CN208623379U - A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection - Google Patents
A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection Download PDFInfo
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- CN208623379U CN208623379U CN201821273818.0U CN201821273818U CN208623379U CN 208623379 U CN208623379 U CN 208623379U CN 201821273818 U CN201821273818 U CN 201821273818U CN 208623379 U CN208623379 U CN 208623379U
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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 utility model relates to power supply control technology field, a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection is specifically disclosed, including MPPT adjustment circuit and at least full-bridge converter all the way；The MPPT adjustment circuit includes photovoltaic current sampling circuit, photovoltaic voltage sample circuit, MCU circuit, MPPT reference voltage output circuit, MPPT adjustment output circuit and power circuit；The data of acquisition are transferred to MCU circuit respectively and carry out maximum power point processing by the photovoltaic current sampling circuit and photovoltaic voltage sample circuit, it exports to MPPT reference voltage output circuit, photovoltaic voltage sample circuit is compared analysis with MPPT reference voltage output circuit data, exports MPPT adjustment signal to modulate the PWM phase shift angle of full-bridge converter.The utility model controls the work of photovoltaic maximum power, greatly improves the utilization rate of photovoltaic polar plate component, reduces user's economic cost, and full-bridge converter can export the direct current of constant pressure and flow, air-conditioning is avoided to damage because inputting over-voltage.
Description
Technical field
The utility model relates to power supply control technology field, a kind of solar DC air-conditioning multi-machine parallel connection is specifically disclosed
Power-supply controller of electric.
Background technique
Common photovoltaic DC air-conditioning is using photovoltaic polar plate component and the one-to-one mode of controller, i.e. one group of pole plate component
With a controller and an air-conditioning can only be connected, in this manner when air-conditioning is not opened, photovoltaic polar plate component is in the spare time
Set state.It due to photovoltaic polar plate component higher cost and is easy to be limited by fabricating yard area, photovoltaic polar plate component leaves unused meeting
Cause utilization rate low, increases economic cost.
Moreover, photovoltaic polar plate component input energy has unstable characteristic, PV air-conditioner requires connection alternating current as benefit
It fills, its working principle is that alternating current passes through the rectification circuit not being isolated, it is directly in parallel with the direct current after photovoltaic boosting on bus
It powers to air-conditioning, it is contemplated that each air-conditioning connected may not be same phase alternating current, when script supply voltage is that 220VAC passes through
The bus of two air-conditionings is directly connected to and forms the circuit 380VAC, and air-conditioning is be easy to cause to damage because inputting over-voltage.
Therefore, it is necessary to a kind of power-supply controller of electric that can solve the above problem.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of solar energy
The power-supply controller of electric of direct-flow air conditioner multi-machine parallel connection.
To achieve the above object, the utility model uses following scheme.
A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection, including MPPT adjustment circuit and at least full-bridge all the way
Converter；The MPPT adjustment circuit includes photovoltaic current sampling circuit, photovoltaic voltage sample circuit, MCU circuit, MPPT reference
Voltage follower circuit, MPPT adjust output circuit and power circuit；The MCU circuit respectively with photovoltaic current sampling circuit, light
Voltage sampling circuit is lied prostrate, MPPT reference voltage output circuit and power circuit are electrically connected；The MPPT adjustment output circuit point
It is not electrically connected with MPPT reference voltage output circuit, photovoltaic voltage sample circuit and multichannel full-bridge converter；The photovoltaic electric
The data of acquisition are transferred to MCU circuit respectively by stream sample circuit and photovoltaic voltage sample circuit, and MCU circuit carries out maximum power
Point processing, and exporting to MPPT reference voltage output circuit, while by photovoltaic voltage sample circuit and MPPT reference voltage output
Circuit data is compared analysis, exports suitable MPPT adjustment signal to modulate the PWM phase shift angle of full-bridge converter, in turn
Control photovoltaic is worked with maximum power.
