CN101820187B - Solar power residual electric energy collecting circuit - Google Patents
Solar power residual electric energy collecting circuit Download PDFInfo
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- CN101820187B CN101820187B CN2010101107440A CN201010110744A CN101820187B CN 101820187 B CN101820187 B CN 101820187B CN 2010101107440 A CN2010101107440 A CN 2010101107440A CN 201010110744 A CN201010110744 A CN 201010110744A CN 101820187 B CN101820187 B CN 101820187B
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- circuit
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- residual electric
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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
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Abstract
The invention relates to a solar power residual electric energy collecting circuit. The solar power residual electric energy collecting circuit comprises a solar photovoltaic cell panel (1), a super-capacitor bank (2), a boosted circuit (3), a load or storage battery set (4) and a voltage comparison and control circuit (5), wherein the positive end of the solar photovoltaic cell panel (1) is connected with the common end of a relay K, while the negative end is connected with the negative end of a circuit residual electric energy collecting circuit; the relay K is used for converting a circuit working turntable; the super-capacitor bank (2) is connected with the normally closed contact of the relay K; the boosted circuit (3) is connected with the super-capacitor bank (2), a capacitor C and the voltage comparison and control circuit (5) respectively; the voltage comparison and control circuit (5) controls the boosted circuit (3) to collect the residual electric energy which is emitted by the solar photovoltaic cell panel (1) and is collected by the super-capacitor bank (2) to the capacitor C; and the load or storage battery set (4) is connected with a pulse-width modulation (PWM) control circuit and collects the electric energy in the capacitor C to the storage battery through the PWM control circuit or uses the electric energy for loading. The solar power residual electric energy collecting circuit has the advantages of realizing the circuit collection of the residual electric energy and improving solar efficiency.
Description
Technical field
The present invention relates to the solar power residual electric energy collecting technology, also relate to voltage ratio and control circuit, particularly with farad capacitor when the solar photovoltaic cell panel output voltage is lower than capacitance voltage, to the collection of solar-energy photo-voltaic cell residual circuitry.
Technical background
Along with the anxiety of global energy, solar cell obtains extensive studies and development.The electric energy that solar-energy photo-voltaic cell sends when low-light (level) can not be used, and must electric energy be collected through the solar power residual electric energy collecting technology.
All the time, solar photovoltaic technology exists invests big, the low reasons such as (rate of recovery are generally below 20%) of generating efficiency, causes cost of electricity-generating high.The proposition of patent art just is being based on above reason, and its cardinal principle is, when the solar cell normal power generation, and the electricity collection of employing technology, and when low-light (level), adopt patent art, the residual electric energy of the electric energy that solar cell is sent reclaims.The present invention can improve the generating efficiency of solar energy power generating on the basis of existing equipment, reduce its cost of electricity-generating.
Summary of the invention
For solving the weak point of above-mentioned prior art, the present invention proposes a kind of solar power residual electric energy collecting circuit, the residual electric energy of solar cell output was collected when these innovation and creation were can be to light intensity more weak.
Realize that solar power residual electric energy collecting technical scheme principle of the present invention is: 1. during solar photovoltaic cell panel (1) operate as normal; It is closed that voltage ratio reaches control circuit (5) control switch K; Solar photovoltaic cell panel (1) output electric energy is through switch relay K, and the Q in isolating diode D and the pwm circuit is to electric or to battery charging; 2. when light intensity is more weak; Capacitor C voltage is higher than solar photovoltaic cell panel (1) output voltage; Voltage ratio reaches control circuit (5) control switch K and breaks off, and super capacitor group (2) inserts solar photovoltaic cell panel (1), and the residual electric energy of solar photovoltaic cell panel (1) is collected; When super capacitor group (2) voltage is elevated to solar photovoltaic cell panel (1) voltage; Voltage ratio reaches control circuit (5) and starts Boost booster circuit (3), and the electric energy that super capacitor group (2) is collected is collected, and improves the generating efficiency of solar photovoltaic cell panel (1).
