CN108233520A - A kind of photovoltaic generation electric storage device - Google Patents

A kind of photovoltaic generation electric storage device Download PDF

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Publication number
CN108233520A
CN108233520A CN201810135434.0A CN201810135434A CN108233520A CN 108233520 A CN108233520 A CN 108233520A CN 201810135434 A CN201810135434 A CN 201810135434A CN 108233520 A CN108233520 A CN 108233520A
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CN
China
Prior art keywords
circuit
electric storage
storage device
photovoltaic generation
battery
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.)
Pending
Application number
CN201810135434.0A
Other languages
Chinese (zh)
Inventor
王海涛
黄玲
吴晓凤
刘航
李昌坤
罗勇
刘卫强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Park Energy Storage Technology Co Ltd
Shenzhen Pandpower Co Ltd
Original Assignee
Shenzhen Park Energy Storage Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Park Energy Storage Technology Co Ltd filed Critical Shenzhen Park Energy Storage Technology Co Ltd
Priority to CN201810135434.0A priority Critical patent/CN108233520A/en
Publication of CN108233520A publication Critical patent/CN108233520A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582Buck-boost converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a kind of photovoltaic generation electric storage devices, the photovoltaic generation electric storage device includes solar cell module, single battery, Buck circuits, Boost circuit, battery protecting circuit, for detecting whether there is the detection circuit of sunlight, controller, signal conditioning circuit and display unit, the output terminal of the solar cell module is connect with the input terminal of the Buck circuits, on the one hand the output terminal of the Buck circuits is connect by the battery protecting circuit with the single battery, still further aspect is connect by the Boost circuit with the display unit, the signal conditioning circuit and the Buck circuits, Boost circuit, battery protecting circuit, controller, detection circuit is electrically connected.Photovoltaic generation electric storage device using the present invention can improve the service life that circulating battery uses, simultaneously but also the device can use the 18V solar cell modules of standard, in addition the constant current driving of Boost circuit is integrated, the configuration of the driving circuit of display unit can be reduced, so as to reduce the cost of photovoltaic generation electric storage device.

