CN205864263U - Solar cell panel voltages output control circuit - Google Patents

Solar cell panel voltages output control circuit Download PDF

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Publication number
CN205864263U
CN205864263U CN201620679155.7U CN201620679155U CN205864263U CN 205864263 U CN205864263 U CN 205864263U CN 201620679155 U CN201620679155 U CN 201620679155U CN 205864263 U CN205864263 U CN 205864263U
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diode
resistance
phase bridge
simultaneously connected
npn audion
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CN201620679155.7U
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张凤宁
戈振兴
葛俊峰
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JINING NORMAL UNIVERSITY
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JINING NORMAL UNIVERSITY
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

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Abstract

Solar cell panel voltages output control circuit, belongs to field of electrical control, and this utility model is that the cell panel solved in existing solar energy photovoltaic system exists output voltage shakiness, the problem affecting the electrical equipment life-span.This utility model scheme: include single-phase bridge inverter circuit, single phase bridge type rectifier circu, No. two single phase bridge type rectifier circus, transformator T, W7800 three-terminal voltage-stabilizing chip, auxiliary reclay K, accumulator GB, on and off switch S, resistance R1～R7, potentiometer RP, electrochemical capacitor C1～C5, diode VD9, diode VD14～VD16, light emitting diode VL, audion VT1～VT5, fuse FU1～FU3；Voltage inversion to solaode output, carries out preliminary treatment to the alternating voltage after inversion, is stablized at about 220V, then reprocesses into output+12V DC voltage and provides DC source for load.

