CN109391021A - Cell anti-reverse fills the control device and solar energy MPPT control system of switch - Google Patents
Cell anti-reverse fills the control device and solar energy MPPT control system of switch Download PDFInfo
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- CN109391021A CN109391021A CN201811430444.3A CN201811430444A CN109391021A CN 109391021 A CN109391021 A CN 109391021A CN 201811430444 A CN201811430444 A CN 201811430444A CN 109391021 A CN109391021 A CN 109391021A
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
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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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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses control devices and solar energy MPPT control system that a kind of cell anti-reverse fills switch.Wherein, the control device which fills switch includes switch control module, drive module and transformer；The input terminal of transformer is connect with the non-inverting output pin of solar energy MPPT control system, the output end of transformer and the input terminal of drive module connect, the output end of the solar panel of the output end and solar energy MPPT control system of drive module is connect with the input terminal of switch control module respectively, and the output end of switch control module is connect with the input terminal of the DC-DC charge circuit of solar energy MPPT control system.The present invention is compared with the high power consumption of the relay scheme of the prior art, short-life defect, have the characteristics that circuit is simple, the service life is long, isolation strength is high, at low cost and functional, can exist during on-off without the problem of arcing, and it is able to maintain the small advantage of driving power consumption again, the complicated driving method of traditional MOSFET/IGBT is omitted.
Description
Technical field
The present invention relates to solar energy power generating MPPT controller technical fields more particularly to a kind of cell anti-reverse to fill switch
Control device and solar energy MPPT control system.
Background technique
MPPT (Maximum Power Point Tracking, MPPT maximum power point tracking) system, is that one kind passes through adjusting
The working condition of electrical module, enable photovoltaic panel export more electric energy electrical system can by solar panel issue
Direct current is effectively stored in battery, and it is not covered from far-off regions and tourist area can to efficiently solve normal grid
Life and commercial power, generation environment does not pollute.Solar energy MPPT controller is in PV input circuit to rear end DC-DC circuit at present
Between, it is necessary to using the device or circuit of a kind of controllable on-off, Lai Shixian connects major loop on daytime and charges the battery, at night
The circuit for switching battery and PV input, prevents evening reverse battery from discharging and gives solar energy PV.And work as battery for some reason
Over-voltage can not cut off PV by this circuit device and input to charge circuit in the case where charge closing, and guarantee system can
By property and safety.
Currently used control mode generally uses relay, or is connected on PV input using MOSFET/IGBT and fills
In electrical circuit, play the role of control loop go side.Although being to control the complexity that can simplify circuit with relay,
In such direct current input circuit, there are apparent life problems, because relay is in cutting DC loop, there are serious arcings
Problem, the service life is very short, and may be when band carries cutting, and electric arc cannot extinguish the problems such as causing fire, the drive of relay
Dynamic power consumption can not be made low, waste the energy of a part of solar energy；And IGBT/MOSFET used at present substitutes this
The method of counnter attack filling switch is all more complicated and cannot accomplish that control is isolated, and easily causes to control when PV inputs surge
Circuit damage in turn results in entire control circuit failure.In view of the above problems, set forth herein a kind of more advanced control circuits
It realizes that counnter attack fills the function of switch, and keeps extremely low driving power consumption, band, which carries cutting, will not generate electric arc, and it is energy saving, it mentions
High reliability.
Summary of the invention
The control device and solar energy MPPT control system that the embodiment of the present application fills switch by providing a kind of cell anti-reverse,
It aims to solve the problem that and drives complexity when solving the problems, such as to there is a problem of in make and break process arcing in the prior art.
To achieve the above object, the present invention provides a kind of control device of cell anti-reverse filling switch, is applied to solar energy
MPPT control system, including switch control module, drive module and transformer；Wherein,
The input terminal of the transformer is connect with the non-inverting output pin of the solar energy MPPT control system, described
The output end of transformer and the input terminal of drive module connect, the output end of the drive module and solar energy MPPT control
The output end of the solar panel of system is connect with the input terminal of the switch control module respectively, and the switch control mould
The output end of block is connect with the input terminal of the DC-DC charge circuit of the solar energy MPPT control system；
The transformer, in the non-inverting output pin there are when pumping signal, to the pumping signal into
Row is coupled and is exported to drive module；
The drive module, for the pumping signal to be converted into drive level signal, by the drive level signal
The first driving voltage is obtained after filtering, to provide the first driving voltage to the switch control module；
The switch control module, for establishing the switch control module after receiving first driving voltage
Output end to the solar panel and the connection forming circuit between the input terminal of the DC-DC charge circuit；
The switch control module is also used to pass through institute there is no when pumping signal in the non-inverting output pin
The second driving voltage for stating drive module remains turned-off, and is filled with disconnecting output end and the DC-DC of the solar panel
Connection between the input terminal of electrical circuit.
