CN109599944A - Intelligent distribution transformer terminals - Google Patents
Intelligent distribution transformer terminals Download PDFInfo
- Publication number
- CN109599944A CN109599944A CN201811445660.5A CN201811445660A CN109599944A CN 109599944 A CN109599944 A CN 109599944A CN 201811445660 A CN201811445660 A CN 201811445660A CN 109599944 A CN109599944 A CN 109599944A
- Authority
- CN
- China
- Prior art keywords
- module
- serial ports
- signal
- super capacitor
- 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.)
- Pending
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims abstract description 56
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 90
- 230000006870 function Effects 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 230000011664 signaling Effects 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003276 anti-hypertensive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- H02J13/0075—
-
- 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
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
-
- H02J13/0062—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/248—UPS systems or standby or emergency generators
-
- 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
- Y04S40/126—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 wireless data transmission
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of intelligent distribution transformer terminals, including cabinet, positioned at chassis bottom polymorphic type interface be built in cabinet exchange and power supply media board and core cpu board.It is described exchange and power supply media board include metering units, carrier module, full-wave rectification and filter circuit and for simultaneously offer 3 road DC power signals wide range power module.The core cpu board further includes power regulator module, the power regulator module is equipped with to CPU element and provides the super capacitor E1 that emergency back-up power is supplied, and the power regulator module is additionally provided with the super capacitor charging circuit and super capacitor output circuit being connected with super capacitor E1.The intelligent distribution transformer terminals of disclosure of the invention add super capacitor and its peripheral circuit by ingenious, effectively extend the backup power supply working time, and the pressure stabilizing width by increasing working power guarantees the normal power supply time of super capacitor.
Description
Technical field
The invention belongs to distribution transformer comprehensive solution technical fields, and in particular to a kind of intelligence distribution transformer terminals.
Background technique
Sturdy power grid strategic plan is built according to national grid, using rural power grids intelligence as pilot project, pushes distribution skill
Art innovation and development.In July, 2017, national grid draft the state-of-the-art technology index for proposing and standardizing intelligent distribution transformer terminals.State's household electrical appliances
Net is in the upgrading of rural power grids in recent years, and large area upgrades various power supply units, wherein can upgrade JP cabinet (JP in transformer platform area
Cabinet is the abbreviation of distribution transformer integrated power distribution cabinet).The object that national grid state-of-the-art technology index is directed toward is exactly big in JP cabinet
Brain --- " intelligent distribution transformer terminals ".
State Grid Corporation of China is according to the operation characteristics of rural power grids, the extension of rural power grids of drawing over and use experience, to rural power grids intelligence
Environmental condition, working power, functional requirement, technical indicator, reliability of distribution transformer terminals etc. make explicit provisions.It is newly advised herein
Before, in accordance with the Q/GDW 614-2011 of State Grid Corporation of China's publication, " rural power grids are intelligent low completely for rural power grids intelligent type low-voltage distribution box
It is press-fitted electronic box functional specification and technical conditions " and Q/GDW 615-2011 " rural power grids intelligence distribution transformer terminals functional specification and technology item
Part " carry out development & production.
To meet newest technical requirements, it is necessary to carry out upgrading for existing distribution transformer terminals, overcome existing
Distribution transformer terminals power requirement, communicating requirement, in terms of deficiency and defect.
Summary of the invention
The present invention is directed to the situation of the prior art, overcomes drawbacks described above, provides a kind of intelligent distribution transformer terminals.
The present invention uses following technical scheme, and the intelligence distribution transformer terminals include cabinet, the polymorphic type positioned at chassis bottom
Interface be built in cabinet exchange and power supply media board and core cpu board, in which:
The polymorphic type interface includes an at least network communication interface, an at least USB interface, at least a serial communication interface, SIM
Card interface and heavy-duty connector interface for accessing input/output signal line, pass through above-mentioned input/output signal line input and output
Signal of communication include 3 three-phase voltage electric signals, 3 three-phase current electric signals, 1 active energy pulse signal, 1 it is idle
Electrical energy impulse signals, 8 On-off signal signals and 2 direct-flow input signals；
The exchange and power supply media board include metering units, carrier module, full-wave rectification and filter circuit and are used for while providing 3
The wide range power module of road DC power signal, the core cpu board include CPU element and mono- with CPU independently of each other
Member connected DI input module and direct current input module, the metering units are connected by SPI communication line with CPU element, described
Carrier module is connected by serial ports carrier communication line with CPU element；
The core cpu board further includes power regulator module, and the power regulator module is equipped with to after CPU element offer promptly
The super capacitor E1 of stand-by power source supply, the power regulator module are additionally provided with the super capacitor charging electricity being connected with super capacitor E1
Road and super capacitor output circuit.