Description

Solar cell panel voltages output control circuit
Technical field
This utility model relates to a kind of voltage output-controlling device, belongs to field of electrical control.
Background technology
Solar energy photovoltaic system is made up of solar battery group, controller for solar, accumulator (group), solar panel The core in solar energy photovoltaic system, the effect of solar panel be the luminous energy of the sun is converted into electric energy after, defeated Go out unidirectional current to be stored in accumulator.Solar panel is one of most important parts in solar energy photovoltaic system, its conversion ratio Be service life to determine the key factor that whether has use value of solar cell.Daytime, under illumination condition, solar cell Assembly produces certain electromotive force, forms solar cell array by the connection in series-parallel of assembly so that square formation voltage reaches system The requirement of input voltage.By charging-discharging controller, accumulator is charged again, the power storage that will be converted by luminous energy Get up.In evening, accumulator battery provides input electricity for inverter, by the effect of inverter, by converting direct-current power into alternating-current power, defeated Deliver to power distribution cabinet, the switching effect of power distribution cabinet be powered.The discharge scenario of accumulator battery is controlled by controller, it is ensured that The normal use of accumulator.Photovoltaic power station system also should have limit load protection and lightning protection device, to protect the overload of system equipment Run and exempt from thunderbolt, safeguarding the safe handling of system equipment.
But solar panel output voltage has a unstability: due to by round the clock, season, geographic latitude and height above sea level The impact of the random factors such as the restriction of the natural conditions such as degree and fine, cloudy, cloud, rain, so, arrive the solar irradiation on a certain ground Degree is interruption, is again extremely unstable, and this adds difficulty to the large-scale application of solar energy.Solar energy output voltage is neglected Big the least, such fluctuation voltage can affect the life-span of electrical equipment, the most directly damages electrical equipment, to the life band of people It is inconvenient to come.
Summary of the invention
This utility model purpose is that to there is output voltage unstable in order to solve the cell panel in existing solar energy photovoltaic system, The problem affecting the electrical equipment life-span, it is provided that a kind of solar cell panel voltages output control circuit.
Solar cell panel voltages output control circuit described in the utility model includes single-phase bridge inverter circuit, a list Phase bridge rectifier, No. two single phase bridge type rectifier circus, transformator T, W7800 three-terminal voltage-stabilizing chip, auxiliary reclay K, storages Battery GB, on and off switch S, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, potentiometer RP, electricity Solve electric capacity C1, electrochemical capacitor C2, electric capacity C3, electrochemical capacitor C4, electrochemical capacitor C5, diode VD9, diode VD14, diode VD15, diode VD16, light emitting diode VL, NPN audion VT1, NPN audion VT2, PNP triode VT3, NPN audion VT4, NPN audion VT5, fuse FU1, fuse FU2 and fuse FU3；
Transformator T has a set of primary side winding W3 and two set vice-side winding W1, W2；
Parallel electrolytic electric capacity C1 between the both positive and negative polarity of the DC power output end of solaode, the direct current of solaode Positive source outfan connects the positive DC power input of single-phase bridge inverter circuit, and the DC source of solaode is born Pole outfan connects the negative DC power input of single-phase bridge inverter circuit；
One ac output end of single-phase bridge inverter circuit connects one end of on and off switch S, the other end of on and off switch S Connecting one end of fuse FU1, the other end of fuse FU1 is simultaneously connected with one end and one end of vice-side winding W1 of resistance R1, The other end of vice-side winding W1 is simultaneously connected with another ac output end of single-phase bridge inverter circuit and No. two single-phase bridges are whole One ac input end of current circuit；The other end of resistance R1 connects diode VD9 anode, and diode VD9 negative electrode is simultaneously connected with One end of electric capacity C3, the base stage of NPN audion VT1, a fixing end of potentiometer RP and movable end thereof；
