CN106300598A - There is charging, control and the solar control system of discharging function - Google Patents

There is charging, control and the solar control system of discharging function Download PDF

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Publication number
CN106300598A
CN106300598A CN201610724322.XA CN201610724322A CN106300598A CN 106300598 A CN106300598 A CN 106300598A CN 201610724322 A CN201610724322 A CN 201610724322A CN 106300598 A CN106300598 A CN 106300598A
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CN
China
Prior art keywords
resistance
control
circuit
oxide
metal
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CN201610724322.XA
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Chinese (zh)
Inventor
高传芳
高峰
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苏州苏宝新能源科技有限公司
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Priority to CN201610724322.XA priority Critical patent/CN106300598A/en
Publication of CN106300598A publication Critical patent/CN106300598A/en

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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
    • 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
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses a kind of have charging, control and the solar control system of discharging function, including solaode, controller for solar, accumulator and transducer air conditioning, controller for solar includes charging circuit, control circuit, lightning protection circuit and discharge circuit, transducer air conditioning includes inverter circuit and compressor, discharge circuit includes control of discharge unit and discharge paths, control of discharge unit includes the 41st resistance, the 42nd electric capacity and the 41st audion, and discharge paths includes the 45th discharge resistance and the 42nd metal-oxide-semiconductor.The present invention can effectively lightning protection, improve security of system performance, accumulator can ensure that again while being charged accumulator activity, can extend accumulator life-span, can improve the charge efficiency to accumulator, prolongation accumulator the electricity consumption time, have preferable self-startup ability, avoid the occurrence of endless loop state, reliability height and energy consumption relatively low.

Description

There is charging, control and the solar control system of discharging function

Technical field

The present invention relates to solar airconditioning field, particularly to a kind of, there is charging, control and the solar energy of discharging function Control system.

Background technology

Solar air-conditioner system is made up of parts such as solaode, controller, accumulator and transducer air conditionings.Existing Solar air-conditioner system has following defects that controller Lighting Protection Measures is ineffective, affects security of system performance;Accumulator is many Inevitably there is inconsistent situation in capacity and self discharge between individual cell batteries, affects the life of storage battery.

It addition, when occur continuous print several overcast and rainy time, the electric power of accumulator is not enough to maintain and is powered equipment work Needing, this will affect the normal work of the equipment of being powered, and will solve this problem, can strengthen accumulator and solar panel Capacity, but cost can significantly rise.

Meanwhile, traditional solar control circuit uses the mode that accumulator single supply is powered, low-voltage disconnects.This side Formula there will be an endless loop: if the supply voltage of accumulator is less than the setting voltage of break function, solar control circuit Will disconnect, and solar control circuit oneself cannot recover automatically, reason is that solar control circuit is only in electric power storage Cell voltage is sufficiently high when can work, and the luminous energy of output could be charged a battery by solar energy by solar control circuit, Even if solar energy output has electricity after controller for solar disconnects, but battery tension is inadequate, and controller for solar low-voltage disconnects, So this part electric energy cannot be charged to inside accumulator, owing to solar energy-electric energy cannot be charged to accumulator, such battery tension Would not rise, controller for solar would not restart.

Inverter is generally used for unidirectional current is converted to alternating current, and it has generally included DC side energy storage electricity at DC side Hold.When inverter quits work, the electric energy being stored on DC side storage capacitor needs quickly to discharge.Especially change The inverter that voltage is higher, it is when quitting work, and the danger of the electric energy being stored on DC side storage capacitor is bigger.Therefore When the power supply of disconnection inverter makes it quit work, need be exceedingly fast to be discharged by the electric energy on its DC side storage capacitor.

Traditional discharge circuit typically directly connects a resistance between the both positive and negative polarity of DC side storage capacitor, by this electricity Resistance consumes the electric energy on this stream side storage capacitor.When inverter is properly functioning, resistance is parallel to DC side energy storage always The two ends of electric capacity, owing to DC side storage capacitor is on the input of the DC side being directly parallel to inverter, i.e. inverter Voltage between positive terminal and the negative pole end of DC side is loaded directly on resistance, so resistance consumes electric energy always, this Electric capacity discharge mode makes energy loss bigger.Simultaneously as resistance the most under high pressure works, the easy temperature of resistance too high and It is easily damaged, therefore it not only shortens the life-span of resistance, also reduce the security reliability of inverter work simultaneously.

Summary of the invention

The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that one can be the most anti- Thunder, raising security of system performance, accumulator can ensure that again the activity of accumulator, can extend accumulator while being charged In the life-span, the charge efficiency to accumulator can be improved, extend the electricity consumption time of accumulator, there is preferable self-startup ability, avoid What appearance endless loop state, reliability height and energy consumption were relatively low has charging, controls and the solar control system of discharging function.