According to the above technical scheme, above-mentioned 3 three-phase current electric signals pass through 3 CT respectively and convert to form 3 three-phase electricities
The ac small signal of stream, above-mentioned 3 three-phase voltage electric signals pass through respectively 3 PT convert to be formed 3 three-phase voltages exchange it is small
Signal, the ac small signal of above-mentioned 3 three-phase currents and the ac small signal of 3 three-phase voltages are sent into metering units simultaneously with shape
At and export 1 active energy pulse signal, 1 reactive energy pulse signal and 1 electricity digital signal, above-mentioned 1 has
Function electrical energy impulse signals and 1 reactive energy pulse signal are through light-coupled isolation access heavy-duty connector interface, above-mentioned electricity number
Signal accesses CPU element through SPI communication line；
Signal wire comprising above-mentioned 3 three-phase voltage electric signals is connect by the coupling of heavy-duty connector interface access carrier module
Mouthful；
Above-mentioned 8 On-off signal signals access CPU element by DI input module, and above-mentioned 2 direct-flow input signals pass through straight
It flows input module and accesses CPU element.
According to the above technical scheme, the super capacitor charging circuit includes between 5.5V external power supply and super capacitor E1
The diode D4 and current-limiting resistance R108 sequentially accessed.
According to the above technical scheme, the super capacitor output circuit includes Voltage stabilizing module FF6277, super capacitor E1 with
No. 3 ends of Voltage stabilizing module FF6277 are accessed at common end between current-limiting resistance R108 by diode D6.
According to the above technical scheme, the network communication interface includes network interface LAN0 and network interface LAN1, the CPU core core
Card further includes the network communication module with CPU element diconnected, the network communication module simultaneously with above-mentioned network interface LAN0 and
Network interface LAN1 is connected；
The USB interface includes usb 1 and USB interface 2, the CPU element simultaneously with above-mentioned usb 1 and USB interface 2
It is connected；
The serial communication interface includes serial ports S0, serial ports S1, serial ports S2, serial ports S3, serial ports O4 and serial ports O5, the CPU core
Core card further includes the serial communication modular with CPU element diconnected, the serial communication modular simultaneously with above-mentioned serial ports S0,
Serial ports S1, serial ports S2, serial ports S3, serial ports O4 are connected with serial ports O5.
According to the above technical scheme, the metering units use ATT7022 metering chip；
The serial ports S3 uses the port RS485；
The serial ports O4 and serial ports O5 are all made of RS232/RS485 common port.
According to the above technical scheme, the core cpu board further includes the radio communication mold with CPU element diconnected
Block, the wireless communication module include 1 local wireless communication unit and 1 GPRS communication unit, the local radio communication
Unit is for connecting near field handheld device, and the GPRS communication unit with main website for being communicated.
According to the above technical scheme, the local wireless communication unit is used with the bluetooth module for drawing antenna；
The GPRS communication unit uses the five mould adaptive wireless communication module of 4G/3G/2G of Huawei.
According to the above technical scheme, the 3 road DC power signals that the wide range power module provides include first via 5V
Master battery signal, the second road 24V remote signalling power supply signal and third road 12V power supply signal.
According to the above technical scheme, the core cpu board further includes the data memory module being connected with CPU element, adds
Close module and 24 panel leds, wherein 8 indicator lights are connected to the I/O pin of CPU element, other 16 panel leds are logical
Cross bus access CPU element.
Intelligence distribution transformer terminals disclosed by the invention, the beneficial effect is that, core CPU integrated level is high, and entire product only makes
The repertoires such as electric energy calculating, electrical energy measurement are completed with a piece of CPU, had not only simplified design, but also saved cost.Meanwhile it is logical
Cross it is ingenious add super capacitor and its peripheral circuit, effectively extend backup power supply working time, pass through and increase working power
The normal power supply time of pressure stabilizing width guarantee super capacitor.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the preferred embodiment of the present invention.
Fig. 2 is the bottom interface schematic diagram of the preferred embodiment of the present invention.
Fig. 3 is the circuit structure diagram of the power supply stabilization circuit (module) of the preferred embodiment of the present invention.
Fig. 4 is the module frame chart of the input and output route of the preferred embodiment of the present invention.
Fig. 5 is the exchange of the preferred embodiment of the present invention and the module frame chart of power supply media board.
Fig. 6 is the module frame chart of the core cpu board of the preferred embodiment of the present invention.
Appended drawing reference includes: 11- network interface LAN0；12- network interface LAN1；21- serial ports S0；22- serial ports S1；23- serial ports S2；
24- serial ports S3；25- serial ports O4；26- serial ports O5；31-USB interface 1；32-USB interface 2；41-SIM card interface；51- heavy duty connects
Connect device interface.