Description

A kind of photovoltaic generation electric storage device
Technical field
The present invention relates to photovoltaic generation storing up electricity field more particularly to a kind of photovoltaic generation electric storage devices of single battery.
Background technology
Solar power generation is a kind of clean energy resource, but photovoltaic generation has time restriction, needs to increase battery energy storage, just It is used in staggering the time.Small-sized solar energy storage system is mostly used for the energy supply of street lamp, non-Electric region at present, and solving no alternating current should The problem of with the power generation under scene and storing up electricity.Early stage in the market using lead-acid battery energy storage mode it is more, but lead-acid battery because The shortcomings that it is not environmentally, short life and maintenance cost are high is gradually substituted by lithium battery.
Low profile photovoltaic lithium battery integrated power generation electric storage device in the market a kind of common scheme be using 18V photovoltaic panels, 4 series lithium battery energy storage are accessed by photovoltaic controller and battery management system, then exports the 12V constant voltage sources of constant pressure and is given to LED Lamp cap.Due to being connected using multiple single batteries, because temperature is inconsistent, portfolio effect is bad, capacity after leading to battery in groups Attenuation ratio is very fast, and battery life is more much lower than the single battery service life, and due to going here and there more after, voltage is higher, in certain visitor In the case that family is for electricity demanding, low capacity single battery can only be selected, battery cost is higher.
Invention content
Based on this, to solve the above-mentioned technical problem in traditional technology, spy proposes a kind of photovoltaic generation electric storage device.
A kind of photovoltaic generation electric storage device, including solar cell module, single battery, charge-discharge control circuit, with And for detecting whether there is the detection circuit of sunlight, the solar cell module, single battery and detection circuit with The charge-discharge control circuit electrical connection.
Further, the charge-discharge control circuit includes Buck circuits, Boost circuit, the input of the Buck circuits End is connect with the solar cell module, and the Boost circuit is electrically connected to output terminal and the load of the Buck circuits Between;
Further, the charge-discharge control circuit further includes battery protecting circuit, the battery protecting circuit electrical connection Between the output terminal and the single battery of the Buck circuits.
Further, the charge-discharge control circuit further includes controller, signal conditioning circuit, the signal conditioning circuit It is electrically connected with the controller, Buck circuits, Boost circuit, battery protecting circuit and detection circuit, the signal condition electricity Road between the controller and the Buck circuits, Boost circuit, battery protecting circuit, detection circuit signal into Row acquisition, conversion and transmission.
Further, the Buck circuits include first switch circuit, second switch circuit, the first inductance, the one or two pole Pipe, the first capacitance, the first switch circuit are connected with the second switch circuit, first inductance and first capacitance Parallel branch is formed with first diodes in parallel after series connection, the parallel branch is connected in series with second switch circuit.
Further, the battery protecting circuit includes third switching circuit, the 4th switching circuit and overcurrent protector Part, the over-current protection device, third switching circuit, the 4th switching circuit are sequentially connected in series anode and Buck in single battery Between the output terminal of circuit.
Further, the Boost circuit includes the second inductance, the 5th switching circuit, the 6th switching circuit, the second capacitance And first resistor, the 6th switching circuit is in parallel with the 5th switching circuit after connecting with the second capacitance to form branch in parallel Road, the parallel branch are serially connected between the second inductance and first resistor.
Further, the charge-discharge control circuit further includes telecommunication circuit, and the controller passes through the telecommunication circuit Monitoring information is sent to other-end equipment.
Further, the single battery is large-capacity single battery or super capacitor.
Further, the load is LED light.
Photovoltaic generation electric storage device using the present invention improves the service life of battery using large-capacity single battery, and can Directly to use the 18V solar cell modules of standard, design is driven by the constant current for integrating Boost circuit, it is possible to reduce LED The driving circuit of lamp, so as to reduce the design cost of solar energy power generating electric storage device.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with Other attached drawings are obtained according to these attached drawings.
Wherein:
Fig. 1 is the photovoltaic generation electric storage device structure diagram of single battery;
Fig. 2 is the structure diagram of charge-discharge control circuit;
Fig. 3 is the structure diagram of Buck circuits;
Fig. 4 is the structure diagram of battery protecting circuit;
Fig. 5 is the structure diagram of Boost circuit;
Fig. 6 is the structure diagram of the alternative of the MOS switch circuit of the present invention;
Fig. 7 is the circuit diagram of Buck circuits of the invention, Boost circuit, battery protecting circuit
Wherein, (1)-solar cell module, (2)-charge-discharge control circuit, (3)-single battery, (4)-display unit, (5)-detection circuit, (6)-signal conditioning circuit, (7)-Buck circuits, (8)-controller, (9)-battery protecting circuit, (10)- Boost circuit, (11)-telecommunication circuit, the anode output of P+- solar cell modules, the negative terminal of P-- solar cell modules are defeated Go out, the anode output of Vbus+-Buck circuits, the negative terminal output of Vbus--Buck circuits, the anode of Vled+-Boost circuits is defeated Go out, the negative terminal output of Vled--Boost circuits, S1- first switch circuits, S2- second switch circuits, the first inductance of L1-, C1- First capacitance, the first diodes of D1-, S3- third switching circuits, the 4th switching circuits of S4-, F1- over-current protection devices, L2- Two inductance, the 5th switching circuits of S5-, the 6th switching circuits of S6-, the second capacitances of C2-, R1- first resistors, S7- mechano-electronics are opened It closes, the second diodes of D2-.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.
Photovoltaic generation electric storage device structure diagram for the present invention as shown in Figure 1.The photovoltaic generation electric storage device of the present invention Including solar cell module (1), charge-discharge control circuit (2), single battery (3), for detecting whether there is the inspection of sunlight Slowdown monitoring circuit (5) and display unit (4), the solar cell module (1) and the input terminal of the charge-discharge control circuit (2) Connection, the output terminal of the charge-discharge control circuit (2) are connect with the display unit (4), the single battery (3) and institute Detection circuit (5) is stated to be electrically connected with the charge-discharge control circuit (2).