The technical solution adopted for the present invention to solve the technical problems is: one has charging to structure, control and discharge merit The solar control system of energy, including solaode, controller for solar, accumulator and transducer air conditioning, described solar energy Controller includes that charging circuit, control circuit, lightning protection circuit and discharge circuit, described transducer air conditioning include inverter circuit and pressure Contracting machine, described solaode is connected with described charging circuit, and described charging circuit is by described control circuit and described electric discharge Circuit connects, and described charging circuit and discharge circuit are the most all connected with described accumulator, and described control circuit is by described lightning protection Circuit is connected with described accumulator, and described discharge circuit is connected with described compressor also by described inverter circuit;

Described charging circuit includes the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th electricity Resistance, the 16th resistance, the 17th resistance, the 11st electric capacity, the 12nd electric capacity, the 11st stabilivolt, the 11st audion, the tenth Two audions, the 13rd metal-oxide-semiconductor and the 14th metal-oxide-semiconductor, the base stage of described 11st audion and the one of described 11st resistance End connects, and the other end of described 11st resistance is connected with described control circuit, and the emitter stage of described 11st audion connects DC source, the colelctor electrode of described 11st audion by described 12nd resistance respectively with one end of described 11st electric capacity Connect with one end of the 13rd resistance, the base stage of described 12nd audion respectively with the other end of described 11st electric capacity and the One end of 14 resistance connects, the colelctor electrode of described 12nd audion respectively with one end and the 15th of described 12nd electric capacity One end of resistance connects, and the other end of described 15th resistance is connected with described DC source, another of described 12nd electric capacity Hold by described 17th resistance respectively with grid, the negative electrode of the 11st stabilivolt and the 14th MOS of described 13rd metal-oxide-semiconductor The grid of pipe connects, the emitter stage of described 12nd audion by described 16th resistance respectively with described 13rd metal-oxide-semiconductor Source electrode, the anode of the 11st stabilivolt and the 14th metal-oxide-semiconductor source electrode connect, the anode of described 11st stabilivolt also with institute The other end stating the 14th resistance connects, the other end of described 13rd resistance respectively with the drain electrode of described 13rd metal-oxide-semiconductor and The negative pole of described solaode connects, and the drain electrode of described 14th metal-oxide-semiconductor is connected with the negative pole of described accumulator, the described sun Can be connected with the positive pole of described accumulator by the positive pole of battery;

Described control circuit include solar control port, the 31st diode, the 32nd diode, the 33rd Diode, the 34th stabilivolt, the 35th diode, the 36th diode, the 37th stabilivolt, the 31st electricity Resistance, the 32nd resistance, the 33rd resistance, the 31st electric capacity, the 33rd electric capacity, the 31st metal-oxide-semiconductor, integrated voltage-stabilized Chip and the 31st inductance, the first pin of described solar energy port and the second pin all with the positive pole of described solaode Connecting, the 3rd pin of described solar energy port and the 4th pin all negative poles with described solaode are connected, the described sun Second pin of energy port is connected with the described anode of the 31st diode and the anode of the 32nd diode the most respectively, institute State the anode of the negative electrode of the 32nd diode and the 33rd diode positive pole all with described accumulator to be connected, the described 3rd The negative electrode of 11 diodes respectively with the negative electrode of described 33rd diode, the negative electrode of the 34th stabilivolt, the 33rd First pin of one end of resistance, the positive pole of the 31st electric capacity and integrated voltage-stabilized chip connects, described 34th stabilivolt Anode be connected with described one end of 31st resistance and one end of the 32nd resistance respectively, described 31st metal-oxide-semiconductor Grid be connected with the other end of described 32nd resistance, the source electrode of described 31st metal-oxide-semiconductor is respectively with the described 30th The anode of the other end of one resistance, the anode of the 35th diode and the 36th diode connects, and the described 35th The negative electrode of pole pipe is connected with the 4th pin of described solar energy port, the minus earth of described 36th diode, and described The drain electrode of 31 metal-oxide-semiconductors is connected with the described other end of the 33rd resistance and the 5th pin of integrated voltage-stabilized chip respectively, The minus earth of described 31st electric capacity, the 3rd pin ground connection of described integrated voltage-stabilized chip, described integrated voltage-stabilized chip Second pin is connected with described one end of 31st inductance and the negative electrode of the 37th stabilivolt respectively, described 37th steady The plus earth of pressure pipe, the other end of described 31st inductance passes through described 33rd capacity earth, described integrated voltage-stabilized 4th pin of chip connects described DC source;

The DC side of described inverter circuit includes the 41st storage capacitor, one end of described 41st storage capacitor with The electrode input end of the DC side of described inverter circuit connects, the other end of described 41st storage capacitor and described inversion electricity The negative input of the DC side on road connects, the negative input ground connection of the DC side of described inverter circuit, described discharge circuit Including the control of discharge unit in parallel with described 41st storage capacitor and discharge paths, described control of discharge unit includes 41 resistance, the 42nd resistance, the 44th resistance, the 42nd electric capacity and the 41st audion, described electric discharge is propped up Road includes the 45th discharge resistance and the 42nd metal-oxide-semiconductor, and the base stage of described 41st audion passes through the described 40th One resistance connects the power supply signal outfan of described inverter circuit, and the colelctor electrode of described 41st audion is respectively with described the One end of one end of 42 resistance, one end of the 44th resistance and the 42nd electric capacity connects, described 42nd resistance The other end be connected with the electrode input end of the DC side of described inverter circuit, the emitter stage of described 41st audion and The equal ground connection of the other end of 44 resistance, the grid of described 42nd metal-oxide-semiconductor connects with the other end of described 42nd electric capacity Connecing, the drain electrode of described 42nd metal-oxide-semiconductor is by the DC side of described 45th discharge resistance and described inverter circuit just Pole input connects, the source ground of described 42nd metal-oxide-semiconductor.

In the solar control system with charging, control and discharging function of the present invention, described control of discharge Unit also includes the 43rd resistance, and the emitter stage of described 41st audion passes through described 43rd resistance eutral grounding.

In the solar control system with charging, control and discharging function of the present invention, described control of discharge Unit also includes the 43rd electric capacity, described 43rd electric capacity and described 43rd resistor coupled in parallel.

In the solar control system with charging, control and discharging function of the present invention, described discharge paths Also including the 46th resistance, the source electrode of described 42nd metal-oxide-semiconductor passes through described 46th resistance eutral grounding.

In the solar control system with charging, control and discharging function of the present invention, the described 41st Audion is NPN type triode.

In the solar control system with charging, control and discharging function of the present invention, the described 42nd Metal-oxide-semiconductor is N-channel MOS pipe.

That implements the present invention has charging, control and the solar control system of discharging function, has the advantages that Owing to being provided with lightning protection circuit, thus can effectively lightning protection, improve security of system performance;It addition, accumulator be charged same Time can ensure that again the activity of accumulator, it is to avoid accumulator deposits, thus extends the longevity of accumulator largely Life, the charging circuit of the loss of voltage more traditional use diode of charging circuit reduces nearly half, improves solaode pair The charge efficiency of accumulator, charge efficiency more non-PWM height 3%-6%, extend the electricity consumption time of accumulator, control circuit has Good self-startup ability, it is to avoid the endless loop state often occurred in prior art, discharge circuit is mainly by the 41st The break-make of audion and the 42nd metal-oxide-semiconductor controls discharge paths and is operated needs when, thus improves electric discharge electricity The security reliability of road work and the loss of minimizing energy;So it can effectively lightning protection, raising security of system performance, accumulator The activity, the life-span that accumulator can be extended that can ensure that again accumulator while being charged, the charging to accumulator can be improved Efficiency, extend accumulator the electricity consumption time, have preferable self-startup ability, avoid the occurrence of endless loop state, reliability high and Energy consumption is relatively low.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used To obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structure that the present invention has in one embodiment of solar control system of charging, control and discharging function Schematic diagram;

Fig. 2 is the circuit theory diagrams of charging circuit in described embodiment;

Fig. 3 is the circuit theory diagrams of control circuit in described embodiment;

Fig. 4 is the circuit theory diagrams of discharge circuit in described embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.

Having charging in the present invention, control and in the solar control system embodiment of discharging function, this has charging, control The structural representation of the solar control system of system and discharging function is as shown in Figure 1.In Fig. 1, this has charging, controls and discharge The solar control system of function includes solaode PV, controller for solar 1, accumulator BAT and transducer air conditioning 2, its In, controller for solar 1 includes charging circuit 11, control circuit 12, lightning protection circuit 14 and discharge circuit 13, transducer air conditioning 2 Including inverter circuit 21 and compressor 22, solaode PV is connected with charging circuit 11, and charging circuit 11 passes through control circuit 12 are connected with discharge circuit 13, and charging circuit 11 and discharge circuit 13 are also all connected with accumulator BAT, and control circuit 12 is by anti- Thunder and lightning road 14 is connected with accumulator BAT, and discharge circuit 13 is connected with compressor 22 also by inverter circuit 21.Solaode PV It is that the radiation of the sun is converted to electric energy, or is sent in accumulator BAT store, or promote transducer air conditioning 2 to work.The sun The effect of energy controller 1 is the duty controlling the whole solar control system with charging, control and discharging function, and Accumulator BAT is played the effect of additives for overcharge protection and over.The effect of accumulator BAT is by the sun when there being illumination The electrical power storage that energy battery PV is sent, discharges the when of to needs again.Transducer air conditioning 2 as AC load, Can speed governing easily.

Controller for solar 1 by its lightning protection circuit 14 can effectively lightning protection, strengthen the lightning protection capability of system, raising system Security performance, accumulator BAT do not lose solar energy conversion energy on the premise of, improve the charge efficiency of accumulator battery 3 And the efficiency of actual of sun-generated electric power, accumulator BAT can ensure that again the activity of accumulator BAT while being charged, Avoid accumulator BAT to deposit, thus extend the life-span of accumulator BAT largely.

Fig. 2 is the circuit theory diagrams of charging circuit in the present embodiment, and in Fig. 2, charging circuit 11 includes the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, 17 resistance R17, the 11st electric capacity C11, the 12nd electric capacity C12, the 11st stabilivolt D11, the 11st audion Q11, the tenth Two audion Q12, the 13rd metal-oxide-semiconductor Q13 and the 14th metal-oxide-semiconductor Q14, wherein, the 11st electric capacity C11 and the 12nd electric capacity C12 Being coupling electric capacity, the 11st electric capacity C11 is used for the interference prevented between the 11st audion Q11 and the 12nd audion Q12, 12nd electric capacity C12 is for preventing the interference between the 12nd audion Q12 and the 14th metal-oxide-semiconductor Q14, the 16th resistance R16 For current-limiting resistance, it is used for carrying out overcurrent protection.In the present embodiment, the 11st audion Q11 is PNP type triode, the 12nd Pole pipe Q12 is NPN type triode, and the 13rd metal-oxide-semiconductor Q13 and the 14th metal-oxide-semiconductor Q14 is N-channel MOS pipe.Certainly, in this reality Executing under the certain situation of example, the 11st audion Q11 can also be NPN type triode, and the 12nd audion Q12 can also be PNP type triode, the 13rd metal-oxide-semiconductor Q13 and the 14th metal-oxide-semiconductor Q14 can also be P-channel metal-oxide-semiconductor, but at this moment charging circuit Structure to occur to change accordingly.

