CN106300601A - There is the solar air-conditioner system of charging and H bridge inversion - Google Patents
There is the solar air-conditioner system of charging and H bridge inversion Download PDFInfo
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- CN106300601A CN106300601A CN201610726581.6A CN201610726581A CN106300601A CN 106300601 A CN106300601 A CN 106300601A CN 201610726581 A CN201610726581 A CN 201610726581A CN 106300601 A CN106300601 A CN 106300601A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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
The invention discloses a kind of solar air-conditioner system with charging and H bridge inversion, 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, charging circuit includes the 21st to the 22nd diode, 23rd light emitting diode, 20th to the 28th resistance, 21st to the 22nd critesistor, 21st audion, 21st electric capacity, 22nd electric capacity and the 21st charging management chip, inverter circuit includes the 51st to the 52nd IGBT pipe, 53rd to the 54th metal-oxide-semiconductor, 51st to the 54th diode, 51st to the 52nd resistance.The present invention can effectively lightning protection, improve security of system performance, easy for installation, cost is relatively low, though the higher load of reliability is or to have higher efficiency under fully loaded work under underloading works.
Description
Technical field
The present invention relates to solar airconditioning field, particularly to a kind of solar airconditioning system with charging and H bridge inversion
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, the most unavoidably need to lay power line, can bring about a large amount of construction and great number cost, its cost can be significantly
Rise.It addition, electromagnetic interference also can affect solar air-conditioner system, when it uses, reliability is the highest.
In the design of common H-bridge inverter circuit is applied, four brachium pontis use identical power switch pipe (to use IGBT
Pipe or metal-oxide-semiconductor), whether use the H-bridge inverter circuit of IGBT pipe composition, or the H-bridge inverter circuit of employing metal-oxide-semiconductor composition,
The most all there are some problems.The problem existed is as follows: when 1, using IGBT pipe, due to IGBT pipe conduction voltage drop
Nonlinear characteristic makes the conduction voltage drop of IGBT pipe can't dramatically increase along with the increase of conducting electric current, is operating at full capacity
Time, inversion conversion efficiency is higher；Conversely, as the nonlinear characteristic of IGBT pipe conduction voltage drop makes the conduction voltage drop of IGBT pipe also
Will not be substantially reduced along with the reduction of conducting electric current, in the light hours, inversion conversion efficiency is relatively low.On the other hand be by
Low in the switching frequency of IGBT pipe, the frequency characteristic of the H-bridge inverter circuit being therefore made up of IGBT pipe is undesirable.2, MOS is used
Guan Shi, frequency characteristic improves, but owing to the conduction voltage drop of metal-oxide-semiconductor is linear so that the conduction voltage drop of metal-oxide-semiconductor can be along with leading
Alive increase and dramatically increase, when operating at full capacity, inversion conversion efficiency is relatively low；Otherwise, the conduction voltage drop of metal-oxide-semiconductor is also
Can be substantially reduced along with the reduction of conducting electric current, in the light hours, inversion conversion efficiency is of a relatively high.3, inversion efficiency can be with
Prime DC source changed power and change.Using the H-bridge inverter circuit of IGBT pipe composition, inversion efficiency can be with prime DC source merit
The increase of rate and increase；Using the H-bridge inverter circuit of metal-oxide-semiconductor composition, inversion efficiency can be with the increase of prime DC source power
Reduce.In photovoltaic inversion device or wind power generation inverter, it is more prominent that the shortcoming of this circuit manifests.