The two ends of vice-side winding W2 connect static contact normally opened contact and the normally-closed contact of auxiliary reclay K respectively, continue in centre The moving contact of electrical equipment K connects another ac input end of No. two single phase bridge type rectifier circus；
The two ends of primary side winding W3 connect two ac input ends of a single phase bridge type rectifier circu respectively, and No. one single-phase The DC power anode outfan of bridge rectifier is simultaneously connected with the positive pole of electrochemical capacitor C2, one end of resistance R2, resistance R3 One end and the emitter stage of PNP triode VT3；The other end of resistance R2 is simultaneously connected with colelctor electrode and the NPN of NPN audion VT1 The base stage of audion VT2, the emitter stage of NPN audion VT1 is simultaneously connected with one end and the transmitting of NPN audion VT2 of resistance R5 Pole, the colelctor electrode of NPN audion VT2 is simultaneously connected with the other end and one end of resistance R4 of resistance R3, and the other end of resistance R4 is even Connecing the base stage of PNP triode VT3, the colelctor electrode of PNP triode VT3 connects one end of auxiliary reclay K coil；
The DC power cathode outfan of a number single phase bridge type rectifier circu is simultaneously connected with the negative pole of electrochemical capacitor C2, electric capacity The other end of C3, another fixing end, the other end of resistance R5 and the other end of auxiliary reclay K coil of potentiometer RP；
The DC power anode outfan of No. two single phase bridge type rectifier circus connects one end of fuse FU2, fuse FU2 The other end be simultaneously connected with the positive pole of electrochemical capacitor C4,1 foot of W7800 three terminal regulator, the colelctor electrode of NPN audion VT4 and The colelctor electrode of NPN audion VT5；
3 feet of W7800 three terminal regulator are simultaneously connected with base stage and resistance R6 one end of NPN audion VT4；NPN audion The emitter stage of VT4 connects the base stage of NPN audion VT5, the anode of the emitter stage connection diode VD16 of NPN audion VT5, and two The negative electrode of pole pipe VD16 is simultaneously connected with one end of fuse FU3 and the positive pole of accumulator GB；The other end of fuse FU3 connects electricity One end of resistance R7, and as the cathode output end of 12V DC source；
The anode of the other end connecting luminous diode VL of resistance R7；
The other end of resistance R6 is simultaneously connected with anode and the positive pole of electrochemical capacitor C5 of diode VD14；Diode VD14's Negative electrode connects the anode of diode VD15；
The DC power cathode outfan of No. two single phase bridge type rectifier circus is simultaneously connected with the negative pole of electrochemical capacitor C4, two poles The negative electrode of pipe VD15, the negative pole of electrochemical capacitor C5, the negative pole of accumulator GB and the negative electrode of light emitting diode VL, and straight as 12V The cathode output end of stream power supply.
Advantage of the present utility model: solar cell panel voltages output control circuit simple in construction described in the utility model, Voltage inversion to solaode output, carries out preliminary treatment to the alternating voltage after inversion, is stablized at about 220V, Then reprocess into output+12V DC voltage and provide DC source for load ,+12V voltage can also be produced when the sun is strong for storing Battery charges, and during the cloudy day, accumulator is load supplying, has reached the most cloudy, fine day, all can stably export 12V direct current Voltage, preferably provides the user electric energy.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of solar cell panel voltages output control circuit described in the utility model.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 1, solar panel electricity described in present embodiment Pressure output control circuit include single-phase bridge inverter circuit, single phase bridge type rectifier circu, No. two single phase bridge type rectifier circus, Transformator T, W7800 three-terminal voltage-stabilizing chip, auxiliary reclay K, accumulator GB, on and off switch S, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, potentiometer RP, electrochemical capacitor C1, electrochemical capacitor C2, electric capacity C3, electrochemical capacitor C4, electrochemical capacitor C5, diode VD9, diode VD14, diode VD15, diode VD16, light emitting diode VL, NPN tri-pole Pipe VT1, NPN audion VT2, PNP triode VT3, NPN audion VT4, NPN audion VT5, fuse FU1, fuse FU2 With fuse FU3；