In the present embodiment, the base stage of the 11st audion Q11 is connected with R11 one end of the 11st resistance, the 11st resistance The other end of R11 is connected with control circuit 12, and the emitter stage of the 11st audion Q11 connects DC source VDD (high level end), The colelctor electrode of the 11st audion Q11 by the 12nd resistance R12 respectively with one end and the 13rd resistance of the 11st electric capacity C11 One end of R13 connects, the base stage of the 12nd audion Q12 respectively with the other end and the 14th resistance R14 of the 11st electric capacity C11 One end connect, the colelctor electrode of the 12nd audion Q12 respectively with one end of the 12nd electric capacity C12 and the 15th resistance R15 One end connects, and the other end of the 15th resistance R15 is connected with DC source VDD, and the other end of the 12nd electric capacity C12 passes through the tenth Seven resistance R17 respectively with grid, the negative electrode of the 11st stabilivolt D11 and the grid of the 14th metal-oxide-semiconductor Q14 of the 13rd metal-oxide-semiconductor Q13 Pole connects, the emitter stage of the 12nd audion Q12 by the 16th resistance R16 respectively with the source electrode of the 13rd metal-oxide-semiconductor Q13, the The anode of 11 stabilivolt D11 and the source electrode of the 14th metal-oxide-semiconductor Q14 connect, and the anode of the 11st stabilivolt D11 is also with the 14th The other end of resistance R14 connects, the other end of the 13rd resistance R13 respectively with drain electrode and the solar-electricity of the 13rd metal-oxide-semiconductor Q13 The negative pole PV-in pond connects, and the drain electrode of the 14th metal-oxide-semiconductor Q14 is connected with the negative pole BAT-of accumulator, the positive pole PV of solaode + be connected with the positive pole BAT+ of accumulator.

In the present embodiment, the pwm control signal of control circuit 12 realize the management to the charging of accumulator BAT.Work as PWM When control signal is low level, the 11st audion Q11 and the 12nd audion Q12 cut-off, the 13rd metal-oxide-semiconductor Q13 and the tenth Four metal-oxide-semiconductor Q14 are under the effect of DC source VDD, in the conduction state, now the negative pole BAT-of accumulator and solaode Negative pole PV-connect, complete the charging to accumulator BAT.When pwm control signal is high level, the 11st audion Q11 and 12nd audion Q12 conducting, the 13rd metal-oxide-semiconductor Q13 and the 14th metal-oxide-semiconductor Q14 cut-off, the negative pole BAT-of accumulator and the sun The negative pole PV-of energy battery disconnects, and accumulator BAT is uncharged.This charging circuit 11 and traditional electricity using fast recovery diode Road is compared, and has higher charge efficiency.Which raises the solaode PV charge efficiency to accumulator BAT, add use The electricity time.

Fig. 3 is the circuit theory diagrams of control circuit in the present embodiment.In Fig. 3, control circuit 12 includes solar control end Mouth XS1, the 31st diode D31, the 32nd diode D32, the 33rd diode D33, the 34th stabilivolt D34, the 35th diode D35, the 36th diode D36, the 37th stabilivolt D37, the 31st resistance R31, 32 resistance R32, the 33rd resistance R33, the 31st electric capacity C31, the 33rd electric capacity C33, the 31st metal-oxide-semiconductor Q31, integrated voltage-stabilized chip U31 and the 31st inductance L31, wherein, the 31st diode D31 and the 33rd diode D33 non-counnter attack diode, the 32nd diode D32 is thyristor, and the 32nd resistance R32 is current-limiting resistance, uses In carrying out overcurrent protection.In the present embodiment, the 31st metal-oxide-semiconductor Q31 is N-channel MOS pipe, certainly, in some of the present embodiment In the case of, the 31st metal-oxide-semiconductor Q31 can also be P-channel metal-oxide-semiconductor, but at this moment the structure of control circuit to change accordingly.

In the present embodiment, first pin of solar energy port x S1 and the second pin are all with the positive pole PV+ of solaode even Connecing, the 3rd pin of solar energy port x S1 and the 4th pin all negative poles with solaode PV-are connected, solar energy port x S1 The second pin be connected with the anode of the 31st diode D31 and the anode of the 32nd diode D32 the most respectively, the 30th The negative electrode of two diode D32 and the anode of the 33rd diode D33 are all connected with the positive pole BAT+ of accumulator, and the 31st The negative electrode of pole pipe D31 respectively with the negative electrode of the 33rd diode D32, the negative electrode of the 34th stabilivolt D34, the 33rd electricity First pin of resistance one end of R33, the positive pole of the 31st electric capacity C31 and integrated voltage-stabilized chip U31 connects, the 34th voltage stabilizing The anode of pipe D34 is connected with one end of the 31st resistance R31 and one end of the 32nd resistance R32 respectively.31st electricity Hold C31 and can increase the stability of circuit, eliminate power-supply fluctuation.