Daytime, the solar cell module (1) converted the solar into battery power, charge and discharge when shining upon Control circuit (2) controls solar cell module (1) to the single battery according to the detection information of the detection circuit (5) (3) it charges, the discharge loop of the charge-discharge control circuit (2) does not work in addition, so that the display unit (4) not work Make;When not having sunlight irradiation at night, the charge-discharge control circuit (2) is according to the detection informations of the detection circuit (5) The single battery (3) is controlled to power to the display unit (4), display unit (4) work.
Specifically, the single battery (3) can be high-capacity unit lithium battery or super capacitor.
Specifically, the detection circuit (5) can be the circuit of light-operated switch and photosensitive sensor composition, described light-operated to open Close by photosensitive sensor by optical signal transfer for electric signal so as to be sent to charge-discharge control circuit (2);It can also be detection The input voltage of solar cell module and the circuit judged more specifically, a threshold value can be set, have sunlight daytime Irradiation, the output voltage of solar cell module (1) are more than threshold value, are irradiated at night without sunlight, solar cell module (1) Output voltage be less than threshold value, it is aobvious so as to be controlled by the relationship of the output voltage of solar cell module (1) and threshold value Show the light on and off of component (4).
Specifically, the display unit (4) can be the common illuminator such as LED light, fluorescent lamp.
By the present invention in that with above-mentioned single battery (3) so that the cycle life of battery can reach capacity, so as to Reduce the cost of photovoltaic generation electric storage device.
As Fig. 2 be charge-discharge control circuit structure diagram, as shown in the figure, the charge-discharge control circuit (2) includes Buck circuits (7), Boost circuit (10), battery protecting circuit (9), signal conditioning circuit (6), controller (8) and communication electricity Road (11), the input terminal of the Buck circuits (7) are connect with the solar cell module (1), the Buck circuits (7) it is defeated On the one hand outlet is connect by the battery protecting circuit (9) with the single battery (3), still further aspect passes through described Boost circuit (10) is connect with the display unit (4), the signal conditioning circuit (6) respectively with the Buck circuits (7), Boost circuit (10), battery protecting circuit (9), controller (8), detection circuit (5), telecommunication circuit (11) electrical connection.
The signal conditioning circuit (6) is for controller (8) and Buck circuits (7), Boost circuit (10), battery guarantor Signal between protection circuit (9), detection circuit (5), telecommunication circuit (11) is acquired, converts and transmits, the signal tune Reason circuit (6) includes AD converter, interface circuit, driving circuit etc..
The output of the solar cell module (1) is P+, P-, the output of the Buck circuits (7) is Vbus+, Vbus-, the output of the Boost circuit (10) are Vled+, Vled-, the output of the single battery (3) is Vbat+, Vbat-。
When there is illumination on daytime, solar cell module (1) converts light energy into electric energy, automatically controlled by P+/P- access charge and discharges Buck circuits (7) in circuit (2) processed, the input voltage of Buck circuits (7) acquisition solar cell module (1), are inputted Constant voltage controls, and Buck circuits (7) export Vbus+/Vbus- by single battery (3) clamp voltage, are fitted by the variation of electric current Changed power with solar cell module.The output voltage Vbus+/Vbus- of the Buck circuits (7) is using battery protection Circuit (9) is connected to single battery (3), realizes the charging of single battery (3);After battery is full of, controller (8) sends phase The instruction answered closes Buck circuits (7) by signal conditioning circuit (6), stops charging.Light-operated switch will by photosensitive sensor Optical signal transfer is electric signal, then accesses signal conditioning circuit (6), and signal is after conditioning, access controller (8), control Device (8) processed closes Boost circuit (10) according to optically-controlled signal, and display unit (4) does not work.
During night no light, controller (8) receives light-operated switch effectively light-operated conditioned signal, sends instructions and starts Boost Circuit (10), the single battery (3) are powered to the Boost circuit (10), Boost circuit (10) output 12V power supplys, driving Display unit (4) works.
In addition, charge-discharge control circuit (2) also sends monitoring information to monitoring device by telecommunication circuit (11), for adjusting Examination and on-site maintenance.Specifically, whether the monitoring information letters such as damages, whether needs replacing including the single battery (3) Breath, the monitoring device can be specifically the various terminals such as computer, mobile phone or LCD display.
The structure diagram of the Buck circuits (7) of the present invention is illustrated in figure 3, it can be seen from the figure that the Buck circuits (7) it is described including first switch circuit S1, second switch circuit S2, the first inductance L1, the first capacitance C1, the first diode D1 The source electrode of first switch circuit S1 is connect with the anode output P+ of the solar cell module (1), the first switch circuit The drain electrode of S1 is connect with the drain electrode of the second switch circuit S2, and the source electrode of the second switch circuit S2 is on the one hand electric with first Feel one end connection of L1, on the other hand the cathode with the first diode D1 is connect, the other end of the first sensor L1 and the One end connection of one capacitance C1, the anode of the first diode D1 and the other end of the first capacitance are and solar cell The negative terminal of component (1) exports P- with being connected and connect to circuit reference, the first switch circuit S1 and second switch circuit Output terminal of the grid of S2 with the signal conditioning circuit (6) electrically connects.Buck circuits (7) are worked with pulse width modulation mode, As first switch circuit S1 and second switch circuit S2 in the conduction state, the solar cell module (1) is to described One inductance L1 charges;When the first switch circuit S1 and the second switch circuit S2 are in cut-off state, described first Inductance L1, the first capacitance C1 and the first diode D1 form access, the first inductance L1 electric discharges, the first capacitance C1 chargings.Institute Controller (8) is stated by controlling the make-and-break time of the first switch circuit S1 and the second switch circuit S2, so as to adjust The variation of electric current adapts to the variation of the output power of solar cell module (1), when the output power increase of solar energy, then institute Stating controller (8) controls the turn-on time of the first switch circuit S1 and second switch circuit S2 to increase, so that Electric current increases, power increase;Conversely, when the output power of solar cell module (1) reduces, controller (8) control The turn-on time of the first switch circuit S1 and the second switch circuit S2 shorten, so that electric current reduces, power subtracts It is small.During by the on and off of the first switch circuit S1 and the second switch circuit S2 that control the Buck circuits (7) Between, it is adapted to the variation of the output power of solar cell module (1) so as to increase or reduce the electric current of Buck circuits (7), because And can so that the 18V solar cell modules of standard may be used in the solar cell module (1), reduce supporting industries Difficulty and solar cell module (1) cost.
The structure diagram of the battery protecting circuit (9) of the present invention is illustrated in figure 4, it can be seen from the figure that the battery Protection circuit (9) includes third switching circuit S3, the 4th switching circuit S4 and over-current protection device F1, the third switching circuit The anode output Vbus+ of the source electrode of S3 and the Buck circuits (7) connect, the drain electrode of the third switching circuit S3 and described the The drain electrode connection of four switching circuit S4, the source electrode of the 4th switching circuit S4 connect with one end of the over-current protection device F1 It connects, the other end of the over-current protection device F1 is connect with the anode of the single battery (3), and the single battery (3) is born Pole is connect, and with being connected to circuit reference with the negative terminal output Vbus- of the Buck circuits (7).The third switching circuit S3 It is electrically connected with the output terminal of the grid of the 4th switching circuit S4 with the signal conditioning circuit (6).The controller (8) The on and off shape of the third switching circuit S3 and the 4th switching circuit S4 are controlled by signal conditioning circuit (6) State is so as to fulfill protection of the single battery (3) to the power supply of the display unit (4) and to the single battery (3).Work as night There is no solar irradiation, the single battery (3) is powered to the display unit (4), and the controller (8) controls the third to open The state that powered-down road S3 and the 4th switching circuit S4 are on, the single battery (3) give the Boost circuit (10) Power supply, so as to drive LED light bright.When signal conditioning circuit (6) detects the single battery (3) in over-pressed, under-voltage, high When temperature, low temperature, overcurrent or the situation of short circuit, the controller (8) sends corresponding instruction and is disconnected by signal conditioning circuit (6) The third switching circuit S3 and the 4th switching circuit S4 of the battery protecting circuit (9), thus by the confession of single battery (3) Circuit disconnects, protection single battery (3).
Specifically, the third switching circuit S3 can be P-channel metal-oxide-semiconductor or N-channel MOS pipe.
Specifically, the over-current protection device F1 can be fuse.
Fig. 5 is the structure diagram of the Boost circuit (10) of the present invention, as shown in the figure, the Boost circuit (10) includes the Two inductance L2, the 5th switching circuit S5, the 6th switching circuit S6, the second capacitance C2 and first resistor R1, second inductance One end of L2 is connect with the one end of the battery protecting circuit (9), the other end of the second inductance L2 on the one hand with it is described The source electrode connection of 6th switching circuit S6, still further aspect are connect with the drain electrode of the 5th switching circuit S5, and the described 5th opens The source electrode of powered-down road S5 is connect with one end of the first resistor R1, drain electrode and the second capacitance C2 of the 6th switching circuit S6 One end connection, the other end of the second capacitance C2 and one end of the first resistor R1 link, and the first resistor R1 is in addition The negative pole end of one end and the single battery (3) is with being connected and connect to circuit reference.
Specifically, the resistance value of the first resistor R1 is usually smaller, is the milliohm order of magnitude, usually 10-20 milliohms.It is described First resistor R1 can also be other current sensing devices, can be Hall sensor, current transformer etc. specifically.
For Boost circuit (10) tool of the present invention there are two types of control mode, one kind is acquisition output voltage and electric current, and control is permanent Pressure, limit power output, 12V constant voltages are provided to display unit control panel.Another kind is acquisition output voltage and electric current, is controlled Constant current limits power output, saves the driver of display unit.
Fig. 6 is the structure diagram of another alternative of the switch metal-oxide-semiconductor circuit of the present invention, can from Fig. 6 Go out, the switching circuit of battery protecting circuit (9) can be such as the switch metal-oxide-semiconductor in Fig. 4 or by mechanical electronic beam switch S7 The switching circuit of the second diode D2 of parallel connection compositions.
Fig. 7 is the circuit diagram of Buck circuits of the invention, Boost circuit, battery protecting circuit, as shown in the figure, daytime works as When having sunlight irradiation, the output terminal P+ and P- of the solar cell module input to the input terminal of Buck circuits (7), described Detection circuit (5) has detected whether sunlight and detection information is sent to controller (8), and the controller (8) is by described Signal conditioning circuit (6) controls the first switch circuit S1 and second switch circuit S2 to be in pulse width modulation mode work, the Three switching circuit S3 and the 4th switching circuit S4 are in the conduction state, Buck circuits (7) the acquisition input solar battery group The voltage of part (1), carries out input constant voltage control, and Buck circuits (7) export Vbus+/Vbus- by single battery (3) clamper Voltage, the controller (8) are controlled by controlling the make-and-break time of the first switch S1 pipes and the second switch S2 pipes The variation of electric current, so as to be adapted to the changed power of solar cell module, the output of the Buck circuits (7) is protected using battery Protection circuit (9) is connected to the single battery (3), so as to fulfill too can battery give single battery (3) charging;Work as single battery (3) full of later, controller (8) sends instruction, closes Buck circuits (7) by signal conditioning circuit (6), stops charging.Institute State controller (8) also according to the detection circuit (5) detection information by the signal conditioning circuit control Boost whether work Make, so as to control the light on and off of LED light.When there is no sunlight irradiation at night, the detection circuit (5) by detect sunlight or Person detects the output voltage of solar cell module, so as to which the detection information is sent to controller (8), the controller (8) Order is sent, the third switching circuit S3 and the 4th switching circuit S4 is controlled to be on shape by signal conditioning circuit (6) State, the 5th switching circuit S5 and the 6th switching circuit S6 are in the pulse width modulation mode work of staggeredly complementation, the Boost circuit (10) output voltage and electric current of the single battery (3) are acquired, the controller (8) controls the Boost circuit (10) real Existing constant pressure or constant current limit power output, power so as to fulfill the single battery (3) to the display unit (4).
The photovoltaic generation electric storage device of the present invention, has advantages below:
1st, using large-capacity single battery, circulating battery service life is improved, so as to cost-effective;
2nd, the use of Buck circuits can use the 18V solar cell modules of standard, reduce supporting industries difficulty and too The cost of positive energy battery component;
3rd, Boost constant currents driving is integrated, the repetition configuration of the driver in display unit can be reduced, reduce cost.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent variations made according to the claims of the present invention, is still within the scope of the present invention.