Optionally, it is provided with third capacitor between the input terminal of the transformer and the non-inverting output pin, uses
In the direct current signal being isolated in the pumping signal.
Optionally, the drive module includes first resistor, first capacitor, the second capacitor, first diode and the two or two
Pole pipe；First output end of the transformer and one end of first resistor connect, the other end of the first resistor, the one or two pole
The cathode of pipe and one end of first capacitor are connect with the input terminal of the switch control module；Second output of the transformer
End connect with one end of the second capacitor, the other end of second capacitor respectively with the anode of the first diode and the two or two
The cathode of pole pipe connects；The other end of the positive and described first capacitor of second diode with the switch control module
Output end connection.
Optionally, the first diode and the second diode, for the pumping signal to be converted into the driving electricity
Ordinary mail number.
Optionally, the first resistor, for when pumping signal is not present in the non-inverting output pin, to release institute
The second driving voltage is stated to keep the switch control module to close；Wherein, second driving voltage is the pulsewidth modulation
When pumping signal is not present in output pin, the remaining driving voltage of the first resistor.
Optionally, the switch control module includes the first metal-oxide-semiconductor and third diode；The solar panel it is defeated
The cathode of outlet and the third diode is connect with the drain electrode of first metal-oxide-semiconductor, the grid of first metal-oxide-semiconductor and institute
State first capacitor one end connection, and the source electrode of first metal-oxide-semiconductor respectively with the anode of third diode, first capacitor it is another
The connection of the input terminal of one end and the DC-DC charge circuit.
Optionally, the switch control module includes the second metal-oxide-semiconductor, the 4th diode, third metal-oxide-semiconductor and the five or two pole
Pipe；The cathode of the output end of the solar panel and the 4th diode is connect with the drain electrode of second metal-oxide-semiconductor；
The source electrode of second metal-oxide-semiconductor is connect with the source electrode of the anode of the 4th diode, the other end of first capacitor, third metal-oxide-semiconductor, institute
The grid for stating the second metal-oxide-semiconductor is connect with the grid of one end of the first capacitor, the cathode of first diode, third metal-oxide-semiconductor, institute
The drain electrode for stating third metal-oxide-semiconductor is connect with the input terminal of the cathode of the 5th diode and the DC-DC charge circuit.
Optionally, first metal-oxide-semiconductor, the second metal-oxide-semiconductor and third metal-oxide-semiconductor are N-channel field-effect tube.
The present invention also provides a kind of solar energy MPPT control system, the solar energy MPPT control system includes such as above-mentioned institute
The cell anti-reverse stated fills the control device of switch；The solar energy MPPT control system further includes that solar panel, DC-DC fill
Electrical circuit and battery；
The output end of the solar panel is connect with the input terminal for the control device that the cell anti-reverse fills switch, institute
The output end for stating the control device that cell anti-reverse fills switch is connect with the input terminal of the DC-DC charge circuit, and the DC-DC
The output end of charge circuit is connect with the battery.
Optionally, the solar energy MPPT control system further includes MCU controller, and the MCU controller is equipped with pulsewidth
Output pin is modulated, for filling the control device input signal of switch to the cell anti-reverse.
