CN109286244A - Photovoltaic electrification component based on carrier communication monitors system - Google Patents
Photovoltaic electrification component based on carrier communication monitors system Download PDFInfo
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- CN109286244A CN109286244A CN201811505919.0A CN201811505919A CN109286244A CN 109286244 A CN109286244 A CN 109286244A CN 201811505919 A CN201811505919 A CN 201811505919A CN 109286244 A CN109286244 A CN 109286244A
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- 238000004891 communication Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000010248 power generation Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 10
- 208000032366 Oversensing Diseases 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 20
- 238000013461 design Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
The invention discloses a kind of, and the photovoltaic electrification component based on carrier communication monitors system, including solar electrical energy generation module, power generation confluence module and monitoring modular, monitoring modular includes single-chip microcontroller main control unit, carrier current loop circuit, it include modulation-demodulation circuit in carrier current loop circuit, modulation-demodulation circuit includes modulation circuit and demodulator circuit.The present invention establishes reasonable model, master controller design has been carried out using singlechip chip, the communication of carrier current ring is the carrier communication for making transmission medium with electric current loop, it is not required in addition set up road letter route, electric current loop is firm in structure, it is very high as telecommunication media use reliability, carried out data transmission with single line, it is monitored and is transmitted using single-line series, the use and serial communication of carrier current ring are carried out with single line, facilitate testing staff's real-time monitoring, it was found that failure can be handled in time defect elimination, ensure the power supply reliability of power grid, whole system simple circuit, it is easy to use, it is easy to maintain.
Description
Technical field
The present invention relates to a kind of technical field of power generation control, more particularly to the monitoring of the photovoltaic electrification component based on carrier communication
System.
Background technique
World energy sources crisis and environmental problem hold development and utilization renewable energy and various green energy resources can to realize
Supervention transforms into the measure that must be taken for the mankind.And being constantly progressive with solar battery and power electronic technique, solar energy
One of the mainstream that photovoltaic power generation has obtained significant progress and had become utilization of new energy resources.Currently, photovoltaic power generation constantly to it is low at
Originally, high efficiency and high power density direction are developed, and the principal mode of solar energy photovoltaic utilization will be grid-connected system high-performance
DSP chip appearance so that some advanced control strategies be applied to grid-connected control to improve the sun
The efficiency of energy photovoltaic generating system is possibly realized.A set of basic solar photovoltaic generation system is usually by solar battery
Plate, solar controller, inverter and battery (group) are constituted.Photovoltaic power generation is the photovoltaic effect using interface
And luminous energy is directly translated into a kind of technology of electric energy.The crux element of this technology is solar battery.Solar battery warp
Progress packaging protection can form the solar module of large area after crossing series connection, then just be formed with the components such as power controller are closed
Photovoltaic power generation apparatus.The advantages of photovoltaic power generation is less by territory restriction, because the sun is shining all over the earth；Photovoltaic system also has
Securely and reliably, noiseless, low pollution.
It is that Global coverage is maximum that power line carrier communication utilized, which is existing power infrastructures this transmission mediums,
Just there is broadband access in network, the place that electricity can be used without new route by doing access with power line.Not by landform, landforms
It influences.Small investment, the construction time is short, equipment is simple, can realize the network interconnection together with other means of communication.Power line carrier is logical
Believe high reliablity, high voltage power transmission cable architecture is slightly solid, and the safe design coefficient of high voltage transmission line safe design coefficient ratio optical fiber is high.Tool
Have isochronism, as long as soon as high voltage transmission line frame is logical, carrier channel is open-minded, power transmission line set up where carrier communication route just
Extend to there.What power line carrier communication utilized is existing power infrastructures power grid, power grid be Global coverage most
Just there is broadband access in big network, the place that electricity can be used without new route by doing access with power line.Not by landform,
The influence of looks.Small investment, the construction time is short, equipment is simple, can realize the network interconnection together with other means of communication.China
It is being run on 110kV transmission line of electricity and there are also a large amount of power line carrier on the rural power grids of 35k, huge power line carrier communication
It is responsible for dispatching telephone telemechanical in power grid.The transmission of Remote protection information plays the safe and stable of powerline systems, economical operation
Important role.Therefore the channel resource that the electric system of this valence has should not be abandoned easily, should be reasonably sent out
Exhibition and utilization
Solar energy alternating current power-generating system is collectively constituted by solar panel, charge controller, inverter and battery: the sun
Energy inverter DC power generation system does not then include inversion.Inverter is a kind of power supply change-over device, and inverter can by energisation mode
It is divided into auto-excitation type oscillation inversion and separated exciting oscillation inversion.Major function is the DC inverter by battery into alternating current.Pass through
Full-bridge circuit, generally using SPM processor through ovennodulation, filtering, boosting etc., obtain with lighting load frequency, voltage rating etc.