Specific embodiment
The invention discloses a kind of intelligent distribution transformer terminals, below with reference to preferred embodiment, to specific embodiment party of the invention
Formula is further described.
Entirety (outside) structure of the intelligent distribution transformer terminals is shown to Fig. 6, Fig. 1 referring to Figure 1 of the drawings, Fig. 2 shows
The bottom interface structure of the intelligent distribution transformer terminals, Fig. 3 show the power supply stabilization circuit (mould of the intelligent distribution transformer terminals
Block) circuit structure, Fig. 4 shows the modular structure of the input and output route of the intelligent distribution transformer terminals, and Fig. 5 shows described
The exchange of intelligent distribution transformer terminals and the modular structure of power supply media board, Fig. 6 show the modular structure of the core cpu board.
Preferably, the intelligent distribution transformer terminals include cabinet, positioned at chassis bottom polymorphic type interface and be built in cabinet
Exchange and power supply media board (power supply with exchange board/power supply+exchange board, similarly hereinafter) and core cpu board (CPU master control borad
Card, similarly hereinafter), in which:
The polymorphic type interface includes an at least network communication interface, an at least USB interface, at least a serial communication interface, SIM
Card interface 41 and heavy-duty connector interface 51 for accessing input/output signal line pass through above-mentioned input/output signal line and input
The signal of communication of output includes 3 three-phase voltage electric signals, 3 three-phase current electric signals, 1 active energy pulse signal, 1
Reactive energy pulse signal, 8 On-off signal signals and 2 direct-flow input signals；
The exchange and power supply media board include (being built-in with) metering units, carrier module, full-wave rectification and filter circuit and are used for
Simultaneously provide 3 road DC power signals wide range power module, the core cpu board include (being built-in with) CPU element and
The DI input module and direct current input module being connected independently of each other with CPU element, the metering units by SPI communication line with
CPU element is connected, and the carrier module (TTL communicates pin) is connected by serial ports carrier communication line with CPU element.
Wherein, above-mentioned 3 three-phase current electric signals pass through 3 CT respectively and convert the small letter of exchange to form 3 three-phase currents
Number, above-mentioned 3 three-phase voltage electric signals pass through 3 PT respectively and convert the ac small signal to form 3 three-phase voltages, and above-mentioned 3
The ac small signal of the ac small signal of three-phase current and 3 three-phase voltages is sent into metering units simultaneously (to carry out electricity calculating
And electrical energy measurement) form and export 1 active energy pulse signal, 1 reactive energy pulse signal and 1 electricity number letter
Number, above-mentioned 1 active energy pulse signal and 1 reactive energy pulse signal are through light-coupled isolation access heavy-duty connector interface
51, above-mentioned electricity digital signal accesses CPU element through SPI communication line；
Signal wire comprising above-mentioned 3 three-phase voltage electric signals is connect by the coupling of 51 access carrier module of heavy-duty connector interface
Mouthful, to realize the carrier communication between intelligent distribution transformer terminals and low-voltage customer ammeter；
Above-mentioned 8 On-off signal signals access CPU element by DI input module, and above-mentioned 2 direct-flow input signals pass through straight
It flows input module and accesses CPU element.
Further, the network communication interface includes network interface LAN0 11 and network interface LAN1 12, the core cpu board
Further include and the network communication module of CPU element diconnected (network communicating function module, similarly hereinafter), the network communication module
It is connected simultaneously with above-mentioned network interface LAN0 11 and network interface LAN1 12.
Further, the USB interface includes usb 1 31 and USB interface 2 32, the CPU element simultaneously with it is upper
Usb 1 31 is stated to be connected with USB interface 2 32.
Further, the serial communication interface include serial ports S0 21, serial ports S1 22, serial ports S2 23, serial ports S3 24,
Serial ports O4 25 and serial ports O5 26, the core cpu board further include and the serial communication modular of CPU element diconnected (string
Row communication function module, similarly hereinafter), the serial communication modular simultaneously with above-mentioned serial ports S0 21, serial ports S1 22, serial ports S2 23,
Serial ports S3 24, serial ports O4 25 are connected with serial ports O5 26.
Further, the core cpu board further includes the wireless communication module with CPU element diconnected, the nothing
Line communication module includes 1 local wireless communication unit and 1 GPRS(long distance wireless) communication unit, the local radio communication
Unit is for connecting near field handheld device so as to product maintenance, and the GPRS communication unit with main website for being communicated.
Wherein, the local wireless communication unit is preferably using with the bluetooth module for drawing antenna.