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-
No matter thunder, improve security of system performance, easy for installation, cost is relatively low, reliability higher load be underloading work under or
The solar air-conditioner system with charging and H bridge inversion of higher efficiency is had under fully loaded work.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of have charging and H bridge inversion too
Sun energy air conditioning system, including solaode, controller for solar, accumulator and transducer air conditioning, described controller for solar
Including charging circuit, control circuit, lightning protection circuit and discharge circuit, described transducer air conditioning includes inverter circuit and compressor,
Described solaode is connected with described charging circuit, and described charging circuit is by described control circuit with described discharge circuit even
Connecing, described charging circuit and discharge circuit are the most all connected with described accumulator, described control circuit by described lightning protection circuit with
Described accumulator connects, and described discharge circuit is connected with described compressor also by described inverter circuit；
Described charging circuit include the 21st diode, the 22nd diode, the 23rd light emitting diode, second
Ten resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, second
16 resistance, the 27th resistance, the 28th resistance, the 21st critesistor, the 22nd critesistor, the 21st
Audion, the 21st electric capacity, the 22nd electric capacity and the 21st charging management chip, the sun of described 21st diode
Pole is connected with the positive pole of described solaode, the negative electrode of described 21st diode respectively with described 21st electric capacity
One end, one end of the 20th resistance, one end of the 21st resistance, one end of the 23rd resistance, the 21st critesistor
One end connect, the other end ground connection of described 21st electric capacity is also connected with the 6th pin of described charging management chip, institute
3rd pin of the other end and described charging management chip of stating the 20th resistance is connected, the other end of described 21st resistance
It is connected with described one end of 22nd resistance and the 8th pin of charging management chip respectively, described 22nd resistance another
One end is connected with the first pin of described charging management chip, and the other end of described 23rd resistance is respectively with the described 20th
One end of four resistance and the emitter stage of the 21st audion connect, the other end of described 24th resistance and described charging valve
First pin of reason chip connects, and the base stage of described 21st audion is by described 25th resistance and described charging valve
7th pin of reason chip connects, and the colelctor electrode of described 21st audion passes through described 26th resistance and described second
The anode of 12 diodes connects, the negative electrode of described 22nd diode second drawing with described charging management chip respectively
The positive pole of foot, one end of the 22nd electric capacity and accumulator connects, the other end ground connection of described 22nd electric capacity, and described second
The other end of 11 critesistor is connected with described one end of 28th resistance and one end of the 22nd critesistor respectively,
The described other end of the 28th resistance is connected with the 4th pin of described charging management chip, described 22nd critesistor
Other end ground connection, the 5th pin of described charging management chip is 23rd luminous with described by described 27th resistance
The anode of diode connects, the minus earth of described 23rd light emitting diode；
Described inverter circuit include the 51st IGBT pipe, the 52nd IGBT pipe, the 53rd metal-oxide-semiconductor, the 54th
Metal-oxide-semiconductor, the 51st diode, the 52nd diode, the 53rd diode, the 54th diode, the 51st electricity
Resistance, the 52nd resistance, the first alternating current, the second alternating current and alternating current source, the colelctor electrode of described 51st IGBT pipe passes through
Described 51st resistance is connected with described DC source, the anode of described 51st diode and described 51st IGBT
The emitter stage of pipe connects, and the negative electrode of described 51st diode is connected with described DC source, described 52nd IGBT pipe
Colelctor electrode be connected with described DC source by described 52nd resistance, the anode of described 52nd diode is with described
The emitter stage of the 52nd IGBT pipe connects, and the negative electrode of described 52nd diode is connected with described DC source, and described the
The emitter stage of 51 IGBT pipes is connected with one end of described first alternating current and the drain electrode of the 53rd metal-oxide-semiconductor the most respectively, institute
State the source ground of the 53rd metal-oxide-semiconductor, the plus earth of described 53rd diode, the moon of described 53rd diode
Pole is connected with the drain electrode of described 53rd metal-oxide-semiconductor, and the emitter stage of described 52nd IGBT pipe exchanges with described second respectively
One end of electricity and the drain electrode of the 54th metal-oxide-semiconductor connect, and the other end of described first alternating current passes through described alternating current source with described
The other end of the second alternating current connects, and the source ground of described 54th metal-oxide-semiconductor, the anode of described 54th diode connects
Ground, the negative electrode of described 54th diode is connected with the drain electrode of described 54th metal-oxide-semiconductor.
