CN207691689U - Solution for high-performance photovoltaic frequency converter - Google Patents
Solution for high-performance photovoltaic frequency converter Download PDFInfo
- Publication number
- CN207691689U CN207691689U CN201721728627.4U CN201721728627U CN207691689U CN 207691689 U CN207691689 U CN 207691689U CN 201721728627 U CN201721728627 U CN 201721728627U CN 207691689 U CN207691689 U CN 207691689U
- Authority
- CN
- China
- Prior art keywords
- circuit
- control process
- water pump
- photovoltaic
- switching power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 20
- 230000003321 amplification Effects 0.000 claims abstract description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 230000008447 perception Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000009499 grossing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a kind of solution for high-performance photovoltaic frequency converter, including：Mains electricity input end, rectification circuit, frequency changer circuit, motor, switching power circuit, isolation optocoupler drive amplification circuit, control process circuit, photovoltaic water pump channel circuit, high voltage bus detection circuit and DC charging circuit driving circuit；The output end of the photovoltaic water pump channel circuit is electrically connected with control process circuit, parameter signal for feeding back photovoltaic water pump gives control process circuit, the control process circuit correspondingly controls switching power circuit and motor according to the feedback signal, and the switching power circuit controls high voltage bus detection circuit progress busbar voltage detection according to the instruction of control process circuit or control DC charging circuit driving circuit charges to photovoltaic water pump.The utility model can carry out Precision measurement, increase the accuracy of driver control；Using the scheme of isolation optocoupler, the linearity is more preferable, and feedback speed is faster；Multi-signal processing can be achieved.
Description
Technical field
The utility model is related to driving device field more particularly to a kind of solution for high-performance photovoltaic frequency converters.
Background technology
The western remote districts in China still have peasants and herdsmen's unregulated powers up to a million to supply, and this regional drought, soil are waste
Desertization, grass-land deterioration situation is increasingly severe, is reasonably tapped ground water resources resource using photovoltaic water pump system, for solving the ground
The drinking-water and agricultural water problem in area, improve the ecological environment, are of great significance.And the core of photovoltaic water pump technology is special change
How the design of frequency device designs and matches with solar cell array, has solar cell MPPT maximum power point tracking and photovoltaic water pump
The frequency converter of the distinctive various defencive functions of system is to participate in Future New Energy Source to develop and utilize.Therefore, the prior art, which exists, lacks
It falls into, needs to improve.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of solution for high-performance photovoltaic frequency converter.
The technical solution of the utility model is as follows：A kind of solution for high-performance photovoltaic frequency converter, including：Mains electricity input end, rectified current
Road, frequency changer circuit, motor, switching power circuit, isolation optocoupler drive amplification circuit, control process circuit, photovoltaic water pump channel
Circuit, high voltage bus detection circuit and DC charging circuit driving circuit；The mains electricity input end is arranged in the rectification circuit
Input terminal；The output end of the rectification circuit connects frequency changer circuit；The output end of the frequency changer circuit connects motor；The change
The control of frequency circuit terminates isolation optocoupler drive amplification circuit；The input terminal of the isolation optocoupler drive amplification circuit also connects respectively
Connect switching power circuit and control process circuit；The switching power circuit also respectively with rectification circuit, control process circuit, height
Busbar detection circuit and DC charging circuit driving circuit is pressed to be electrically connected；The output end of the photovoltaic water pump channel circuit and control
Processing circuit processed is electrically connected, and the parameter signal for feeding back photovoltaic water pump gives control process circuit, the control process circuit
Switching power circuit and motor are correspondingly controlled according to the feedback signal, the switching power circuit is according to control process circuit
Instruction control high voltage bus detection circuit carries out busbar voltage detection or control DC charging circuit driving circuit to photovoltaic water pump
It charges.
