CN204578192U - A kind of photovoltaic using electricity system - Google Patents

A kind of photovoltaic using electricity system Download PDF

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Publication number
CN204578192U
CN204578192U CN201520265013.1U CN201520265013U CN204578192U CN 204578192 U CN204578192 U CN 204578192U CN 201520265013 U CN201520265013 U CN 201520265013U CN 204578192 U CN204578192 U CN 204578192U
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China
Prior art keywords
photovoltaic
circuit
storage battery
load
electricity system
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Expired - Fee Related
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CN201520265013.1U
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Chinese (zh)
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周国文
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Individual
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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
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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 embodiment discloses a kind of photovoltaic using electricity system, comprise photovoltaic cell, photovoltaic controller, storage battery and DC load and AC load, controller has charging circuit, discharge circuit and control circuit: charging circuit one termination connects photovoltaic cell, another termination storage battery; Inverter circuit one termination storage battery, a road of the other end is connected to DC load, and another road is connected to AC load through inverter circuit; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively.The utility model improves photovoltaic using electricity system and subsystem, effectively can improve properties of product, has environmental protection, economy, the advantage such as easy to use.

Description

A kind of photovoltaic using electricity system
Technical field
The utility model relates to photovoltaic technology, particularly relates to a kind of photovoltaic using electricity system and subsystem thereof.
Background technology
Photovoltaic using electricity system is made up of parts such as photovoltaic cell, controller, storage battery, loads.There is certain defect in existing photovoltaic using electricity system: photovoltaic cell generally adopts polycrystalline silicon material, and its multi-source is in the material end to end of microelectronics industry, and metal impurities wherein and microdefect have had a strong impact on the photoelectric conversion efficiency of solar cell; Controller Lighting Protection Measures is ineffective, influential system security performance; Inevitably there is inconsistent situation in the capacity between multiple cell batteries of storage battery and self discharge, affects the life of storage battery; The transducer air conditioning inverter circuit complex structure of AC load, frequency conversion effect is not ideal enough; The LED lamp luminous intensity distribution of DC load is meticulous not, and illuminating effect is not good enough; Etc..In view of the upper deficiency existed of existing photovoltaic using electricity system design, be thus necessary to be improved.
Utility model content
For the defect that prior art exists, the object of the utility model embodiment is to improve photovoltaic using electricity system or subsystem, so that the performance of improving product at least in one aspect.
For solving above technical problem, the utility model embodiment provides a kind of photovoltaic using electricity system, comprise photovoltaic cell, photovoltaic controller, storage battery and DC load and AC load, controller has charging circuit, discharge circuit and control circuit: charging circuit one termination connects photovoltaic cell, another termination storage battery; Inverter circuit one termination storage battery, a road of the other end is connected to DC load, and another road is connected to AC load through inverter circuit; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively.
Compared with prior art, the utility model embodiment is improved photovoltaic using electricity system or subsystem, effectively can improve properties of product, there is environmental protection, economy, the advantage such as easy to use: (1) adopts film photovoltaic cell, lightweight, efficient, high-specific-power and consumptive material is few; (2) controller can effectively lightning protection, improves system safety performance; (3) storage battery can ensure again the activity of storage battery while carrying out charging, and avoids storage battery and deposits, thus extend the life-span of storage battery largely; (4) the transducer air conditioning inverter circuit of AC load controls power tube by pwm signal, and structure is simple, better performances; (5) the LED lamp fine light distribution of DC load, good illumination effect.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model photovoltaic using electricity system;
Fig. 2 is the structural representation of the utility model film photovoltaic cell;
Fig. 3 is the schematic block circuit diagram of the utility model controller;
Fig. 4 is the schematic block circuit diagram of the utility model storage battery;
Fig. 5 is the schematic block circuit diagram of this utility model inverter circuit;
Fig. 6 is the longitudinal profile schematic diagram of the utility model LED lamp;
Fig. 7 is the elevational schematic view of the utility model LED lamp.
Embodiment
In order to understand know-why and the course of work of the utility model embodiment better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.
See Fig. 1, the theory diagram of the utility model photovoltaic using electricity system is shown.This photovoltaic using electricity system (hereinafter referred to as system) comprises photovoltaic cell 100, photovoltaic controller 200, storage battery 300, inverter circuit 500 and DC load 400 and AC load 600, controller has charging circuit 210, discharge circuit 230 and control circuit 220: charging circuit 210 1 termination connects photovoltaic cell 100, another termination storage battery 300; Inverter circuit 500 1 termination storage battery, a road of the other end is connected to DC load (being LED lamp in the present embodiment) 400, and another road is connected to AC load (being transducer air conditioning in the present embodiment) 600 through inverter circuit 500; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively.
In Fig. 1, the core of film photovoltaic cell 100 native system, its effect is that the radianting capacity of the sun is converted to electric energy, or is sent in storage battery and stores, or promotes DC load 400 or AC load 600 works.The effect of controller 200 is the operating states controlling whole system, and storage battery is played to the effect of additives for overcharge protection, over.The effect of storage battery 300 is the electrical power storage sent by photovoltaic cell when there being illumination, and it's time to needs to discharge again.LED lamp transducer air conditioning, as DC load, meets the lighting demand of user when needed; Transducer air conditioning, as AC load, can carry out speed governing easily.
The present embodiment includes but are not limited to following characteristics: (1) adopts film photovoltaic cell 100, contributes to lightweight, efficient, high-specific-power and consumptive material is few; (2) controller 200 can effectively lightning protection, improves system safety performance; (3) storage battery 300 is under the prerequisite of not losing photovoltaic switching energy, improves the charge efficiency of batteries and the efficiency of actual of photo-voltaic power supply, extends the useful life of batteries; (4) transducer air conditioning inverter circuit controls power tube by pwm signal, and structure is simple, better performances; (5) the LED lamp fine light distribution of DC load, good illumination effect.Below be described for each several part further.
