CN107483082A - A kind of low-voltage distribution network topology automatic identification method and system based on the work frequency carrier communication technology - Google Patents

A kind of low-voltage distribution network topology automatic identification method and system based on the work frequency carrier communication technology Download PDF

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Publication number
CN107483082A
CN107483082A CN201710706444.0A CN201710706444A CN107483082A CN 107483082 A CN107483082 A CN 107483082A CN 201710706444 A CN201710706444 A CN 201710706444A CN 107483082 A CN107483082 A CN 107483082A
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topology
distribution network
low
automatic identification
identification
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CN107483082B (en
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齐志刚
张宁欢
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HANGZHOU HARMONY TECHNOLOGY Co Ltd
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HANGZHOU HARMONY TECHNOLOGY Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/12Arrangements for maintenance or administration or management of packet switching networks network topology discovery or management

Abstract

The invention discloses a kind of low-voltage distribution network topology automatic identification method and system based on the work frequency carrier communication technology, by being provided with a concentrator and a topology automatic identification device beside each transformer of low-voltage distribution network taiwan area, it is connected between concentrator and topology automatic identification device by 485 circuits, it is internal or external on low-voltage distribution network taiwan area intelligent electric meter is distributed in have bimodulus collector, the installation of power distribution network topological smart identification main website is being installed positioned at power marketing center or electric power inspection department, then it carries out automatic identification by the said equipment, most newly-established topological link relation table data are converted to low-voltage network geographical topology figure and logical topology chart and update the original geographical topology figure of taiwan area and taiwan area logical topology chart by power distribution network topological smart identification main website, and record topology status displacement event.The present invention is advantageous to real-time update data, is easy to greatly improve the promptness of O&M and inspection repairing, improves electric power enterprise economic benefit and play an important role.

Description

A kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology and System
Technical field
The present invention relates to electric power low-pressure distribution network technology field, more particularly to it is a kind of based on the low of the work frequency carrier communication technology It is press-fitted net topology automatic identifying method and system.
Background technology
Low-voltage platform area power distribution network carries the key functions of power network end feed household electricity, wherein passing through low-voltage distribution System topological automatic identifying method come calculate garden, cell, in building each electrical equipment annexation, and with certain mode These annexations are stored, topological analysis is in the calculating of low-voltage distribution system damage, energy-saving analysis in highly important Position.If low-voltage network family variable topological relation occurs wrong, serious shadow can be produced to the accuracy of taiwan area line loss calculation Ring, in addition it is serious the economical operation of power network can also be adversely affected, it may cause low-voltage network topological relation wrong By mistake the reason for, mainly there are two kinds of reasons:First, due to low-voltage network construction period electric supply meter circuit archives mistake cause it is low It is press-fitted power grid topological relation mistake;Second, low-voltage platform area power distribution network breaks down, when adjusting wiring in inspection repairing, change Ammeter archives do not record or misregistration causes low-voltage network topological relation mistake.Traditional low-voltage distribution net topology identification Detection rely primarily on manual inspection means, i.e., according to low-voltage platform area power distribution network be distributed and move towards, using hand-held family become identifier by Duan Jinhang is manually generally investigated, and because low-voltage network net distribution circuit is more, cable duct or overhead transmission line parallel laying, inspection is not But efficiency is low, cost is high, and low-voltage platform area family variable topological information can not be obtained in real time, exactly.
Therefore, the importance for avoiding taiwan area power distribution network topology status inaccurate is exactly that to carry out taiwan area accurately and in time low The identification of power network topology status is press-fitted, becomes relation so as to correct wrong family as early as possible, avoids grid line loss calculating and economical operation from going out Existing problem.
The content of the invention
Refer to that the transformer installed in somewhere namely refers in dress, certain station power distribution run about " platform change " in the present invention Transformer and " taiwan area " refer to that platform becomes the regional extent of power supply, and it is the technical term of this area power industry.
For in the prior art the defects of, the invention provides a kind of low-voltage distribution network based on the work frequency carrier communication technology to open up Flutter automatic identifying method and system.
