CN106911416B - Intelligent distribution network failure detector based on Packet Transport Network and wireless network - Google Patents

Intelligent distribution network failure detector based on Packet Transport Network and wireless network Download PDF

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Publication number
CN106911416B
CN106911416B CN201710152852.6A CN201710152852A CN106911416B CN 106911416 B CN106911416 B CN 106911416B CN 201710152852 A CN201710152852 A CN 201710152852A CN 106911416 B CN106911416 B CN 106911416B
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China
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intelligent distribution
distribution network
differential protection
module
failure detector
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CN201710152852.6A
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CN106911416A (en
Inventor
金鑫
黄维芳
文安
魏承志
张国翊
连伟华
朱海龙
何锡祺
徐骏
许健
王家华
乔峰
吴恒
赵春雷
李继晟
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Beijing Sifang Automation Co Ltd
China Southern Power Grid Co Ltd
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Beijing Sifang Automation Co Ltd
China Southern Power Grid Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • 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
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing

Abstract

Intelligent distribution network failure detector based on Packet Transport Network and wireless network, including management module, acquisition module, differential protection module, measurement control module and information exchange and clock synchronization terminal.Differential protection module executes distributed differential protection logic function for receiving SV, goose data, and CAN network datas, internal Ethernet data are interacted with management module；It includes clock synchronization unit, information acquisition unit and control unit to measure control module; it realizes time adjustment function, interact SV data and goose data with neighboring devices; interactive maintenance information is realized by the ini file that inner stipulation is brought based on internal bus with management module is received, passes through the internal two-way port mouthfuls of interaction data of 50M with differential protection module.Described device uses master-salve clock scheme, carries out coding transmission to the time, using the symmetry and Time delay measurement technology of network link, realizes that the frequency of master-salve clock, phase are synchronous with absolute time.

Description

Intelligent distribution network failure detector based on Packet Transport Network and wireless network
Technical field
The present invention relates to intelligent distribution network detection fields, specific to design the intelligent power distribution based on Packet Transport Network and wireless network Net failure detector.
Background technology
Traditional distribution network failure detection depends on distribution main website, and unified clock synchronization is carried out by distribution main website.But this Class mode reliability due to depending on unduly for main website is poor.The it is proposed of distributed differential protection can efficiently solve such ask Topic, but is still within technology and device conceptual phase, and clock synchronization synchronizes this technology between can not avoiding distributed differential gear Bottleneck.
And PTN (Packet Transport Network, Packet Transport Network) is by optical transport network framework, in IP operation A level is provided between bottom light-transmitting medium, it is transmitted for the sudden and statistic multiplexing of Packet Service flow It is required that and design, as core and support that multi-service provides using Packet Service, there is lower overall use cost (TCO), simultaneously Adhere to the traditional advantage of optical transport, including high availability and reliability, efficient bandwidth management mechanism and traffic engineering, easily OAM and webmaster, expansible, higher safety etc..In addition in application to distribution network, some distribution regions carry out fiber cable laying difficulty It is larger, it is that one kind efficiently solving method using 4G wireless telecommunications.But these technologies are not yet detected in distribution network failure and are distributed Formula differential protection direction is applied, and how to be effectively combined two kinds of communication interactive modes is also that a solution is efficiently distributed differential Protect a key technology of application problem.
Invention content
Main website transition is relied on to solve conventional electrical distribution net fault detect existing in the prior art, distributed differential protection The technical problems such as synchronous bottleneck, in consideration of it, the purpose of the present invention is：Based on the event of the intelligent distribution network of Packet Transport Network and wireless network Barrier detection device carries out coding transmission using master-salve clock scheme to the time, utilizes the symmetry and Time delay measurement of network link Technology realizes that the frequency of master-salve clock, phase are synchronous with absolute time, further realizes communication and protects relatively independent, nothing Line information exchange and fiber information interactive mode is spare each other or the distributed differential protection that is used in mixed way.
The present invention uses following technical scheme.