In the present embodiment, the grid of the 31st metal-oxide-semiconductor Q31 and the other end of the 32nd resistance R32 connect, and the 30th The source electrode of one metal-oxide-semiconductor Q31 respectively with the other end, the anode and the 30th of the 35th diode D35 of the 31st resistance R31 The anode of six diode D36 connects, and the negative electrode of the 35th diode D35 is connected with the 4th pin of solar energy port x S1, the The minus earth of 36 diode D36, the drain electrode of the 31st metal-oxide-semiconductor Q31 respectively with the other end of the 33rd resistance R33 Connect with the 5th pin of integrated voltage-stabilized chip U31, the minus earth of the 31st electric capacity C31, the of integrated voltage-stabilized chip U6 Three pin ground connection, second pin of integrated voltage-stabilized chip U31 respectively with one end and the 37th voltage stabilizing of the 31st inductance L31 The negative electrode of pipe D37 connects, the plus earth of the 37th stabilivolt D37, and the other end of the 31st inductance L31 passes through the 30th Three electric capacity C33 ground connection, the 4th pin of integrated voltage-stabilized chip U31 connects DC source VDD.

The positive pole PV+ of solaode exports battery positive voltage BAT+ through the 32nd diode D32, solar-electricity The positive pole PV+ in pond is connected to through the 31st diode D31, battery positive voltage BAT+ through the 33rd diode D33 The negative electrode of 34 stabilivolt D34, arrives separately at earth terminal after the 34th stabilivolt D34 and the 31st resistance R31 The negative pole PV-of GND and solaode, in order to prevent electric current reverse, the 31st resistance R31 ground connection be connected to solar energy It is respectively equipped with the 35th diode D35, the 36th diode D36, the positive pole of solaode before the negative pole PV-of battery The positive pole BAT+ of PV+ and accumulator is respectively by being all connected to collection after the 31st diode D31 and the 33rd diode D33 The first pin becoming voltage stabilizing chip U31 provides working power for it.

When 5th pin of integrated voltage-stabilized chip U31 is low level, system is operated;The of integrated voltage-stabilized chip U31 When five pins are high level, system does not works;Between grid and the source electrode of the 31st metal-oxide-semiconductor Q31, voltage is more than (example during VDD As: when VDD equal to 5V time, i.e. Vgs > 5V), the 31st metal-oxide-semiconductor Q31 conducting, the now drain electrode of the 31st metal-oxide-semiconductor Q31 with Source conduction, the 5th pin ground connection of integrated voltage-stabilized chip U31, for low level, system is in running order;31st MOS Between grid and the source electrode of pipe Q31, voltage is less than (such as: when VDD is equal to 5V, i.e. Vgs < 5V) during VDD, the 31st metal-oxide-semiconductor Q31 ends, and the drain electrode of the 31st metal-oxide-semiconductor Q31 cut-off ends with source electrode, and the 5th pin of integrated voltage-stabilized chip U31 is high electricity Flat, system is in off position.34th stabilivolt D34 its voltage in the range of reasonable reverse current is constant.This Bright can effectively lightning protection, improve security of system performance, accumulator and can ensure that again the activity of accumulator, energy while being charged Extend accumulator life-span, can improve the charge efficiency to accumulator, extend accumulator the electricity consumption time, have preferable oneself open Kinetic force, avoid the occurrence of endless loop state.

In the present embodiment, control circuit 12 also includes the 32nd electric capacity C32, one end of the 32nd electric capacity C32 and the The drain electrode of 31 metal-oxide-semiconductor Q31 connects, and the other end of the 32nd electric capacity C32 connects with the 5th pin of integrated voltage-stabilized chip U31 Connect.32nd electric capacity C32 is for preventing the interference between the 31st metal-oxide-semiconductor Q31 and integrated voltage-stabilized chip U31.

In the present embodiment, control circuit 12 also includes the 34th resistance R34, one end of the 34th resistance R34 and the The negative electrode of 31 diode D31 connects, the other end of the 34th resistance R34 and first pin of integrated voltage-stabilized chip U31 Connect.In the present embodiment, control circuit 12 also includes the 35th resistance R35, one end of the 35th resistance R35 with integrated surely 4th pin of pressure chip U31 connects, and the other end of the 35th resistance R35 is connected with DC source VDD.34th resistance R34 and the 35th resistance R35 is current-limiting resistance, is used for carrying out overcurrent protection.

In the present embodiment, control circuit 12 also includes the 36th resistance R36, one end of the 36th resistance R36 and collection The second pin becoming voltage stabilizing chip U31 connects, and the other end of the 36th resistance R36 and one end of the 31st inductance L31 are even Connect.36th resistance R36 current-limiting resistance, is used for carrying out overcurrent protection.

Fig. 4 is the circuit theory diagrams of discharge circuit in the present embodiment.In Fig. 4, the DC side of inverter circuit includes the 40th One storage capacitor C41, one end of the 41st storage capacitor C41 connects with the electrode input end BUS+ of the DC side of inverter circuit Connecing, the other end of the 41st storage capacitor C41 is connected with the negative input BUS-of the DC side of inverter circuit, inverter circuit The negative input BUS-ground connection of DC side.In Fig. 3, the 41st resistance R41, the 42nd resistance R42, the 44th electricity Resistance R44, the 42nd electric capacity C42 and the 41st audion Q41 constitutes control of discharge unit, the 45th discharge resistance R45 Constituting discharge paths with the 42nd metal-oxide-semiconductor Q42, this discharge circuit 13 includes control of discharge unit and discharge paths, electric discharge control Unit processed and discharge paths are all in parallel with the 41st storage capacitor C41.Wherein, the 41st resistance R41 is current-limiting resistance, uses In carrying out overcurrent protection.41st electric capacity is coupling electric capacity, be used for preventing the 41st audion and the 42nd metal-oxide-semiconductor it Between interference.