In the present invention, by the connection of transformer isolation forceful electric power and light current, solar panel input circuit is effectively solved
With the overall isolation effect of DC-DC charge circuit, there is higher reliability；The number of elements of drive module is few, without power
Component is lost, not will increase power loss, so as to which the power consumption of integrated circuit is greatly lowered；Switch control module is used
In after receiving first driving voltage, establish the switch control module to the output end of the solar panel and
Connection forming circuit between the input terminal of the DC-DC charge circuit；In the non-inverting output pin, there is no excitations
It when signal, is remained turned-off by the second driving voltage of the drive module, for disconnecting the output of the solar panel
End and the DC-DC charge circuit input terminal between connection, therefore, at night when, can reliably disconnect solar-electricity
Connection between the output end of pond plate and the input terminal of DC-DC charge circuit prevents reverse battery to charge solar panel,
When the positive and negative anodes of input are reversed, can effectively prevent to impact DC-DC charge circuit after input positive and negative anodes are reversed.This hair
Bright cell anti-reverse fills the Gao Gong of the relay scheme of the control device switched and solar energy MPPT control system and the prior art
Consumption, short-life defect are compared, and have the characteristics that circuit is simple, the service life is long, isolation strength is high, at low cost and functional, both
Can exist during on-off without the problem of arcing, and be able to maintain the small advantage of driving power consumption again, be omitted traditional
The complicated driving method of MOSFET/IGBT.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of solar energy MPPT control system of the present invention；
Fig. 2 is the second embodiment for the control device that cell anti-reverse of the present invention fills switch；
Fig. 3 is the 3rd embodiment for the control device that cell anti-reverse of the present invention fills switch；
Fig. 4 is that cell anti-reverse of the present invention fills the control device of switch after non-inverting output pin adds pumping signal
The waveform diagram of CH1 and CH4；
Fig. 5 is that cell anti-reverse of the present invention fills the control device of switch after non-inverting output pin adds pumping signal
The waveform diagram of CH3.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Switch control module | 20 | Drive module |
| 30 | DC-DC charge circuit | 40 | Battery |
| 50 | Solar panel |
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
The present invention proposes that a kind of cell anti-reverse fills the control device of switch.
Referring to Fig.1, in the first embodiment of the invention, which fills the control device of switch, is applied to solar energy
MPPT control system, including switch control module 10, drive module 20 and transformer T1；Wherein,
The input terminal of transformer T1 is connect with the non-inverting output pin PWM of solar energy MPPT control system, transformer
The output end of T1 is connect with the input terminal of drive module 20, and the output end and solar energy MPPT control system of drive module 20 are too
The output end of positive energy solar panel 50 is connect with the input terminal of switch control module 10 respectively, and the output end of switch control module 10
It is connect with the input terminal of the DC-DC charge circuit 30 of solar energy MPPT control system；
Transformer T1, for, there are when pumping signal, being coupled simultaneously to pumping signal in non-inverting output pin PWM
It exports to drive module 20；
Drive module 20 will be obtained for pumping signal to be converted into drive level signal after the filtering of drive level signal
First driving voltage, to provide the first driving voltage to switch control module 10；
Switch control module 10, for after receiving the first driving voltage, establishing switch control module 10 to solar energy
Connection forming circuit between the output end of solar panel 50 and the input terminal of DC-DC charge circuit 30；
Switch control module 10 is also used to pass through driving mould there is no when pumping signal in non-inverting output pin PWM
Second driving voltage of block 20 remains turned-off, with disconnect solar panel 50 output end and DC-DC charge circuit 30 it is defeated
Enter the connection between end.
In the present embodiment, switch control module 10 is metal-oxide-semiconductor, using the active switch characteristic of MOSFET, is controlled using series connection
System or unidirectionally controlled mode, and cooperate corresponding driving circuit to realize the on-off function of switch control module 10.
In the present invention, the connection of forceful electric power and light current is isolated by transformer T1, effectively solves solar panel 50 and inputs
The overall isolation effect in circuit and DC-DC charge circuit 30 has higher reliability；The number of elements of drive module 20 is few,
There is no power loss component, not will increase power loss, so as to which the power consumption of integrated circuit is greatly lowered；Switch control
Module 10, for after receiving the first driving voltage, establishing switch control module 10 to the output end of solar panel 50
And the connection forming circuit between the input terminal of DC-DC charge circuit 30；In non-inverting output pin PWM, there is no excitation letters
Number when, remained turned-off by the second driving voltage of drive module 20, for disconnect solar panel 50 output end and DC-
Connection between the input terminal of DC charge circuit 30, therefore, at night when, can reliably disconnect the defeated of solar panel 50
Connection between the input terminal of outlet and DC-DC charge circuit 30 prevents reverse battery to charge solar panel 50, when defeated
When the positive and negative anodes entered are reversed, it can effectively prevent to impact DC-DC charge circuit 30 after input positive and negative anodes are reversed.The present invention
Cell anti-reverse fill the control device of switch and the relay scheme of solar energy MPPT control system and the prior art high power consumption,
Short-life defect is compared, and has the characteristics that circuit is simple, the service life is long, isolation strength is high, at low cost and functional, Ji Neng
Exist during on-off without the problem of arcing, and be able to maintain the small advantage of driving power consumption again, traditional MOSFET/ is omitted
The complicated driving method of IGBT.
