CN108111347A - A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system - Google Patents
A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system Download PDFInfo
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- CN108111347A CN108111347A CN201711381292.8A CN201711381292A CN108111347A CN 108111347 A CN108111347 A CN 108111347A CN 201711381292 A CN201711381292 A CN 201711381292A CN 108111347 A CN108111347 A CN 108111347A
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- transformer
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- distribution power
- line monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 238000003745 diagnosis Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 46
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000011045 prefiltration Methods 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H02J13/0006—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
-
- 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
-
- 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
-
- 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
- Y04S40/128—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 involving the use of Internet protocol
Abstract
The invention discloses a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis systems；Including cloud computing platform, communications management unit, on-line monitoring terminal and intelligent terminal, the on-line monitoring terminal is located in the low tension loop of transformer and distribution power station low-pressure side；The cloud computing platform includes Web server, database server and interface server, and the Web server connects an at least database server, and every database server connects an at least interface server；Every interface server connects at least one communications management unit, and each communications management unit corresponds to a transformer and distribution power station, and the communications management unit communicates with the on-line monitoring terminal in corresponding transformer and distribution power station；The Web server is used to establish the communication of the intelligent terminal and correspondence database server.It has the technical effect that：Operation maintenance personnel can be notified at the first time when breaking down tripping, can accurately obtain the real-time curve of each electrical quantity before and after failure occurs, while provide the failure suggestion of possible generation.
Description
Technical field
The present invention relates to a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis systems in power grid security field.
Background technology
The power failure caused by user 380V sides switch trip often occurs in becoming distribution network operation.It is due to user side, i.e., low
Press side part throttle characteristics multifarious, and 10kV transformer and distribution power station low-pressure sides do not install measuring instrument generally.Therefore when low-pressure side goes out
Line breaks down after tripping, tends not to timely failure judgement the reason is that due to Switch main body failure or line fault.At present
Multiple teams and groups' arrival scenes are generally required for the ease of repairing in time, while carrying about standby is also wanted to switch, heavy workload, response speed
Degree is slow.
The operating pressure for frequently substantially increasing power grid operation management personnel of such event, it is impossible to analysis in time
Searching failure cause can also cause the satisfaction of user to decline, so as to influence the image of power supply enterprise.
Once switch trip occurs in low-voltage distribution system, due to lacking monitoring, diagnosing means, often users is waited to dial visitor
It can just send someone to scene to be handled after taking phone, cause customer outage hours long.The generation of above-mentioned phenomenon can all increase O＆M
Person works measure, and reduce CSAT.
The content of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of transformer and distribution power station Low-side faults to supervise online
Detection diagnostic system, can break down tripping the moment at the first time notice operation maintenance personnel, can accurately obtain failure occur before and after
The real-time curve of each electrical quantity, while provide the failure suggestion that may occur.
Realizing a kind of technical solution of above-mentioned purpose is：A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system；
Including cloud computing platform, communications management unit, monitor terminal and intelligent terminal on-line,
The on-line monitoring terminal is located in the low tension loop of transformer and distribution power station low-pressure side；
The cloud computing platform includes Web server, database server and interface server, and the Web server connects
A few database server is connected to, every database server connects an at least interface server；
Every interface server connects at least one communications management unit, and each communications management unit corresponds to a change distribution
It stands, the communications management unit communicates with the on-line monitoring terminal in corresponding transformer and distribution power station；
The Web server is used to establish the communication of the intelligent terminal and correspondence database server.
Further, the Web server is carried out with the intelligent terminal by Internet or 3G network or 4G networks
Communication, the interface server are communicated with corresponding communications management unit by GPRS network.
Further, the communications management unit internal memory.
Further, the communications management unit is communicated by WIFI with maintenance terminal.
Further, the on-line monitoring terminal includes microprocessor and in the low tension loop of the transformer and distribution power station
The intake for opening access point be scanned and scanning result inputted into the intake module of the microprocessor, for by microprocessor
The amount of the outputing module and be acquired for each phase current voltage of the low tension loop to transformer and distribution power station that the amount of outputing of device exports
And input the AC sampling module of the microprocessor.
Further, the microprocessor opens incoming interface equipped with signal, and the intake module is equipped with before opening
It puts filter unit and is connected to the signal and open incoming interface and the intake input unit between opening pre-filter.