A kind of intelligent distribution network failure detector based on Packet Transport Network and wireless network, the intelligent distribution network failure Detection device include management module, acquisition module, differential protection module, measure control module, information exchange and clock synchronization terminal and Internal bus；It is characterized in that：
Management module, acquisition module, differential protection module, measurement control module and information exchange and clock synchronization terminal are all logical Internal bus is crossed to be attached.
Acquisition module is measured by the secondary access of practical electrical quantity corresponding to this intelligent distribution network failure detector The voltage and current information of actual circuit and the division information of switch, and management module is transferred to by internal bus, by management mould Block is distributed to differential protection module and measures control module；
Control module is measured to complete by information exchange and clock synchronization terminal and adjacent intelligent distribution network failure detector Data interaction and time adjustment function；
The division information for the voltage and current information and switch that differential protection module is measured according to acquisition module and measurement control It is poor that the data for the adjacent intelligent distribution network failure detector that molding block receives are carried out according to preset differential relaying algorithm Dynamic protection judges, including differential protection computing unit and definite value synchronism switching unit, realizes distributed differential protection function, and lead to The mode for crossing tripping regulation and control, by measuring control module output.
The present invention further comprises following preferred embodiment：
The measurement control module includes information acquisition unit, control unit and clock synchronization unit, and wherein control unit controls Information acquisition unit, clock synchronization unit use information interaction with clock synchronization terminal realize with adjacent intelligent distribution network failure detector into Row data interaction and time adjustment function；
Information exchange supports wireless network TD-LTE communications with clock synchronization terminal and fiber groupings transmission net PTN is supported to communicate work( Energy.
Information acquisition unit can be set three kinds of information interaction approach by the measurement control module：
Wherein, the interactive mode 1 indicate intelligent distribution network failure detector only receive fiber groupings transmission net PTN into Row information interacts, and data and synchronizing signal are obtained from PTN at this time；The interactive mode 2 indicates intelligent distribution network fault detect Device only receives wireless network TD-LTE and carries out information exchange, and data and synchronizing signal are obtained from wireless terminal accessing device at this time It takes；The interactive mode 3 indicates that intelligent distribution network failure detector carries out information exchange by PTN, TD-LTE mixed networking, Setting PTN priority is higher than TD-LTE at this time.
Intelligent distribution network failure detector default information acquiring unit interactively 1 carries out information exchange, is receiving Data with it is synchronous cannot meet the requirements when, automatically switch to interactive mode 2 operation；If data with it is synchronous still cannot meet want It asks, then it is assumed that data channel is abnormal, report and alarm；If current intelligent distribution network failure detector and adjacent intelligent distribution network Failure detector existing interactively 1, but have interactively 2 carry out information exchanges in the case of, then the intelligence is matched Electric network fault detection device is then switched to the operation of interactive mode 3.
The clock synchronization unit time uses IRIG-B synchronous protocols, and with IEEE1588V2 alternately synchronous protocols, leads to It crosses information exchange and uses 2pin RS422 twisted-pair feeder synchronous transfer media with clock synchronization terminal, realize optical fiber PTN communications, wireless TD- IEEE1588V2, IRIG-B time adjustment function provided respectively under LTE interactions, the time adjustment function is corresponding with the interactive mode, hands over Optical fiber IEEE1588V2 clock synchronization modes are used when mutual mode 1 and interactive mode 3, interactive mode 2 is carried using wireless TD-LTE For IRIG-B clock synchronization modes.
The differential protection module includes differential protection computing unit and definite value synchronism switching unit；The differential protection meter It calculates unit and differential protection judgement is carried out according to preset differential relaying algorithm, and by way of tripping, pass through survey Control module output is measured, realizes distributed differential protection function；
It changes when with net topology, the definite value synchronism switching unit of differential protection module with measurement control module by matching Close, receive and measure control module the topological arrangement information and definite value sent, on-line synchronous change run corresponding relaying configuration and Definite value parameter is synchronized with other intelligent distribution network failure detectors, according to topological arrangement information, is executed bus differential and is protected Shield and line differential protection；It is realized between two adjacent intelligent distribution network failure detectors by measuring control module The SV message interaction data of IEC61850 9-2 formats carry out line differential protection judgement.
The beneficial effects of the invention are as follows：
(1) PTN1588 high-precisions clock synchronization：Using master-salve clock scheme, coding transmission is carried out to the time, utilizes network link Symmetry and Time delay measurement technology, realize that the frequency of master-salve clock, phase are synchronous with absolute time.
(2) PTN and wireless synchronism switching：The generalization in PTN and wireless region is supported to use, terminal installation is realized fixed Automatic adaptation after value switching so that the versatility of device is stronger.
(3) relaying configuration switching is flexibly and and control function synchronous with clock synchronization is completely independent：The function of protection is realized and is risen Grade is more convenient.
Description of the drawings
Fig. 1 is intelligent distribution network failure detector structure diagram of the present invention；
Fig. 2 is constructing communication network figure；
Fig. 3 is the logic diagram of PTN and wireless synchronism switching.
Specific implementation mode
Following further describes the present invention with reference to the drawings.
The present invention provides the intelligent distribution network failure detector based on Packet Transport Network and wireless network, as shown in Figure 1, packet Include management module, acquisition module, differential protection module, observing and controlling control module and information exchange and clock synchronization terminal.Protection and clock synchronization Synchronous and control function is realized by the differential protection module and measurement control module of intelligent distributed protection terminal respectively.
Management module, acquisition module, differential protection module, measurement control module and information exchange and clock synchronization terminal are all logical Internal bus is crossed to be attached.
Acquisition module is measured by the secondary access of practical electrical quantity corresponding to this intelligent distribution network failure detector The voltage and current information of actual circuit and the division information of switch, and management module is transferred to by internal bus, by management mould Block is distributed to differential protection module and measures control module.
Control module is measured to complete by information exchange and clock synchronization terminal and adjacent intelligent distribution network failure detector Data interaction and time adjustment function；The measurement control module includes information acquisition unit, control unit and clock synchronization unit, wherein controlling Unit control information acquisition unit, the interaction of clock synchronization unit use information and clock synchronization terminal processed are realized and adjacent intelligent distribution network failure Detection device carries out data interaction and time adjustment function.
Information exchange supports wireless network TD-LTE communications with clock synchronization terminal and fiber groupings transmission net PTN is supported to communicate work( Energy.
Information acquisition unit can be set three kinds of information interaction approach by the measurement control module：
Wherein, the interactive mode 1 indicate intelligent distribution network failure detector only receive fiber groupings transmission net PTN into Row information interacts, and data and synchronizing signal are obtained from PTN at this time；The interactive mode 2 indicates intelligent distribution network fault detect Device only receives wireless network TD-LTE and carries out information exchange, and data and synchronizing signal are obtained from wireless terminal accessing device at this time It takes；The interactive mode 3 indicates that intelligent distribution network failure detector carries out information exchange by PTN, TD-LTE mixed networking, Setting PTN priority is higher than TD-LTE at this time.
Intelligent distribution network failure detector default information acquiring unit interactively 1 carries out information exchange, is receiving Data with it is synchronous cannot meet the requirements when, automatically switch to interactive mode 2 operation；If data with it is synchronous still cannot meet want It asks, then it is assumed that data channel is abnormal, report and alarm；If current intelligent distribution network failure detector and adjacent intelligent distribution network Failure detector existing interactively 1, but have interactively 2 carry out information exchanges in the case of, then the intelligence is matched Electric network fault detection device is then switched to the operation of interactive mode 3.
The clock synchronization unit time uses IRIG-B synchronous protocols, and with IEEE1588V2 alternately synchronous protocols, leads to It crosses information exchange and uses 2pin RS422 twisted-pair feeder synchronous transfer media with clock synchronization terminal, realize optical fiber PTN communications, wireless TD- IEEE1588V2, IRIG-B time adjustment function provided respectively under LTE interactions, the time adjustment function is corresponding with the interactive mode, hands over Optical fiber IEEE1588V2 clock synchronization modes are used when mutual mode 1 and interactive mode 3, interactive mode 2 is carried using wireless TD-LTE For IRIG-B clock synchronization modes.
The division information for the voltage and current information and switch that differential protection module is measured according to acquisition module and measurement control It is poor that the data for the adjacent intelligent distribution network failure detector that molding block receives are carried out according to preset differential relaying algorithm Dynamic protection judges, including differential protection computing unit and definite value synchronism switching unit, realizes distributed differential protection function, and lead to The mode for crossing tripping regulation and control, by measuring control module output.
Wherein, the differential protection module includes differential protection computing unit and definite value synchronism switching unit；It is described differential Computing unit is protected to carry out differential protection judgement according to preset differential relaying algorithm, and by way of tripping, By measuring control module output, distributed differential protection function is realized；It changes when with net topology, differential protection module Definite value synchronism switching unit receives the topological arrangement information and determine for measuring that control module is sent by coordinating with measurement control module Value, on-line synchronous change run corresponding relaying configuration and definite value parameter, are carried out with other intelligent distribution network failure detectors It is synchronous, according to topological arrangement information, execute bus differential protecting and line differential protection；Two adjacent intelligent distribution network failures Realize that the SV message interaction data of IEC61850 9-2 formats carry out Line Differential guarantor by measuring control module between detection device Shield judges.
In the specific embodiment of the application, the differential protection module and measurement control module are DSP ADSP21469 chips, differential protection module executes distributed differential protection logic function for receiving SV, goose data, with pipe Manage module interaction CAN network datas, internal Ethernet data；
It includes information acquisition unit, control unit and clock synchronization unit to measure control module, realizes time adjustment function and adjacent dress Interactive SV data and goose data are set, the ini file brought by inner stipulation based on internal bus with reception management module It realizes interactive maintenance information, passes through the internal two-way port mouthfuls of interaction data of 50M with differential protection module.Described device is using master From clock scheme, coding transmission is carried out to the time, using the symmetry and Time delay measurement technology of network link, realizes master-salve clock Frequency, phase it is synchronous with absolute time.
Further, differential protection module carries differential relaying algorithm generally used now, is only increased in differential definite value Definite value synchronism switching unit, changes when with net topology, and differential protection module with communication module by coordinating basis to receive Topological arrangement information and definite value, the corresponding configuration of on-line synchronous change operation and definite value parameter, with other intelligent distribution network failures Detection device synchronizes, and according to topological arrangement information, executes bus differential protecting and line differential protection module.Adjacent two The SV message interaction numbers of IEC61850 9-2 formats are realized between platform intelligent distribution network failure detector by measuring control module According to progress line differential protection judgement.
Further, the information acquisition unit for measuring control module passes through wireless with information exchange and clock synchronization terminal Terminal and the cooperation of intelligent acess terminal are accessed, and carries out corresponding constructing communication network as shown in Figure 2, realizes support optical fiber respectively PTN is communicated and is supported wireless TD-LTE, and has the function of synchronism switching, and switching mode is as follows：
The measurement control module of intelligent distribution network failure detector is set as three kinds of information interaction approach：Interactive mode 1, interactive mode 2 and interactive mode 3.The interactive mode 1 indicates that device only receives optical fiber PTN and carries out information exchange, counts at this time It is obtained from PTN according to synchronous；The interactive mode 2 indicates that device only receives wireless TD-LTE and carries out information exchange, counts at this time It is obtained from CPE according to synchronous；The interactive mode 3 indicate device can PTN, TD-LTE mixed networking carry out information exchange, this When setting PTN priority be higher than TD-LTE.
Intelligent distribution network failure detector acquiescence interactively 1 carry out information exchange, the data received with it is synchronous When cannot meet the requirements, the operation of interactive mode 2 is automatically switched to；If data still cannot be met the requirements with synchronous, then it is assumed that number According to channel abnormal, report and alarm；System interception data and synchronizing channel are automatically set to corresponding according to priority and channel case Interactive mode work.
Further, clock synchronization module time synchronous protocol uses IRIG-B, IEEE1588V2 optionally, to synchronize Transmission medium uses 2pin RS422 twisted-pair feeders.Realize that optical fiber PTN communications, wireless TD-LTE provide respectively under interacting IEEE1588V2, IRIG-B time adjustment function, the function is corresponding with the interactive mode, and when interactive mode 1 and interactive mode 3 uses Optical fiber IEEE1588V2 clock synchronization modes, interactive mode 2 are to be provided which IRIG-B clock synchronization modes using wireless TD-LTE.
Further, management module is responsible for coordinating and managing module and measures control module data exchange, coordinates distribution main website Data Format Transform between management module.And the update of various events differential protection operating status when occurring.Manage mould Block is interacted with control module is measured by internal bus, traffic rate 200Kbps.Following basic function is provided as shown in Figure 3：
A) operation measure the common definite value of control module, open into, output, the data such as analog quantity, recording.
B) it has access to and measures control module software version.
C) it throws and moves back differential protection module differential protection function (it is dynamic to be mainly used for topological structure for rather than single differential function Latch-up protection when state updates, prevents false protection).
D) handover network communication mode function (being mainly used for PTN and the switching of wireless double nets or the switching of active and standby net).
E) the * .ini file transmitting functions that control module uses are measured.
Further, acquisition module by the secondary access of practical electrical quantity measure actual circuit voltage and current information and The division information of switch, and management module is transferred to by internal bus, being distributed to differential protection module by management module carries out Differential protection judges, is distributed to the data forwarding and interaction for measuring control module progress with other devices.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (6)

1. a kind of intelligent distribution network failure detector based on Packet Transport Network and wireless network, the intelligent distribution network failure inspection Device is surveyed to include management module, acquisition module, differential protection module, measure control module, information exchange and clock synchronization terminal and interior Portion's bus；It is characterized in that：
Management module, differential protection module, measures control module and information exchange and clock synchronization terminal all by interior at acquisition module Portion's bus is attached；
Acquisition module measures the reality corresponding to this intelligent distribution network failure detector by the secondary access of practical electrical quantity The voltage and current information of circuit and the division information of switch, and management module is transferred to by internal bus, by management module point It is sent to differential protection module and measures control module；
Measure data of the control module by information exchange and clock synchronization terminal completion and adjacent intelligent distribution network failure detector Interaction and time adjustment function；
The division information and measurement control mould for the voltage and current information and switch that differential protection module is measured according to acquisition module The data for the adjacent intelligent distribution network failure detector that block receives carry out differential guarantor according to preset differential relaying algorithm Shield judges, including differential protection computing unit and definite value synchronism switching unit, realizes distributed differential protection function, and pass through jump The mode of lock regulation and control, by measuring control module output.
2. the intelligent distribution network failure detector according to claim 1 based on Packet Transport Network and wireless network, special Sign is：
The measurement control module includes information acquisition unit, control unit and clock synchronization unit, and wherein control unit controls information Acquiring unit, the interaction of clock synchronization unit use information are realized with adjacent intelligent distribution network failure detector with clock synchronization terminal into line number According to interaction and time adjustment function；
Information exchange supports wireless network TD-LTE communications with clock synchronization terminal and supports fiber groupings transmission net PTN communication functions.
3. the intelligent distribution network failure detector according to claim 2 based on Packet Transport Network and wireless network, special Sign is：
Information acquisition unit can be set three kinds of information interaction approach by the measurement control module：
Wherein, interactive mode 1 indicates that intelligent distribution network failure detector only receives fiber groupings transmission net PTN and handed over into row information Mutually, data and synchronizing signal are obtained from PTN at this time；Interactive mode 2 indicates that intelligent distribution network failure detector only receives nothing Gauze TD-LTE carries out information exchange, and data and synchronizing signal are obtained from wireless terminal accessing device at this time；3 table of interactive mode Show that intelligent distribution network failure detector carries out information exchange by PTN, TD-LTE mixed networking, PTN priority is set at this time Higher than TD-LTE.