Further, the MPPT adjustment circuit includes display circuit, the display circuit respectively with MCU circuit and outside
Display screen be electrically connected.
Further, the MPPT adjustment circuit includes network communication interface circuit, the network communication interface circuit with
MCU circuit is electrically connected.
Further, the power-supply controller of electric further includes reverse connection prevention protection circuit, and protection circuit against input over-voltage and output are short
Protect circuit in road.
Further, the MPPT adjustment output circuit includes the first operational amplifier U2A, second operational amplifier U2B,
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, triode
Q1；The Pin1 foot of the first operational amplifier U2A is electrically connected by the Pin7 foot of capacitor C3 and second operational amplifier U2B
It connects；The Pin1 foot of first operational amplifier U2A is also electrically connected with the base stage of triode Q1；The emitter of the triode Q1 is logical
It crosses resistance R3 to connect with power supply VCC, the grounded collector of triode Q1；The Pin2 foot of the first operational amplifier U2A and
The Pin7 foot of two operational amplifier U2B is electrically connected, and the Pin2 foot of the first operational amplifier U2A also passes through the fortune of resistance R7 and second
The Pin6 foot for calculating amplifier U2B is electrically connected；The Pin3 foot of the first operational amplifier U2A respectively with MCU circuit, resistance R2
And capacitor C2 is electrically connected, the resistance R2 other end and capacitor C1 and resistance R1 are electrically connected；The capacitor C1 other end with
Capacitor C2 is connected after being connected with ground terminal；The Pin6 foot of the second operational amplifier U2B also pass through resistance R4 respectively with MCU circuit
And photovoltaic voltage sample circuit is electrically connected；The Pin5 foot of the second operational amplifier U2B respectively with resistance R5 and resistance R6
It is electrically connected；The resistance R5 is also electrically connected with+5V power supply；The resistance R6 is also electrically connected with ground terminal.
Further, the full-bridge converter include chip model be UC3875N control integrate circuit U 3, resistance R8,
Resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, capacitor C4, capacitor C5, capacitor C6,
Capacitor C7, capacitor C8, capacitor C9, capacitor EC1, diode D1, diode D2, diode D3, isolation drive transformer TX1, every
From transformer TX2, isolation drive transformer TX3, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5, inductance L1, output voltage
Feed circuit and output current feedback circuit；The resistance R8 is connected with the Pin18 foot of U3；The Pin19 of the capacitor C9 and U3
Foot is connected；The capacitor C4 is connected with the Pin6 foot of U3；The resistance R9 and capacitor C5 and the Pin16 foot for coupling U3；The electricity
Resistance R10 and capacitor C6 and the Pin7 foot for coupling U3；The resistance R11 and capacitor C7 and the Pin15 foot for coupling U3；The domination set
Output voltage feed circuit is connect at the Pin3 foot of circuit U 3, the Pin5 foot for controlling integrated circuit U 3 connects output current feedback electricity
Road, the Pin2 foot of the U3 adjust output circuit by diode D1 and MPPT and are electrically connected；The Pin13 foot of the U3 and
Pin14 and isolation drive transformer TX1 is electrically connected, and isolation drive transformer TX1 electrically connects with resistance R12, resistance R13 respectively
It connects；The resistance R12 other end is successively electrically connected with metal-oxide-semiconductor Q2, capacitor C8 and isolating transformer TX2；The resistance R13 is another
One end is successively electrically connected with metal-oxide-semiconductor Q3, capacitor C8 and isolating transformer TX2；The Pin8 foot and Pin9 of the U3 be isolated drive
Dynamic transformer TX3 is electrically connected, and isolation drive transformer TX3 is electrically connected with resistance R14, resistance R15 respectively；The resistance
The R14 other end is successively electrically connected with metal-oxide-semiconductor Q4 and isolating transformer TX2；The resistance R15 other end successively with metal-oxide-semiconductor Q5
And isolating transformer TX2 is electrically connected；The isolating transformer TX2 output end respectively with diode D2, diode D3 and inductance
L1 is electrically connected；The capacitor EC1 is electrically connected with inductance L1, diode D2, diode D3 respectively.
The utility model has the beneficial effects that providing a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection, pass through
The voltage and current of acquisition photovoltaic carries out maximum power point processing in real time, and exports MPPT reference voltage, then by photovoltaic sampled voltage
Compared with MPPT reference voltage, suitable MPPT adjustment signal is exported to modulate the PWM phase shift angle of full-bridge converter to control
The work of photovoltaic maximum power, greatly improves the utilization rate of photovoltaic polar plate component, reduces user's economic cost, and full-bridge converts
Device can export the direct current of constant pressure and flow, and air-conditioning is avoided to damage because inputting over-voltage.
Detailed description of the invention
Fig. 1 is that the controller of the utility model embodiment uses system schematic.
Fig. 2 is the controller circuitry block schematic illustration of the utility model embodiment.
Fig. 3 is that the MPPT of the utility model embodiment adjusts the circuit diagram of output circuit.
Fig. 4 is the circuit diagram of the full-bridge converter of the utility model embodiment.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to examples and drawings further
Explanation, the content that embodiment refers to not is restriction to the utility model.
A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection, as shown in Fig. 2, including 1 He of MPPT adjustment circuit
At least full-bridge converter 2 all the way；The MPPT adjustment circuit 2 include photovoltaic current sampling circuit 4, photovoltaic voltage sample circuit 5,
MCU circuit 3, MPPT reference voltage output circuit 6, MPPT adjust output circuit 7 and power circuit 8；The MCU circuit 3 is distinguished
With photovoltaic current sampling circuit 4, photovoltaic voltage sample circuit 5, MPPT reference voltage output circuit 6 and power circuit 8 electrically connect
It connects；For the MPPT adjustment output circuit 7 respectively with MPPT reference voltage output circuit 6, photovoltaic voltage sample circuit 5 and multichannel are complete
Bridging parallel operation 2 is electrically connected.
As depicted in figs. 1 and 2, by the MPPT adjustment circuit 1 of the power-supply controller of electric of this solar DC air-conditioning multi-machine parallel connection
It is electrically connected with multiple photovoltaic polar plate components, multiple full-bridge converters 2 are electrically connected with each air-conditioning respectively.When work, photovoltaic
Current sampling circuit 4 acquires photovoltaic current data in real time and is transferred to MCU circuit 3, and photovoltaic voltage sample circuit 5 acquires light in real time
Volt voltage is simultaneously transferred to MCU circuit 3,
When MCU circuit 3 carries out maximum power point processing, MCU circuit 3 first carries out primary system scanning, and then generates one
Photovoltaic voltage analog quantity (voltage value that generation for the first time is the Pin5 foot detection of U1), is converted into PWM by internal A/D converter
Wave signal exports after paraphase from the Pin11 foot of U1, after resistance R1, capacitor R2, resistance R2, two rank of capacitor C2 integral,
Divide two-way output, the Pin10 foot for sending U1 back to all the way is verified, another output MPPT reference voltage to the first operational amplifier
U2A, then MPPT adjustment signal is exported, photovoltaic input voltage is adjusted by full-bridge converter 2.
MCU circuit 3 must calculate in real time by the photovoltaic voltage value acquired in real time multiplied by photovoltaic current value according to P=V*I simultaneously
Power, when the verification of the Pin10 foot of U1 is correct, MCU records the realtime power of this electrical voltage point；MCU generates a photovoltaic electric again
The analog quantity of pressure recycles the movement of previous step, re-records down the realtime power of this electrical voltage point；With this adjust photovoltaic input voltage from
Open-circuit voltage values are stopped to the 60% of open-circuit voltage values, and record the photovoltaic output power of each electrical voltage point, are maximized as photovoltaic
The current maximum power point of pole plate.
After current maximum power point is arrived in scanning, the photovoltaic analog quantity that MCU circuit 3 generates is that orientation reduces；Real-time tracking
Period, when detection power is to increase or do not change twice in succession, adjustment direction is positive direction；When detection power is twice in succession
When reduction, adjustment direction is opposite direction；System carries out disturbance adjustment with this, carries out real-time tracking to the maximum power point of pole plate.
After MCU circuit 3 carries out maximum photovoltaic power point operation, output to MPPT reference voltage output circuit 7.Meanwhile it will
Photovoltaic voltage sample circuit 5 in real time collected photovoltaic voltage data and MPPT reference voltage output circuit 6 reference voltage into
Row comparative analysis, and MPPT adjustment signal is exported to modulate the PWM phase shift angle of full-bridge converter, so that photovoltaic polar plate
Component is worked with maximum power point, and it is empty that the direct current that each road is isolated, and exports constant pressure and flow by subsequent full-bridge converter 2 supplies electricity to each road
It adjusts, to realize the peak use rate of photovoltaic polar plate component, reduces the economic cost of user, while effectively avoiding air-conditioning because of over-voltage
And it damages.And every output voltage and output electric current all the way is all independent control, it can be according to each air-conditioning characteristic to each
The output voltage and output electric current on road are adjusted in right amount, to meet the direct-flow air conditioner of different capacity or different voltages power supply, from
And keep the versatility of this controller extremely strong；Again since the output of each road full-bridge converter is all DC characteristic, when single channel output power
When less than air-conditioning input power, moreover it is possible to two-way output is directly used in parallel, the air-conditioning of different capacity can be connect, is also possible to not
With the air-conditioning of power voltage supply, and there is no electrical properties to interfere with each other for each air-conditioning.When system convention configuration single channel output is up to
2250W(3P), 3750W(5P is met) or when bigger air-conditioning, exporting can also be directly used in parallel.
In the present embodiment, the MPPT adjustment circuit 1 include display circuit 9, the display circuit 9 respectively with MCU circuit 3
And external display screen is electrically connected, display circuit 9 provides the letter such as real time information, generated output, defect content by display screen
Breath is checked for user, and user is facilitated to go and find out what's going on.
In the present embodiment, the MPPT adjustment circuit 1 includes network communication interface circuit 10, the network communication interface electricity
Road 10 and MCU circuit 3 are electrically connected, and can carry out data exchange by network communication interface circuit 10 and other equipment.
In the present embodiment, the power-supply controller of electric further includes reverse connection prevention protection circuit, protection circuit against input over-voltage and output
Short-circuit protection circuit, energy effective protection to control system.
In the present embodiment, as shown in figure 3, MPPT adjustment output circuit 7 includes the first operational amplifier U2A, second
Operational amplifier U2B, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, capacitor C1, capacitor C2,
Capacitor C3, triode Q1；The Pin1 foot of the first operational amplifier U2A passes through capacitor C3's and second operational amplifier U2B
Pin7 foot is electrically connected；The Pin1 foot of first operational amplifier U2A is also electrically connected with the base stage of triode Q1；The triode
The emitter of Q1 is connect by resistance R3 with power supply VCC, the grounded collector of triode Q1；The first operational amplifier U2A
Pin2 foot and the Pin7 foot of second operational amplifier U2B be electrically connected, the Pin2 foot of the first operational amplifier U2A also passes through electricity
The Pin6 foot for hindering R7 and second operational amplifier U2B is electrically connected；The Pin3 foot of the first operational amplifier U2A respectively with
MCU circuit, resistance R2 and capacitor C2 are electrically connected, and the resistance R2 other end and capacitor C1 and resistance R1 are electrically connected；It is described