In the present embodiment, the base stage of the 41st audion Q41 connects inverter circuit 21 by the 41st resistance R41 Power supply signal outfan VCC, the colelctor electrode of the 41st audion Q41 respectively with one end of the 42nd resistance R42, the 40th One end of four resistance R44 and one end of the 42nd electric capacity C42 connect, the other end of the 42nd resistance R42 and inverter circuit The electrode input end BUS+ of DC side connect, another of the emitter stage of the 41st audion Q41 and the 44th resistance R44 Holding equal ground connection, the grid of the 42nd metal-oxide-semiconductor Q42 and the other end of the 42nd electric capacity C42 connect, the 42nd metal-oxide-semiconductor Q42 Drain electrode be connected with the electrode input end BUS+ of the DC side of inverter circuit by the 45th discharge resistance R45, the 42nd The source ground of metal-oxide-semiconductor Q42.

When inverter circuit 21 normally works, its Switching Power Supply just can work normally, therefore the power supply of inverter circuit 21 letter Number outfan VCC will output voltage, now the 41st audion Q41 is at conducting state, the 41st audion Q41 Colelctor electrode at voltage V1 be pulled low (V1 ≈ 0 the most herein), so the voltage V2 of the grid of the 42nd metal-oxide-semiconductor Q42 It is pulled low, therefore the 42nd metal-oxide-semiconductor Q42 cut-off.So, the 45th discharge resistance R45 is in vacant state, therefore inverter circuit During 21 work, when the i.e. the 41st storage capacitor C41 need not electric discharge, it is to avoid the energy that the 45th discharge resistance R45 brings Amount loss and the long-time high-pressure work damage to the 45th discharge resistance R45.

When inverter circuit 21 is shut down, now still store on the 41st storage capacitor C41 within inverter circuit 21 Substantial amounts of electric energy.Now shut down due to inverter circuit 21, so Switching Power Supply does not start, therefore power supply signal outfan The voltage of VCC is about 0, so the voltage of the base stage of the 41st audion Q41 is about 0, therefore the 41st audion Q41 cuts Only.Then voltage V1=R44/ (R44+R42) the * V at the colelctor electrode of the 41st audion Q41BUS, V2 ≈ R44/ (R44+ R42)*VBUS, wherein, VBUSIt it is the magnitude of voltage at the 41st storage capacitor C41 two ends.So as V2 > Vth, (Vth is the 40th The threshold voltage of two metal-oxide-semiconductor Q42) time the 42nd metal-oxide-semiconductor Q42 conducting, therefore discharge paths is started working, the i.e. the 41st energy storage Electric energy inside electric capacity C41 starts electric discharge, V immediately by the 45th discharge resistance R45 and the 42nd metal-oxide-semiconductor Q42BUSJust Can reduce, until VBUSWhen being reduced to V2 less than Vth, i.e. VBUS< during Vth* (R44+R42)/R44, the 42nd metal-oxide-semiconductor Q42 cuts Only, then discharge paths stops electric discharge.

In the present embodiment, control of discharge unit controls the 42nd of discharge paths according to the switching on and shutting down of inverter circuit 21 The break-make of metal-oxide-semiconductor Q42, thus control whether the 45th discharge resistance R45 connects with the 41st storage capacitor C41, so that Electric energy on 41st storage capacitor C41 discharges to the 45th discharge resistance R45, i.e. the 4th in control of discharge unit The break-make of 11 audion Q41 is controlled by power supply signal outfan VCC, and then control of discharge unit controls in discharge paths the 4th The break-make of 12 metal-oxide-semiconductor Q42, thus effectively control the work of the 45th discharge resistance R45, therefore the 45th discharge resistance R45 can avoid under high pressure working for a long time, and the 45th discharge resistance R45 can carry out safety according to the start and stop of inverter circuit 21 Reliably work, so that discharge circuit 13 and inverter circuit 21 is safe and reliable, and decreases the 45th electric discharge electricity The loss of energy on resistance R45.

It is to say, the 41st audion Q41 and the 42nd metal-oxide-semiconductor Q42 can be quickly according to inverter circuit 21 Whether start and stop (i.e. the change of power supply signal outfan VCC) control the electric energy of the 41st storage capacitor C41 can be by the 4th 15 discharge resistance R45 discharge to safe current potential.Therefore discharge circuit 13 can not discharge when inverter circuit 21 works, at inversion electricity The 41st storage capacitor C41 electric discharge is made immediately, so that discharge circuit 13 is rational needs when when road 21 does not works Electric discharge, and then ensure that the 45th discharge resistance R45 and the safety of inverter circuit 21 work and reliability, and greatly reduce The energy consumption that 45th discharge resistance R45 brings.

It is noted that in the present embodiment, the 41st audion Q41 is NPN type triode, the 42nd metal-oxide-semiconductor Q42 is N-channel MOS pipe.Certainly, under the certain situation of the present embodiment, the 41st audion Q41 can also be positive-negative-positive three Pole is managed, and the 42nd metal-oxide-semiconductor Q42 can also be P-channel metal-oxide-semiconductor, but at this moment the circuit structure of discharge circuit 13 also can be sent out accordingly Changing.