Wherein, the GPRS communication unit preferably uses the five mould adaptive wireless communication module of 4G/3G/2G of Huawei.
Further, the 3 road DC power signals that the wide range power module provides include first via 5V main power source letter
Number, which is used to provide working power for the digital circuit of entire product and charge to super capacitor, the main electricity
Source signal further includes the second road 24V remote signalling power supply signal, the 24V remote signalling power supply signal is for switching for providing backup power supply
Input circuit is measured, further includes third road 12V power supply signal, which is used for carrier communication module.
Further, the core cpu board further includes and the data memory module of CPU element diconnected (storage function
Energy module, similarly hereinafter), the data memory module is used for high capacity data record.
Wherein, the data memory module preferably uses the NAND FLASH of the DRAM and 1GBIT of 256MBIT capacity.
Further, the core cpu board further include access CPU element encrypting module (encryption function module, under
Together), the encrypting module needs the hardware encryption module using state's net uniform requirement.
Further, the core cpu board further include access simultaneously CPU element 24 panel leds (indicator light,
Similarly hereinafter), wherein 8 indicator lights are connected to the I/O pin of CPU element, other 16 panel leds access CPU element by bus.
Referring to Fig. 3 of attached drawing, further, the core cpu board further includes power regulator module, the power supply pressure stabilizing
Module is equipped with to CPU element (and the functional modules such as other data memory modules) and provides the super capacitor that emergency back-up power is supplied
E1, the power regulator module are additionally provided with the super capacitor charging circuit being connected with super capacitor E1 and super capacitor output electricity
Road.
Wherein, the super capacitor charging circuit includes two sequentially accessed between 5.5V external power supply and super capacitor E1
Pole pipe D4 and current-limiting resistance R108.Since D4 has the tube voltage drop of 0.3V.So super capacitor highest can be charged to 5.2V or so.
When having the input of 5.5V external power supply, it on the one hand can charge to super capacitor, on the other hand can be given by diode D2 and D3
Voltage stabilizing module provides input power, and at this moment super capacitor is only filled and do not put, until being full of.D2 and D3 play the role of unilateal conduction,
Antihypertensive effect is also functioned to simultaneously, is that the voltage of U26 is maintained at 5V or less.Because U26 is booster type voltage-stabiliser tube.Input voltage needs
It keeps smaller than output voltage.
Wherein, the super capacitor output circuit includes Voltage stabilizing module FF6277, super capacitor E1 and current-limiting resistance R108
Between common end No. 3 ends of Voltage stabilizing module FF6277 are accessed by diode D6.Once 5.5V external power supply powers off, super electricity
Hold E1 and pass through the seamless investment of diode D6 immediately, provides input power to Voltage stabilizing module.It can discharge since 5.2V, put always
It can just stop working to only 2V, Voltage stabilizing module PF6277.The work that this process is sufficient for 5 minutes backup power supplies is wanted
It asks, through testing, longest can discharge normal work 8 minutes.The peripheral circuit of PF6277 refers to the typical case of PF6277 databook
Circuit.
Wherein, the metering units preferably use ATT7022 metering chip.
Wherein, the serial ports S3 24 preferably uses the port RS485.
Wherein, the serial ports O4 25 and serial ports O5 26 are preferably all made of RS232/RS485 common port.
Wherein, the polymorphic type interface may also include WiFi module antennal interface equipped with WiFi, GPRS, RF, 4G module
Antennal interface, micro power radio module antennal interface.
According to above preferred embodiment, intelligence distribution transformer terminals disclosed in present patent application, designing points are sketched such as
Under.
For environmental requirement, all using the device of wide temperature range, measures circuit and use Low Drift Temperature device and benchmark.
The range of power input is very wide, and normal three-phase 220V input, from single-phase 176V to two-phase 400V, input can be normal
Stable power supply is provided to terminal.For this requirement, our custom-mades wide range power module, input range is wide reaches
150V~480V.Rectifier system has two kinds of optional ways of full-wave rectification and halfwave rectifier.
Use super capacitor as backup power supply, when terminal mains power failure, super capacitor energy automatic seamless investment, and answer
Terminal and terminal communication module is maintained to work normally at least 5 minutes.For this requirement, on the one hand we have selected 60F/5.4V
The built-in super capacitor of large capacity.On the other hand, we devise super capacitor charge/discharge and super capacitor automatic seamless
The voltage regulator circuit of investment.
Communicating requirement clear stipulaties need 6 external serial ports.It additionally needs to connect carrier module, radio communication mold
Block, local maintenance wireless communication module, there are also at least Ethernets all the way.So, entire core cell needs to match altogether
Set 9 ports.General core cpu output after Ethernet, can at most carry 5 road serial communication ports all the way.So we
With the mode of bus extension, other 4 road serial ports is expanded.
Multiple peripheral hardwares are clearly connected in functional requirement, for being monitored to a variety of power informations.A variety of peripheral hardwares, are related to
To a variety of communication protocols.Other than 101/104 conventional specification is to main website, it is necessary to support Modbus, DL/T 645, Q/GDW
1376.1, Q/GDW 1376.4 is to peripheral hardware.So each port can there are many specifications to carry out option and installment.
In data record and data statistics functional requirement, there are a large amount of data to need to record and upload, there are also a large amount of numbers
According to being counted and stored.So needing the data storage of large capacity and the FLASH of large capacity that can just meet the requirements.I
In the invention product just use 256MBIT capacity DRAM and 1GBIT NAND FLASH.
According to above preferred embodiment, intelligence distribution transformer terminals disclosed in present patent application, working principle is sketched such as
Under.
Input/output signal line all enters and leaves from heavy-duty connector.The signal of connection has: three-phase voltage and three-phase current 6
Forceful electric power signal, two pulse signals of active energy and reactive energy, 8 On-off signal signals, 2 direct-flow input signals.
Three-phase voltage is directly inputted to 6 forceful electric power signals of three-phase current exchanges+power supply media board, wherein one side of three-phase voltage
Face carries out signal conversion by PT, for measuring；On the other hand it is defeated wide scope to be input to through three phase full wave rectification and filter circuit
Enter power module, for providing working power to entire product；It is just on the one hand also directly to carrier module, is used for carrier wave
Communication.Three-phase current signal then directly carries out signal conversion by CT, for measuring.
The ac small signal of six converted mistakes is input to the input pin of the special metering IC ATT7022, carries out electricity
Calculating and electrical energy measurement.ATT7022 directly exports two-way electrical energy impulse signals and is connected to heavy-duty connector after light-coupled isolation.And
The electricity digital signal being calculated through ATT7022 conversion is then connected to core cpu board through SPI communication line.
Carrier module is mounted in exchange+power supply media board, and the serial communication line to come from core cpu board is connected to carrier wave
The TTL of module communicates pin, and the pressure-wire to come from heavy-duty connector is directly connected to the coupling interface of carrier module.Realization is matched
Carrier communication between transformer terminals and low-voltage customer ammeter.
The power module of wide scope input, while three-way direct current power supply signal is exported, it is all the way 5V main power source, on the one hand uses
It is on the other hand super capacitor charging, to provide backup power supply in providing working power for entire product digital circuit.Another way
For 24V remote signalling power supply, it to be used for switching value input circuit.There are also being all the way exactly 12V power supply, it to be used for carrier communication module.
Interface on core board is mainly port, mainly includes 2 road network mouths, 6 road serial ports, 2 USB interfaces, one
Road local radio communication mouth, all the way GPRS wireless communication port.There are also being exactly intake and direct current signal interface, signal is from heavy duty
Connector.It is remaining to be exactly and exchange+power supply of power supply media board and communication connection.
There is main functional module on core board: serial communication functional module, network communicating function module, store function
Module, encryption function module, wireless communication module, DC measurement functional module, intake detection function module, functions of indicator light
Module, there are also power supply stabilization circuit functional modules.
Serial communication functional module is more complicated for the invention product.It is primarily due to the string of the product requirement
Mouth quantity is relatively more, needs 9 road serial ports.And our existing cpu resources are limited, CPU is realized except other necessary functions,
Most multipotency provides 5 road serial ports.So other 4 road serial ports must be gone out using bus extension.
Network communicating function module realizes two-way network communicating function.The network function included using the inside CPU all the way,
Additional DP83848 network-driven chip.Another way then uses DM9000BIEP network chip, is extended to obtain with cpu bus.
Memory function module is the aspect that the invention product compares emphasis, which has a large amount of data record and data system
Count functional requirement.The FLASH of the data storage and large capacity that need large capacity can just be met the requirements.We are in the invention product
In just use 256MBIT capacity DRAM and 1GBIT NAND FLASH.
Encryption function module is then the hardware encryption module needed using state's net uniform requirement.
Wireless communication module, there are two the requirements of aspect, are on the one hand local radio communications, are produced for handheld device
Product maintenance.It on the other hand is GPRS remote radio communication, for being communicated with main website.Local radio communication module, the invention
We have selected with the bluetooth module for drawing antenna in product.And GPRS remote wireless communication module, in the invention product we
The wireless communication module for having selected five mould of 4G/3G/2G of Huawei adaptive.
DC measurement functional module may be implemented to survey for measuring the 4-20mA transmitter direct current signal in distribution transforming system
Warm or other monitoring quantities.Signal is come in from heavy-duty connector.In the functional module we use linear optical coupling carry out signal every
From.Then using 12 ADC included inside CPU, signal measurement is carried out.
Intake detection function module, signal are also directly to come in from heavy-duty connector.It is total by CPU after light-coupled isolation
Line input, is realized to 8 tunnel intake ability detection functions.
The invention product has 24 indicator lights for showing various states, due to the I/O pin limited amount of CPU, 24 fingers
Show that lamp cannot be realized all with I/O pin.During we design, there are 8 indicator lights to use the I/O pin of CPU, and other 16
Indicator light is utilized bus and is exported.
Power supply stabilization circuit functional module there are one last is that we need to introduce.
Due to super capacitor as backup power supply discharge work when, voltage be it is unstable, voltage can be lower and lower.And I
The working power of circuit must be relatively stable.Otherwise, system will appear some unexpected failures very in the process of running
To phenomenon out of service.And in order to guarantee super capacitor electric discharge the working time length, in addition to increase super capacitor appearance
Amount is outer, can also increase the pressure stabilizing width of working power in design.That is super capacitor discharges into relatively low from full pressure
Voltage this wider range in can be transferred through voltage regulator circuit and export more stable working power.But due to product body
Long-pending limitation, the capacity of super capacitor is it is not possible that Ding get Tai is big.In order to ensure reaching when terminal mains power failure, super capacitor
Automatic seamless investment, and the requirement that terminal and terminal communication module should be maintained to work normally at least 5 minutes.We are necessary logical
The pressure stabilizing width of increase working power is crossed to extend the normal power supply time of super capacitor.
Fig. 3 show the schematic diagram of power supply stabilization circuit.E1 is super capacitor in figure.U26 is Voltage stabilizing module, and VIN is outer
The main power source that power module output comes is connect, this supply voltage in the invention product is 5.5V.+ 5V is that voltage regulator circuit output comes
Voltage, be used for system working power.The working principle of the circuit is described below:
It is the charging circuit of super capacitor first: inputs 5.5V external power supply from VIN, that is, begins through diode D4 and current limliting electricity
R108 is hindered to charge to super capacitor E1.Since D4 has the tube voltage drop of 0.3V.So super capacitor highest can be charged to the left side 5.2V
It is right.
When having the input of 5.5V external power supply, it on the one hand can charge to super capacitor, on the other hand can pass through diode
D2 and D3 provides input power to Voltage stabilizing module, and at this moment super capacitor is only filled and do not put, until being full of.D2 and D3, which is played, unidirectionally to be led
Electro ultrafiltration, while antihypertensive effect is also functioned to, it is that the voltage of U26 is maintained at 5V or less.Because U26 is booster type voltage-stabiliser tube.Input
Voltage needs to keep smaller than output voltage.
Once 5.5V external power supply powers off, super capacitor E1 passes through the seamless investment of diode D6 immediately, mentions to Voltage stabilizing module
For input power.It can discharge since 5.2V, be put into only 2V always, Voltage stabilizing module PF6277 can just stop working.This
Process is sufficient for the job requirement of 5 minutes backup power supplies, and through testing, longest can discharge normal work 8 minutes.PF6277
Peripheral circuit refer to PF6277 databook typical circuit.
It is noted that intelligence distribution transformer terminals disclosed in present patent application, core CPU integrated level is high, entire to produce
Product only use a piece of CPU, complete repertoire, have both simplified design, and saved cost.Meanwhile the backup power supply working time
It is long, it ensure that the reliable transmission of data.
For a person skilled in the art, technical solution documented by foregoing embodiments can still be repaired
Change or equivalent replacement of some of the technical features, it is all within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should be included in protection scope of the present invention.
Claims (10)
1. a kind of intelligence distribution transformer terminals, including cabinet, which is characterized in that further include positioned at the polymorphic type interface of chassis bottom and interior
It is placed in exchange and power supply media board and the core cpu board of cabinet, in which:
The polymorphic type interface includes an at least network communication interface, an at least USB interface, at least a serial communication interface, SIM
Card interface and heavy-duty connector interface for accessing input/output signal line, pass through above-mentioned input/output signal line input and output
Signal of communication include 3 three-phase voltage electric signals, 3 three-phase current electric signals, 1 active energy pulse signal, 1 it is idle
Electrical energy impulse signals, 8 On-off signal signals and 2 direct-flow input signals；
The exchange and power supply media board include metering units, carrier module, full-wave rectification and filter circuit and are used for while providing 3
The wide range power module of road DC power signal, the core cpu board include CPU element and mono- with CPU independently of each other
Member connected DI input module and direct current input module, the metering units are connected by SPI communication line with CPU element, described
Carrier module is connected by serial ports carrier communication line with CPU element；
The core cpu board further includes power regulator module, and the power regulator module is equipped with to after CPU element offer promptly
The super capacitor E1 of stand-by power source supply, the power regulator module are additionally provided with the super capacitor charging electricity being connected with super capacitor E1
Road and super capacitor output circuit.
2. intelligence distribution transformer terminals according to claim 1, it is characterised in that:
Above-mentioned 3 three-phase current electric signals pass through 3 CT respectively and convert the ac small signal to form 3 three-phase currents, and above-mentioned 3
Three-phase voltage electric signal passes through 3 PT respectively and converts the ac small signal to form 3 three-phase voltages, above-mentioned 3 three-phase currents
The ac small signal of ac small signal and 3 three-phase voltages is sent into metering units simultaneously to form and export 1 active energy
Pulse signal, 1 reactive energy pulse signal and 1 electricity digital signal, above-mentioned 1 active energy pulse signal and 1 nothing
Function electrical energy impulse signals access heavy-duty connector interface through light-coupled isolation, and above-mentioned electricity digital signal accesses CPU through SPI communication line
Unit；
Signal wire comprising above-mentioned 3 three-phase voltage electric signals is connect by the coupling of heavy-duty connector interface access carrier module
Mouthful；
Above-mentioned 8 On-off signal signals access CPU element by DI input module, and above-mentioned 2 direct-flow input signals pass through straight
It flows input module and accesses CPU element.
3. intelligence distribution transformer terminals according to claim 1, which is characterized in that the super capacitor charging circuit includes 5.5V
The diode D4 and current-limiting resistance R108 sequentially accessed between external power supply and super capacitor E1.
4. intelligence distribution transformer terminals according to claim 3, which is characterized in that the super capacitor output circuit includes pressure stabilizing
Voltage stabilizing module FF6277 is accessed by diode D6 in module FF6277, the common end between super capacitor E1 and current-limiting resistance R108
No. 3 end.
5. intelligence distribution transformer terminals according to claim 1, it is characterised in that:
The network communication interface includes network interface LAN0 and network interface LAN1, and the core cpu board further includes two-way with CPU element
The network communication module of connection, the network communication module are connected with above-mentioned network interface LAN0 and network interface LAN1 simultaneously；
The USB interface includes usb 1 and USB interface 2, the CPU element simultaneously with above-mentioned usb 1 and USB interface 2
It is connected；
The serial communication interface includes serial ports S0, serial ports S1, serial ports S2, serial ports S3, serial ports O4 and serial ports O5, the CPU core
Core card further includes the serial communication modular with CPU element diconnected, the serial communication modular simultaneously with above-mentioned serial ports S0,
Serial ports S1, serial ports S2, serial ports S3, serial ports O4 are connected with serial ports O5.
6. intelligence distribution transformer terminals according to claim 5, it is characterised in that:
The metering units use ATT7022 metering chip；
The serial ports S3 uses the port RS485；
The serial ports O4 and serial ports O5 are all made of RS232/RS485 common port.
7. intelligence distribution transformer terminals according to claim 1, which is characterized in that the core cpu board further includes mono- with CPU
The wireless communication module of first diconnected, the wireless communication module include 1 local wireless communication unit and 1 GPRS communication
Unit, the local radio communication unit are used to carry out with main website for connecting near field handheld device, the GPRS communication unit
Communication.
8. intelligence distribution transformer terminals according to claim 7, it is characterised in that:
The local wireless communication unit is used with the bluetooth module for drawing antenna；
The GPRS communication unit uses the five mould adaptive wireless communication module of 4G/3G/2G of Huawei.
9. intelligence distribution transformer terminals according to claim 1, which is characterized in that 3 tunnels that the wide range power module provides
DC power signal includes first via 5V master battery signal, the second road 24V remote signalling power supply signal and third road 12V power supply signal.