Claims (10)

1. a kind of photovoltaic generation electric storage device, including solar cell module, single battery, charge-discharge control circuit and For detecting whether there is the detection circuit of sunlight, the solar cell module, single battery and detection circuit are and institute State charge-discharge control circuit electrical connection.
2. a kind of photovoltaic generation electric storage device as described in claim 1, it is characterised in that:The charge-discharge control circuit includes Buck circuits, Boost circuit, the input terminal of the Buck circuits are connect with the solar cell module, the Boost circuit It is electrically connected between output terminal and the load of the Buck circuits.
3. a kind of photovoltaic generation electric storage device as claimed in claim 2, it is characterised in that:The charge-discharge control circuit also wraps Include battery protecting circuit, the battery protecting circuit be electrically connected to the Buck circuits output terminal and the single battery it Between.
4. a kind of photovoltaic generation electric storage device as claimed in claim 3, it is characterised in that:The charge-discharge control circuit also wraps Controller, signal conditioning circuit are included, the signal conditioning circuit is protected with the controller, Buck circuits, Boost circuit, battery Protection circuit and detection circuit electrical connection, the signal conditioning circuit are used for the controller and the Buck circuits, Boost Signal between circuit, battery protecting circuit, detection circuit is acquired, converts and transmits.
5. a kind of photovoltaic generation electric storage device as claimed in claim 3, it is characterised in that:The Buck circuits are opened including first Powered-down road, second switch circuit, the first inductance, the first diode, the first capacitance, the first switch circuit are opened with described second Parallel branch is formed with first diodes in parallel after powered-down road series connection, first inductance and first capacitance series connection, The parallel branch is connected in series with the second switch circuit.
6. a kind of photovoltaic generation electric storage device as claimed in claim 4, it is characterised in that:The battery protecting circuit includes the Three switching circuits, the 4th switching circuit and over-current protection device, the over-current protection device, the 4th switching circuit, third are opened Powered-down road is sequentially connected in series between the anode of single battery and the output terminal of Buck circuits.
7. a kind of photovoltaic generation electric storage device as claimed in claim 4, it is characterised in that:The Boost circuit includes second Inductance, the 5th switching circuit, the 6th switching circuit, the second capacitance and first resistor, the 6th switching circuit and the second electricity In parallel with the 5th switching circuit after appearance series connection to form parallel branch, the parallel branch is serially connected in the second inductance and the first electricity Between resistance.
8. a kind of photovoltaic generation electric storage device as claimed in claim 6, it is characterised in that:The charge-discharge control circuit also wraps Telecommunication circuit is included, the controller sends monitoring information by the telecommunication circuit to other-end equipment.
9. a kind of photovoltaic generation electric storage device as described in claim 1, it is characterised in that:The single battery is large capacity single Body battery or super capacitor.
10. a kind of photovoltaic generation electric storage device as claimed in claim 2, it is characterised in that:The load is LED light.
CN201810135434.0A 2018-02-09 2018-02-09 A kind of photovoltaic generation electric storage device Pending CN108233520A (en)