Further, it is provided with third capacitor between the input terminal of transformer T1 and non-inverting output pin PWM, be used for
The direct current signal in pumping signal is isolated.
In the present embodiment, there are when pumping signal on non-inverting output pin PWM, pass through third capacitor C3 series connection
Onto transformer T1, transformer T1 can couple the pumping signal of non-inverting output pin PWM.Due to being deposited in pumping signal
In AC signal and direct current signal, direct current signal is isolated out by third capacitor C3, so that the AC signal in pumping signal
Can transformer T1 can couple.
Further, Fig. 2 and Fig. 3 are please referred to, drive module 20 includes first resistor R1, first capacitor C1, the second capacitor
C2, first diode D1 and the second diode D2；The first output end of transformer T1 is connect with one end of first resistor R1, and first
Input terminal of the one end of the other end of resistance R1, the cathode of first diode D1 and first capacitor C1 with switch control module 10
Connection；The second output terminal of transformer T1 is connect with one end of the second capacitor C2, and the other end of the second capacitor C2 is respectively with first
The connection of the cathode of the anode of diode D1 and the second diode D2；The anode of second diode D2 and the other end of first capacitor C1
It is connect with the output end of switch control module 10.
First capacitor C1, the second capacitor C2, third capacitor C3, first diode D1, the second diode D2, first resistor R1
And transformer T1 collectively constitutes the driving circuit of switch control module 10, switch control module 10 is used as controlled member, is controlled by
The presence or absence of the pumping signal of non-inverting output pin PWM.
When there are pumping signal, being connected on transformer T1 by third capacitor C3 series connection on non-inverting output pin PWM,
Transformer T1 can couple the pumping signal of non-inverting output pin PWM, and be connected to the one or two by the second capacitor C2
On pole pipe D1, the pumping signal of non-inverting output pin PWM is converted into really by first diode D1 as rectifier cell
Drive level signal obtains the driving voltage of switch control module 10, switch control module after the filtering by first capacitor C1
10 immediately begin to connect, so that the foundation between the input terminal of the output end of solar panel 50 and DC-DC charge circuit 30
Connection forming circuit.
When pumping signal is not present on non-inverting output pin PWM, transformer T1 will not couple any signal at this time
The current rectifying and wave filtering circuit of the second capacitor C2, first diode D1, the second diode D2 and first capacitor C1 composition is passed to, at this time
First resistor E1 plays the role of remaining driving voltage of releasing, and keeps switch control module 10 to close always, at this point, corresponding
It is the state disconnected between the output end of solar panel 50 and the input terminal of DC-DC charge circuit 30, to realize circuit
Control on-off function.
Further, first diode D1 and the second diode D2, for pumping signal to be converted into drive level signal.
Further, first resistor R1, for when pumping signal is not present in non-inverting output pin PWM, releasing the
Two driving voltages are to keep switch control module 10 to close；Wherein, the second driving voltage is that non-inverting output pin PWM is not deposited
In pumping signal, the remaining driving voltage of first resistor R1.
Based on first embodiment, proposes that cell anti-reverse of the invention fills the second embodiment of the control device of switch, please join
Fig. 2 is read, switch control module 10 includes the first metal-oxide-semiconductor Q1 and third diode D3；The output end of solar panel 50 and
The cathode of three diode D3 is connect with the drain D of the first metal-oxide-semiconductor Q1, the grid of the first metal-oxide-semiconductor Q1 and the one of first capacitor C1
End connection, and the source S of the first metal-oxide-semiconductor Q1 other end and DC-DC with the anode of third diode D3, first capacitor C1 respectively
The input terminal of charge circuit 30 connects.
In the present embodiment, by the way of unidirectionally controlled, corresponding driving circuit is cooperated to realize switch control module 10
On-off function.Third diode D3 be used for rectifying and wave-filtering, since transformer T1 can only transmit AC signal, need rectifying and wave-filtering at
Direct current signal can just make the first metal-oxide-semiconductor Q1 normally opened.