In the solar air-conditioner system with charging and H bridge inversion of the present invention, described inverter circuit also includes
53rd resistance and the 54th resistance, one end of described 53rd resistance and the emitter stage of described 51st IGBT pipe
Connecting, the other end of described 53rd resistance is connected with the drain electrode of described 53rd metal-oxide-semiconductor, described 54th resistance
One end is connected with the emitter stage of described 52nd IGBT pipe, the other end and the described 54th of described 54th resistance
The drain electrode of metal-oxide-semiconductor connects.
In the solar air-conditioner system with charging and H bridge inversion of the present invention, described inverter circuit also includes
55th resistance and the 56th resistance, one end of described 55th resistance connects with the source electrode of described 53rd metal-oxide-semiconductor
Connect, the other end ground connection of described 55th resistance, one end of described 56th resistance and the source of described 54th metal-oxide-semiconductor
Pole connects, the other end ground connection of described 56th resistance.
In the solar air-conditioner system with charging and H bridge inversion of the present invention, described 51st IGBT pipe
It is N-type IGBT pipe with the 52nd IGBT pipe.
Of the present invention have charging and H bridge inversion solar air-conditioner system in, described 53rd metal-oxide-semiconductor and
54th metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
Implement the solar air-conditioner system with charging and H bridge inversion of the present invention, have the advantages that owing to setting
Have lightning protection circuit, thus can effectively lightning protection, improve security of system performance；It addition, solaode converts the solar into
Electric energy, whole charging circuit is managed by charging management chip, it is ensured that air conditioner energy needs, and can avoid laying power supply simultaneously
Construction and the great number cost in a large number that tape comes, moreover it is possible to reducing the electromagnetic interference impact on system, inverter circuit is relative to existing H
Bridge inverter circuit, no matter load is in underloading work or under fully loaded working condition, has higher efficiency, has substantially
Energy-saving effect；So its can effectively lightning protection, improve security of system performance, easy for installation, cost is relatively low, reliability is higher,
No matter load is to have higher efficiency under underloading works or under fully loaded work.
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 structural representation that the present invention has in one embodiment of solar air-conditioner system of charging and H bridge inversion；
Fig. 2 is the circuit theory diagrams of charging circuit in described embodiment；
Fig. 3 is the circuit theory diagrams of inverter 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.
In the solar air-conditioner system embodiment that the present invention has charging and H bridge inversion, this has charging and H bridge inversion
Solar air-conditioner system structural representation as shown in Figure 1.In Fig. 1, this has the solar airconditioning system of charging and H bridge inversion
System includes solaode PV, controller for solar 1, accumulator BAT and transducer air conditioning 2, and wherein, controller for solar 1 wraps
Including charging circuit 11, control circuit 12, lightning protection circuit 14 and discharge circuit 13, transducer air conditioning 2 includes inverter circuit 21 and pressure
Contracting machine 22, solaode PV is connected with charging circuit 11, and charging circuit 11 is connected with discharge circuit 13 by control circuit 12,
Charging circuit 11 and discharge circuit 13 are also all connected with accumulator BAT, and control circuit 12 is by lightning protection circuit 14 and accumulator BAT
Connecting, discharge circuit 13 is connected with compressor 22 also by inverter circuit 21.Solaode PV is the radiation of the sun to be changed
For electric energy, or it is sent in accumulator BAT store, or promotes transducer air conditioning 2 to work.The effect of controller for solar 1 is
Control the duty of the whole solar air-conditioner system with charging and H bridge inversion, and accumulator BAT is played overcharge guarantor
Protect the effect with over.The effect of accumulator BAT is the electric energy storage sent by solaode PV when there being illumination
Store away, discharge again the when of to needs.Transducer air conditioning 2, can speed governing easily as alternating current source.
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 21st pole
Pipe D21, the 22nd diode D22, the 23rd LED the 23, the 20th resistance R20, the 21st resistance
R21, the 22nd resistance R22, the 23rd resistance R23, the 24th resistance R24, the 25th resistance R25, the 26th
Resistance R26, the 27th resistance R27, the 28th resistance R28, the 21st critesistor RT21, the 22nd critesistor
RT22, the 21st audion Q21, the 21st electric capacity C21, the 22nd electric capacity C22 and the 21st charging management chip
U21, wherein, the 20th resistance R20, the 24th resistance R24, the 26th resistance R26 and the 28th resistance R28 are all limited
Leakage resistance, is used for carrying out overcurrent protection, improves the security performance of system.