In the present embodiment, control of discharge unit also includes the 43rd resistance R43, the transmitting of the 41st audion Q41 The 43rd resistance R43 ground connection is passed through in pole.43rd resistance R43 is current-limiting resistance, is used for carrying out overcurrent protection.This electric discharge control Unit processed also includes that the 43rd electric capacity C43, the 43rd electric capacity C43 and the 43rd resistance C43 are in parallel.43rd electric capacity C43 is shunt capacitance, for being bypassed by AC signal.

In the present embodiment, discharge paths also includes the 46th resistance R46, and the source electrode of the 42nd metal-oxide-semiconductor Q12 is by the 46 resistance R46 ground connection.46th resistance R46 is current-limiting resistance, is used for carrying out overcurrent protection.

In a word, due to the fact that and be provided with lightning protection circuit 14, thus can effectively lightning protection, improve security of system performance;Separately Outward, can ensure that again the activity of accumulator BAT while accumulator BAT is charged, it is to avoid accumulator BAT deposits, Thus extend the life-span of accumulator BAT largely, filling of the loss of voltage more traditional use diode of charging circuit 11 Electricity circuit reduces nearly half, improves the solaode PV charge efficiency to accumulator BAT, and the more non-PWM of charge efficiency is high 3%-6%, extends the electricity consumption time of accumulator BAT, control circuit 12 has good self-startup ability, it is to avoid existing skill The endless loop state often occurred in art, discharge circuit 13 compared to existing technology, its use the 41st audion Q41, the 40th Two metal-oxide-semiconductor Q42 and the 45th discharge resistance R45 instead of original independent discharge resistance, so can be according to inverter circuit The on off control discharge circuit 13 of 21 works in reasonable time, thus improves the 45th discharge resistance R45 and electric discharge The safety of circuit 13 work and reliability, and the thermal losses on the 45th discharge resistance R45 can be reduced.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (6)