In order to realize the present invention; The technical scheme that adopts is: a kind of solar power residual electric energy collecting circuit comprises relay K anodal in the connecting circuit; Be connected in relay K (normally-closed contact) and circuit negative pole super capacitor group (2); Be connected between super capacitor group (2) negative pole Boost booster circuit (3) and voltage ratio and control circuit (5) and the diode D that is used to isolate, said circuit also comprises:
Described solar photovoltaic cell panel (1) anode connects the common port of relay K, and negative terminal is connected in the negative terminal of circuit residual electric energy collecting circuit, and relay switch K is used for the conversion of circuit working turntable;
(normally-closed contact) that described super capacitor group (2) is connected to relay K is used for the collection of the residual electric energy that solar photovoltaic cell panel (1) sends;
Described Boost booster circuit (3) is connected to super capacitor group (2), capacitor C and voltage ratio and reaches control circuit (5); Voltage ratio is than reaching control circuit (5) control Boost booster circuit (3), and the residual electric energy collecting that the solar photovoltaic cell panel of collecting in the super capacitor group (2) (1) is sent arrives capacitor C;
Described load or batteries (4) are connected in pwm control circuit, through pwm control circuit with the electricity collection in the capacitor C in storage battery, or be used for load;
Described voltage ratio reaches control circuit (5) and is connected in super capacitor group (2); Capacitor C, Boost booster circuit (3) and relay K; When voltage ratio and control circuit (5) output voltage that detects solar photovoltaic cell panel (1) when being lower than the voltage of capacitor C, relay K is broken off, the normally-closed contact of relay K is closed; The residual electric energy that solar photovoltaic cell panel (1) sends flows into super capacitor group (2) through relay (normally-closed contact) K, realizes the collection to residual electric energy; Super capacitor group (2) voltage will raise in the process of electricity collection; When super capacitor group (2) when voltage is elevated to set point; Voltage ratio and control circuit (5) start Boost booster circuit (3), the electricity collection that super capacitor is collected realizes that the circuit of residual electric energy is collected in capacitor C.
Above-mentioned described super capacitor group (2) comprises the super capacitor more than at least; Combination through series, parallel is connected between (normally-closed contact) back and solar photovoltaic cell panel (1) negative terminal of relay K, and the capacitance voltage of access is higher than solar photovoltaic cell panel (1) voltage.
Above-mentioned described voltage ratio reaches control circuit (5) control circuit and comprises two-way voltage comparator circuit (6) (7), and wherein voltage comparator circuit (6) is connected in solar-energy photo-voltaic cell group and capacitor C; Comparison circuit (7) is connected in super capacitor group (2) and sets end with voltage, and the drive circuit input is connected in the input of voltage comparator circuit (6) (7), and output is connected in relay K coil and Boost booster circuit (3).
Above-mentioned described driving and control circuit (8) comprise relay drive circuit, the drive circuit of Boost booster circuit.
The anodal common port that connects relay K of above-mentioned described circuit input end is connected in solar photovoltaic cell panel (1) through relay K and isolating diode D.
Above-mentioned described switching device relay K comprises that GTR, metal-oxide-semiconductor, IGBT, relay etc. are used for a kind of element of the device of switch switching.
Its superiority of the present invention is: on the basis of existing equipment, improve the generating efficiency of solar energy recurrence electricity, reduce its cost of electricity-generating.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is Boost booster circuit figure of the present invention;
Fig. 3 is that voltage ratio of the present invention reaches control circuit figure.
Embodiment
Be elaborated below in conjunction with accompanying drawing
Like the common port of Fig. 1 solar photovoltaic cell panel (1) anode connection relay K, negative terminal is connected in the negative terminal of circuit residual electric energy collecting circuit; Relay K (normally opened contact) is connected in isolating diode D; Relay (normally-closed contact) K is connected in super capacitor group (2); Relay K is used for the diverter switch of residual electric energy collecting circuit, and during solar photovoltaic cell panel (1) normal power generation, relay K is closed; Electric energy is through relay K, and isolating diode D delivers to capacitor C; And when solar photovoltaic cell panel (1) non-normal working (voltage is lower than capacitor C); Relay K is broken off; The residual electric energy that solar photovoltaic cell panel (1) sends is collected by super capacitor group (2) through (normally-closed contact) relay K switch, and super capacitor group (2) is connected in Boost booster circuit (3) and voltage ratio reaches control circuit (5); When voltage ratio and after control circuit (5) is elevated to set point to super capacitor group (2) voltage; Voltage ratio reaches control circuit (5) and starts Boost booster circuit (3), and the electric energy of collecting in the super capacitor group (2) is delivered to capacitor C, realizes the collection of residual electric energy.