Based on first embodiment, proposes that cell anti-reverse of the invention fills the 3rd embodiment of the control device of switch, please join
Fig. 3 is read, switch control module 10 includes the second metal-oxide-semiconductor Q2, the 4th diode D4, third metal-oxide-semiconductor Q3 and the 5th diode D5；Too
The output end of positive energy solar panel 50 and the cathode of the 4th diode D4 are connect with the drain D of the second metal-oxide-semiconductor Q2；Second metal-oxide-semiconductor
The source S of Q2 is connect with the source electrode of the anode of the 4th diode D4, the other end of first capacitor C1, third metal-oxide-semiconductor Q3, and second
The grid G of metal-oxide-semiconductor Q2 is connect with the grid G of one end of first capacitor C1, the cathode of first diode D1, third metal-oxide-semiconductor Q3, the
The drain D of three metal-oxide-semiconductor Q3 is connect with the input terminal of the cathode of the 5th diode D5 and DC-DC charge circuit 30.
In the present embodiment, by the way of series control, corresponding driving circuit is cooperated to realize switch control module 10
On-off function.4th diode D4 and the 5th diode D5 is used for rectifying and wave-filtering, since transformer T1 can only transmit AC signal,
It needs rectifying and wave-filtering at direct current signal, can just make the second metal-oxide-semiconductor Q2 and third metal-oxide-semiconductor Q3 normally opened.
3rd embodiment only increases a concatenated metal-oxide-semiconductor compared with second embodiment, and this case does not limit to and this.
Further, the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2 and third metal-oxide-semiconductor Q3 are N-channel field-effect tube.
Referring to Fig. 1, solar energy MPPT control system includes such as the present invention also provides a kind of solar energy MPPT control system
Above-mentioned cell anti-reverse fills the control device of switch；Solar energy MPPT control system further includes that solar panel 50, DC-DC fill
Electrical circuit 30 and battery 40；
The output end of solar panel 50 is connect with the input terminal for the control device that cell anti-reverse fills switch, cell anti-reverse
The output end for filling the control device of switch is connect with the input terminal of DC-DC charge circuit 30, and the output of DC-DC charge circuit 30
End is connect with battery 40.
In the present invention, the connection of forceful electric power and light current is isolated by transformer T1, effectively solves solar panel 50 and inputs
The overall isolation effect in circuit and DC-DC charge circuit 30 has higher reliability；The number of elements of drive module 20 is few,
There is no power loss component, not will increase power loss, so as to which the power consumption of integrated circuit is greatly lowered；Switch control
Module 10, for after receiving the first driving voltage, establishing switch control module 10 to the output end of solar panel 50
And the connection forming circuit between the input terminal of DC-DC charge circuit 30；In non-inverting output pin PWM, there is no excitation letters
Number when, remained turned-off by the second driving voltage of drive module 20, for disconnect solar panel 50 output end and DC-
Connection between the input terminal of DC charge circuit 30, therefore, at night when, can reliably disconnect the defeated of solar panel 50
Connection between the input terminal of outlet and DC-DC charge circuit 30 prevents reverse battery to charge solar panel 50, when defeated
When the positive and negative anodes entered are reversed, it can effectively prevent to impact DC-DC charge circuit 30 after input positive and negative anodes are reversed.The present invention
Cell anti-reverse fill switch control device and solar energy MPPT control system have circuit is simple, the service life is long, isolation strength is high,
Feature at low cost and functional can exist without the problem of arcing during on-off, and be able to maintain driving function again
Small advantage is consumed, the complicated driving method of traditional MOSFET/IGBT is omitted.
Further, solar energy MPPT control system further includes MCU controller, and it is defeated that MCU controller is equipped with pulsewidth modulation
Pin PWM out, for filling the control device input signal of switch to cell anti-reverse.
In the present embodiment, using a non-inverting output pin PWM on MCU controller, a 40KHZ is generated, is accounted for
Sky is overdrived than the signal for being 50% and exports high level amplitude as+12V or more, the end C3 is input to, at this time in Fig. 2 and Fig. 3
Q1 and Q2 and Q3 will be connected, and form the closed circuit of switch, and outputting and inputting will connect.
If necessary to close the switching circuitry of Q2 and Q3 composition or the switching circuitry of Q1 composition, it is only necessary to which system MCU is by PWM
The output directly fixed level of output high level or low level etc..This switching circuitry can close, realize input and it is defeated
Disconnection out will not reversely flow backward onto solar panel 50 such as the battery 40 in evening system, form battery 40
Self discharge.