Transformator T has a set of primary side winding W3 and two set vice-side winding W1, W2；
Parallel electrolytic electric capacity C1 between the both positive and negative polarity of the DC power output end of solaode, the direct current of solaode Positive source outfan connects the positive DC power input of single-phase bridge inverter circuit, and the DC source of solaode is born Pole outfan connects the negative DC power input of single-phase bridge inverter circuit；
One ac output end of single-phase bridge inverter circuit connects one end of on and off switch S, the other end of on and off switch S Connecting one end of fuse FU1, the other end of fuse FU1 is simultaneously connected with one end and one end of vice-side winding W1 of resistance R1, The other end of vice-side winding W1 is simultaneously connected with another ac output end of single-phase bridge inverter circuit and No. two single-phase bridges are whole One ac input end of current circuit；The other end of resistance R1 connects diode VD9 anode, and diode VD9 negative electrode is simultaneously connected with One end of electric capacity C3, the base stage of NPN audion VT1, a fixing end of potentiometer RP and movable end thereof；
The two ends of vice-side winding W2 connect static contact normally opened contact and the normally-closed contact of auxiliary reclay K respectively, continue in centre The moving contact of electrical equipment K connects another ac input end of No. two single phase bridge type rectifier circus；
The two ends of primary side winding W3 connect two ac input ends of a single phase bridge type rectifier circu respectively, and No. one single-phase The DC power anode outfan of bridge rectifier is simultaneously connected with the positive pole of electrochemical capacitor C2, one end of resistance R2, resistance R3 One end and the emitter stage of PNP triode VT3；The other end of resistance R2 is simultaneously connected with colelctor electrode and the NPN of NPN audion VT1 The base stage of audion VT2, the emitter stage of NPN audion VT1 is simultaneously connected with one end and the transmitting of NPN audion VT2 of resistance R5 Pole, the colelctor electrode of NPN audion VT2 is simultaneously connected with the other end and one end of resistance R4 of resistance R3, and the other end of resistance R4 is even Connecing the base stage of PNP triode VT3, the colelctor electrode of PNP triode VT3 connects one end of auxiliary reclay K coil；
The DC power cathode outfan of a number single phase bridge type rectifier circu is simultaneously connected with the negative pole of electrochemical capacitor C2, electric capacity The other end of C3, another fixing end, the other end of resistance R5 and the other end of auxiliary reclay K coil of potentiometer RP；
The DC power anode outfan of No. two single phase bridge type rectifier circus connects one end of fuse FU2, fuse FU2 The other end be simultaneously connected with the positive pole of electrochemical capacitor C4,1 foot of W7800 three terminal regulator, the colelctor electrode of NPN audion VT4 and The colelctor electrode of NPN audion VT5；
3 feet of W7800 three terminal regulator are simultaneously connected with base stage and resistance R6 one end of NPN audion VT4；NPN audion The emitter stage of VT4 connects the base stage of NPN audion VT5, the anode of the emitter stage connection diode VD16 of NPN audion VT5, and two The negative electrode of pole pipe VD16 is simultaneously connected with one end of fuse FU3 and the positive pole of accumulator GB；The other end of fuse FU3 connects electricity One end of resistance R7, and as the cathode output end of 12V DC source；
The anode of the other end connecting luminous diode VL of resistance R7；
The other end of resistance R6 is simultaneously connected with anode and the positive pole of electrochemical capacitor C5 of diode VD14；Diode VD14's Negative electrode connects the anode of diode VD15；
The DC power cathode outfan of No. two single phase bridge type rectifier circus is simultaneously connected with the negative pole of electrochemical capacitor C4, two poles The negative electrode of pipe VD15, the negative pole of electrochemical capacitor C5, the negative pole of accumulator GB and the negative electrode of light emitting diode VL, and straight as 12V The cathode output end of stream power supply.