Further, the microprocessor is equipped with UART1 interfaces, and the intake module is equipped with described in connection
The light-coupled isolation unit of UART1 interfaces and the RS485 conversion unit of protocol of the connection light-coupled isolation unit；The communication tube
It manages unit and is equipped with RS485 interfaces；RS485 conversion unit of protocol connects the RS485 interfaces on the communications management unit.
Further, the microprocessor includes completing relay protection logic computing and failure wave-recording and generate to open
The remote control amount latching logic unit of output, the remote control that the amount of the outputing module includes connecting the remote control amount latching logic unit are defeated
Go out driver and the connection remote control output driver outputs relay.
Further, the microprocessor is equipped with AD conversion unit, and the AC sampling module includes matching somebody with somebody change
The AC sampling unit and be connected to described exchange that each phase voltage and the electric current of the low tension loop of power station low-pressure side are sampled
AC sampling pre-filter between the AD conversion unit of sampling unit and the microprocessor.
Further, the intelligent terminal is smart mobile phone or tablet computer.
Employ a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system of the present invention；Including cloud computing platform,
Communications management unit, on-line monitoring terminal and intelligent terminal, the on-line monitoring terminal are located at the low of transformer and distribution power station low-pressure side
Push back road；The cloud computing platform includes Web server, database server and interface server, and the Web server connects
A few database server is connected to, every database server connects an at least interface server；Every interface server
Connect at least one communications management unit, each communications management unit corresponds to a transformer and distribution power station, the communications management unit with
On-line monitoring terminal in corresponding transformer and distribution power station communicates；The Web server for establish the intelligent terminal with it is corresponding
The communication of database server.It has the technical effect that：Real time on-line monitoring can be carried out to power distribution system equipment, be jumped when breaking down
The lock moment, notice operation maintenance personnel, system can accurately obtain the real-time curve of each electrical quantity before and after failure occurs at the first time, simultaneously
The failure suggestion that may occur is provided, the APP that operation maintenance personnel passes through intelligent terminal may have access to these data, can quickly carry out event
Hinder reason judgement and accident treatment.
Description of the drawings
Fig. 1 is a kind of schematic diagram of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system of the present invention.
Fig. 2 is a kind of showing for the on-line monitoring terminal of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system of the present invention
It is intended to.
Specific embodiment
Referring to Fig. 1, the present inventor in order to preferably understand technical scheme, is led to below
Specifically embodiment is crossed, and is described in detail with reference to attached drawing：
A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system of the present invention includes cloud computing platform 4, matches somebody with somebody with change
The one-to-one communications management unit 2 in power station is equipped with several on-line monitoring terminals 1 in each transformer and distribution power station, and corresponding logical
Letter administrative unit 2 communicates.
On-line monitoring terminal 1 can correspond to the electrical operation ginseng of the low tension loop of low-pressure side in transformer and distribution power station with online acquisition
Number, and failure wave-recording function is provided.
Monitoring terminal 1 on-line includes picoprocessor 11 and intake module 12, the amount of outputing module 13 and AC sampling
Module 14.
Microprocessor 11 is equipped with UART1 interfaces 111, signal opens incoming interface 112, UART0 system maintaining interfaces 113, key
Disk operate interface 114, clearing lamp 115, LCD interface 116, hardware watchdog 117, memory, expansion card 119, mould
Temperature measurement unit 11b and remote control amount latching logic unit 11c in number converting unit 11a, plate.Memory is including capacity
The static memory 1181 and capacity of 512K is the FLASH memory 1182 of 1M, 2M or 4M, and expansion card 119 extends for SD
Card.
Intake module 12 includes multiple open into pre-filter 121, intake input unit 122, light-coupled isolation list
Member 123, RS485 conversion unit of protocol 124 and power supply conversing circuits 125.Wherein open connected into pre-filter 121 it is corresponding
Intake input unit 122, the signal that intake input unit 122 connects microprocessor 11 open incoming interface 112.Light-coupled isolation list
The UART1 interfaces 112 of the input terminal connection microprocessor 11 of member 123, the output terminal connection RS485 associations of light-coupled isolation unit 123
Discuss converting unit 124.Power supply conversing circuits 125 connect power supply and microprocessor 11.
The amount of outputing module 13 includes the remote control output driving being connected with the remote control amount latching logic unit 11c of microprocessor 11
Outputing relay 132, connecting between device 131, the low tension loop for being connected to transformer and distribution power station low-pressure side and remote control output driver 131
The clock unit 133 of microprocessor 11 is connect, connects the rated capacity pre-filter of the AD conversion unit 11a of microprocessor 11
134 and the rating data input unit 135 of connection rated capacity pre-filter 134.
AC sampling module 14 includes each phase voltage of the low tension loop to transformer and distribution power station low-pressure side and electric current samples
AC sampling unit 141 and be connected between AC sampling unit 141 and the AD conversion unit 11a of microprocessor 11
AC sampling pre-filter 142.
Microprocessor 11 by AC sampling module 14 to the electric current of each phase of the low tension loop of transformer and distribution power station low-pressure side and
Voltage, which is sampled and passes through AD conversion unit 11a, obtains sampled result, by intake module 12 to transformer and distribution power station low pressure
The intake for opening access point in the low tension loop of side is scanned, and is opened incoming interface 112 by signal after scanning and inputted micro- place
Manage device 11.AC sampling module 14 completes 72 samplings in per cycle, and intake module 12 completes 72 scanning.Microprocessor 11
The electrical figureofmerits such as power, electricity, power factor, the requirement of corresponding low tension loop and voltage swell, temporarily can be calculated
The power qualities information such as drop, harmonic wave, unusual fluctuations.
Microprocessor 11 is according to the sampled result of AC sampling module 14 and the scanning result of intake module 12, weekly
Ripple completes the calculating of first harmonic component, power calculation and watt metering, and passes through remote control amount latching logic unit 11c and complete weekly
The relay protection logic computing and failure wave-recording that ripple is 12 times, and pass through the output that the amount of outputing module 12 completes the amount of outputing, change is matched somebody with somebody
The low tension loop in power station is operated.
UART1 interfaces 111 complete message framing, packet sending and receiving and message for communicating with communications management unit 2
Parsing.
Microprocessor 11 connects hardware check module and software monitors module by UART0 system maintaining interfaces 113：In real time
The self diagnosis of each module of hardware is carried out, and monitors the normal operation of each software module.
Communications management unit 2 connects the RS485 conversion unit of protocol 124 of online monitoring terminal 1 by RS485 interfaces, real
Now with monitoring the communication of terminal 1 on-line, communications management unit 2 communicates with all on-line monitoring terminals 1 in transformer and distribution power station, acquisition
The data message of each low tension loop in transformer and distribution power station.Communications management unit 2 can be with being directly installed on the switchgear of transformer and distribution power station
On.The built-in big buffer memory of communications management unit 2 can be locally stored in the data of line monitoring terminal 1 upload.When with cloud meter
After the communication disruption recovery for calculating platform 4, data can be resumed to cloud computing platform 4.Communications management unit 2 supports WIFI, on the spot
It communicates with maintenance terminal 3, communications management unit in transformer and distribution power station 2 and each on-line monitoring terminal 1 is safeguarded, tieed up
It protects simple and convenient.
The interface that cloud computing platform 4 includes with the communications management unit 2 of several corresponding transformer and distribution power stations communicates takes
Business device 41, the database server 42 of connection corresponding interface server 41 and the Web clothes of each database server 42 of connection
Business device 43.The communications management unit 2 of each transformer and distribution power station is taken by GPRS mobile networks interface corresponding in cloud computing platform 4
Business device 41 communicates.In view of system scale, each interface server 41 communicates with multiple communications management units 2.Interface takes
Corresponding database server 42 is arrived in storage after business device 41 summarizes each transformer and distribution power station data.Each database server 42 on hardware
It is relatively independent.And the quantity of interface server 41 and database server 42 can expand, but separate unit interface service
The upper limit of 42 access amount of device 41 and separate unit database server determines, thus system performance will not expand with system total size and
It is affected.
Access entrance of the Web server 43 as intelligent terminal 5.Web server 43 is according to the login client of intelligent terminal 5
Information judges its corresponding database server 42, and data are inquired about from corresponding database server 42 and return to intelligent terminal 5
Browser interface.