To achieve these goals, the technical solution used in the present invention is:
A kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology, comprises the following steps:
(1) installation of equipment, a concentrator and a topology are installed beside each transformer of low-voltage distribution network taiwan area Automatic identification equipment, it is connected between concentrator and topology automatic identification device by 485 circuits, is being distributed in low-voltage distribution network platform It is internal or external on area's intelligent electric meter to have bimodulus collector, distribution is being installed positioned at power marketing center or electric power inspection department Net topology Intelligent Recognition main website;
(2) identification process, topology automatic identification device or concentrator pass through low-voltage distribution network circuit (220V circuits and 485 lines Road) to be distributed on low-voltage distribution network taiwan area intelligent electric meter it is internal or external have bimodulus collector send the multichannel based on wave distortion Topological identification signal, in order to adapt to low-voltage network circuit complex distribution, the more situation of all kinds of electrical equipment interference, multichannel topology Identification signal is transmitted using special distorted waveform on distribution network line, and the identification signal frequency is low, and with preferably anti- Interference performance, transmission range is more than 2000m, it is not necessary in taiwan area separately laying-out, is distributed in low-voltage distribution network taiwan area intelligence electricity Internal or external bimodulus collector reads the GPS information of intelligent electric meter, terminal iidentification coding, geocoding and address code on table The end topoligical node information data that ammeter and platform become is combined into, every intelligence electricity is formed by end topoligical node information data Original topological link relation table information data of table, and it is distributed in low-voltage distribution network taiwan area in pre-existing bimodulus collector simultaneously Internal or external bimodulus collector generates new topological link relation table data, institute after receiving topological identification signal on intelligent electric meter State bimodulus collector original topological link relation table information data compares with new topological link relation table data, if different Normal then generation topology status displacement event, while substitute original topological link relation table information with new topological link relation table data Data, and new topological link relation table data are stored in bimodulus collector, sending poll in topology automatic identification device recruits When calling out instruction, being distributed in bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter will most newly-established topological chain Connect relation table data to carry out being uploaded to topology automatic identification device, topology automatic identification device closes most newly-established topological link It is that table data upload to power distribution network topological smart identification main website, distribution net topology intelligence by GPRS radio channels or 4G radio channels It can identify that most newly-established topological link relation table data are converted to low-voltage network geographical topology figure and logical topology by main website Scheme and update the original geographical topology figure of taiwan area and taiwan area logical topology chart, and record topology status displacement event.
The multichannel topology identification signal based on wave distortion is become by area code, taiwan area coding, platform in the step (2) Mark and phase sequence identification information composition.
Automatic identification starts and included in the step (2):
Timing identifies that topology automatic identification device is according to the time of setting, start by set date automatic identification process;
Random identification, identify main website in power distribution network topological smart or send out to start with hand-held mobile terminal at taiwan area scene and know Do not instruct and give topology automatic identification device, start automatic identification process;
Anomalous identification, after topology automatic identification device receives brown-outs or the multinomial power-off event of the overall situation, in about timing Between be regarded as a power failure item of the taiwan area in interval, and startup automatic identification process is determined by topology automatic identification device.
Step (2) the multichannel topology identification signal is meant that by the volume in the affiliated city of low-voltage distribution network taiwan area, low-voltage platform area Number, distribution transformer (platform change) numbering and low-voltage network line phase-sequence detection form information.
Affiliated platform becomes, after change before the displacement event package of topology status described in the step (2) contains intelligent electric meter, change Affiliated platform becomes and the time of change in topology identification.
Above topology automatic identification equipment sends multichannel topology identification signal in the present invention, is required to electric energy acquisition collection every time Coordination between middle device, electric energy centralized meter-reading system copy and accept topological chain using the meter reading process and topology automatic identification device of carrier communication Connect the process of information can not carry out simultaneously (i.e. centralized meter-reading system meter reading when automatic recognition system can not work, automatic recognition system work Centralized meter-reading system is asked to be stopped when making, the acquiring electric energy information of intelligent electric meter and the transmission of topological identification signal pass through concentrator Between coordination), topological identification signal (the topological identification signal each several part description:The affiliated city of low-voltage distribution network taiwan area borrows Communicate area code;Low-voltage platform area numbering has electric power asset administrative department to give, and distribution transformer numbering is power equipment numbering or platform Serial number in area, low-voltage network phase sequence be three-phase and four-line voltage phase sequence numbering) and carrier communication adhere to different frequency bands, Er Qieshi separately Level signal is operated in the time slot of carrier communication, determines to send the identification signal phase in topology automatic identification device or concentrator Between, electric energy acquisition information can not be transmitted on low-voltage distribution network circuit, therefore topological identification signal transmission and electricity under above-mentioned pattern It can need to switch between information gathering, topological link information is uploaded and result in delay, if low-voltage distribution network platform region topology chain The unchanged state that is in is connect, the topological state experience of bimodulus collector collection is transferred to topology automatic identification device compared with long delay successively In power distribution network topological smart identification main website, but if the link data that bimodulus collector collects to reflect taiwan area topology different Often change, it would be desirable that report the transmission of power distribution network topological smart identification main website to upload in time this change in topology and (identify and logical Letter is coordinated).
A kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology of the present invention, is realized to low It is press-fitted the intelligence automatic detection of power network and the automatic amendment of geographical topology and logical topology chart, this technological means is matched somebody with somebody in low pressure Introduced on the basis of network carrier by identification generator and supporting intelligence in concentrator and topology automatic identification device The topological automatic identification system that ammeter signal receiver is formed, topology automatic identification device know the multichannel based on wave distortion Bimodulus collector of the level signal along low-voltage network line transmission to intelligent electric meter end and original topological link relation table Information Number It is compared according to (also referred to as table archives), while substitutes original topological link relation table Information Number with new topological link relation table data According to, and new topological link relation table data are stored in bimodulus collector, sending poll in topology automatic identification device summons During instruction, being distributed in bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter will most newly-established topological link Relation table data carry out being uploaded to topology automatic identification device, and topology automatic identification device will most newly-established topological link relation Table data upload to power distribution network topological smart by GPRS radio channels or 4G radio channels and identify main website, power distribution network topological smart Most newly-established topological link relation table data are converted to low-voltage network geographical topology figure and logical topology chart by identification main website And the original geographical topology figure of taiwan area and taiwan area logical topology chart are updated, and record topology status displacement event.
A kind of low-voltage distribution network topological automatic identification system based on the work frequency carrier communication technology, including be installed in low pressure and match somebody with somebody Have beside net platform region transformer concentrator and topology automatic identification device, be distributed on low-voltage distribution network taiwan area intelligent electric meter it is built-in or It is outer to be equipped with bimodulus collector and identify main website positioned at the power distribution network topological smart of power marketing center or electric power inspection department;Concentrate It is connected between device and topology automatic identification device by 485 circuits, the internal or external bimodulus collector of intelligent electric meter passes through Low-voltage distribution network circuit is connected with topology automatic identification device, and the internal or external bimodulus collector of intelligent electric meter generates topological chain Relation table (also referred to as table archives), concentrator and topology automatic identification device is connect with power distribution network topological smart identification main website to pass through GPRS radio channels or 4G radio channels are connected.
It is described be distributed in it is internal or external on low-voltage distribution network taiwan area intelligent electric meter have a bimodulus collector, the intelligent electric meter point For single-phase electric meter and 485 ammeters, the single-phase electric meter is built-in with bimodulus collector, and ammeter can not be bound by which solving identification device The problem of, 485 ammeters are equipped with bimodulus collector outside.No matter how intelligent electric meter wiring changes, and automatic recognition system can be in nothing Topological link relation is accurately generated and uploads to power distribution network by topology automatic identification device radio channel by people in the case of participating in Topological smart identifies main website, and topological link relation is converted to low-voltage network geographical topology by power distribution network topological smart identification main website Figure and logical topology chart.
The bimodulus collector is divided into the receiving module for receiving topological identification signal, narrow-band high-speed power line carrier communication mould Block and central processing module, receive topological identification signal receiving module and narrow-band high-speed Power Line Carrier Communication Module respectively with Central processing module electrically connects, and the receiving module for receiving topological identification signal is used for the letter for receiving the transmission of topology automatic identification device Number, narrow-band high-speed Power Line Carrier Communication Module is used for data after gathering intelligent electric meter data and central processing module processing and all passed It is defeated by topology automatic identification device.
The low-voltage distribution network taiwan area transformer and concentrator and topology automatic identification device are all one-to-one relationships, i.e., low A concentrator and topology automatic identification device are installed beside press-fitting net platform region transformer.
The topology automatic identification device includes identification generator, the Three Phase Carrier Based for receiving topological link data Module and the main control unit for controlling topology automatic identification process and transmission uplink information, control topology automatic identification process Contain GPRS communication driving interface units with the main control unit of transmission uplink information.
In terms of performance indications in method or system in the present invention, above topology automatic identification equipment sends multichannel and opened up The pattern of identification signal is flutterred, mainly considers identification signal reception device small volume, can be merged with carrier communication module turns into Bimodulus collector, while meet the pattern requirement of national grid intelligent electric meter.But the cost paid is bimodulus collector On identification signal receiving unit can not send signal, topological recognition result can only be uploaded by carrier channel.
Topology automatic identification device or concentrator in the present invention pass through low-voltage distribution network circuit (220V circuits and 485 circuits) To be distributed on low-voltage distribution network taiwan area intelligent electric meter it is internal or external have bimodulus collector send the multichannel based on wave distortion open up Identification signal is flutterred, and wherein low-voltage distribution network circuit is that distribution extension, that is, set in cable channel together is interspersed in cable channel It is equipped with low-voltage distribution network circuit.
The present invention can be become the topological structure monitored by not needing the automatic identification technology of manpower intervention in summary Change and upload in real time, shorten the response time of low-voltage distribution network topology status change, the low-voltage distribution for grasping electric power inspection department Net topology state and scene are completely the same;The present invention can also converge the low-voltage distribution network topology status classification of change in whole city Always, the promptness of O&M and inspection repairing is greatly improved, while it is more accurate to calculate the line loss of low-voltage distribution network, three-phase equilibrium, it is right Power distribution network scheduling, economical operation and raising electric power enterprise economic benefit play an important role.
Brief description of the drawings
Fig. 1 is the system structure diagram of the present invention;
Fig. 2 is topology automatic identification schematic device of the present invention;
Fig. 3 is bimodulus collector schematic diagram of the present invention.
Embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, and make the present invention above-mentioned mesh , feature and advantage can be more obvious understandable, the present invention is made with reference to embodiment and embodiment accompanying drawing further detailed Explanation.
A kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology, comprises the following steps:
(1) installation of equipment, a concentrator and a topology are installed beside each transformer of low-voltage distribution network taiwan area Automatic identification equipment, it is connected between concentrator and topology automatic identification device by 485 circuits, is being distributed in low-voltage distribution network platform It is internal or external on area's intelligent electric meter to have bimodulus collector, distribution is being installed positioned at power marketing center or electric power inspection department Net topology Intelligent Recognition main website;
(2) identification process, topology automatic identification device or concentrator pass through low-voltage distribution network circuit (220V circuits and 485 lines Road) to be distributed on low-voltage distribution network taiwan area intelligent electric meter it is internal or external have bimodulus collector send the multichannel based on wave distortion Topological identification signal (becomes and the identification signal of phase sequence information with taiwan area platform, which ammeter belongs to that the platform of taiwan area becomes which is detected Phase sequence), in order to adapt to low-voltage network circuit complex distribution, the more situation of all kinds of electrical equipment interference, multichannel topology identification letter Number special distorted waveform of use transmits on distribution network line, and the identification signal frequency is low, and with preferable anti-interference energy Power, transmission range is more than 2000m, it is not necessary in taiwan area separately laying-out, the multichannel topology identification signal based on wave distortion By area code, taiwan area coding, platform becomes mark and phase sequence identification information forms, and multichannel topology identification signal is meant that by low pressure The affiliated city in distributing net platform region, the numbering of low-voltage platform area, distribution transformer (platform change) numbering and the line phase-sequence detection group of low-voltage network Into information, be distributed in the GPS that internal or external bimodulus collector on low-voltage distribution network taiwan area intelligent electric meter reads intelligent electric meter The end topoligical node information data that information, terminal iidentification coding, geocoding and address code character synthesis ammeter and platform become, passes through End topoligical node information data forms original topological link relation table information data (also referred to as original table shelves of every intelligent electric meter Case), and simultaneously in pre-existing bimodulus collector, be distributed in bimodulus internal or external on low-voltage distribution network taiwan area intelligent electric meter and adopt Storage generates new topological link relation table data (also referred to as new table archives) after receiving topological identification signal, and the bimodulus collector will Original topological link relation table information data then generates topological shape compared with new topological link relation table data, if abnormal State conjugates event, topology status displacement event package contain affiliated platform before intelligent electric meter, change become, after change affiliated platform become and The time of change in topology identification, while substitute original topological link relation table information data with new topological link relation table data, And new topological link relation table data are stored in bimodulus collector, sending poll in topology automatic identification device summons instruction When, being distributed in bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter will most newly-established topological link relation Table data carry out being uploaded to topology automatic identification device, and topology automatic identification device will most newly-established topological link relation table number Main website, the identification of power distribution network topological smart are identified according to power distribution network topological smart is uploaded to by GPRS radio channels or 4G radio channels Most newly-established topological link relation table data are converted to low-voltage network geographical topology figure and logical topology chart and more by main website The new original geographical topology figure of taiwan area and taiwan area logical topology chart, and record topology status displacement event.Automatic identification starts Including:Timing identifies that topology automatic identification device is according to the time of setting, start by set date automatic identification process;Random identification, Power distribution network topological smart, which identifies main website or sends out to start with hand-held mobile terminal at taiwan area scene, identifies that instruction gives topology automatic knowledge Other device, start automatic identification process;Anomalous identification, topology automatic identification device receive the multinomial power failure of brown-outs or the overall situation After event, a power failure item of the taiwan area is regarded as in designated time interval, and determine to start by topology automatic identification device Automatic identification process.
Above topology automatic identification equipment sends multichannel topology identification signal in the present invention, is required to electric energy acquisition collection every time Coordination between middle device, electric energy centralized meter-reading system copy and accept topological chain using the meter reading process and topology automatic identification device of carrier communication Connect the process of information can not carry out simultaneously (i.e. centralized meter-reading system meter reading when automatic recognition system can not work, automatic recognition system work Centralized meter-reading system is asked to be stopped when making, the acquiring electric energy information of intelligent electric meter and the transmission of topological identification signal pass through concentrator Between coordination), topological identification signal (the topological identification signal each several part description:The affiliated city of low-voltage distribution network taiwan area borrows Communicate area code;Low-voltage platform area numbering has electric power asset administrative department to give, and distribution transformer numbering is power equipment numbering or platform Serial number in area, low-voltage network phase sequence be three-phase and four-line voltage phase sequence numbering) and carrier communication adhere to different frequency bands, Er Qieshi separately Level signal is operated in the time slot of carrier communication, determines to send the identification signal phase in topology automatic identification device or concentrator Between, electric energy acquisition information can not be transmitted on low-voltage distribution network circuit, therefore topological identification signal transmission and electricity under above-mentioned pattern It can need to switch between information gathering, topological link information is uploaded and result in delay, if low-voltage distribution network platform region topology chain The unchanged state that is in is connect, the topological state experience of bimodulus collector collection is transferred to topology automatic identification device compared with long delay successively In power distribution network topological smart identification main website, but if the link data that bimodulus collector collects to reflect taiwan area topology different Often change, it would be desirable that report the transmission of power distribution network topological smart identification main website to upload in time this change in topology and (identify and logical Letter is coordinated).
A kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology of the present invention, is realized to low It is press-fitted the intelligence automatic detection of power network and the automatic amendment of geographical topology and logical topology chart, this technological means is matched somebody with somebody in low pressure Introduced on the basis of network carrier by identification generator and supporting intelligence in concentrator and topology automatic identification device The topological automatic identification system that ammeter signal receiver is formed, topology automatic identification device know the multichannel based on wave distortion Bimodulus collector new table archives of the level signal along low-voltage network line transmission to intelligent electric meter end are compared with original table archives Compared with, while substitute original table archives with new table archives, and by new table archives preservation in bimodulus collector, in topology automatic identification When device transmission poll summons instruction, being distributed in bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter will most Newly-established topological link relation table data carry out being uploaded to topology automatic identification device, and topology automatic identification device will be most newly-built Vertical topological link relation table data upload to power distribution network topological smart identification master by GPRS radio channels or 4G radio channels Stand, most newly-established topological link relation table data are converted to low-voltage distribution Network Geographical and opened up by power distribution network topological smart identification main website Flutter figure and logical topology chart and update the original geographical topology figure of taiwan area and taiwan area logical topology chart, and record topology status becomes Position event.
As shown in Figure 1, Figure 2 and Figure 3, a kind of low-voltage distribution network topology automatic identification system based on the work frequency carrier communication technology Unite, including be installed in low-voltage distribution network taiwan area transformer side have concentrator 1 and topology automatic identification device 2, be distributed in low pressure It is internal or external on distributing net platform region intelligent electric meter 3 to have bimodulus collector 31 and positioned at power marketing center or electric power inspection department Power distribution network topological smart identifies main website 4, and described be distributed in internal or external on low-voltage distribution network taiwan area intelligent electric meter 3 has bimodulus collection Device 31, the intelligent electric meter 3 divides is built-in with bimodulus collector 31 for the ammeter 33 of single-phase electric meter 32 and 485, the single-phase electric meter 32, Which solve the problem of identification device can not bind ammeter, be equipped with bimodulus collector 31 outside 485 ammeters 33, no matter intelligent electric meter 3 How wiring changes, and topological link relation can be accurately generated and pass through topology by automatic recognition system in the case of unmanned participate in The radio channel of automatic identification equipment 2 uploads to power distribution network topological smart identification main website 4, and power distribution network topological smart identification main website 4 will Topological link relation is converted to low-voltage network geographical topology figure and logical topology chart, and the bimodulus collector 31 divides to be opened up for reception Receiving module 311, narrow-band high-speed Power Line Carrier Communication Module 312 and the central processing module 313 of identification signal are flutterred, reception is opened up Receiving module 311 and the narrow-band high-speed Power Line Carrier Communication Module 312 for flutterring identification signal are electric with central processing module 313 respectively Connection, the receiving module 311 for receiving topological identification signal are used for the signal for receiving the transmission of topology automatic identification device 2, and arrowband is high Fast Power Line Carrier Communication Module 312 is used for data after gathering the data of intelligent electric meter 3 and the processing of central processing module 313 and all transmitted To topology automatic identification device 2, the topology automatic identification device 2 includes identification generator 21, for receiving topological chain Connect the Three Phase Carrier Based module 22 of data and for controlling topology automatic identification process and transmitting the main control unit 23 of uplink information, Control topology automatic identification process and transmit the main control unit 23 of uplink information containing GPRS communication driving interfaces unit 231;Collection It is connected between middle device 1 and topology automatic identification device 2 by 485 circuits, the internal or external bimodulus collector of intelligent electric meter 3 31 are connected by low-voltage distribution network circuit with topology automatic identification device 2, the internal or external bimodulus collector 31 of intelligent electric meter 3 Topological link relation table, concentrator 1 and topology automatic identification device 2 is generated with power distribution network topological smart identification main website 4 to pass through GPRS radio channels or 4G radio channels are connected.Heretofore described low-voltage distribution network taiwan area transformer and concentrator 1 and topology Automatic identification equipment 2 is all one-to-one relationship, i.e., a concentrator 1 and topology are provided with beside low-voltage distribution network taiwan area transformer certainly Dynamic identification device 2.Being installed in the present invention beside low-voltage distribution network taiwan area transformer has concentrator 1 and topology automatic identification device 2 more than one, its quantity is multiple, while described be distributed in internal or external on low-voltage distribution network taiwan area intelligent electric meter 3 has bimodulus Collector 31, the intelligent electric meter 3 divide for the ammeter 33 of single-phase electric meter 32 and 485, the quantity of single-phase electric meter 32 also its point of more than one For single-phase electric meter A, single-phase electric meter B, single-phase electric meter C, single-phase electric meter D, single-phase electric meter E, single-phase electric meter F etc., each list Phase ammeter 32 is built-in with bimodulus collector 31, which solves the problem of identification device can not bind ammeter, and 485 ammeters 33 are also not only One its be divided into 485 ammeter G, 485 ammeter H, 485 ammeter I etc., be equipped with bimodulus collector 31 outside each 485 ammeter, bimodulus is adopted Storage 31 is connected by low-voltage distribution network circuit with topology automatic identification device 2 and concentrator 1, concentrator 1 and the automatic knowledge of topology Other device 2 is connected with power distribution network topological smart identification main website 4 by GPRS radio channels or 4G radio channels.
In terms of performance indications in method or system in the present invention, above topology automatic identification equipment sends multichannel and opened up The pattern of identification signal is flutterred, mainly considers identification signal reception device small volume, can be merged with carrier communication module turns into Bimodulus collector, while meet the pattern requirement of national grid intelligent electric meter.But the cost paid is bimodulus collector On identification signal receiving unit can not send signal, topological recognition result can only be uploaded by carrier channel.
Topology automatic identification device or concentrator in the present invention pass through low-voltage distribution network circuit (220V circuits and 485 circuits) To be distributed on low-voltage distribution network taiwan area intelligent electric meter it is internal or external have bimodulus collector send the multichannel based on wave distortion open up Identification signal is flutterred, and wherein low-voltage distribution network circuit is that distribution extension, that is, set in cable channel together is interspersed in cable channel It is equipped with low-voltage distribution network circuit.
The present invention can be become the topological structure monitored by not needing the automatic identification technology of manpower intervention in summary Change and upload in real time, shorten the response time of low-voltage distribution network topology status change, the low-voltage distribution for grasping electric power inspection department Net topology state and scene are completely the same;The present invention can also converge the low-voltage distribution network topology status classification of change in whole city Always, the promptness of O&M and inspection repairing is greatly improved, while it is more accurate to calculate the line loss of low-voltage distribution network, three-phase equilibrium, it is right Power distribution network scheduling, economical operation and raising electric power enterprise economic benefit play an important role.

Claims (10)

  1. A kind of 1. low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology, it is characterised in that:Including as follows Step:
    (1) installation of equipment, is provided with a concentrator beside each transformer of low-voltage distribution network taiwan area and a topology is automatic Identification device, it is connected between concentrator and topology automatic identification device by 485 circuits, is being distributed in low-voltage distribution network taiwan area intelligence It is internal or external on energy ammeter to have bimodulus collector, opened up being provided with power distribution network positioned at power marketing center or electric power inspection department Flutter Intelligent Recognition main website;
    (2) identification process, topology automatic identification device or concentrator are by low-voltage distribution network circuit to being distributed in low-voltage distribution network taiwan area It is internal or external on intelligent electric meter to there is bimodulus collector to send the multichannel topology identification signal based on wave distortion, it is distributed in low pressure Internal or external bimodulus collector reads the GPS information of intelligent electric meter on the intelligent electric meter of distributing net platform region, terminal iidentification encodes, The end topoligical node information data that location encodes and address code character synthesis ammeter and platform become, passes through end topoligical node information data Original topological link relation table information data of every intelligent electric meter is formed, and simultaneously in pre-existing bimodulus collector, distribution New topological chain is generated after bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter receives topological identification signal Connect relation table data, the bimodulus collector is by original topological link relation table information data and new topological link relation table data Compare, then generate topology status displacement event if abnormal, while substitute original open up with new topological link relation table data Linking relationship table information data is flutterred, and new topological link relation table data are stored in bimodulus collector, in topological automatic knowledge When other device transmission poll summons instruction, being distributed in bimodulus collector internal or external on low-voltage distribution network taiwan area intelligent electric meter will Most newly-established topological link relation table data carry out being uploaded to topology automatic identification device, and topology automatic identification device will be newest The topological link relation table data of foundation upload to power distribution network topological smart by GPRS radio channels or 4G radio channels and identified Most newly-established topological link relation table data are converted to low-voltage distribution Network Geographical by main website, power distribution network topological smart identification main website Topological diagram and logical topology chart simultaneously update the original geographical topology figure of taiwan area and taiwan area logical topology chart, and record topology status Displacement event.
  2. 2. a kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology as claimed in claim 1, it is special Sign is:The multichannel topology identification signal based on wave distortion is become by area code, taiwan area coding, platform in the step (2) Mark and phase sequence identification information composition.
  3. 3. a kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology as claimed in claim 1, it is special Sign is:Automatic identification starts and included in the step (2):
    Timing identifies that topology automatic identification device is according to the time of setting, start by set date automatic identification process;
    Random identification, identify main website in power distribution network topological smart or refer in the hair startup identification of taiwan area scene hand-held mobile terminal Make and give topology automatic identification device, start automatic identification process;
    Anomalous identification, after automatic identification equipment receives brown-outs or the multinomial power-off event of the overall situation, in designated time interval A power failure item of the taiwan area is regarded as, and startup automatic identification process is determined by topology automatic identification device.