The sinusoidal ac power supply system terminal user to match uses.There is inverter, so that it may mention for electric appliance using direct-flow storage battery
For alternating current.The premiere feature of inverter is the D/C voltage of input to be converted to a stable value.The function passes through boost conversion
Device is realized, and needs boosted switch and booster diode.It is that the full-bridge being isolated becomes in the first structure, after boosting
Parallel operation.The effect of full-bridge transformer is to provide isolation.Second full-bridge converter in output is for the full-bridge from the first order
The direct current DC of converter is transformed into exchange (AC) voltage.It, which is exported, is connected to AC electricity via additional double-contact relay switch again
It is filtered before net network, it is therefore an objective to security isolation be provided in event of failure and be isolated at night with power supply grid.Second
Structure is non-isolation scheme.Wherein, the D/C voltage that AC alternating voltage is exported by voltage-boosting stage directly generates.The third structure utilizes function
The innovative topological structure of rate switch and power diode, the function that boosting exchanges with AC generation part be incorporated into one it is dedicated
Although the transfer efficiency of solar panel is very low in topology, make the efficiency of inverter very heavy as close possible to 100%
It wants.
Summary of the invention
The purpose of the present invention is being the shortcomings that overcoming the above-mentioned prior art, which has very high cost performance, using
Some power line facilities complete the transmitting of information, are not limited by geographical environment substantially, it is not necessary to specially set for the transmission of signal
Confidence road realizes channel multiplexing, can make full use of existing resource, so as to greatly save cost, thus has considerable
Economic benefit and feasibility, meanwhile, transmission quality is also significantly larger than radio transmission.
It to achieve the above object, should include solar power generation mould based on the photovoltaic electrification component monitoring system of carrier communication
Block, power generation confluence module and monitoring modular, the monitoring modular include single-chip microcontroller main control unit, carrier current loop circuit, described
It include modulation-demodulation circuit in carrier current loop circuit, the modulation-demodulation circuit includes modulation circuit and demodulator circuit；The sun
Energy electricity generation module includes photovoltaic battery array and power line, and the monitoring modular is measured in real time photovoltaic battery array, institute
Photovoltaic battery array is stated equipped with two groups or more, photovoltaic battery array described in every group is equipped with the photovoltaic of two panels or two panels or more
Plate, the photovoltaic panel in photovoltaic battery array described in every group are connected in series on same power line and import same power generation
Confluence module；The confluence module that generates electricity includes header box, and the header box is equipped with two or more input, output ends,
The input terminal of each header box is connect with a power line in photovoltaic battery array described in one group, is correspondingly connected with described defeated
The output end for entering end is connect with the monitoring modular, and each output end of the header box only connects a load；The monitoring
Module includes photovoltaic cell voltage/current sampling module and photovoltaic battery temperature acquisition module；The carrier current loop circuit is also
Including host computer circuit, coupling circuit, slave computer circuit；The single-chip microcontroller main control unit is for controlling data receiver and control number
According to transmission, the single-chip microcontroller main control unit is provided with single or multiple, and the single-chip microcontroller main control unit is all connected to the load
In wave current loop circuit, when one of them described single-chip microcontroller main control unit receives signal or issues signal, other monolithics
Machine main control unit can also receive signal simultaneously, and the single-chip microcontroller main control unit is used to provide protection to low voltage signal.
The photovoltaic cell voltage sample module includes voltage sensor, and the voltage sensor is T-25P/50 type,
Measurement range is -75 to+75W, and output voltage is -5W to+5W；The photovoltaic cell current sampling module includes current sense
Device, the current sensor are DT-10P type current sensor.