Further, further include current sensor and current signal processing circuit, one end and the electricity of the current sensor
Machine is electrically connected, and after the other end connects current signal processing circuit, then connects control process circuit；The current sensor perception electricity
The current signal of machine, and pass to current signal processing circuit, the current signal processing circuit will treated current signals
Feed back to control process circuit.
Further, further include DC supply input, the access port electricity of the DC supply input and charging circuit
Property connection, be used for photovoltaic water pump DC charging.
Further, the photovoltaic water pump channel circuit feedback signal includes real-time Sun Day photograph and temperature signal.
Further, the control process circuit further includes the ports I/O, and the I/O includes the simulation ports I/O and number
The ports I/O.
Further, the frequency changer circuit is three bridge inverter main circuits, the control terminal of three bridge inverter main circuits
It is connect with isolation optocoupler drive amplification circuit.
Further, the control process circuit uses MCU+DSP dual core processors.
Using the above scheme, the utility model provides a kind of solution for high-performance photovoltaic frequency converter, has the advantages that：1, this reality
Precision measurement can be carried out to output current and busbar voltage, increase the accuracy of driver control with novel；2, this practicality is new
The scheme of isolation optocoupler is used between the control process circuit and frequency changer circuit of type, the linearity is more preferable, and feedback speed is faster；3, originally
The control process circuit of utility model includes RS485 communication interfaces and the ports I/O etc., it can be achieved that multi-signal is handled.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit diagram of isolation optocoupler drive amplification circuit part circuit；
Fig. 3 is the circuit diagram of switching power circuit；
Fig. 4 is the circuit diagram of high voltage bus detection circuit；
Fig. 5 is the circuit diagram of current signal processing circuit；
Fig. 6 is the circuit diagram of photovoltaic water pump channel circuit.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Shown in Fig. 6, the utility model provides a kind of solution for high-performance photovoltaic frequency converter, including：Mains electricity input end
101, rectification circuit 2, frequency changer circuit 3, motor 4, isolation optocoupler drive amplification circuit 5, control process circuit 6, switch power supply
Road 7, photovoltaic water pump channel circuit 10, high voltage bus detection circuit 8 and DC charging circuit driving circuit 9.The alternating current input
The input terminal in the rectification circuit 2 is arranged in end 101.The output end of the rectification circuit 2 connects frequency changer circuit 3.The frequency conversion
The output end of circuit 3 connects motor 4.The control termination isolation optocoupler drive amplification circuit 5 of the frequency changer circuit 3.The isolation
The input terminal of optocoupler drive amplification circuit 5 is also respectively connected with switching power circuit 7 and control process circuit 6.
The switching power circuit 7 also respectively with rectification circuit 2, control process circuit 6, high voltage bus detection circuit 8 and
DC charging circuit driving circuit 9 is electrically connected；The output end of the photovoltaic water pump channel circuit 10 and control process circuit 6
It is electrically connected.
As a kind of embodiment, 10 feedback signal of photovoltaic water pump channel circuit includes real-time Sun Day photograph and temperature
Signal.The photovoltaic water pump channel circuit 10 is used to feed back the parameter signal of photovoltaic water pump to control process circuit 6, the control
Processing circuit 6 correspondingly controls switching power circuit 7 and motor 4 according to the feedback signal, and the switching power circuit 7 is according to control
The instruction control high voltage bus detection circuit 8 of processing circuit 6 processed carries out busbar voltage detection or the driving of control DC charging circuit
Circuit 9 charges to photovoltaic water pump.
The utility model further includes radiator fan driving circuit, and the radiator fan driving circuit is electric therewith for driving one
Property connection radiator fan.
Wherein, rectification circuit 2 includes：Diode sequence 201, charging circuit 202, smoothing capacity device 203 and braking circuit
204；The diode sequence 201, charging circuit 202, smoothing capacity device 203 and braking circuit 204 are electrically connected successively.Institute
It states the mode that diode sequence 201 is connected by four diode-bridge circuits to form, effect is to be changed into single-phase alternating current
The direct current of pulsation.Charging circuit 202 is used to control the charging of photovoltaic water pump.The smoothing capacity device 203 exports diode
Voltage be smoothed.When the braking circuit 204 generates energy in 4 operation process of motor, smoothing capacity device is prevented
Voltage overshoot rise.The utility model is additionally provided with DC supply input 102, the DC supply input 102 and charging
The access port of circuit 202 is electrically connected, and is used for DC charging.