1. one kind have charging, control and the solar control system of discharging function, it is characterised in that include solaode, Controller for solar, accumulator and transducer air conditioning, described controller for solar includes charging circuit, control circuit, thunder-lightning Road and discharge circuit, described transducer air conditioning includes inverter circuit and compressor, described solaode and described charging circuit Connecting, described charging circuit is connected with described discharge circuit by described control circuit, and described charging circuit and discharge circuit are also All being connected with described accumulator, described control circuit is connected with described accumulator by described lightning protection circuit, described discharge circuit It is connected with described compressor also by described inverter circuit;
Described charging circuit include the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th resistance, 16 resistance, the 17th resistance, the 11st electric capacity, the 12nd electric capacity, the 11st stabilivolt, the 11st audion, the 12nd Pole pipe, the 13rd metal-oxide-semiconductor and the 14th metal-oxide-semiconductor, the base stage of described 11st audion connects with one end of described 11st resistance Connecing, the other end of described 11st resistance is connected with described control circuit, and the emitter stage of described 11st audion connects direct current Power supply, the colelctor electrode of described 11st audion by described 12nd resistance respectively with one end of described 11st electric capacity and the One end of 13 resistance connects, the base stage of described 12nd audion respectively with the other end and the 14th of described 11st electric capacity One end of resistance connects, the colelctor electrode of described 12nd audion respectively with one end and the 15th resistance of described 12nd electric capacity One end connect, the other end of described 15th resistance is connected with described DC source, and the other end of described 12nd electric capacity is logical Cross described 17th resistance respectively with grid, the negative electrode of the 11st stabilivolt and the 14th metal-oxide-semiconductor of described 13rd metal-oxide-semiconductor Grid connects, the emitter stage of described 12nd audion by described 16th resistance respectively with the source of described 13rd metal-oxide-semiconductor The source electrode of pole, the anode of the 11st stabilivolt and the 14th metal-oxide-semiconductor connects, and the anode of described 11st stabilivolt is also with described the The other end of 14 resistance connects, the other end of described 13rd resistance respectively with the drain electrode of described 13rd metal-oxide-semiconductor and described The negative pole of solaode connects, and the drain electrode of described 14th metal-oxide-semiconductor is connected with the negative pole of described accumulator, described solar-electricity The positive pole in pond is connected with the positive pole of described accumulator;
Described control circuit includes solar control port, the 31st diode, the 32nd diode, the 33rd pole Pipe, the 34th stabilivolt, the 35th diode, the 36th diode, the 37th stabilivolt, the 31st resistance, 32nd resistance, the 33rd resistance, the 31st electric capacity, the 33rd electric capacity, the 31st metal-oxide-semiconductor, integrated voltage-stabilized core Sheet and the 31st inductance, the first pin of described solar energy port and the second pin are all with the positive pole of described solaode even Connecing, the 3rd pin of described solar energy port and the 4th pin all negative poles with described solaode are connected, described solar energy Second pin of port is connected with the described anode of the 31st diode and the anode of the 32nd diode the most respectively, described The negative electrode of the 32nd diode and the anode of the 33rd diode all positive poles with described accumulator are connected, and the described 30th The negative electrode of one diode respectively with the negative electrode of described 33rd diode, the negative electrode of the 34th stabilivolt, the 33rd electricity First pin of one end, the positive pole of the 31st electric capacity and the integrated voltage-stabilized chip of resistance connects, described 34th stabilivolt Anode is connected with described one end of 31st resistance and one end of the 32nd resistance respectively, described 31st metal-oxide-semiconductor Grid is connected with the other end of described 32nd resistance, and the source electrode of described 31st metal-oxide-semiconductor is respectively with the described 31st The anode of the other end of resistance, the anode of the 35th diode and the 36th diode connects, described 35th pole The negative electrode of pipe is connected with the 4th pin of described solar energy port, the minus earth of described 36th diode, and the described 3rd The drain electrode of 11 metal-oxide-semiconductors is connected with the described other end of the 33rd resistance and the 5th pin of integrated voltage-stabilized chip respectively, institute State the minus earth of the 31st electric capacity, the 3rd pin ground connection of described integrated voltage-stabilized chip, the of described integrated voltage-stabilized chip Two pins are connected with described one end of 31st inductance and the negative electrode of the 37th stabilivolt respectively, described 37th voltage stabilizing The plus earth of pipe, the other end of described 31st inductance passes through described 33rd capacity earth, described integrated voltage-stabilized core 4th pin of sheet connects described DC source;
The DC side of described inverter circuit includes the 41st storage capacitor, and one end of described 41st storage capacitor is with described The electrode input end of the DC side of inverter circuit connects, the other end of described 41st storage capacitor and described inverter circuit The negative input of DC side connects, and the negative input ground connection of the DC side of described inverter circuit, described discharge circuit includes The control of discharge unit in parallel with described 41st storage capacitor and discharge paths, described control of discharge unit includes the 40th One resistance, the 42nd resistance, the 44th resistance, the 42nd electric capacity and the 41st audion, described discharge paths bag Including the 45th discharge resistance and the 42nd metal-oxide-semiconductor, the base stage of described 41st audion is by described 41st electricity Resistance connects the power supply signal outfan of described inverter circuit, and the colelctor electrode of described 41st audion is respectively with the described 40th One end of one end of two resistance, one end of the 44th resistance and the 42nd electric capacity connects, described 42nd resistance another One end is connected with the electrode input end of the DC side of described inverter circuit, the emitter stage and the 40th of described 41st audion The equal ground connection of the other end of four resistance, the grid of described 42nd metal-oxide-semiconductor is connected with the other end of described 42nd electric capacity, institute The drain electrode stating the 42nd metal-oxide-semiconductor is inputted by the positive pole of described 45th discharge resistance with the DC side of described inverter circuit End connects, the source ground of described 42nd metal-oxide-semiconductor.
The most according to claim 1 have charging, control and the solar control system of discharging function, it is characterised in that Described control of discharge unit also includes the 43rd resistance, and the emitter stage of described 41st audion passes through the described 43rd Resistance eutral grounding.
The most according to claim 2 have charging, control and the solar control system of discharging function, it is characterised in that Described control of discharge unit also includes the 43rd electric capacity, described 43rd electric capacity and described 43rd resistor coupled in parallel.
4. according to described in claims 1 to 3 any one have charging, control and the solar control system of discharging function, It is characterized in that, described discharge paths also includes the 46th resistance, and the source electrode of described 42nd metal-oxide-semiconductor passes through the described 4th 16 resistance eutral groundings.
The most according to claim 4 have charging, control and the solar control system of discharging function, it is characterised in that Described 41st audion is NPN type triode.
The most according to claim 4 have charging, control and the solar control system of discharging function, it is characterised in that Described 42nd metal-oxide-semiconductor is N-channel MOS pipe.
CN201610724322.XA 2016-08-25 2016-08-25 There is charging, control and the solar control system of discharging function CN106300598A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109358246A (en) * 2018-10-19 2019-02-19 福建和盛高科技产业有限公司 A kind of solar charging power detection circuit and detection method based on common-anode charger
CN110460142A (en) * 2019-08-28 2019-11-15 李美玉 A kind of solar power supply circuit and its control method

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CN202076807U (en) * 2010-11-25 2011-12-14 江苏银佳企业集团有限公司 Solar charging circuit
CN202957763U (en) * 2012-10-26 2013-05-29 比亚迪股份有限公司 Discharge circuit for inverter
CN204068347U (en) * 2014-08-11 2014-12-31 安徽四创电子股份有限公司 A kind of solar control circuit
CN205195394U (en) * 2015-04-28 2016-04-27 周磊 Solar air conditioning system with lightning protection solar control ware

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202076807U (en) * 2010-11-25 2011-12-14 江苏银佳企业集团有限公司 Solar charging circuit
CN202957763U (en) * 2012-10-26 2013-05-29 比亚迪股份有限公司 Discharge circuit for inverter
CN204068347U (en) * 2014-08-11 2014-12-31 安徽四创电子股份有限公司 A kind of solar control circuit
CN205195394U (en) * 2015-04-28 2016-04-27 周磊 Solar air conditioning system with lightning protection solar control ware

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109358246A (en) * 2018-10-19 2019-02-19 福建和盛高科技产业有限公司 A kind of solar charging power detection circuit and detection method based on common-anode charger
CN110460142A (en) * 2019-08-28 2019-11-15 李美玉 A kind of solar power supply circuit and its control method
CN110460142B (en) * 2019-08-28 2020-05-08 博阳能源科技有限公司 Solar power supply circuit and control method thereof

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Application publication date: 20170104