The voltage sensor parallel connection choosing connects, and obtains the electricity proportional with voltage is measured by the resistance R to primary circuit
Stream, in order to guarantee Hall element work in the range of optimum precision, should make as far as possible the numerical value of input resistance R with voltage rating with
And primary current is corresponding, the sensor includes two primary side terminals, and two primary side cross-talks include measured voltage input anode
With measured voltage input cathode, secondary side end attached bag includes the end M, and the end M is signal output end.
The current sensor has positive terminal, negative terminals and the end M, and the end M is also signal output end.
The single-chip microcontroller main control unit uses the single-chip microcontroller of STC12C5A60S2 model, and the single-chip microcontroller includes seven outsides
Terminal, two serial port terminals, four timers, AD converter and eight circuit-switched data ends, the single-chip microcontroller take duplexing asynchronous serial
Mouthful, it further includes T1 timer, serial port and P1 port lines in the single-chip microcontroller that precision, which reaches 10,.
Its signal is passed through the modulation circuit first by the host computer circuit sending signal by the carrier current loop circuit
It is modulated, the modulation circuit includes amplifier and bilateral analog switch, and modulated signal is by the coupling circuit in electric power
It is transmitted on line, then the slave computer circuit is transmitted a signal to by the demodulator circuit by the coupling circuit.
In conclusion the present invention establishes reasonable model, master controller design, carrier wave have been carried out using singlechip chip
Current ring communication is the carrier communication for making transmission medium with electric current loop, is not required in addition set up road letter route, and electric current loop is firm in structure,
It is very high as telecommunication media use reliability, carried out data transmission with single line, is monitored and transmitted using single-line series, use single line
The use and serial communication for carrying out carrier current ring facilitate testing staff's real-time monitoring, and discovery failure can be handled in time defect elimination,
Ensure the power supply reliability of power grid, whole system simple circuit is easy to use, easy to maintain.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description:
Fig. 1 is the solar electrical energy generation module system block diagram of the embodiment of the present invention；
Fig. 2 is the single-chip microcontroller of the embodiment of the present invention and the connection structure diagram of modulation-demodulation circuit；
Fig. 3 is the voltage sample module circuit diagram of the embodiment of the present invention；
Fig. 4 is the current sampling module circuit diagram of the embodiment of the present invention；
Fig. 5 is that the single-chip microcontroller of the embodiment of the present invention connects block diagram with carrier current loop circuit；
Fig. 6 is the carrier current loop circuit functional block diagram of the embodiment of the present invention.
Specific embodiment
It should include solar electrical energy generation module, power generation based on the photovoltaic electrification component monitoring system of carrier communication referring to attached drawing
Confluence module and monitoring modular, monitoring modular include single-chip microcontroller main control unit, carrier current loop circuit.
It include modulation-demodulation circuit in carrier current loop circuit, carrier current loop circuit further includes host computer circuit, coupling
Circuit, slave computer circuit, modulation-demodulation circuit include modulation circuit and demodulator circuit, and modulation-demodulation circuit successively includes oscillation electricity
Road, amplifying circuit, diode, single-chip microcontroller and comparator, carrier current loop circuit are believed first by host computer circuit sending signal
It number is modulated by modulation circuit, modulation circuit includes amplifier and bilateral analog switch, and modulated signal passes through coupling circuit
It is transmitted on power line, then slave computer circuit is transmitted a signal to by demodulator circuit by coupling circuit, modulation circuit uses
CD4066 and CD4069 cake core, secondly by amplifying circuit, demodulator circuit is realized to the management of system and the transmission of information,
Chip first amplifies its signal, then communicates signal smoothly by modulation /demodulation and coupling circuit, and carrier current loop circuit is logical
News are the distinctive communication modes of photovoltaic module electricity generation system, especially suitable for each solar power generation based on electric system, change
Electricity and monitoring station are the electric power system dispatching of object and transmit the Remote protection system of protection signal between protected route both ends
The high-frequency carrier signal of carrying information, is loaded on electric current by system, then receives the adapter of information again height with power line transmission
Frequency carrier signal is separated from electric current to realize that information is transmitted.