The capacitor C1 other end is connected after being connected with capacitor C2 with ground terminal；The Pin6 foot of the second operational amplifier U2B also passes through resistance
R4 is electrically connected with MCU circuit and photovoltaic voltage sample circuit respectively；The Pin5 foot of the second operational amplifier U2B respectively with
Resistance R5 and resistance R6 is electrically connected；The resistance R5 is also electrically connected with+5V power supply；The resistance R6 also electrically connects with ground terminal
It connects.Single-chip microcontroller uses the chip U1 of model STC15W1K16S, and collected photovoltaic real-time voltage value is sent in photovoltaic voltage sampling
To the Pin5 foot of U1, collected photovoltaic real-time current value is sent to the Pin7 foot of U1d by photovoltaic current sample；U1 is according to collecting
Real time information carry out maximum power point processing, after operation U1 Pin11 foot export MPPT reference voltage, using R1, C1,
Two-way is divided to export after R2, C2 integral, the Pin10 for feeding back to U1 all the way is corrected reference voltage, and another way is sent to U2A's
The reference signal that Pin3 is adjusted as MPPT；Photovoltaic voltage sampling is sent to U2A after also reversely amplifying by U2B, R4, R5, R6, R7
Pin2 foot, after being compared with the MPPT of the Pin3 foot of U2A adjustment reference signal, the Pin1 foot of U2A, output error signal is again
MPPT adjustment signal is exported after Q1 amplifies, MPPT adjustment signal is used to modulate the PWM pulsewidth of each road full-bridge converter, realizes
MPPT is adjusted, and is greatly improved the utilization rate of photovoltaic polar plate component, is reduced user's economic cost.
In the present embodiment, as shown in figure 4, the full-bridge converter 2 includes the integrated electricity of control that chip model is UC3875N
Road U3, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, capacitor C4, electricity
Hold C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor EC1, diode D1, diode D2, diode D3, isolation drive
Transformer TX1, isolating transformer TX2, isolation drive transformer TX3, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5, electricity
Feel L1, output voltage feed circuit and output current feedback circuit；The resistance R8 is connected with the Pin18 foot of U3；The capacitor
C9 is connected with the Pin19 foot of U3；The capacitor C4 is connected with the Pin6 foot of U3；The resistance R9 and capacitor C5 simultaneously couples U3's
Pin16 foot；The resistance R10 and capacitor C6 and the Pin7 foot for coupling U3；The resistance R11 and capacitor C7 simultaneously couples U3's
Pin15 foot；The Pin3 foot for controlling integrated circuit U 3 meets output voltage feed circuit, the Pin5 for controlling integrated circuit U 3
Foot connects output current feedback circuit, and the Pin2 foot of the U3 adjusts output circuit by diode D1 and MPPT and is electrically connected；Institute
The Pin13 foot and Pin14 and isolation drive transformer TX1 for stating U3 are electrically connected, isolation drive transformer TX1 respectively with resistance
R12, resistance R13 are electrically connected；The resistance R12 other end is successively electrical with metal-oxide-semiconductor Q2, capacitor C8 and isolating transformer TX2
Connection；The resistance R13 other end is successively electrically connected with metal-oxide-semiconductor Q3, capacitor C8 and isolating transformer TX2；The U3's
Pin8 foot and Pin9 and isolation drive transformer TX3 are electrically connected, isolation drive transformer TX3 respectively with resistance R14, resistance
R15 is electrically connected；The resistance R14 other end is successively electrically connected with metal-oxide-semiconductor Q4 and isolating transformer TX2；The resistance R15
The other end is successively electrically connected with metal-oxide-semiconductor Q5 and isolating transformer TX2；The isolating transformer TX2 output end respectively with two poles
Pipe D2, diode D3 and inductance L1 are electrically connected；The capacitor EC1 electrically connects with inductance L1, diode D2, diode D3 respectively
It connects.U3 is phase-shift type PWM control integrated circuit, and R8 connects the Pin18 foot adjustment pulse steepness of U3, and C9 connects the Pin19 foot adjustment of U3
Pulse oblique wave, C4 meet the Pin6 foot adjustment soft-start time of U3, R9 and C5 and couple the Pin16 foot adjustment output PWM driving of U3
Frequency, R10, C6 and the Pin 7 and R11, C7 and when coupling 15 foot of Pin of U3 and adjusting separately the dead zone of two groups of PWM for coupling U3
Between；Output voltage feedback connects 3 foot of Pin of U3, output current feedback connects 5 foot of Pin of U3, MPPT adjustment signal and meets U3 by D1
2 foot of Pin adjust PWM phase shift degree, point 4 tunnels PWM adjusted respectively from the Pin of U3 14, the Pin 13 of U3, U3 Pin 9,
The Pin 8 of U3 is exported, and converts out isolated power supply by TX1, R12, R13, TX3, R14, R15, Q2, Q3, Q4, Q5, C8, TX2, then
After D2, D3 rectification, L1 afterflow, EC1 filtering, the direct current for exporting constant pressure and flow supplies electricity to air-conditioning use, to effectively prevent
Crushing bad air-conditioning.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (6)
1. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection, which is characterized in that including MPPT adjustment circuit and extremely
Few full-bridge converter all the way；The MPPT adjustment circuit includes photovoltaic current sampling circuit, photovoltaic voltage sample circuit, MCU electricity
Road, MPPT reference voltage output circuit, MPPT adjust output circuit and power circuit；The MCU circuit respectively with photovoltaic electric current
Sample circuit, photovoltaic voltage sample circuit, MPPT reference voltage output circuit and power circuit are electrically connected；The MPPT adjustment
Output circuit is electrically connected with MPPT reference voltage output circuit, photovoltaic voltage sample circuit and multichannel full-bridge converter respectively；
The data of acquisition are transferred to MCU circuit respectively by the photovoltaic current sampling circuit and photovoltaic voltage sample circuit, MCU circuit into
Row maximum power point processing, and export to MPPT reference voltage output circuit, while photovoltaic voltage sample circuit and MPPT being joined
It examines voltage follower circuit data and is compared analysis, export suitable MPPT adjustment signal to modulate the PWM phase of full-bridge converter
Angle is moved, and then controls photovoltaic and is worked with maximum power.
2. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection according to claim 1, which is characterized in that institute
Stating MPPT adjustment circuit includes display circuit, and the display circuit is electrically connected with MCU circuit and the display screen of outside respectively.
3. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection according to claim 1, which is characterized in that institute
Stating MPPT adjustment circuit includes network communication interface circuit, and the network communication interface circuit and MCU circuit are electrically connected.
4. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection according to claim 1, which is characterized in that institute
Stating power-supply controller of electric further includes reverse connection prevention protection circuit, protection circuit against input over-voltage and output short circuit protection circuit.
5. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection according to claim 1, which is characterized in that institute
Stating MPPT adjustment output circuit includes the first operational amplifier U2A, second operational amplifier U2B, resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, triode Q1；First operation amplifier
The Pin1 foot of device U2A is electrically connected by the Pin7 foot of capacitor C3 and second operational amplifier U2B；First operational amplifier U2A
Pin1 foot also with the base stage of triode Q1 be electrically connected；The emitter of the triode Q1 is connected by resistance R3 and power supply VCC
It connects, the grounded collector of triode Q1；The Pin2 foot of the first operational amplifier U2A is with second operational amplifier U2B's
Pin7 foot is electrically connected, and the Pin2 foot of the first operational amplifier U2A also passes through the Pin6 of resistance R7 Yu second operational amplifier U2B
Foot is electrically connected；The Pin3 foot of the first operational amplifier U2A is electrically connected with MCU circuit, resistance R2 and capacitor C2 respectively,
The resistance R2 other end and capacitor C1 and resistance R1 are electrically connected；The capacitor C1 other end be connected with capacitor C2 after and ground terminal
It is connected；The Pin6 foot of the second operational amplifier U2B also pass through resistance R4 respectively with MCU circuit and photovoltaic voltage sample circuit
It is electrically connected；The Pin5 foot of the second operational amplifier U2B is electrically connected with resistance R5 and resistance R6 respectively；The resistance R5
Also it is electrically connected with+5V power supply；The resistance R6 is also electrically connected with ground terminal.
6. a kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection according to claim 1, which is characterized in that institute
Stating full-bridge converter includes that the control that chip model is UC3875N integrates circuit U 3, resistance R8, resistance R9, resistance R10, resistance
R11, resistance R12, resistance R13, resistance R14, resistance R15, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor
C9, capacitor EC1, diode D1, diode D2, diode D3, isolation drive transformer TX1, isolating transformer TX2, isolation are driven
Dynamic transformer TX3, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q5, inductance L1, output voltage feed circuit and output electric current
Feed circuit；The resistance R8 is connected with the Pin18 foot of U3；The capacitor C9 is connected with the Pin19 foot of U3；The capacitor C4 with
The Pin6 foot of U3 is connected；The resistance R9 and capacitor C5 and the Pin16 foot for coupling U3；The resistance R10 and capacitor C6 simultaneously couples
The Pin7 foot of U3；The resistance R11 and capacitor C7 and the Pin15 foot for coupling U3；The Pin3 foot for controlling integrated circuit U 3 connects
Output voltage feed circuit, the Pin5 foot for controlling integrated circuit U 3 connect output current feedback circuit, the Pin2 foot of the U3
Output circuit is adjusted by diode D1 and MPPT to be electrically connected；The Pin13 foot and Pin14 and isolation drive transformer of the U3
TX1 is electrically connected, and isolation drive transformer TX1 is electrically connected with resistance R12, resistance R13 respectively；The resistance R12 other end
Successively it is electrically connected with metal-oxide-semiconductor Q2, capacitor C8 and isolating transformer TX2；The resistance R13 other end is electric successively with metal-oxide-semiconductor Q3
Hold C8 and isolating transformer TX2 to be electrically connected；The Pin8 foot and Pin9 and isolation drive transformer TX3 of the U3 is electrically connected,
Isolation drive transformer TX3 is electrically connected with resistance R14, resistance R15 respectively；The resistance R14 other end successively with metal-oxide-semiconductor Q4
And isolating transformer TX2 is electrically connected；The resistance R15 other end successively electrically connects with metal-oxide-semiconductor Q5 and isolating transformer TX2
It connects；The isolating transformer TX2 output end is electrically connected with diode D2, diode D3 and inductance L1 respectively；The capacitor EC1
It is electrically connected respectively with inductance L1, diode D2, diode D3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273818.0U CN208623379U (en) | 2018-08-08 | 2018-08-08 | A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273818.0U CN208623379U (en) | 2018-08-08 | 2018-08-08 | A kind of power-supply controller of electric of solar DC air-conditioning multi-machine parallel connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034557A (en) * | 2019-04-04 | 2019-07-19 | 中国电子科技集团公司第四十八研究所 | A kind of ocean anchoring floating platform energy supplyystem and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034557A (en) * | 2019-04-04 | 2019-07-19 | 中国电子科技集团公司第四十八研究所 | A kind of ocean anchoring floating platform energy supplyystem and control method |
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Address after: 523000 No. 4, park 2nd Street, Meiliang Road, shujiu village, Changping Town, Dongguan City, Guangdong Province Patentee after: Guangdong Sanke new energy Co.,Ltd. Address before: 523000 No. 4, park 2nd Street, Meiliang Road, shujiu village, Changping Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN TIANDEPU NEW ENERGY Co.,Ltd. |
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Effective date of registration: 20230510 Address after: 518000 608, Building C, Hexi Huanggangling Industrial Park, Hangcheng Industrial Zone, Taoyuan Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Tiandepu Energy Storage Technology Co.,Ltd. Address before: 523000 No. 4, park 2nd Street, Meiliang Road, shujiu village, Changping Town, Dongguan City, Guangdong Province Patentee before: Guangdong Sanke new energy Co.,Ltd. |
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