Wherein, the anode of the 21st diode D21 is connected with the positive pole PV+ of solaode, the 21st diode
The negative electrode of D21 respectively with one end of the 21st electric capacity C21, one end of the 20th resistance R20, the one of the 21st resistance R21
End, one end of the 23rd resistance R23, one end of the 21st critesistor RT21 connect, another of the 21st electric capacity C21
End ground connection is also connected with the 6th pin of charging management chip U21, the other end of the 20th resistance R20 and charging management chip
3rd pin of U21 connects, the other end of the 21st resistance R21 respectively with one end and the charging valve of the 22nd resistance R22
8th pin of reason chip U21 connects, and the other end of the 22nd resistance R22 connects with first pin of charging management chip U21
Connect, the other end of the 23rd resistance R23 respectively with the sending out of one end of the 24th resistance R24 and the 21st audion Q21
Emitter-base bandgap grading connects, and the other end of the 24th resistance R24 is connected with first pin of charging management chip U21.
In the present embodiment, the base stage of the 21st audion Q21 passes through the 25th resistance R25 and charging management chip
7th pin of U21 connects, and the colelctor electrode of the 21st audion Q21 passes through the 26th resistance R26 and the 22nd pole
The anode of pipe D22 connects, the negative electrode of the 22nd diode D22 respectively with second pin of charging management chip U21, the 20th
One end of two electric capacity C22 and the positive pole BAT+ of accumulator connect, the other end ground connection of the 22nd electric capacity C22, the 21st heat
The other end of quick resistance RT21 connects with one end of the 28th resistance R28 and one end of the 22nd critesistor RT22 respectively
Connecing, the other end of the 28th resistance R28 is connected with the 4th pin of charging management chip U21, the 22nd critesistor
The other end ground connection of RT22, the 5th pin of charging management chip U21 passes through the 27th resistance R27 and the 23rd luminescence two
The anode of pole pipe LED23 connects, the minus earth of the 23rd LED 23.
In the present embodiment, first pin of charging management chip U21 is charging current sensing input, and the second pin is electric power storage
Cell voltage inputs, and the 3rd pin is working power input, and the 4th pin is temperature sensing input, and the 5th pin is that charged state is defeated
Go out, the 6th pin be working power input, the 7th pin for charging control output, the 8th pin be charge rate compensate defeated
Enter.Solar panel PV provides charging voltage for this charging circuit 11, and the 21st diode D21 is for reversely cut-off, anti-
The only reverse power transmission of charging circuit 11, the 21st electric capacity C21 is the filter capacitor of charging management chip U21, the 22nd electric capacity
C22 is the filter capacitor of output charging voltage, and the 22nd diode D21, for reversely cut-off, prevents because of the 21st
There is leakage current and cause the kwh loss of accumulator BAT in pole pipe Q21.
In the present embodiment, first pin of charging management chip U21 can detect the pressure drop of the 23rd resistance R23, from
And controlling charging current, the second pin is used for detecting charging voltage and cell voltage, and the 3rd pin and the 6th pin are used for
Cut-in operation power supply, the 4th pin can be stored by the 21st critesistor RT11 and the 22nd critesistor RT22 detection
The temperature of battery BAT, prevents from charging when the temperature of accumulator BAT is too high, owing to this charging circuit 11 is not required to detect accumulator
The temperature of BAT, therefore the 21st critesistor RT11 and the 22nd critesistor RT22 is set to similar resistance, the 5th pin
Exporting for charged state, when charging, the 23rd LED 23 is bright, the 23rd light emitting diode after being full of
LED23 goes out, and the 7th pin controls, by the 25th resistance R25, the size of current that the 21st audion Q21 passes through, thus rises
To the effect of control charging current, the 8th pin is by dividing between detection the 21st resistance R21 and the 22nd resistance R22
Pressure, to compensate the pressure drop in the internal driving of accumulator BAT and circuit, thus improves charge rate.
This charging circuit 11 can utilize solaode PV to accumulator BAT electric energy supplement, wherein solaode PV
Solar energy is converted into electric energy, and whole charging circuit 11 is managed by charging management chip U21, it is ensured that the energy of air-conditioning needs
Want, can avoid laying a large amount of constructions and the great number cost that power line brings simultaneously, also can reduce electromagnetic interference and this is had charging
The impact of the solar air-conditioner system controlled.Therefore this charging circuit 11 has easy for installation, with low cost and service-strong
Advantage.
Fig. 3 is the circuit theory diagrams of inverter circuit in the present embodiment.In Fig. 3, this inverter circuit 21 includes the 51st
IGBT pipe Q51, the 52nd IGBT pipe Q52, the 53rd metal-oxide-semiconductor Q53, the 54th metal-oxide-semiconductor Q54, the 51st diode
D51, the 52nd diode D52, the 53rd diode D53, the 54th diode D54, the 51st resistance R51,
52 resistance R52, the first alternating current AC1, the second alternating current AC2 and alternating current source.Wherein, the 51st IGBT pipe and the 50th
Two IGBT pipe Q52 are the power switch component of upper half-bridge, and the 53rd metal-oxide-semiconductor Q53 and the 54th metal-oxide-semiconductor Q54 is lower half-bridge
Power switch component.51st resistance R51 and the 52nd resistance R52 is current-limiting resistance, is used for carrying out overcurrent protection,
The security performance of raising system.
In the present embodiment, the colelctor electrode of the 51st IGBT pipe Q51 is by the 51st resistance R51 and DC source VDD
Connecting, the anode of the 51st diode D51 and the emitter stage of the 51st IGBT pipe Q51 connect, the 51st diode D51
Negative electrode be connected with DC source VDD, the 51st diode D51 is the protection diode of the 51st IGBT pipe Q51.5th
The colelctor electrode of 12 IGBT pipe Q52 is connected with DC source VDD by the 52nd resistance R52, the 52nd diode D52's
The emitter stage of anode and the 52nd IGBT pipe Q52 connects, and the negative electrode of the 52nd diode D52 is connected with DC source VDD,
52nd diode D52 is the protection diode of the 52nd IGBT pipe Q52.
In the present embodiment, the emitter stage of the 51st IGBT pipe Q51 the most respectively with one end and the 5th of the first alternating current AC1
The drain electrode of 13 metal-oxide-semiconductor Q53 connects, and the source ground of the 53rd metal-oxide-semiconductor Q53, the anode of the 53rd diode D53 connects
Ground, the drain electrode connection of the negative electrode of the 53rd diode D53 and the 53rd metal-oxide-semiconductor Q53, the 53rd diode D53 is the
The protection diode of 53 metal-oxide-semiconductor Q53.The emitter stage of the 52nd IGBT pipe Q52 respectively with one end of the second alternating current AC2
Connecting with the drain electrode of the 54th metal-oxide-semiconductor Q54, the other end of the first alternating current AC1 is by alternating current source and the second alternating current AC2
The other end connects, the source ground of the 54th metal-oxide-semiconductor Q54, the plus earth of the 54th diode D54, and the 54th
The negative electrode of pole pipe D54 and the drain electrode of the 54th metal-oxide-semiconductor Q54 connect.54th diode D54 is the 54th metal-oxide-semiconductor Q54
Protection diode.
