging management system the transform light energy of collecting, electric energy in bank of super capacitors is sent into electrical appliance after the conversion of DC/DC buck converter.
2. a kind of energy-storage system based on solar cell and bank of super capacitors according to claim 1; it is characterized in that; in bank of super capacitors, be provided with a plurality of electric capacity protective circuits; the voltage of each ultracapacitor in bank of super capacitors is delivered to switching tube through electric resistance partial pressure and is realized the break-make under fixed voltage; electric capacity protective circuit conducting while reaching fixed voltage; the output voltage of each ultracapacitor in bank of super capacitors is consistent, balance, and bank of super capacitors is normally transmitted electricity to DC/DC buck converter again.
3. a kind of energy-storage system based on solar cell and bank of super capacitors according to claim 1, it is characterized in that, charging management system is monitored the charging current of solar panel and charging voltage, in the situation that not exceeding bank of super capacitors rated voltage, to bank of super capacitors, charges.
4. a kind of energy-storage system based on solar cell and bank of super capacitors according to claim 3, it is characterized in that, the input of charging management system with can be connected by cell panel very much, the output of charging management system is connected with bank of super capacitors, the input of charging management system is provided with switching tube, the break-make of switching tube is controlled by the voltage comparator circuit in charging management system, voltage comparator circuit is real-time voltage and the rated voltage of bank of super capacitors relatively, when bank of super capacitors reaches rated voltage, an overvoltage signal of voltage comparator circuit output is to switching tube, the work of closing switch pipe, otherwise switching tube keeps UNICOM's state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109551.7U CN203788053U (en) | 2014-03-12 | 2014-03-12 | Energy storage system based on solar cells and super capacitor sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109551.7U CN203788053U (en) | 2014-03-12 | 2014-03-12 | Energy storage system based on solar cells and super capacitor sets |
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| Publication Number | Publication Date |
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| CN203788053U true CN203788053U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420109551.7U Expired - Fee Related CN203788053U (en) | 2014-03-12 | 2014-03-12 | Energy storage system based on solar cells and super capacitor sets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958604A (en) * | 2016-06-29 | 2016-09-21 | 宁波高新区蜂鸟创熠科技有限公司 | Wireless battery charging device for pipeline detection device |
-
2014
- 2014-03-12 CN CN201420109551.7U patent/CN203788053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958604A (en) * | 2016-06-29 | 2016-09-21 | 宁波高新区蜂鸟创熠科技有限公司 | Wireless battery charging device for pipeline detection device |
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| 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: 20140820 Termination date: 20200312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |