CN105357029B - The determination method of intelligent substation communication link exception based on whole station information - Google Patents
The determination method of intelligent substation communication link exception based on whole station information Download PDFInfo
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- CN105357029B CN105357029B CN201510630605.3A CN201510630605A CN105357029B CN 105357029 B CN105357029 B CN 105357029B CN 201510630605 A CN201510630605 A CN 201510630605A CN 105357029 B CN105357029 B CN 105357029B
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- 238000004891 communication Methods 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 33
- 230000005856 abnormality Effects 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims description 60
- 238000004458 analytical method Methods 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000008092 positive effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- 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
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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
- H04L41/02—Standardisation; Integration
- H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
- H04L41/0273—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols using web services for network management, e.g. simple object access protocol [SOAP]
-
- 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
- H04L41/0677—Localisation of faults
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Selective Calling Equipment (AREA)
Abstract
The determination method for the intelligent substation communication link exception based on whole station information that the present invention relates to a kind of, establish the network structure incidence matrix of communication between devices, establish the transmitting-receiving configuration association matrix of equipment communication source and device target, communication link warning information of the acquisition from each equipment in real time, it is compared with equipment transmitting-receiving incidence relation with configuration association relationship, determines the equipment range for causing communication abnormality.A kind of determination method of intelligent substation communication link exception based on whole station information proposed by the invention guarantees intelligent substation safe operation, has positive effect to failure is promptly and accurately searched.
Description
Technical field
The present invention relates to power system automatic field, especially a kind of intelligent substation communication chain based on whole station information
The determination method of road exception.
Background technique
Communication link refers to the physical connection channel between two communication nodes.In intelligent substation, communication network is generallyd use
Medium of the network as production control information exchange.It is communicated between intelligent station equipment by link, link is being established, tieed up
Hold, discharge during be likely to occur various exceptions.These exceptions may cause link cisco unity malfunction, and resource cannot normal Shen
Please with release etc..To guarantee the safe and reliable operation of intelligent substation and after an event occurs providing foundation for event analysis,
Intelligent substation generally realizes the abnormality detection of equipment communication.By each equipment according to prior scheduled communication sending device with
Receiving device carries out real-time monitoring to the communications status of equipment room, by monitoring device real-time release warning information when being abnormal.
This alarm mode is only capable of the direct communication relationship of monitoring single equipment to other equipment.The communication of the equipment room of whole station is closed
System and communications status lack overall cognitive.The communication abnormality detection of intelligent substation at present, it is most of for for communications applications
, not yet there is the detection of the bottoms such as communication link exception in the detection that function is realized.
In intelligent substation, communication abnormality that equipment is monitored, it is not only possible to be caused by transceiver, it is also possible to
With communication link via links it is related.Therefore, in intelligent substation, there are one-to-one, one-to-many communication patterns
Under, the reason of station communication link occurs extremely is correctly held in time, to failure is promptly and accurately searched, guarantees intelligent substation
Safe operation has positive effect.
Summary of the invention
The detection for the intelligent substation communication link exception based on whole station information that the purpose of the present invention is to provide a kind of point
Analysis method, to overcome defect existing in the prior art.
To achieve the above object, the technical scheme is that:A kind of intelligent substation communication chain based on whole station information
The determination method of road exception, is realized in accordance with the following steps:
Step S1:The communications status automatic monitoring system based on whole station information is established, from the SCD file of intelligent substation
The communication receiver's information and sender of communications information of equipment room in intelligent substation are obtained, and according to unique serial number to each
Equipment is encoded, and the network structure incidence matrix of communication between devices is established;
Step S2:From the device configuration file of intelligent substation, each equipment equipment during transceiver communication is obtained
Related information between communication source and device target establishes the transmitting-receiving configuration association square of equipment communication source and device target
Battle array;
Step S3:Communication monitoring node device in the communications status automatic monitoring system acquires transceiver communication mistake in real time
The communication information of each equipment in journey, judges communication between devices reiving/transmitting state;
Step S4:If the communication monitoring node device monitors that equipment communication abnormality warning information occurs in equipment room,
The equipment communication abnormality warning information is uploaded to the communications status automatic monitoring system by the communication monitoring node device
In collection analysis server;The collection analysis server is received in conjunction with the corresponding communication of the equipment communication abnormality warning information
Hair-like state searches for equipment and communicates transmission path according to the network structure incidence matrix and the transmitting-receiving configuration association matrix
On equipment, determine and cause the equipment range of communication abnormality;
Step S5:The collection analysis server shows analysis result information to operation maintenance personnel.