Referring to Fig. 4, the waveform in each place is as follows in circuit:
The channel CH1: the corresponding drive waveforms being applied on C3, frequency 40KHZ.
The channel CH4: the drive level amplitude obtained on C1, about 15.9V, this voltage namely drive Q2's and Q3
VGS voltage, enough unlatching MOSFET, realize circuit conducting.
Referring to Fig. 5, the channel CH3: primary voltage waveform on isolation drive coupling transformer T1, it can be seen that for clearly
The driving square wave of 40KHZ, is the AC signal of generating positive and negative voltage, it is possible thereby to the isolation signals are coupled by transformer T1, with
The mode of high frequency carrier realizes the transmission of switching signal.
Specific advantage of the invention is:
1, the overall isolation effect of solar energy PV input circuit and control circuit part can be effectively solved using the present invention,
Due to the presence of transformer T1, the connection of forceful electric power and light current has been isolated, compared with common directly control, have it is higher can
By property；
2, the number of elements of drive module 20 is considerably less, without any power loss component, not will increase power loss, right
Than relay control mode, the power consumption of integrated circuit can be significantly reduced；
3, controlled member Q1, Q2, Q3 at night when can reliably disconnect rear end DC-DC charge circuit 30 and the sun
Connection between the input terminal of energy solar panel 50, prevents reverse battery from discharging solar panel 50, when the positive and negative anodes of input
It is reversed, and can effectively prevent to impact subsequent circuit after input positive and negative anodes are reversed.
The present invention after tested and the case where the prior art comparison it is as shown in the table:
The above is only the alternative embodiments of the application, are not intended to limit the scope of the patents of the application, all in the application
Application design under, using equivalent structure transformation made by present specification and accompanying drawing content, or directly/be used in it indirectly
He is included in the scope of patent protection of the application relevant technical field.
Claims (10)
1. a kind of cell anti-reverse fills the control device of switch, it is applied to solar energy MPPT control system, which is characterized in that including opening
Close control module, drive module and transformer；Wherein,
The input terminal of the transformer is connect with the non-inverting output pin of the solar energy MPPT control system, the transformation
The output end of device and the input terminal of drive module connect, the output end of the drive module and the solar energy MPPT control system
The output end of solar panel connect respectively with the input terminal of the switch control module, and the switch control module
Output end is connect with the input terminal of the DC-DC charge circuit of the solar energy MPPT control system；
The transformer, for, there are when pumping signal, carrying out coupling to the pumping signal in the non-inverting output pin
Merge output to drive module；
The drive module filters the drive level signal for the pumping signal to be converted into drive level signal
After obtain the first driving voltage, with to the switch control module provide the first driving voltage；
The switch control module, for establishing the switch control module to institute after receiving first driving voltage
State the connection forming circuit between the output end of solar panel and the input terminal of the DC-DC charge circuit；
The switch control module is also used to pass through the drive there is no when pumping signal in the non-inverting output pin
Second driving voltage of dynamic model block remains turned-off, and is charged back with disconnecting output end and the DC-DC of the solar panel
Connection between the input terminal on road.
2. the control device that cell anti-reverse as described in claim 1 fills switch, which is characterized in that the input terminal of the transformer
It is provided with third capacitor between the non-inverting output pin, the direct current signal for being isolated in the pumping signal.
3. the control device that cell anti-reverse as described in claim 1 fills switch, which is characterized in that the drive module includes the
One resistance, first capacitor, the second capacitor, first diode and the second diode；First output end of the transformer and first
One end of resistance connects, one end of the other end of the first resistor, the cathode of first diode and first capacitor with it is described
The input terminal of switch control module connects；The second output terminal of the transformer is connect with one end of the second capacitor, and described second
The other end of capacitor is connect with the cathode of the anode of the first diode and the second diode respectively；Second diode
The other end of the positive and described first capacitor is connect with the output end of the switch control module.
4. the control device that cell anti-reverse as claimed in claim 3 fills switch, which is characterized in that the first diode and the
Two diodes, for the pumping signal to be converted into the drive level signal.
5. the control device that cell anti-reverse as claimed in claim 3 fills switch, which is characterized in that the first resistor is used for
When pumping signal is not present in the non-inverting output pin, second driving voltage of releasing is to keep the switch control
Module is closed；Wherein, when second driving voltage is that pumping signal is not present in the non-inverting output pin, described first
The remaining driving voltage of resistance.