Carrier current ring is responsible for the communication with single-chip microcontroller, can receive multiple power multicarrier communication signal simultaneously, per electric all the way
Power carrier wave is independent receive-transmit system, and carrier circuit is the core of whole system.Using CD4066 and CD4069 cake core point
The chip of dedicated modulation circuit, special demodulating circuit is not carried as power line, cooperation is with peripheral power amplification circuit and is received back
Road, received carrier signal are received by single-chip microcontroller, are sent to electric current loop by pre-amplification, then give single-chip microcontroller and handled.
Solar electrical energy generation module includes photovoltaic battery array and power line, and monitoring modular carries out photovoltaic battery array real-time
Detection, photovoltaic battery array are equipped with two groups or more, and every group of photovoltaic battery array is equipped with the photovoltaic of two panels or two panels or more
Plate, the photovoltaic panel in every group of photovoltaic battery array are connected in series on same power line and import same power generation confluence mould
Block；Power generation confluence module includes header box, and header box is equipped with two or more input, output ends, each header box
Input terminal connect with a power line in one group of photovoltaic battery array, be correspondingly connected with the output end and monitoring modular of input terminal
Connection, each output end of header box only connect a load, and in the present embodiment, photovoltaic battery array has eight groups, each group
It being made of above eight photovoltaic panels, every eight photovoltaic panels are connected on a power line, and eight groups of concatenated photovoltaic panels are arranged in parallel,
Parallel connection transmission is connected to header box, and the voltage of acquisition and temperature are carried out carrier-wave transmission, each photovoltaic panel by each power line
A circuit and a data sampling terminal are needed, one load of connection, it is excessive can to keep away rabbit electric current in this way on each header box
It causes damages, therefore a power line is only needed to be formed carrier current ring.
Surveying module includes photovoltaic cell voltage/current sampling module and photovoltaic battery temperature acquisition module, photovoltaic cell electricity
Pressure sampling module includes voltage sensor, and voltage sensor is T-25P/50 type, and measurement range is -75 to+75W, output electricity
Pressure is -5W to+5W；Photovoltaic cell current sampling module includes current sensor, and current sensor is DT-10P type electric current biography
Sensor, voltage sensor parallel connection choosing connect, and obtain the electric current proportional with voltage is measured by the resistance R to primary circuit, in order to
Guarantee that Hall element work in the range of optimum precision, should make as far as possible the numerical value of input resistance R with voltage rating and primary side
Electric current is corresponding, and sensor includes two primary side terminals, and two primary side cross-talks include measured voltage input anode and measured voltage
Input cathode, secondary side end attached bag include the end M, and the end M is signal output end, and current sensor has positive terminal, negative terminals
With the end M, the end M is also signal output end.
Single-chip microcontroller main control unit is sent for controlling data receiver and control data, and single-chip microcontroller main control unit is provided with individually
Or it is multiple, single-chip microcontroller main control unit is all connected in carrier current loop circuit, and one of single-chip microcontroller main control unit receives letter
Number or when issuing signal, other single-chip microcontroller main control units can also receive signal simultaneously, and single-chip microcontroller main control unit is used for low
Voltage signal provides protection.
Single-chip microcontroller main control unit uses the single-chip microcontroller of STC12C5A60S2 model, and single-chip microcontroller includes seven exterior terminals, two
A serial port terminal, four timers, AD converter and eight circuit-switched data ends, interior single-chip microcontroller includes T1 timer, serial port and the end P1
Mouth line, single-chip microcontroller take duplexing asynchronous serial port, and precision reaches 10, and information sends and receives the Working mould in full duplex
Formula, it is ensured that accuracy and reliability of the information in transmit process, the system have very high cost performance, utilize existing electric power
Line facility completes the transmitting of information, its advantage is that not limited by geographical environment substantially, it is not necessary to specially set for the transmission of signal
Channel multiplexing is realized in confidence road.Existing resource can be made full use of, so as to greatly save cost, thus is had considerable
Economic benefit and feasibility, when, transmission quality is also significantly larger than radio transmission.
To sum up, the present invention is not limited to above-mentioned specific embodiments.Those skilled in the art are not departing from spirit of the invention
Under the premise of range, several change and modification can be done.Protection scope of the present invention should be subject to claim of the invention.