See Fig. 2, the structural representation of the utility model film photovoltaic cell is shown.This film photovoltaic cell 100 comprises the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150, wherein: the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150 from top to bottom set gradually; Extraction electrode (scheming not shown) in first electro-conductive glass substrate 110 and the second electro-conductive glass substrate 150, be generally that the first electro-conductive glass substrate 110 draws positive electrode above, the second electro-conductive glass substrate 150 draws negative electrode above.
In Fig. 2, the specification of above-mentioned each layer can be: the length of the first electro-conductive glass substrate 110, second electro-conductive glass substrate 150 is 40mm, and width is 15mm, and thickness is 3mm; Deposit absorbent layer 120 is made for semiconductor nano material, and length is 30mm, and width is 15mm, and thickness is 2 × 10 -3mm; Resilient coating 130 is In 2s 3material is made, and length is 25mm, and width is 15mm, and thickness is 4 × 10 -3mm; The length of conductive silver glue 140 is 20mm, and width is 15mm, and thickness is 2 × 10 -3mm.Setting like this, material consumption is few, manufactures energy consumption low, and has excellent effect at the aspect of performance such as voltage improving battery.
See Fig. 3, the schematic block circuit diagram of the utility model controller is shown.This controller 200 comprises charging circuit 210, discharge circuit 230, control circuit 220 and lightning protection circuit 240, and charging circuit 210, discharge circuit 230 and storage battery 300 are in parallel, and lightning protection circuit 240 and storage battery 300 are connected.Owing to adding lightning protection circuit 240, the thunder-strike current flowing through storage battery 300 greatly reduces.
Lightning protection circuit 240 in the present embodiment is specially lightning protection inductance, and the thunder-strike current flowing through storage battery 300 after adding this lightning protection inductance greatly reduces; Meanwhile, the induction reactance of this lightning protection inductance much larger than accumulator internal resistance, thus at storage battery 300 two ends a point residual voltage also greatly reduce, also enhance the lightning protection capability of system like this.In addition, also can to connect respectively lightning protection inductance in charging circuit 210, discharge circuit 230, to improve lightning protection capability further.
See Fig. 4, the schematic block circuit diagram of the utility model storage battery is shown.This storage battery 300 comprises accumulator body 310, battery management module 320, data/address bus 330, auxiliary power supply bus 350 and auxiliary charging control line 340, and wherein the positive pole of accumulator body 310 is connected with battery management module 320 respectively with negative pole.Further illustrate as follows.
In Fig. 4, this battery management module 320 comprises the detection control unit 321 be connected respectively with the positive pole of accumulator body 310 and negative pole and the supplemental charging unit 322 be connected respectively with negative pole with the positive pole of accumulator body 310, and detection control unit 201 is connected with supplemental charging unit 202; Data/address bus 330 is connected with detection control unit 321; Auxiliary power supply bus 350 is connected with supplemental charging unit 322; Auxiliary charging control line 340 is connected with the output of detection control unit 321; Detection control unit 321, for detecting the running status of accumulator body 310 in real time, when the real-time voltage of accumulator body 310 is less than threshold voltage, is charged by auxiliary power supply bus 350 pairs of accumulator bodies 310 by supplemental charging unit 322.
In the present embodiment, detection control unit 321 can detect the state of accumulator body 310, and carry out discharge and recharge operation to this accumulator body 310 under the coordinative role of supplemental charging unit 322, thus storage battery entirety is made all to remain on desirable balance of voltage state.Storage battery so both can be made to keep active, the state of the balance of voltage can have been reached again, and be unlikely to occur to overcharge or the state of charge less, which thereby enhance the life-span of storage battery.
See Fig. 5, the inverter circuit of the utility model transducer air conditioning is shown.This inverter circuit 500 comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit 500 comprises six power tube Q1 ~ Q6, and these six power tubes are divided into three groups, and every group power controls a phase winding of frequency converting air-conditioner compressor motor.
The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects one end of DC power supply jointly, the drain electrode of power tube Q4, Q5, Q6 connects the other end of DC power supply jointly, the tie point of the drain electrode of power tube Q1 and the source electrode of power tube Q4 connects the U phase terminal of motor, the tie point of the drain electrode of power tube Q2 and the source electrode of power tube Q5 connects the V phase terminal of motor, and the drain electrode of power tube Q3 and the source electrode tie point of power tube Q6 connect the W phase terminal of frequency converting air-conditioner compressor motor; The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 connects an output of power tube driving chip respectively, and each input of this power tube driving chip controls by output pulse width conditioning signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.These six power tube Q1 ~ Q6 source electrode and drain electrode between corresponding access diode D1 ~ D6.
During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the compressor electric motor rotating speed of setting, i.e. drive singal PWM1 ~ PWM6; 6 power tube (MOSFET or IGBT) Q1 ~ Q6 of inverter 500 are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, outputs to U, V, W terminals of frequency converting air-conditioner compressor motor winding, thus realizes the stepless frequency control of frequency converting air-conditioner compressor motor.
See Fig. 6-Fig. 7, the structural representation of the utility model LED lamp is shown.This LED lamp has lampshade and is arranged on the spherical luminosity scale on lampshade, this luminosity scale comprises the spherical substrate 410 that flexible printed circuit board curves, the extrados of this substrate 410 evenly assembles the LED light source 420 of small-power (rated power is at below 1W), make the light of luminosity scale can cover whole illumination classification, light is kept rationally to disperse, avoid the excessive overlap of illumination classification, make the hot spot in effective irradiation area keep the highest illuminance and illumination.
As Figure 6-Figure 7, substrate 410 arranged outside has reflector 430, is provided with cellular reflector 440, is made up of the plastics being provided with electrodeposited coating above it, and its inwall can play good reflex to light source; Wherein, the bottom embedded with LED light source 420 respectively of reflector 440, thus realize the effective optically focused to LED light source 420.
Especially, mutual cutting in the arc-shaped between adjacent reflector 440, and in formation crosspoint, rim of a cup place 450.Like this, by changing the size of the degree of depth of reflector 440, wall of cup curvature, rim of a cup aperture, the shape of adjustable reflector 440, the LED light source 420 be installed on bottom reflector 440 is guided to change rising angle, to be irradiated to predetermined irradiation area, reach the object of fine light distribution.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection range of the present utility model should define with the utility model claim is as the criterion.