4. the intelligent distribution network failure detector according to claim 3 based on Packet Transport Network and wireless network, special Sign is：
Intelligent distribution network failure detector default information acquiring unit interactively 1 carries out information exchange, in the number received According to it is synchronous cannot meet the requirements when, automatically switch to interactive mode 2 operation；If data still cannot be met the requirements with synchronous, Then think data channel exception, report and alarm；If current intelligent distribution network failure detector and adjacent intelligent distribution network event Hinder detection device existing interactively 1, but have interactively 2 carry out information exchanges in the case of, then the intelligent power distribution Net failure detector is then switched to the operation of interactive mode 3.
5. the intelligent distribution network failure detector according to claim 4 based on Packet Transport Network and wireless network, special Sign is：
The clock synchronization unit time uses IRIG-B synchronous protocols, and with IEEE1588V2 alternately synchronous protocols, passes through letter Breath interaction uses 2pin RS422 twisted-pair feeder synchronous transfer media with clock synchronization terminal, realizes that optical fiber PTN communications, wireless TD-LTE are handed over IEEE1588V2, IRIG-B time adjustment function provided respectively under mutually, the time adjustment function is corresponding with the interactive mode, interactive mode 1 and optical fiber IEEE1588V2 clock synchronization modes are used when interactive mode 3, interactive mode 2 is to be provided which IRIG- using wireless TD-LTE B clock synchronization modes.
6. the intelligent distribution network failure detector according to claim 1 based on Packet Transport Network and wireless network, special Sign is：
The differential protection module includes differential protection computing unit and definite value synchronism switching unit；The differential protection calculates single Member carries out differential protection judgement according to preset differential relaying algorithm, and by way of tripping, and is controlled by measuring Molding block exports, and realizes distributed differential protection function；
Change when with net topology, the definite value synchronism switching unit of differential protection module by with measure control module cooperation, It receives and measures topological arrangement information and definite value that control module is sent, on-line synchronous change runs corresponding relaying configuration and definite value Parameter is synchronized with other intelligent distribution network failure detectors, according to topological arrangement information, execute bus differential protecting and Line differential protection；Between two adjacent intelligent distribution network failure detectors IEC61850 is realized by measuring control module The SV message interaction data of 9-2 formats carry out line differential protection judgement.
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CN111478295B (en) * 2020-04-01 2022-06-14 南京国电南自电网自动化有限公司 Data synchronization method and system suitable for wireless line differential protection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441959A (en) * 2013-09-12 2013-12-11 南京鸿骏信息技术有限公司 Real-time multi-business data multiplex communication network of electric power system
CN104363152A (en) * 2014-10-31 2015-02-18 国网重庆市电力公司电力科学研究院 Hybrid networking system for electrical power private communication network
EP2908485A1 (en) * 2014-02-18 2015-08-19 Alcatel Lucent Network device and method for packet flow classification
CN104901275A (en) * 2015-06-02 2015-09-09 广西电网有限责任公司 Wide area protection control system based on PTN communication technology and IEEE1588 network time setting protocol
CN105140894A (en) * 2015-08-07 2015-12-09 许继电气股份有限公司 Phase difference principle based power distribution network differential protection method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9271057B2 (en) * 2010-02-22 2016-02-23 Qualcomm Incorporated Methods and apparatus for time synchronization and measurement of power distribution systems
CN202385092U (en) * 2011-12-15 2012-08-15 河南省电力勘测设计院 Power communication platform integrating packet transport network (PTN) and Ethernet passive optical network (EPON)
CN102611086B (en) * 2012-03-27 2015-01-07 许继电气股份有限公司 Centralized protection system and method for region distribution network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441959A (en) * 2013-09-12 2013-12-11 南京鸿骏信息技术有限公司 Real-time multi-business data multiplex communication network of electric power system
EP2908485A1 (en) * 2014-02-18 2015-08-19 Alcatel Lucent Network device and method for packet flow classification
CN104363152A (en) * 2014-10-31 2015-02-18 国网重庆市电力公司电力科学研究院 Hybrid networking system for electrical power private communication network
CN104901275A (en) * 2015-06-02 2015-09-09 广西电网有限责任公司 Wide area protection control system based on PTN communication technology and IEEE1588 network time setting protocol
CN105140894A (en) * 2015-08-07 2015-12-09 许继电气股份有限公司 Phase difference principle based power distribution network differential protection method

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