Single-phase bridge inverter circuit is made up of MOS switch pipe V1, MOS switch pipe V2, MOS switch pipe V3 and switching tube V4, Anti-parallel diodes VD1 between the source-drain electrode of MOS switch pipe V1, reverse parallel connection two pole between the source-drain electrode of MOS switch pipe V2 Pipe VD2, anti-parallel diodes VD3 between the source-drain electrode of MOS switch pipe V3, between the source-drain electrode of MOS switch pipe V4 the most also Connection diode VD4.
A number single phase bridge type rectifier circu is to be made up of diode VD5, diode VD6, diode VD7 and diode VD8 Rectification circuit.
No. two single phase bridge type rectifier circus are by diode VD10, diode VD11, diode VD12 and diode VD13 The rectification circuit constituted.
Operation principle: the unidirectional current of solaode output is unstable, and such voltage is can not be directly to load , people are effectively stable in order to utilize this unidirectional current must carry out it, and what present embodiment was given is exactly stability contorting Circuit so that it is stable output+12V DC source.
The DC voltage that first big for fluctuating margin solaode is exported by present embodiment is by single-phase bridge inversion electricity Its inversion is alternating voltage by road, and this alternating voltage carries out the mid portion circuit of preliminarily stabilised, i.e. Fig. 1, allows its preliminarily stabilised Output, generally 220V, this alternating voltage exports stable+12V direct current through Fig. 1 the latter half processing of circuit again and supplies electricity to load.
Voltage preliminarily stabilised circuit includes power circuit and voltage detecting and controling circuit two parts, and power circuit includes power supply Switch S, FU1, transformator T, VD5～VD8, C2；Voltage detecting and controling circuit includes R1～R5, C3, RP, VT1～VT3, centre Relay K, VD9.
Guan Bi S, the alternating voltage (voltage that 220V fluctuates up and down) that solar panel exports through inversion is through T blood pressure lowering, VD5 ～after VD8 rectification, C2 filtering adjustment, provide running voltage for VT1～VT3 and K.
It is added in the alternating voltage on the W1 winding of transformator T also through R1 current limliting blood pressure lowering, VD9 rectification, C3 filtering and RP dividing potential drop After, the base stage at VT1 produces sampling voltage.
When solar panel is when the alternating voltage that inversion exports is 190V～220V, VT1 ends, VT2 and VT3 leads Logical, K be energized adhesive, the connection of its normally open contact, and the alternating voltage that solar panel exports through inversion is through W1, W2 winding liter of T Pressure is for exporting after about 220V.
When solar panel is higher than 220V through the alternating voltage that inversion exports, VT1 turns on, makes VT2, VT3 end, K Release, its normally open contact disconnects, and normally closed interlock is connected, and the alternating voltage that solar panel exports through inversion directly exports.
Through foregoing circuit preliminary treatment, the alternating current power supply of output about 220V, the alternating current power supply warp of this about 220V VD10～VD13 rectification, after C4 filtering, produces a smooth direct current changed with sun intensity size and load weight conversion Voltage, typically fluctuates between 0～40V, and this DC voltage expands electric current be output as+12.7V through W7800 voltage stabilizing, VT4, VT5 After, then through VD16, accumulator GB is charged.When accumulator GB terminal voltage is less than 12V, charge to accumulator GB through VT4, VT5, Until the terminal voltage of accumulator GB reaches nominal value 12V.
When sun intensity is bigger, solaode output voltage is higher, and after preliminary voltage stabilizing, the alternating voltage of output surpasses Crossing 220V, rectified filtered DC voltage reaches 18V～40V, through the normal work of constant voltage dc source of VT4, VT5 output Make, power to the load；If cloudy day or sun intensity less, solaode output voltage is on the low side, rectified filtered directly When stream voltage is less than 18V, then VD16 ends because VT4, VT5 output voltage is less than+12.7V, and changing by accumulator GB is that load carries For+12V voltage.
Visible through two step voltage stabilizing and process, load can be given by voltage stabilizing output+12V voltage.