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Application Number Priority Date Filing Date Title
CN201810135434.0A CN108233520A (en) 2018-02-09 2018-02-09 A kind of photovoltaic generation electric storage device

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Application Number Priority Date Filing Date Title
CN201810135434.0A CN108233520A (en) 2018-02-09 2018-02-09 A kind of photovoltaic generation electric storage device

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CN109471040A (en) * 2018-10-16 2019-03-15 深圳市普兰德储能技术有限公司 Capacity determination method, device, electronic equipment and computer readable storage medium
CN111436175A (en) * 2018-12-26 2020-07-21 湖南汇博电子科技股份有限公司 Emergency marker lamp and lamp management system

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CN202769518U (en) * 2012-08-01 2013-03-06 陈建丰 Solar light-emitting diode (LED) lamp
CN203120214U (en) * 2012-11-30 2013-08-07 苏州市职业大学 Control and driving integration apparatus used for solar energy LED illumination
CN104882857A (en) * 2015-06-18 2015-09-02 安徽朗越环境工程有限公司 Protection circuit and protection method for safe charging of lithium battery by lithium-ion solar street lamp
CN206100534U (en) * 2016-07-29 2017-04-12 扬州大学 Utilize photovoltaic MPPT power supply system's LED controlling means
CN208522519U (en) * 2018-02-09 2019-02-19 深圳市普兰德储能技术有限公司 A kind of photovoltaic power generation electric storage device

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CN202587502U (en) * 2012-04-23 2012-12-05 合肥海奥电气科技有限公司 Control-driven system for lithium-battery photovoltaic LED
CN202769518U (en) * 2012-08-01 2013-03-06 陈建丰 Solar light-emitting diode (LED) lamp
CN203120214U (en) * 2012-11-30 2013-08-07 苏州市职业大学 Control and driving integration apparatus used for solar energy LED illumination
CN104882857A (en) * 2015-06-18 2015-09-02 安徽朗越环境工程有限公司 Protection circuit and protection method for safe charging of lithium battery by lithium-ion solar street lamp
CN206100534U (en) * 2016-07-29 2017-04-12 扬州大学 Utilize photovoltaic MPPT power supply system's LED controlling means
CN208522519U (en) * 2018-02-09 2019-02-19 深圳市普兰德储能技术有限公司 A kind of photovoltaic power generation electric storage device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109471040A (en) * 2018-10-16 2019-03-15 深圳市普兰德储能技术有限公司 Capacity determination method, device, electronic equipment and computer readable storage medium
CN111436175A (en) * 2018-12-26 2020-07-21 湖南汇博电子科技股份有限公司 Emergency marker lamp and lamp management system

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