When the pwm control signal of control circuit 12 controls the 51st IGBT pipe Q51 conducting, the 52nd IGBT pipe Q52
Turning off, the SPWM control signal of control circuit 12 controls the 54th metal-oxide-semiconductor Q54 conducting simultaneously, the 53rd metal-oxide-semiconductor Q53 closes
Time disconnected, the sense of current by DC source VDD through the 51st IGBT pipe Q51, the first alternating current AC1, alternating current source, the second alternating current
AC2, the 54th metal-oxide-semiconductor Q54 to ground connection GND；When the pwm control signal of control circuit 12 controls the 52nd IGBT pipe Q52
Conducting, the 51st IGBT pipe Q51 turn off；Simultaneously SPWM control signal control the 53rd metal-oxide-semiconductor Q53 conducting, the 54th
Metal-oxide-semiconductor Q54 turn off time, the sense of current by DC source VDD through the 52nd IGBT pipe Q52, the second alternating current AC2, alternating current source,
First alternating current AC1, the 53rd metal-oxide-semiconductor Q53 to ground connection GND；In a cycle period, the electric current that alternating current source flows through is
Exchange.The amplitude of the alternating current that inversion goes out is determined by frequency and the dutycycle of SPWM control signal.
In the present invention, the 51st IGBT pipe Q51 and the 52nd IGBT pipe Q52 of upper arm are only operated in 50Hz, and traditional
In technology, up and down to arm pipe work in same frequency, the present invention and compared with the existing technology greatly reduce the switch of pipe
Frequency, therefore decreases inverter to the electromagnetic interference of electrical network and pollution.
On operation control manner, inverter circuit 21 uses bifrequency (a road high frequency and a road low frequency) control mode.On
51st IGBT pipe Q51 of half-bridge and the 52nd IGBT pipe Q52 is only used as current polarity and controls device, by a PWM control
Signal processed controls the polarity of the sinusoidal ac that inversion goes out, and is operated in power frequency 50Hz；53rd metal-oxide-semiconductor Q53 of lower half-bridge and
54th metal-oxide-semiconductor Q54 carries out SPWM high frequency switching, the 2nd SPWM control signal control the simple alternating current of inverter circuit output
The amplitude of electricity, its operating frequency is at 20kHz～40KHz.
In the present embodiment, inverter circuit 21 also includes the 53rd resistance R53 and the 54th resistance R54, the 53rd
One end of resistance R53 is connected with the emitter stage of the 51st IGBT pipe Q51, the other end and the 50th of the 53rd resistance R53
The drain electrode of three metal-oxide-semiconductor Q53 connects, and one end of the 54th resistance R54 is connected with the emitter stage of the 52nd IGBT pipe Q52, the
The other end of 54 resistance R54 and the drain electrode of the 54th metal-oxide-semiconductor Q54 connect.53rd resistance R53 and the 54th electricity
Resistance R54 is current-limiting resistance, is used for carrying out overcurrent protection, promotes the security performance of system further.
In the present embodiment, this inverter circuit 21 also includes the 55th resistance R55 and the 56th resistance R56, the 50th
One end of five resistance R55 is connected with the source electrode of the 53rd metal-oxide-semiconductor Q53, the other end ground connection of the 55th resistance R55, and the 5th
One end of 16 resistance R56 is connected with the source electrode of the 54th metal-oxide-semiconductor Q54, the other end ground connection of the 56th resistance R56.The
55 resistance R55 and the 56th resistance R56 are current-limiting resistance, are used for carrying out overcurrent protection, further promote system
Security performance.
In the present embodiment, the 51st IGBT pipe Q51 and the 52nd IGBT pipe Q52 is N-type IGBT pipe.53rd
Metal-oxide-semiconductor Q53 and the 54th metal-oxide-semiconductor Q54 is P-channel metal-oxide-semiconductor.Certainly, under the certain situation of the present embodiment, the 51st
IGBT pipe Q51 and the 52nd IGBT pipe Q52 can also manage for p-type IGBT, the 53rd metal-oxide-semiconductor Q53 and the 54th metal-oxide-semiconductor
Q54 can also be N-channel MOS pipe, but at this moment the circuit structure of inverter circuit 21 also to change accordingly.
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, charging circuit 11 has easy for installation, with low cost and service-strong advantage.