Web server 43 uses PHP as server end developing instrument, using HTML5/CSS3/JavaScript conducts
Front- end Developing Tool has following functions：
It communicates with each communications management unit 2：Low tension loop in each transformer and distribution power station 400V low-voltage cabinets of automatic collection
Inlet-outlet line voltage, electric current, power, electricity, requirement, power factor, temperature data, the data timing collected is saved in
In database server 42, retention cycle is 5 minutes；It gathers the switch changed position of the low tension loop of each transformer and distribution power station and has a power failure simultaneously
SOE records are provided；Carry out the voltage swell of each transformer and distribution power station, temporarily drop number counts and provides the recording song of COMTRADE forms
Line, the current anomaly fluctuation for recording each transformer and distribution power station is such as fallen, short circuit and the recording curve for providing COMTRADE forms.
The electric hookup of each transformer and distribution power station and real time execution parameter are shown in its man-machine interface；It shows in graphical form
Show the parameter of designated equipment in any one transformer and distribution power station, as three-phase voltage, electric current, active power, reactive power, power because
The real-time tendency and history curve of element, harmonic wave etc.；Support the display modes such as block diagram, pie chart；Support out-of-limit parameter flicker, discoloration
Dynamic Announce；Support audio alert；Support the out-of-limit or alarm that has a power failure that can be pushed by wechat, APP etc. to intelligent terminal 5.
Each transformer and distribution power station historical operating parameter inquiry, by curve, forms mode is shown；Any transformer and distribution power station is carried out
Data comparison, arbitrary period, arbitrary data object progress shown in same curves coordinate system, comparative analysis；Any change distribution
Station failure recording is inquired about, and can have access to failure wave-recording curve after tripping of breaking down carries out accident analysis；The change of any transformer and distribution power station
Depressor and loop load rate statistical query show transformer load rate distributed area with percentage cake chart；Any transformer and distribution power station
History alarm inquiry, history occur alarm and event query.
By transformer and distribution power station, range statistics load daily paper, monthly magazine, annual report；By transformer and distribution power station, region, unit statistics electricity day
Report, monthly magazine, annual report；System maintenance district management；Transformer and distribution power station management；Switchgear management；Circuit management；Alarm is set；User
Management；Role Management；Rights management.
Intelligent terminal 5 is communicated by 3G, 4G or internet with Web server 43.Intelligent terminal 5 uses
Andriod systems have following functions：
User and system administration；It logs in and nullifies；Version querying；Online upgrading；Alarm management, alarm pushing, intelligence is eventually
Out-of-limit, tripping that the transformer and distribution power stations of 5 on-line monitoring of end generate, communication failure information by APP to 5 real time propelling movement of intelligent terminal,
The user of intelligent terminal 5 opens warning information by APP and checks detailed warning content, and the user of intelligent terminal 5 can be in alarm
Hold and carry out " confirmation " or " involution " operation.Alarm certain time does not obtain " confirmation ", can step by step be pushed away according to predefined level
Send alarm.
Operating analysis：Inquire about the history run curve of low tension loop, curve type includes day, the moon, year etc., can by region,
It stands, low tension loop is inquired about；Curve type may be selected, including active and reactive, electric current, voltage, power factor (PF), requirement etc.；It can
The maximum of display curve, minimum value, maximum time, minimum value time.A plurality of curve can be shown on the same coordinate system, is shown
Show the total voltage harmonic wave of low tension loop and current harmonics amount；Per diem, the moon, the voltage and current harmonic wave of year statistical query low tension loop
Probability distribution curve；Call harmonic wave record file detailed from the on-line monitoring terminal 1 of transformer and distribution power station, display each harmonic content system
It counts.The error listing that display transformer and distribution power station and low tension loop occurred；Event is called from the on-line monitoring terminal 1 of transformer and distribution power station
It is detailed to hinder recording, shows failure wave-recording operation curve and equipment management, device model definition, device parameter inquiry etc..
Intelligent terminal 5 can be smart mobile phone or tablet computer.