Claims (6)
1. a kind of photovoltaic electrification component based on carrier communication monitors system, it is characterised in that: including solar electrical energy generation module, hair
Remittance flow module and monitoring modular, the monitoring modular include single-chip microcontroller main control unit, carrier current loop circuit, the carrier wave electricity
Flowing in loop circuit includes modulation-demodulation circuit, and the modulation-demodulation circuit includes modulation circuit and demodulator circuit；
Solar electrical energy generation module includes photovoltaic battery array and power line, and the monitoring modular carries out photovoltaic battery array real-time
Detection, the photovoltaic battery array are equipped with two groups or more, photovoltaic battery array described in every group be equipped with two panels or two panels with
On photovoltaic panel, the photovoltaic panel in photovoltaic battery array described in every group is connected in series on same power line and imports
Same power generation confluence module；
The confluence module that generates electricity includes header box, and the header box is equipped with two or more input, output ends, Mei Gesuo
The input terminal for stating header box is connect with a power line in photovoltaic battery array described in one group, is correspondingly connected with the input terminal
Output end is connect with the monitoring modular, and each output end of the header box only connects a load；
The monitoring modular includes photovoltaic cell voltage/current sampling module and photovoltaic battery temperature acquisition module；
The carrier current loop circuit further includes host computer circuit, coupling circuit, slave computer circuit；
The single-chip microcontroller main control unit is sent for controlling data receiver and control data, and the single-chip microcontroller main control unit is provided with
Single or multiple, the single-chip microcontroller main control unit is all connected in the carrier current loop circuit, one of them described monolithic
When machine main control unit receives signal or issues signal, other single-chip microcontroller main control units can also receive signal, institute simultaneously
Single-chip microcontroller main control unit is stated for providing protection to low voltage signal.
2. the photovoltaic electrification component based on carrier communication monitors system as described in claim 1, it is characterized in that: the photovoltaic electric
Cell voltage sampling module includes voltage sensor, the voltage sensor be T-25P/50 type, measurement range be -75 to+
75W, output voltage are -5W to+5W；The photovoltaic cell current sampling module includes current sensor, the current sensor
For DT-10P type current sensor.
3. the photovoltaic electrification component as claimed in claim 2 based on carrier communication monitors system, it is characterized in that: the voltage sensor
Device parallel connection choosing connects, and the electric current proportional with voltage is measured is obtained by the resistance R to primary circuit, in order to guarantee Hall element work
Make in the range of optimum precision, should make the numerical value of input resistance R corresponding with voltage rating and primary current as far as possible, the biography
Sensor includes two primary side terminals, and two primary side cross-talks include measured voltage input anode and measured voltage input cathode,
Secondary side end attached bag includes the end M, and the end M is signal output end.
4. the photovoltaic electrification component based on carrier communication monitors system as claimed in claim 2, it is characterized in that: the electric current passes
Sensor has positive terminal, negative terminals and the end M, and the end M is also signal output end.
5. the photovoltaic electrification component based on carrier communication monitors system as described in claim 1, it is characterized in that: the single-chip microcontroller
Main control unit use STC12C5A60S2 model single-chip microcontroller, the single-chip microcontroller include seven exterior terminals, two serial port terminals,
Four timers, AD converter and eight circuit-switched data ends, the single-chip microcontroller take duplexing asynchronous serial port, and precision reaches 10, institute
State in single-chip microcontroller further includes T1 timer, serial port and P1 port lines.
6. the photovoltaic electrification component based on carrier communication monitors system as described in claim 1, it is characterized in that: the carrier wave is electric
Loop circuit is flowed first by the host computer circuit sending signal, its signal is modulated by the modulation circuit, the modulation
Circuit includes amplifier and bilateral analog switch, and modulated signal is transmitted on power line by the coupling circuit, then by described
Coupling circuit transmit a signal to the slave computer circuit by the demodulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811505919.0A CN109286244A (en) | 2018-12-10 | 2018-12-10 | Photovoltaic electrification component based on carrier communication monitors system |
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| CN201811505919.0A CN109286244A (en) | 2018-12-10 | 2018-12-10 | Photovoltaic electrification component based on carrier communication monitors system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345821A (en) * | 2020-10-10 | 2021-02-09 | 无锡芯朋微电子股份有限公司 | Commercial power voltage detection circuit and switch power supply system using same |
| CN113382505A (en) * | 2021-06-16 | 2021-09-10 | 中国民用航空总局第二研究所 | Navigation aid lamp driving control device based on broadband power line carrier communication |
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