In an embodiment of the present invention, in the step S1, the communications status automatic monitoring system includes communication prison
Survey node device, monitoring analysis server and collection analysis server;The monitoring node equipment is according to the monitoring analysis
The preset information of server executes monitoring process, and will be in monitoring process monitoring data collected according to preset information
Reach the collection analysis server;The collection analysis server analyzes received monitoring data, and to operation people
Member shows analysis result.
In an embodiment of the present invention, the preset information of the monitoring analysis server includes monitoring parameters and prison
Survey project.
In an embodiment of the present invention, described if there are the connections of direct communication circuit for equipment room in the step S1
The element of equipment room relevant position is set as 1 in network structure incidence matrix, is otherwise 0.
It in an embodiment of the present invention, include the instantiation of all IED equipment in the step S1, in the SCD file
Configuration and messaging parameter, the SCD file include the CID of each device.
In an embodiment of the present invention, in the step S2, using whole station information configuration file, full station equipment is obtained
Between the transmitting-receiving related information that communicates;According to the physical communication relationship between station equipment, actual motion device configuration association letter is obtained
Breath;According to the transmitting-receiving related information and the configuration association information, the transmitting-receiving of equipment communication source and device target is established
Configuration association matrix.
In an embodiment of the present invention, in the step S4, the collection analysis server is communicated according to the equipment
Abnormality alarming information is compared with the corresponding information of equipment in the transmitting-receiving configuration association matrix, completes the institute in the path
The analysis of the communications status of relevant equipment.
In an embodiment of the present invention, described after determination causes the equipment range of communication abnormality in the step S4
Collection analysis server is set according to the equipment within the scope of this by the association that the transmitting-receiving configuration association matrix obtains the equipment
Standby, correspondence analysis and the transceiver communication state for judging the associate device reduce equipment range.
Compared to the prior art, the invention has the advantages that:Intelligence based on whole station information proposed by the invention
The transmitting-receiving incidence matrix that the determination method of energy transformer substation communication link exception is communicated by the equipment for establishing intelligent substation
It is derived final with the device configuration incidence matrix based on equipment communication path in conjunction with the communication warning information of real-time monitoring
Point occurs for communication abnormality, and judgement causes the range of the equipment of communication abnormality, to failure is promptly and accurately searched, correctly holds in time
The reason of station communication link occurs extremely guarantees intelligent substation safe operation, has positive effect.
Detailed description of the invention
Fig. 1 is the determination method of the intelligent substation communication link exception based on whole station information in the present invention.
Fig. 2 is the apparatus arrangement structure figure of intelligent substation integrated monitoring system in one embodiment of the invention.
Fig. 3 is the equipment incidence matrix based on whole station communication network architecture in one embodiment of the invention.
Fig. 4 is the transmitting-receiving configuration association matrix for communicating source and target in one embodiment of the invention based on equipment.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
The present invention provides a kind of determination method of intelligent substation communication link exception based on whole station information, such as schemes
Shown in 1, realize in accordance with the following steps:
Step S1:The communications status automatic monitoring system based on whole station information is established, from the SCD of intelligent substation
(System Configuration Description, system configuration description)Equipment room in intelligent substation is obtained in file
Communication receiver's information and sender of communications information, and each equipment is encoded according to unique serial number, establish equipment room
The network structure incidence matrix of communication;In the present embodiment, if there are the connection of direct communication circuit, the network knots for equipment room
The element of equipment room relevant position is set as 1 in structure incidence matrix, is otherwise 0;
Step S2:From the device configuration file of intelligent substation, each equipment equipment during transceiver communication is obtained
Related information between communication source and device target establishes the transmitting-receiving configuration association square of equipment communication source and device target
Battle array;
Step S3:Communication monitoring node device in the communications status automatic monitoring system acquires transceiver communication mistake in real time
The communication information of each equipment in journey, judges communication between devices reiving/transmitting state;
Step S4:If the communication monitoring node device monitors that equipment communication abnormality warning information occurs in equipment room,
The equipment communication abnormality warning information is uploaded to the communications status automatic monitoring system by the communication monitoring node device
In collection analysis server;The collection analysis server is received in conjunction with the corresponding communication of the equipment communication abnormality warning information
Hair-like state searches for equipment and communicates transmission path according to the network structure incidence matrix and the transmitting-receiving configuration association matrix
On equipment, determine and cause the equipment range of communication abnormality;
Step S5:The collection analysis server shows analysis result information to operation maintenance personnel.
Further, in the present embodiment, in the step S1, the communications status automatic monitoring system includes communication
Monitoring node equipment, monitoring analysis server and collection analysis server;The monitoring node equipment is according to the monitoring point
The preset information of server is analysed, executes monitoring process, and according to preset information by monitoring process monitoring data collected
It is uploaded to the collection analysis server;The collection analysis server analyzes received monitoring data, and to operation
Personnel show analysis result.In the present embodiment, the preset information of the monitoring analysis server include monitoring parameters and
Monitoring project.
It further, in the present embodiment, include the example of all IED equipment in the step S1, in the SCD file
Change configuration and messaging parameter, the modeling of SCD file is completed by system integration manufacturer in intelligent station work, the SCD text
Part includes the CID of each device(Configured IED Description, IED configuration describing document).
Further, in the present embodiment, it in the step S2, using whole station information configuration file, obtains whole station and sets
The transmitting-receiving related information communicated between standby;According to the physical communication relationship between station equipment, the association of actual motion device configuration is obtained
Information;According to the transmitting-receiving related information and the configuration association information, the receipts of equipment communication source and device target are established
It is transported to and sets incidence matrix.
Further, in the present embodiment, in the step S4, the collection analysis server is logical according to the equipment
Believe abnormality alarming information, is compared with the corresponding information of equipment in the transmitting-receiving configuration association matrix, completes the path
The analysis of the communications status of all associate devices.
Further, in the present embodiment, in the step S4, after determination causes the equipment range of communication abnormality,
The collection analysis server obtains the association of the equipment by the transmitting-receiving configuration association matrix according to the equipment within the scope of this
Equipment, correspondence analysis and the transceiver communication state for judging the associate device reduce equipment range.
In order to allow those skilled in the art to further appreciate that, a kind of intelligence based on whole station information proposed by the invention becomes
The determination method of power station communication link exception, lower mask body are illustrated in conjunction with the embodiments.
By taking net adopts the intelligent substation of net hop pattern as an example, intelligent substation integrated monitoring system equipment configuration such as Fig. 2
It is shown, the unique serial number coding that has been each device configuration in figure.Each node device is automatic as the communications status based on whole station information
The device node of monitoring system, communications status collection analysis service function can be configured in station level equipment by user demand,
In the present embodiment, which is located at monitoring station.
The network structure incidence matrix that system by taking Fig. 2 as an example is established is as shown in figure 3, the equipment room for having telecommunication circuit to contact
Corresponding row, column infall element value is 1, remaining is 0.If 1. 5. there is directly contacting for circuit with interchanger 1 in engineer station,
Then engineer station is expert in 1, column 1, and the equal equipment of element with the infall of row 5, column 5 where interchanger 1 is 1.
The transmitting-receiving configuration association matrix based on equipment communication source and target that system is established by taking Fig. 2 as an example is as shown in Figure 4.?
In the substation of citing, there are following equipment transceiver communication relationships.
1) this interval procedure layer equipment and this interval protection measuring and controlling equipment have transmitting-receiving relationship;
2) all wall protection measuring and controlling equipments all have transceiver communication relationship with each equipment room of station level;
3) failure wave-recording equipment and whole station bay device, process layer devices and prudential sub-station have transmitting-receiving relationship.
The equipment transmitting-receiving incidence matrix established according to information above is as shown in Figure 4.
If monitoring station monitors protection, there is warning information in measuring and controlling equipment 1:1 Sampling interrupt of combining unit.Then according to receipts
It is transported to and sets incidence matrix, be derived from combining unit 1 and the communication between measuring and controlling equipment 1 is protected to break down.Failure is possible
Source is derived from possible fault coverage according to network structure incidence matrix:Combining unit 1, interchanger 3 and protection are surveyed
Control equipment 1.
At the same time, by check with combining unit 1, interchanger 3 and protection measuring and controlling equipment 1 have transmitting-receiving it is associated other
Equipment, it can be deduced that the connection status of each associate device 3 equipment rooms with more than.If failure wave-recording equipment and combining unit 1
Equipment state is normal, then fault coverage can narrow down to interchanger 3 and protection measuring and controlling equipment 1.And so on, it can be inferred that event
Hinder the minimum zone of point.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of determination method of the intelligent substation communication link exception based on whole station information, which is characterized in that according to
Following steps are realized:
Step S1:The communications status automatic monitoring system based on whole station information is established, is described from the system configuration of intelligent substation
The communication receiver's information and sender of communications information of equipment room in intelligent substation are obtained in file, and according to unique serial number
Each equipment is encoded, the network structure incidence matrix of communication between devices is established;
Step S2:From the device configuration file of intelligent substation, obtains each equipment equipment during transceiver communication and communicate
Related information between source and device target establishes the transmitting-receiving configuration association matrix of equipment communication source and device target;
Step S3:Communication monitoring node device in the communications status automatic monitoring system is acquired in real time during transceiver communication
The communication information of each equipment judges communication between devices reiving/transmitting state;
Step S4:It is described if the communication monitoring node device monitors that equipment communication abnormality warning information occurs in equipment room
The equipment communication abnormality warning information is uploaded in the communications status automatic monitoring system by communication monitoring node device
Collection analysis server;The collection analysis server is in conjunction with the corresponding transceiver communication shape of the equipment communication abnormality warning information
State is searched on equipment communication transmission path according to the network structure incidence matrix and the transmitting-receiving configuration association matrix
Equipment determines the equipment range for causing communication abnormality;
Step S5:The collection analysis server shows analysis result information to operation maintenance personnel;
In the step S2, using whole station information configuration file, the transmitting-receiving related information communicated between full station equipment is obtained;According to
Physical communication relationship between station equipment obtains actual motion device configuration related information;According to the transmitting-receiving related information with
And the configuration association information, establish the transmitting-receiving configuration association matrix of equipment communication source and device target.
2. the determination method of the intelligent substation communication link exception according to claim 1 based on whole station information,
It is characterized in that, in the step S1, the communications status automatic monitoring system includes communication monitoring node device, monitoring point
Analyse server and collection analysis server;Communication monitoring node device the pre-seting according to the monitoring analysis server
Information executes monitoring process, and monitoring process monitoring data collected is uploaded to the acquisition point according to preset information
Analyse server;The collection analysis server analyzes received monitoring data, and shows analysis result to operations staff.
3. the determination method of the intelligent substation communication link exception according to claim 2 based on whole station information,
It is characterized in that, the preset information of the monitoring analysis server includes monitoring parameters and monitoring project.
4. the determination method of the intelligent substation communication link exception according to claim 1 based on whole station information,
It is characterized in that, in the step S1, if equipment room there are the connection of direct communication circuit, in the network structure incidence matrix
The element of equipment room relevant position is set as 1, is otherwise 0.
5. the determination method of the intelligent substation communication link exception according to claim 1 based on whole station information,
It is characterized in that, the instantiation that the system configuration describes in file comprising all intelligent electronic devices is matched in the step S1
It sets and messaging parameter, the system configuration describes the intelligent electronic device configuration describing document that file includes each device.
6. the determination method of the intelligent substation communication link exception according to claim 1 based on whole station information,
It is characterized in that, the collection analysis server is according to the equipment communication abnormality warning information, with institute in the step S4
The corresponding information of equipment stated in transmitting-receiving configuration association matrix is compared, and completes the communication shape of all associate devices in the path
The analysis of state.
7. the determination method of the intelligent substation communication link exception according to claim 1 based on whole station information,
It is characterized in that, in the step S4, after determination causes the equipment range of communication abnormality, the collection analysis server root
According to the equipment within the scope of this, the associate device of the equipment is obtained by the transmitting-receiving configuration association matrix, correspondence analysis simultaneously judges
The transceiver communication state of the associate device reduces equipment range.
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CN108306747B (en) * | 2017-01-11 | 2021-07-23 | 阿里巴巴集团控股有限公司 | Cloud security detection method and device and electronic equipment |
JP6534710B2 (en) * | 2017-08-31 | 2019-06-26 | 本田技研工業株式会社 | Communication state analysis method and communication state analysis system |
CN110070189B (en) * | 2018-01-23 | 2023-05-23 | 福建永福数字能源技术有限公司 | Intelligent substation protection system safety measure checking method |
CN108462252B (en) * | 2018-01-31 | 2020-02-21 | 国网安徽省电力有限公司 | Intelligent substation secondary circuit state evaluation method based on physical quantity logical mapping |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101605372A (en) * | 2009-06-05 | 2009-12-16 | 重庆邮电大学 | A kind of centralized Mesh wireless sensor network redundant path scheduling and management method |
CN103915898A (en) * | 2014-03-04 | 2014-07-09 | 广东电网公司珠海供电局 | Operation and maintenance method for intelligent substation network |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101605372A (en) * | 2009-06-05 | 2009-12-16 | 重庆邮电大学 | A kind of centralized Mesh wireless sensor network redundant path scheduling and management method |
CN103915898A (en) * | 2014-03-04 | 2014-07-09 | 广东电网公司珠海供电局 | Operation and maintenance method for intelligent substation network |
Non-Patent Citations (1)
Title |
---|
智能变电站通信网络的现场测试;林国新等;《电力与电工》;20120630;全文 * |
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