Described voltage ratio reaches control circuit (5) through detecting capacitor C voltage and solar photovoltaic cell panel (1) input voltage, confirms the on off state of relay switch K; When capacitor C voltage is lower than the output voltage of solar photovoltaic cell panel (1), voltage ratio and control circuit (5) control switch relay K closed, the electric energy that solar photovoltaic cell panel (1) sends, relay switch K, isolating diode D, charge to capacitor C; When capacitor C voltage is higher than the output voltage of solar photovoltaic cell panel (1); Voltage ratio reaches control circuit (5) control relay K switch and breaks off; The residual electric energy that solar photovoltaic cell panel (1) sends is collected by super capacitor group (2), in the residual electric energy collecting process through (normally-closed contact) relay switch K; Super capacitor group (2) voltage raises; When voltage reached set point, voltage ratio reached control circuit (5) and starts Boost booster circuit (3), and the electric energy in the super capacitor group (2) is dumped to capacitor C.When Boost booster circuit (3) carries out electricity collection, super capacitor group (2) voltage will descend, and when voltage drops to set point, Boost booster circuit (3) will quit work, and super capacitor gets into the electricity collection stage again.Going round and beginning again of above process realized the collection of solar energy residual electric energy.Above realization process is to reach control circuit (5) by voltage ratio to realize.
The described Boost booster circuit of Fig. 2 (3) is to reach control circuit (5) control by voltage ratio; When voltage ratio and after control circuit (5) detects capacitor C voltage and be higher than solar photovoltaic cell panel (1) output voltage and super capacitor group (2) voltage and be elevated to set point, voltage ratio and control circuit (5) start Boost booster circuit (3).When switching tube Q conducting, the energy storing in the bank of super capacitors (2) is in boost inductance L; When switching tube Q turn-offs, boost inductance L will produce high pressure, through isolating diode D, with electricity collection in capacitor C.
The described voltage ratio of Fig. 3 reaches control circuit (5) output voltage of solar-electricity photovoltaic battery panel (1) and the voltage in the capacitor C is compared.When the output voltage of solar photovoltaic cell panel (1) is higher than capacitor C voltage, drive and control circuit drives the relay K adhesive; When the output voltage of solar photovoltaic cell panel (1) is lower than capacitor C voltage; Driving and control circuit break off relay K; And the voltage of detection super capacitor group (2); When super capacitor group (2) when voltage is higher than set point, start Boost booster circuit (3), with the electricity collection in the super capacitor group (2).In the electricity collection process; Super capacitor group (2) voltage will descend, and after super capacitor group (2) voltage dropped to another set point, voltage ratio reached control circuit (5) and stops Boost booster circuit (3) work; Be beneficial to super capacitor group (2) and once collecting the residual electric energy that solar photovoltaic cell panel (1) sends; Super capacitor group (2) voltage will raise once more, and so circulation realizes the collection of solar energy residual electric energy.