A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system of the present invention can carry out power distribution system equipment real
When monitor on-line, when break down tripping the moment at the first time notice operation maintenance personnel, system can accurately obtain failure occur before and after
The real-time curve of each electrical quantity, while provide the failure suggestion that may occur.The APP that operation maintenance personnel passes through intelligent terminal 5
These data are accessed, can quickly carry out failure cause judgement and accident treatment.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (10)
1. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system, it is characterised in that：
Including cloud computing platform, communications management unit, monitor terminal and intelligent terminal on-line,
The on-line monitoring terminal is located in the low tension loop of transformer and distribution power station low-pressure side；
The cloud computing platform includes Web server, database server and interface server, and the Web server is connected to
A few database server, every database server connect an at least interface server；
Every interface server connects at least one communications management unit, and each communications management unit corresponds to a transformer and distribution power station,
The communications management unit communicates with the on-line monitoring terminal in corresponding transformer and distribution power station；
The Web server is used to establish the communication of the intelligent terminal and correspondence database server.
2. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 1, it is characterised in that：Institute
It states Web server to communicate by Internet or 3G network or 4G networks with the intelligent terminal, the interface server
It is communicated with corresponding communications management unit by GPRS network.
3. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 1, it is characterised in that：Institute
State communications management unit internal memory.
4. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 1, it is characterised in that：Institute
Communications management unit is stated to communicate with maintenance terminal by WIFI.
5. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 1, it is characterised in that：Institute
Stating on-line monitoring terminal includes microprocessor and the intake for opening access point in the low tension loop of the transformer and distribution power station is carried out
It scans and scanning result is inputted into the intake module of the microprocessor, is outputed for export the amount of outputing of microprocessor
Amount module and each phase current voltage for the low tension loop to transformer and distribution power station are acquired and input the microprocessor
AC sampling module.
6. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 5, it is characterised in that：Institute
It states microprocessor and opens incoming interface equipped with signal, the intake module is equipped with and opens into pre-filter and be connected to institute
It states signal and opens incoming interface and the intake input unit between opening pre-filter.
7. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 6, it is characterised in that：Institute
Microprocessor is stated equipped with UART1 interfaces, the intake module is equipped with the light-coupled isolation unit for connecting the UART1 interfaces
And the RS485 conversion unit of protocol of the connection light-coupled isolation unit；The communications management unit is equipped with RS485 interfaces；
RS485 conversion unit of protocol connects the RS485 interfaces on the communications management unit.
8. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 5, it is characterised in that：Institute
Stating microprocessor includes completing relay protection logic computing and failure wave-recording and generates the remote control amount latching logic for the amount of outputing
Unit, the amount of the outputing module include the remote control output driver for connecting the remote control amount latching logic unit and connection institute
That states remote control output driver outputs relay.
9. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 5, it is characterised in that：Institute
Microprocessor is stated equipped with AD conversion unit, the AC sampling module includes the low tension loop to transformer and distribution power station low-pressure side
The AC sampling unit and be connected to the AC sampling unit and the microprocessor that each phase voltage and electric current are sampled
AD conversion unit between AC sampling pre-filter.
10. a kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system according to claim 1, it is characterised in that：
The intelligent terminal is smart mobile phone or tablet computer.
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| CN201711381292.8A CN108111347A (en) | 2017-12-20 | 2017-12-20 | A kind of transformer and distribution power station Low-side faults on-line monitoring and diagnosis system |
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| CN109039881A (en) * | 2018-09-05 | 2018-12-18 | 苏州蓝蜘蛛智能科技有限公司 | A kind of intelligent power distribution monitoring management system and information-pushing method |
| CN109787360A (en) * | 2019-02-22 | 2019-05-21 | 合肥齐泰光电科技有限公司 | A kind of real time on-line monitoring device of for transformer |
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| CN111090023A (en) * | 2019-12-13 | 2020-05-01 | 国网浙江江山市供电有限公司 | Low-voltage power failure monitoring system |
| CN111413955A (en) * | 2020-04-16 | 2020-07-14 | 华能国际电力股份有限公司 | Generator-transformer unit remote fault diagnosis system |
| CN113052342A (en) * | 2021-04-20 | 2021-06-29 | 北京九州恒盛电力科技有限公司 | Internet-based intelligent operation and maintenance service business model for electric power |
| CN113052342B (en) * | 2021-04-20 | 2023-08-22 | 北京九州恒盛电力科技有限公司 | Internet-based electric power intelligent operation and maintenance service business mode |
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