Claims (5)

1. a photovoltaic using electricity system, it is characterized in that, comprise photovoltaic cell, photovoltaic controller, storage battery and DC load and AC load, controller has charging circuit, discharge circuit and control circuit: charging circuit one termination connects photovoltaic cell, another termination storage battery; Inverter circuit one termination storage battery, a road of the other end is connected to DC load, and another road is connected to AC load through inverter circuit; Control circuit divides three tunnels to connect charging circuit, discharge circuit and storage battery respectively.
2. photovoltaic using electricity system as claimed in claim 1, it is characterized in that, AC load is transducer air conditioning; Inverter circuit comprises power tube driving chip and six power tubes: power tube driving chip is connected to microprocessor, to drive corresponding power tube alternate conduction and shutoff according to the pulse width modulating signal of microprocessor output; Six power tubes are divided into three groups, and every group power controls a phase winding of transducer air conditioning motor.
3. photovoltaic using electricity system as claimed in claim 2, it is characterized in that, photovoltaic controller comprises lightning protection circuit, this lightning protection circuit and storage battery series connection.
4. photovoltaic using electricity system as claimed in claim 3, it is characterized in that, photovoltaic cell is film photovoltaic cell.
5. photovoltaic using electricity system as claimed in claim 4, it is characterized in that, storage battery comprises accumulator body, battery management module, data/address bus, auxiliary power supply bus and auxiliary charging control line, and wherein the positive pole of accumulator body is connected with battery management module respectively with negative pole.
CN201520265013.1U 2015-04-28 2015-04-28 A kind of photovoltaic using electricity system Expired - Fee Related CN204578192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520265013.1U CN204578192U (en) 2015-04-28 2015-04-28 A kind of photovoltaic using electricity system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520265013.1U CN204578192U (en) 2015-04-28 2015-04-28 A kind of photovoltaic using electricity system

Publications (1)

Publication Number Publication Date
CN204578192U true CN204578192U (en) 2015-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520265013.1U Expired - Fee Related CN204578192U (en) 2015-04-28 2015-04-28 A kind of photovoltaic using electricity system

Country Status (1)

Country Link
CN (1) CN204578192U (en)

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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: 20150819

Termination date: 20160428