51 IGBT pipe Q51 of the upper half-bridge of inverter circuit 21 and the 52nd IGBT pipe Q52 are only used as current polarity
Controlling device, its switching frequency only has 50Hz, takes full advantage of the characteristic of the low conduction voltage drop of big electric current of IGBT pipe, avoids
The weakness of IGBT pipe high frequency characteristics difference, thus reduce the output electromagnetic interference of total losses and inverter.By lower half-bridge the 50th
Three metal-oxide-semiconductor Q53 and the 54th metal-oxide-semiconductor Q54 control the amplitude of the sinusoidal ac of inverter circuit 21 output, its switching frequency work
Making at about 30KHz, the high frequency characteristics and the conduction voltage drop that take full advantage of metal-oxide-semiconductor are linear characteristics, to adapt to AC load
Change and the change of prime DC source power.Compared with the existing technology greatly reduce the switching frequency of pipe, therefore reduce
Inverter is to the electromagnetic interference of electrical network and pollution.
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 (5)
1. a solar air-conditioner system with charging and H bridge inversion, it is characterised in that include solaode, solar energy
Controller, accumulator and transducer air conditioning, described controller for solar includes charging circuit, control circuit, lightning protection circuit and puts
Electricity circuit, described transducer air conditioning includes that inverter circuit and compressor, described solaode are connected with described charging circuit, institute
Stating charging circuit to be connected with described discharge circuit by described control circuit, described charging circuit and discharge circuit are the most all with described
Accumulator connects, and described control circuit is connected with described accumulator by described lightning protection circuit, and described discharge circuit is also by institute
State inverter circuit to be connected with described compressor；
Described charging circuit includes the 21st diode, the 22nd diode, the 23rd light emitting diode, the 20th electricity
Resistance, the 21st resistance, the 22nd resistance, the 23rd resistance, the 24th resistance, the 25th resistance, the 26th
Resistance, the 27th resistance, the 28th resistance, the 21st critesistor, the 22nd critesistor, the 21st pole
Pipe, the 21st electric capacity, the 22nd electric capacity and the 21st charging management chip, the anode of described 21st diode with
The positive pole of described solaode connects, the negative electrode of described 21st diode respectively with the one of described 21st electric capacity
End, one end of the 20th resistance, one end of the 21st resistance, one end of the 23rd resistance, the 21st critesistor
One end connects, and the other end ground connection of described 21st electric capacity is also connected with the 6th pin of described charging management chip, described
The other end of the 20th resistance is connected with the 3rd pin of described charging management chip, and the other end of described 21st resistance divides
It is not connected with described one end of 22nd resistance and the 8th pin of charging management chip, another of described 22nd resistance
End is connected with the first pin of described charging management chip, and the other end of described 23rd resistance is respectively with the described 24th
One end of resistance and the emitter stage of the 21st audion connect, the other end of described 24th resistance and described Charge Management
First pin of chip connects, and the base stage of described 21st audion is by described 25th resistance and described Charge Management
7th pin of chip connects, and the colelctor electrode of described 21st audion passes through described 26th resistance and the described 20th
The anode of two diodes connects, the negative electrode of described 22nd diode respectively with the second pin of described charging management chip,
One end of 22nd electric capacity and the positive pole of accumulator connect, the other end ground connection of described 22nd electric capacity, and the described 20th
The other end of one critesistor is connected with described one end of 28th resistance and one end of the 22nd critesistor respectively, institute
4th pin of the other end and described charging management chip of stating the 28th resistance is connected, described 22nd critesistor
Other end ground connection, the 5th pin of described charging management chip is by described 27th resistance and described 23rd luminescence two
The anode of pole pipe connects, the minus earth of described 23rd light emitting diode；
Described inverter circuit includes the 51st IGBT pipe, the 52nd IGBT pipe, the 53rd metal-oxide-semiconductor, the 54th MOS