Claims (4)

1. solar cell panel voltages output control circuit, it is characterised in that include single-phase bridge inverter circuit, a single-phase bridge Formula rectification circuit, No. two single phase bridge type rectifier circus, transformator T, W7800 three-terminal voltage-stabilizing chip, auxiliary reclay K, accumulator GB, on and off switch S, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, potentiometer RP, electrolysis electricity Hold C1, electrochemical capacitor C2, electric capacity C3, electrochemical capacitor C4, electrochemical capacitor C5, diode VD9, diode VD14, diode VD15, Diode VD16, light emitting diode VL, NPN audion VT1, NPN audion VT2, PNP triode VT3, NPN audion VT4, NPN audion VT5, fuse FU1, fuse FU2 and fuse FU3；
Transformator T has a set of primary side winding W3 and two set vice-side winding W1, W2；
Parallel electrolytic electric capacity C1 between the both positive and negative polarity of the DC power output end of solaode, the DC source of solaode Cathode output end connects the positive DC power input of single-phase bridge inverter circuit, and the DC power cathode of solaode is defeated Go out end and connect the negative DC power input of single-phase bridge inverter circuit；
One ac output end of single-phase bridge inverter circuit connects one end of on and off switch S, and the other end of on and off switch S connects One end of fuse FU1, the other end of fuse FU1 is simultaneously connected with one end and one end of vice-side winding W1, the secondary of resistance R1 The other end of winding W1 is simultaneously connected with another ac output end of single-phase bridge inverter circuit and No. two single-phase bridge rectification electricity One ac input end on road；The other end of resistance R1 connects diode VD9 anode, and diode VD9 negative electrode is simultaneously connected with electric capacity One end of C3, the base stage of NPN audion VT1, a fixing end of potentiometer RP and movable end thereof；
The two ends of vice-side winding W2 connect static contact normally opened contact and the normally-closed contact of auxiliary reclay K, auxiliary reclay K respectively Moving contact connect No. two single phase bridge type rectifier circus another ac input end；
The two ends of primary side winding W3 connect two ac input ends of a single phase bridge type rectifier circu, a single-phase bridge respectively The DC power anode outfan of rectification circuit be simultaneously connected with the positive pole of electrochemical capacitor C2, one end of resistance R2, the one of resistance R3 End and the emitter stage of PNP triode VT3；The other end of resistance R2 is simultaneously connected with colelctor electrode and NPN tri-pole of NPN audion VT1 The base stage of pipe VT2, the emitter stage of NPN audion VT1 is simultaneously connected with one end and the emitter stage of NPN audion VT2 of resistance R5, The colelctor electrode of NPN audion VT2 is simultaneously connected with the other end and one end of resistance R4 of resistance R3, and the other end of resistance R4 connects The base stage of PNP triode VT3, the colelctor electrode of PNP triode VT3 connects one end of auxiliary reclay K coil；
The DC power cathode outfan of a number single phase bridge type rectifier circu is simultaneously connected with the negative pole of electrochemical capacitor C2, electric capacity C3 The other end, another fixing end, the other end of resistance R5 and the other end of auxiliary reclay K coil of potentiometer RP；
The DC power anode outfan of No. two single phase bridge type rectifier circus connects one end of fuse FU2, and fuse FU2's is another One end is simultaneously connected with the positive pole of electrochemical capacitor C4,1 foot of W7800 three terminal regulator, the colelctor electrode of NPN audion VT4 and NPN tri- The colelctor electrode of pole pipe VT5；
3 feet of W7800 three terminal regulator are simultaneously connected with base stage and resistance R6 one end of NPN audion VT4；NPN audion VT4's Emitter stage connects the base stage of NPN audion VT5, and the emitter stage of NPN audion VT5 connects the anode of diode VD16, diode The negative electrode of VD16 is simultaneously connected with one end of fuse FU3 and the positive pole of accumulator GB；The other end of fuse FU3 connects resistance R7 One end, and as the cathode output end of 12V DC source；
The anode of the other end connecting luminous diode VL of resistance R7；
The other end of resistance R6 is simultaneously connected with anode and the positive pole of electrochemical capacitor C5 of diode VD14；The negative electrode of diode VD14 Connect the anode of diode VD15；
The DC power cathode outfan of No. two single phase bridge type rectifier circus is simultaneously connected with the negative pole of electrochemical capacitor C4, diode The negative electrode of VD15, the negative pole of electrochemical capacitor C5, the negative pole of accumulator GB and the negative electrode of light emitting diode VL, and as 12V direct current The cathode output end of power supply.
Solar cell panel voltages output control circuit the most according to claim 1, it is characterised in that single-phase bridge inversion electricity Route MOS switch pipe V1, MOS switch pipe V2, MOS switch pipe V3 and switching tube V4 are constituted, between the source-drain electrode of MOS switch pipe V1 Anti-parallel diodes VD1, anti-parallel diodes VD2 between the source-drain electrode of MOS switch pipe V2, the source and drain of MOS switch pipe V3 Anti-parallel diodes VD3 between pole, anti-parallel diodes VD4 between the source-drain electrode of MOS switch pipe V4.
Solar cell panel voltages output control circuit the most according to claim 1 a, it is characterised in that single-phase bridge is whole Current circuit is the rectification circuit being made up of diode VD5, diode VD6, diode VD7 and diode VD8.
Solar cell panel voltages output control circuit the most according to claim 1, it is characterised in that No. two single-phase bridges are whole Current circuit is the rectification circuit being made up of diode VD10, diode VD11, diode VD12 and diode VD13.
CN201620679155.7U 2016-06-29 2016-06-29 Solar cell panel voltages output control circuit Expired - Fee Related CN205864263U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620679155.7U CN205864263U (en) 2016-06-29 2016-06-29 Solar cell panel voltages output control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620679155.7U CN205864263U (en) 2016-06-29 2016-06-29 Solar cell panel voltages output control circuit

Publications (1)

Publication Number Publication Date
CN205864263U true CN205864263U (en) 2017-01-04

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Application Number Title Priority Date Filing Date
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