  4. 4. a kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology as claimed in claim 1, it is special Sign is:Step (2) the multichannel topology identification signal is meant that by the volume in the affiliated city of low-voltage distribution network taiwan area, low-voltage platform area Number, distribution transformer numbering and low-voltage network line phase-sequence detection composition information.
  5. 5. a kind of low-voltage distribution network topology automatic identification method based on the work frequency carrier communication technology as claimed in claim 1, it is special Sign is:Affiliated platform becomes, after change before the displacement event package of topology status described in the step (2) contains intelligent electric meter, change Affiliated platform becomes and the time of change in topology identification.
  6. 6. according to a kind of low-voltage distribution network topology automatic identification based on the work frequency carrier communication technology of any one of claim 1 to 5 System, it is characterised in that:Including be installed in beside low-voltage distribution network taiwan area transformer have concentrator and topology automatic identification device, Being distributed in internal or external on low-voltage distribution network taiwan area intelligent electric meter have bimodulus collector and is transported positioned at power marketing center or electric power The power distribution network topological smart identification main website of inspection department;It is connected between concentrator and topology automatic identification device by 485 circuits, The internal or external bimodulus collector of intelligent electric meter is connected by low-voltage distribution network circuit with topology automatic identification device, intelligence electricity The internal or external bimodulus collector generation topological link relation table of table, concentrator and topology automatic identification device are opened up with power distribution network Intelligent Recognition main website is flutterred by GPRS radio channels or 4G radio channels to be connected.
  7. 7. a kind of low-voltage distribution network topological automatic identification system based on the work frequency carrier communication technology as claimed in claim 6, it is special Sign is:It is described be distributed in it is internal or external on low-voltage distribution network taiwan area intelligent electric meter have a bimodulus collector, the intelligent electric meter point For single-phase electric meter and 485 ammeters, the single-phase electric meter is built-in with bimodulus collector, bimodulus collector is equipped with outside 485 ammeters.
  8. 8. a kind of low-voltage distribution network topological automatic identification system based on the work frequency carrier communication technology as claimed in claim 6, it is special Sign is:The bimodulus collector is divided into the receiving module for receiving topological identification signal, narrow-band high-speed power line carrier communication mould Block and central processing module, receive topological identification signal receiving module and narrow-band high-speed Power Line Carrier Communication Module respectively with Central processing module electrically connects, and the receiving module for receiving topological identification signal is used for the letter for receiving the transmission of topology automatic identification device Number, narrow-band high-speed Power Line Carrier Communication Module is used for data after gathering intelligent electric meter data and central processing module processing and all passed It is defeated by topology automatic identification device.
  9. 9. a kind of low-voltage distribution network topological automatic identification system based on the work frequency carrier communication technology as claimed in claim 6, it is special Sign is:The low-voltage distribution network taiwan area transformer and concentrator and topology automatic identification device are all one-to-one relationships, i.e., low A concentrator and topology automatic identification device are installed beside press-fitting net platform region transformer.
  10. 10. a kind of low-voltage distribution network topological automatic identification system based on the work frequency carrier communication technology as claimed in claim 6, it is special Sign is:The topology automatic identification device includes identification generator, the Three Phase Carrier Based for receiving topological link data Module and the main control unit for controlling topology automatic identification process and transmission uplink information.
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CN108337332A (en) * 2018-02-02 2018-07-27 浙江华云信息科技有限公司 A kind of Intelligent platform zone recognition methods and Intelligent platform zone system based on radio mesh network
CN108961713A (en) * 2018-06-28 2018-12-07 国网天津市电力公司电力科学研究院 A kind of intelligent centralized meter-reading system for low-voltage platform area
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CN110867956A (en) * 2019-10-17 2020-03-06 珠海许继芝电网自动化有限公司 Topology automatic identification system and method based on intelligent platform area
CN110994789A (en) * 2019-11-26 2020-04-10 山东电亮亮信息科技有限公司 Low-voltage distribution network topological relation on-line identification and monitoring method
CN111462470A (en) * 2020-05-19 2020-07-28 广州穗华能源科技有限公司 Low-voltage distribution area topology identification method based on power line carrier attenuation characteristics

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