6. the control device that cell anti-reverse as claimed in claim 3 fills switch, which is characterized in that the switch control module packet
Include the first metal-oxide-semiconductor and third diode；The cathode of the output end of the solar panel and the third diode is and institute
The drain electrode connection of the first metal-oxide-semiconductor is stated, the grid of first metal-oxide-semiconductor is connect with one end of the first capacitor, and described first
The source electrode of the metal-oxide-semiconductor input terminal with the anode of third diode, the other end of first capacitor and the DC-DC charge circuit respectively
Connection.
7. the control device that cell anti-reverse as claimed in claim 3 fills switch, which is characterized in that the switch control module packet
Include the second metal-oxide-semiconductor, the 4th diode, third metal-oxide-semiconductor and the 5th diode；The output end of the solar panel and described
The cathode of four diodes is connect with the drain electrode of second metal-oxide-semiconductor；The source electrode and the 4th diode of second metal-oxide-semiconductor are just
The source electrode connection of pole, the other end of first capacitor, third metal-oxide-semiconductor, the grid of second metal-oxide-semiconductor and the one of the first capacitor
The grid connection at end, the cathode of first diode, third metal-oxide-semiconductor, the drain electrode of the third metal-oxide-semiconductor and the cathode of the 5th diode
And the input terminal connection of the DC-DC charge circuit.
8. the control device that cell anti-reverse as claimed in claims 6 or 7 fills switch, which is characterized in that first metal-oxide-semiconductor,
Second metal-oxide-semiconductor and third metal-oxide-semiconductor are N-channel field-effect tube.
9. a kind of solar energy MPPT control system, which is characterized in that the solar energy MPPT control system includes such as claim 1
The cell anti-reverse fills the control device of switch；The solar energy MPPT control system further includes solar panel, DC-DC
Charge circuit and battery；
The output end of the solar panel is connect with the input terminal for the control device that the cell anti-reverse fills switch, the electricity
The output end that pond counnter attack fills the control device of switch is connect with the input terminal of the DC-DC charge circuit, and the DC-DC charges
The output end in circuit is connect with the battery.
10. solar energy MPPT control system as claimed in claim 9, which is characterized in that the solar energy MPPT control system
It further include MCU controller, the MCU controller is equipped with non-inverting output pin, switchs for filling to the cell anti-reverse
Control device input signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430444.3A CN109391021A (en) | 2018-11-27 | 2018-11-27 | Cell anti-reverse fills the control device and solar energy MPPT control system of switch |
| PCT/CN2019/129317 WO2020108662A1 (en) | 2018-11-27 | 2019-12-27 | Control device for battery anti-backflow switch and solar energy mppt control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811430444.3A CN109391021A (en) | 2018-11-27 | 2018-11-27 | Cell anti-reverse fills the control device and solar energy MPPT control system of switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109391021A true CN109391021A (en) | 2019-02-26 |
Family
ID=65429719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811430444.3A Pending CN109391021A (en) | 2018-11-27 | 2018-11-27 | Cell anti-reverse fills the control device and solar energy MPPT control system of switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109391021A (en) |
| WO (1) | WO2020108662A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277924A (en) * | 2019-07-03 | 2019-09-24 | 上海鼎充新能源技术有限公司 | A kind of economical isolated high-voltage DC switching circuit |
| WO2020108662A1 (en) * | 2018-11-27 | 2020-06-04 | 每天蓝(深圳)科技有限公司 | Control device for battery anti-backflow switch and solar energy mppt control system |
| CN113227934A (en) * | 2019-07-02 | 2021-08-06 | 东芝三菱电机产业***株式会社 | Electric power system |
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| CN109391021A (en) * | 2018-11-27 | 2019-02-26 | 每天蓝(深圳)科技有限公司 | Cell anti-reverse fills the control device and solar energy MPPT control system of switch |
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| CN105071469A (en) * | 2015-08-10 | 2015-11-18 | 茂硕电源科技股份有限公司 | Solar charging circuit |
| CN105356728A (en) * | 2015-12-01 | 2016-02-24 | 广州金升阳科技有限公司 | Isolated drive circuit |
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| CN110277924A (en) * | 2019-07-03 | 2019-09-24 | 上海鼎充新能源技术有限公司 | A kind of economical isolated high-voltage DC switching circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020108662A1 (en) | 2020-06-04 |
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Application publication date: 20190226 |