Pipe, the 51st diode, the 52nd diode, the 53rd diode, the 54th diode, the 51st resistance,
52nd resistance, the first alternating current, the second alternating current and alternating current source, the colelctor electrode of described 51st IGBT pipe is by described
51st resistance is connected with described DC source, the anode of described 51st diode and described 51st IGBT pipe
Emitter stage connects, and the negative electrode of described 51st diode is connected with described DC source, the collection of described 52nd IGBT pipe
Electrode is connected with described DC source by described 52nd resistance, the anode and the described 5th of described 52nd diode
The emitter stage of 12 IGBT pipes connects, and the negative electrode of described 52nd diode is connected with described DC source, and the described 50th
The emitter stage of one IGBT pipe is connected with one end of described first alternating current and the drain electrode of the 53rd metal-oxide-semiconductor the most respectively, and described
The source ground of 53 metal-oxide-semiconductors, the plus earth of described 53rd diode, the negative electrode of described 53rd diode with
The drain electrode of described 53rd metal-oxide-semiconductor connects, the emitter stage of described 52nd IGBT pipe respectively with described second alternating current
The drain electrode of one end and the 54th metal-oxide-semiconductor connects, and the other end of described first alternating current passes through described alternating current source and described second
The other end of alternating current connects, the source ground of described 54th metal-oxide-semiconductor, the plus earth of described 54th diode,
The negative electrode of described 54th diode is connected with the drain electrode of described 54th metal-oxide-semiconductor.
The solar air-conditioner system with charging and H bridge inversion the most according to claim 1, it is characterised in that described inverse
Power transformation road also includes the 53rd resistance and the 54th resistance, one end and the described 51st of described 53rd resistance
The emitter stage of IGBT pipe connects, and the other end of described 53rd resistance is connected with the drain electrode of described 53rd metal-oxide-semiconductor, described
One end of 54th resistance is connected with the emitter stage of described 52nd IGBT pipe, the other end of described 54th resistance with
The drain electrode of described 54th metal-oxide-semiconductor connects.
The solar air-conditioner system with charging and H bridge inversion the most according to claim 2, it is characterised in that described inverse
Power transformation road also includes the 55th resistance and the 56th resistance, one end and the described 53rd of described 55th resistance
The source electrode of metal-oxide-semiconductor connects, the other end ground connection of described 55th resistance, one end and the described 5th of described 56th resistance
The source electrode of 14 metal-oxide-semiconductors connects, the other end ground connection of described 56th resistance.
4. according to the solar air-conditioner system with charging and H bridge inversion described in claims 1 to 3 any one, its feature
Being, described 51st IGBT pipe and the 52nd IGBT pipe are N-type IGBT pipe.
5. according to the solar air-conditioner system with charging and H bridge inversion described in claims 1 to 3 any one, its feature
Being, described 53rd metal-oxide-semiconductor and the 54th metal-oxide-semiconductor are P-channel metal-oxide-semiconductor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610726581.6A CN106300601A (en) | 2016-08-25 | 2016-08-25 | There is the solar air-conditioner system of charging and H bridge inversion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610726581.6A CN106300601A (en) | 2016-08-25 | 2016-08-25 | There is the solar air-conditioner system of charging and H bridge inversion |
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| CN201610726581.6A Pending CN106300601A (en) | 2016-08-25 | 2016-08-25 | There is the solar air-conditioner system of charging and H bridge inversion |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005798A (en) * | 2010-12-13 | 2011-04-06 | 山东电力集团公司泰安供电公司 | Solar charging circuit |
| CN202261070U (en) * | 2011-10-09 | 2012-05-30 | 郑州朗睿科技有限公司 | H-bridge inverter circuit |
| CN205195394U (en) * | 2015-04-28 | 2016-04-27 | 周磊 | Solar air conditioning system with lightning protection solar control ware |
-
2016
- 2016-08-25 CN CN201610726581.6A patent/CN106300601A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005798A (en) * | 2010-12-13 | 2011-04-06 | 山东电力集团公司泰安供电公司 | Solar charging circuit |
| CN202261070U (en) * | 2011-10-09 | 2012-05-30 | 郑州朗睿科技有限公司 | H-bridge inverter 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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Application publication date: 20170104 |