Claims (5)
1. solar power residual electric energy collecting circuit; Comprise and connect the anodal relay K of solar power residual electric energy collecting circuit; Be connected in the super capacitor group (2) of the normally-closed contact and the solar power residual electric energy collecting circuit negative pole of relay K; Be connected in the Boost booster circuit (3) between super capacitor group (2) positive pole and the capacitor C positive pole; Voltage ratio reaches control circuit (5), and the normally opened contact and the anodal isolating diode D of capacitor C that are connected in relay K, it is characterized in that said circuit also comprises:
Solar photovoltaic cell panel (1), the anode of described solar photovoltaic cell panel (1) connects the common port of relay K, and negative terminal is connected in the negative pole of solar power residual electric energy collecting circuit, and relay K is used for the circuit working state conversion;
Described super capacitor group (2) is connected to the normally-closed contact of relay K, is used for the collection of the residual electric energy that solar photovoltaic cell panel (1) sends;
Described Boost booster circuit (3) is connected to super capacitor group (2); Capacitor C and voltage ratio reach control circuit (5); Voltage ratio is than reaching control circuit (5) control Boost booster circuit (3), and the residual electric energy collecting that the solar photovoltaic cell panel of collecting in the super capacitor group (2) (1) is sent arrives capacitor C;
Load or batteries, described load or batteries (4) are connected in pwm control circuit, through pwm control circuit with the electricity collection in the capacitor C in storage battery, or be used for load;
Described voltage ratio reaches control circuit (5) and is connected in super capacitor group (2), capacitor C; Boost booster circuit (3) and relay K; When voltage ratio and control circuit (5) output voltage that detects solar photovoltaic cell panel (1) when being lower than the voltage of capacitor C, relay K is broken off, the normally-closed contact of relay K is closed; The residual electric energy that solar photovoltaic cell panel (1) sends flows into super capacitor group (2) through relay normally-closed contact K, realizes the collection to residual electric energy; Super capacitor group (2) voltage will raise in the process of electricity collection; When super capacitor group (2) when voltage is elevated to set point; Voltage ratio and control circuit (5) start Boost booster circuit (3), the electricity collection that super capacitor is collected realizes the collection of residual electric energy in capacitor C.
2. solar power residual electric energy collecting circuit according to claim 1; It is characterized in that described super capacitor group (2) comprises the super capacitor more than at least; Combination through serial or parallel connection is connected between the normally-closed contact and solar photovoltaic cell panel (1) negative terminal of relay K, and the super capacitor group voltage of access is higher than solar photovoltaic cell panel (1) voltage.
3. solar power residual electric energy collecting circuit according to claim 1; It is characterized in that described voltage ratio reaches control circuit (5) and comprises first voltage comparator circuit (6), second voltage comparator circuit (7) and driving and control circuit (8), wherein the input of first voltage comparator circuit (6) is connected in solar photovoltaic cell panel (1) and capacitor C; Second voltage comparator circuit (7) input is connected in a super capacitor group (2) and a comparing voltage value; Driving and control circuit (8) input are connected in the output of first voltage comparator circuit (6) and second voltage comparator circuit (7), and output is connected in relay K and Boost booster circuit (3).
4. solar power residual electric energy collecting circuit according to claim 3 is characterized in that described driving and control circuit (8) also comprise the drive circuit of relay K, the drive circuit of Boost booster circuit.
5. solar power residual electric energy collecting circuit according to claim 1 is characterized in that the anode of said solar photovoltaic cell panel (1) connects the common port of relay K, is connected in the capacitor C positive pole through relay K and isolating diode D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101107440A CN101820187B (en) | 2010-01-26 | 2010-01-26 | Solar power residual electric energy collecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101107440A CN101820187B (en) | 2010-01-26 | 2010-01-26 | Solar power residual electric energy collecting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101820187A CN101820187A (en) | 2010-09-01 |
| CN101820187B true CN101820187B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101107440A Expired - Fee Related CN101820187B (en) | 2010-01-26 | 2010-01-26 | Solar power residual electric energy collecting circuit |
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| CN (1) | CN101820187B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951190B (en) * | 2010-09-08 | 2012-10-24 | 文创太阳能(福建)科技有限公司 | Photovoltaic module capable of being electrically isolated |
| CN103701157A (en) * | 2013-09-04 | 2014-04-02 | 深圳市康奈可科技有限公司 | Solar power supply system for storing electricity by adopting super-capacitor |
| CN110474413A (en) * | 2019-08-22 | 2019-11-19 | 浙江省交通运输科学研究院 | One kind building the energy storage of highway solar energy composite and conversion equipment |
| CN111403236B (en) * | 2020-03-17 | 2022-07-22 | 厦门华联电子股份有限公司 | Relay control circuit and relay |
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2010
- 2010-01-26 CN CN2010101107440A patent/CN101820187B/en not_active Expired - Fee Related
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| CN101820187A (en) | 2010-09-01 |
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