10. intelligence distribution transformer terminals according to claim 1, it is characterised in that:
The core cpu board further includes the data memory module being connected with CPU element, encrypting module and 24 panel instructions
Lamp, wherein 8 indicator lights are connected to the I/O pin of CPU element, other 16 panel leds access CPU element by bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445660.5A CN109599944A (en) | 2018-11-29 | 2018-11-29 | Intelligent distribution transformer terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445660.5A CN109599944A (en) | 2018-11-29 | 2018-11-29 | Intelligent distribution transformer terminals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109599944A true CN109599944A (en) | 2019-04-09 |
Family
ID=65959194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445660.5A Pending CN109599944A (en) | 2018-11-29 | 2018-11-29 | Intelligent distribution transformer terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109599944A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111132062A (en) * | 2019-12-25 | 2020-05-08 | 广州东方电科自动化有限公司 | Distribution transformer monitoring terminal supporting dual-master-station redundant communication and data processing method |
| CN112117832A (en) * | 2020-10-09 | 2020-12-22 | 浙江涵普电力科技有限公司 | Intelligent platform area fusion terminal |
| CN112821540A (en) * | 2021-01-06 | 2021-05-18 | 天津津航计算技术研究所 | Simulation system control flow implementation method based on real environment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202084993U (en) * | 2011-05-17 | 2011-12-21 | 中国电力科学研究院 | Standard intelligent distribution transform terminal |
| EP2698896A2 (en) * | 2012-08-17 | 2014-02-19 | LG Electronics, Inc. | Energy storage device, power management device, mobile terminal and method for operating the same |
| CN206922508U (en) * | 2017-06-30 | 2018-01-23 | 山东泰开自动化有限公司 | Universal rural power grids intelligence distribution transformer terminals |
| CN108565960A (en) * | 2018-05-19 | 2018-09-21 | 北京合众汇能科技有限公司 | A kind of DTU distribution terminals super capacitor backup power system |
-
2018
- 2018-11-29 CN CN201811445660.5A patent/CN109599944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202084993U (en) * | 2011-05-17 | 2011-12-21 | 中国电力科学研究院 | Standard intelligent distribution transform terminal |
| EP2698896A2 (en) * | 2012-08-17 | 2014-02-19 | LG Electronics, Inc. | Energy storage device, power management device, mobile terminal and method for operating the same |
| CN206922508U (en) * | 2017-06-30 | 2018-01-23 | 山东泰开自动化有限公司 | Universal rural power grids intelligence distribution transformer terminals |
| CN108565960A (en) * | 2018-05-19 | 2018-09-21 | 北京合众汇能科技有限公司 | A kind of DTU distribution terminals super capacitor backup power system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111132062A (en) * | 2019-12-25 | 2020-05-08 | 广州东方电科自动化有限公司 | Distribution transformer monitoring terminal supporting dual-master-station redundant communication and data processing method |
| CN112117832A (en) * | 2020-10-09 | 2020-12-22 | 浙江涵普电力科技有限公司 | Intelligent platform area fusion terminal |
| CN112117832B (en) * | 2020-10-09 | 2024-04-16 | 浙江涵普电力科技有限公司 | Intelligent transformer area fusion terminal |
| CN112821540A (en) * | 2021-01-06 | 2021-05-18 | 天津津航计算技术研究所 | Simulation system control flow implementation method based on real environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107359487A (en) | Distributed remote control apparatus socket and management of power use method | |
| CN109599944A (en) | Intelligent distribution transformer terminals | |
| CN105356517B (en) | Home energy dynamically distributes router, method and home energy generation schedule method | |
| CN108565960A (en) | A kind of DTU distribution terminals super capacitor backup power system | |
| CN207301740U (en) | A kind of energy consumption management system | |
| CN104502649B (en) | Low-power consumption single-phase intelligent power meter | |
| CN201313518Y (en) | Integrated automation system for electrified railway digital traction substation | |
| CN109633261A (en) | A kind of modularization multiloop metering system with communication function | |
| CN101800443A (en) | Electric power on-site monitoring equipment | |
| CN103051061B (en) | Intelligent power translating eqipment and intelligent power communication system | |
| CN109449944A (en) | Substation's two-way type DC power control system and method | |
| CN206179193U (en) | Concentrator | |
| CN206991535U (en) | Novel intelligent meter reading collecting transmitter | |
| CN207181523U (en) | A kind of single-phase four loops radio energy harvester | |
| CN207457752U (en) | A kind of wireless remote timing control switch | |
| CN103364668B (en) | A kind of DC distribution equipment intelligent monitoring and energy-consumption monitoring system | |
| CN206411847U (en) | A kind of embedded RDSS communication modules | |
| CN108964253A (en) | A kind of expansible off-line UPS power supply | |
| CN107491013A (en) | A kind of wireless remote timing control switch | |
| CN213602450U (en) | Monitoring device and monitoring system | |
| CN204597488U (en) | Based on the intelligent low-pressure distribution JP compensating cabinet of GPRS | |
| CN211321024U (en) | Embedded distribution transformer monitoring and metering device and distribution room terminal | |
| CN203014496U (en) | Intelligent electricity using conversion device and intelligent electricity using communication system | |
| CN209169966U (en) | A kind of energy routing controller suitable for hybrid accumulator | |
| CN202495806U (en) | Distribution integrated monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190409 |