The inverter circuit is three bridge inverter main circuits, the control terminal and isolation optocoupler of three bridge inverter main circuits
Drive amplification circuit 5 connects.The isolation optocoupler drive amplification circuit 5 is used to calculate the electric current letter of each bridge arm of inverter circuit
Number, and control process circuit 6 is passed to, the control process circuit 6 calculates according to above-mentioned current signal and exports each phase
Phase current；The isolation optocoupler drive amplification circuit 5 is additionally operable to harmful between isolation frequency changer circuit 3 and control process circuit 6
Electric current and voltage.
Control process circuit 6 writes programmed algorithm using the double-core chip mode that MCU+DSP is combined, using program
Cured method, can normal use without any parameter of user setting.Hardware chip controls chip using DSP28034, at present
Have the I/O interface processing circuitries of ripe DSP28034 control chips, current sampling circuit, drive signal shaping circuit, AD and
DA processing circuits make reference.Control process circuit 6 exports 6 groups of PWM wave signals after proprietary program(me) algorithm process, and by the letter
Number isolation optocoupler drive amplification circuit 5 is given, isolation optocoupler drive amplification circuit 5 is sent after the signal processing to inverter circuit,
To control the Push And Release of three groups of IGBT gate poles of inverter circuit or more bridge.
The control process circuit 6 further includes RS485 communication interfaces and the ports I/O, and the I/O includes the ports simulation I/O
With the digital ports I/O.The RS485 communication interfaces with the communication of other devices for connecting, and the ports I/O are used for and CPU
Connection, the CPU realize that the order to control process circuit 6 conveys by the ports I/O.The utility model further includes man-machine boundary
Face, the man-machine interface includes keyboard and display screen, for parameter modification, instruction input, state-detection and display inquiry.
The utility model further includes current sensor and current signal processing circuit, one end and the electricity of the current sensor
Machine 4 is electrically connected, and after the other end connects current signal processing circuit, then connects control process circuit 6；The current sensor perception
The current signal of motor, and current signal processing circuit is passed to, the current signal processing circuit by treated, believe by electric current
Number feed back to control process circuit 6.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (7)
1. a kind of solution for high-performance photovoltaic frequency converter, which is characterized in that including：Mains electricity input end, rectification circuit, frequency changer circuit, motor,
Switching power circuit, isolation optocoupler drive amplification circuit, control process circuit, photovoltaic water pump channel circuit, high voltage bus detection
Circuit and DC charging circuit driving circuit；The input terminal in the rectification circuit is arranged in the mains electricity input end；The rectification
The output end of circuit connects frequency changer circuit；The output end of the frequency changer circuit connects motor；The control of the frequency changer circuit terminates
Isolation optocoupler drive amplification circuit；The input terminal of the isolation optocoupler drive amplification circuit be also respectively connected with switching power circuit and
Control process circuit；The switching power circuit also respectively with rectification circuit, control process circuit, high voltage bus detection circuit and
DC charging circuit driving circuit is electrically connected；The output end of the photovoltaic water pump channel circuit electrically connects with control process circuit
It connects, the parameter signal for feeding back photovoltaic water pump gives control process circuit, and the control process circuit is according to the feedback signal phase
Control switching power circuit and motor with answering, the switching power circuit controls high voltage bus according to the instruction of control process circuit
Detection circuit carries out busbar voltage detection or control DC charging circuit driving circuit charges to photovoltaic water pump.
2. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that further include current sensor and electric current letter
Number processing circuit, one end and the motor of the current sensor are electrically connected, after the other end connects current signal processing circuit, then
Connect control process circuit；The current signal of the current sensor perception motor, and current signal processing circuit is passed to, it is described
By treated, current signal feeds back to control process circuit to current signal processing circuit.
3. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that further include DC supply input, institute
The access port for stating DC supply input and charging circuit is electrically connected, and is used for photovoltaic water pump DC charging.
4. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that the photovoltaic water pump channel circuit feedback
Signal includes real-time Sun Day photograph and temperature signal.
5. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that the control process circuit further includes I/
O port, the I/O include the simulation ports I/O and the number ports I/O.
6. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that the frequency changer circuit is that three bridge-types are inverse
Become circuit, the control terminal of three bridge inverter main circuits is connect with isolation optocoupler drive amplification circuit.
7. solution for high-performance photovoltaic frequency converter according to claim 1, which is characterized in that the control process circuit uses MCU+
DSP dual core processors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721728627.4U CN207691689U (en) | 2017-12-11 | 2017-12-11 | Solution for high-performance photovoltaic frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721728627.4U CN207691689U (en) | 2017-12-11 | 2017-12-11 | Solution for high-performance photovoltaic frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207691689U true CN207691689U (en) | 2018-08-03 |
Family
ID=62997485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721728627.4U Expired - Fee Related CN207691689U (en) | 2017-12-11 | 2017-12-11 | Solution for high-performance photovoltaic frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207691689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346724A (en) * | 2021-07-30 | 2021-09-03 | 山东奥卓电气科技发展有限公司 | Switching power supply fault detection and driving control system of frequency converter |
-
2017
- 2017-12-11 CN CN201721728627.4U patent/CN207691689U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346724A (en) * | 2021-07-30 | 2021-09-03 | 山东奥卓电气科技发展有限公司 | Switching power supply fault detection and driving control system of frequency converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101499666A (en) | Photovoltaic grid connection power generation system based on DC converter and working method thereof | |
| CN202931222U (en) | Inverter power supply control device | |
| CN205070870U (en) | Motor timing control system based on thing networking | |
| CN202474883U (en) | Distributed type three-phase four-wire photovoltaic grid-connected device with electric energy adjusting function | |
| CN207691689U (en) | Solution for high-performance photovoltaic frequency converter | |
| CN104065324A (en) | Three-phase AC motor power drive controller based on pre-converter cascaded three-level inverter | |
| CN207008345U (en) | A kind of Demand-side energy information harvester of distributed photovoltaic access | |
| CN104242481A (en) | Automatic impedance matching control device for high-power wireless power transmission device | |
| CN202333838U (en) | Isolated grid-connected inverter power supply | |
| CN203301167U (en) | Photovoltaic power generation controller based on multi-core processor | |
| CN205123678U (en) | A photovoltaic inverter system | |
| CN203522540U (en) | High-frequency switching power supply device for substation | |
| CN204833660U (en) | Electric power efficiency detection device | |
| CN203826969U (en) | Chained SVG control circuit based on DSP and FPGA | |
| CN204595091U (en) | A kind of Multifunctional three-phase electric energy table of mutual inductor integral type | |
| CN207218557U (en) | A kind of low power consumption high-precision integrated regulator | |
| CN207682889U (en) | Injection molding machine High-precision servo driver | |
| CN202159241U (en) | Voltage regulating and voltage stabilizing DSP control device | |
| CN106026167A (en) | Distributed power source grid connected access device | |
| CN202615154U (en) | Computer intelligent control chip | |
| CN206099360U (en) | A photovoltaic micro-inverter based on xCore | |
| CN202837394U (en) | Synchronous sampling device for triphase low voltage power grid alternating current data | |
| CN204633606U (en) | Based on the high power switching power supply of DSP | |
| CN202282616U (en) | Control circuit for static var generator (SVG) | |
| CN211790896U (en) | Parallel control device of direct current screen charging module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20191211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |