CN105610246B - Substation information based on information redundancy verifies error correction method - Google Patents
Substation information based on information redundancy verifies error correction method Download PDFInfo
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Classifications
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- 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
- H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
- H02J13/00009—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of substation information verification error correction method based on information redundancy, comprising: establish the redundancy source of each equipment room；According to box to box redundancy mode, the subscribing relationship of redundancy, establishes redundancy storage table between initialization apparatus；Under system running state, each equipment receives to subscribe to message, and subscribes to the identical redundant message of APPID from other redundance units, and gained message information is stored in redundancy storage table；The redundance unit that each equipment is not inconsistent with other equipment information is screened, error message and correction message are sent back into signal source, and issue abnormality alarming.Present invention accomplishes substation's real-times, the service requirement of reliability, a possibility that reducing the workload of error correction information and greatly reduce fault.
Description
The application is the applying date: 2015.05.12, application number: " 201510240821.7 " denomination of invention: " are based on information
The divisional application of the substation information verification error correction method of redundancy ".
Technical field
The present invention relates to electric power project engineering fields, verify more particularly to a kind of substation information based on information redundancy
Error correction method.
Background technique
Promote and build with intelligent substation, intelligent substation show equipment modeling standardization, primary equipment it is intelligent,
The features such as electrical secondary system networking.Using information exchange and network share as the intelligent substation technology of technical characteristic, power transformation is being given
While station brings the various aspects such as organizational structure, the method for operation, technical principle to develop, intelligent substation communication network is also being transmitted
Delay, the bit error rate, network state etc. directly affect substation safety stable operation.
The sampling currently, major functions such as the measurement of transformer station process layer and wall, protection, control place one's entire reliance upon
It is worth the information exchange of (SV) message and transformer substation case (GOOSE) message towards general object, and in current engineering practice
It is verified during information exchange and use without message correctness, a large amount of storage records, side only is carried out to exchange message
Just cause of accident is manually being checked by searching for stored messages after the accident.The information processing manner of this subsequent error correction is unhelpful
In the promotion of substation communication network reliability, control in real time can not be provided for substation in exception or accident situation or restored
Measure.
Under normal circumstances, substation communication network is reported using sampled value SV message and towards substation general purpose event GOOSE
Text carries out information transmission and protection control, although having reflection message whether effective quality position in these two types of frame structures,
But quality position content is formed in source device, is only reflected the quality problem in message generating process, can not be reflected information
The message damage that occurs in exchange process, error code problem, do not provide effective information school in current transformer substation actual motion
Test with error correction information method, only storage record is carried out to the message in operational process in substation, by manually being examined after accident
It looks into stored messages content and carries out malfunction elimination and recovery.
However, checking that stored messages check the information checking of failure and error correcting system is a kind of post-processing mode, it is difficult to
Meet substation's real-time, the service requirement of reliability, also, the error correction information mode of desk checking not only brings complicated work
It measures, a possibility that there is also human errors.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide it is a kind of based on information redundancy substation information verification entangle
Wrong method improves and obtains information correctness, while also providing effective way for Network status judgement, guarantees intelligent substation peace
Full stable operation reduces intelligent substation communication network information error code, information errors and information risk of missing.
A kind of substation information verification error correction method based on information redundancy, comprising:
Establish the redundancy source of each equipment room；
According to box to box redundancy mode, the subscribing relationship of redundancy, establishes redundancy storage table between initialization apparatus；
Under system running state, each equipment receives to subscribe to message, and identical superfluous from other redundance units subscription APPID
Gained message information is stored in redundancy storage table by remaining message；
The redundance unit that each equipment is not inconsistent with other equipment information is screened, error message and correction message are sent back to
Signal source, and issue abnormality alarming.
The above-mentioned substation information based on information redundancy verifies error correction method, proposes multisignal source in information redundancy mode
Redundancy reflects Information abnormity situation caused by contingency error code and channel permanent damages, provides and solves contingency error code
With Information abnormity situation scheme caused by channel permanent damages, judge whether data are abnormal simultaneously according to redundancy significant condition
Error correction is carried out, substation's real-time, the service requirement of reliability are met, reduce the workload of error correction information and is greatly reduced
A possibility that fault.
Detailed description of the invention
Fig. 1 is that the substation information based on information redundancy of one embodiment verifies error correction method overall architecture schematic diagram；
Fig. 2 is information checking and one application example algorithm flow chart of error correction method based on GOOSE message agreement；
Fig. 3 is the structural schematic diagram of the information redundancy mode based on multisignal source；
Fig. 4 is the information checking and one application example algorithm stream of error correction method of the information redundancy mode based on multisignal source
Cheng Tu；
Fig. 5 is process layer frame structure schematic diagram；
Fig. 6 is GOOSE message retransmitted packet schematic diagram of mechanism；
Fig. 7 is an exemplary electrical primary wiring diagram；
Fig. 8 is information redundancy and verification one application example algorithm flow of error correction method based on primary system connection type
Figure；
Fig. 9 reflects different communication network Exception Type schematic diagrames from error correction method for three kinds of information redundancy modes.
Specific embodiment
It includes information source, switching node and exchanging chain that substation communication network information, which generates mistake or the key link of error code,
The aspect of road three, there is mistake in exchange information and error code is divided into accidental error, error code (such as temporary electromagnetic interference) and permanently
Property mistake, two kinds of error code (such as optical power loss, equipment fault).
Under normal circumstances, the information error condition of contingency can be evaded by the mechanism of giving out a contract for a project of repeatability, and for
Permanent information error code then needs to provide signal source or the information exchange path of redundancy for wrong link.Become to promote intelligence
Power station communication network reliability, as shown in FIG. 1, FIG. 1 is the power transformations based on information redundancy of one embodiment proposed by the present invention
It stands information checking error correction method overall architecture schematic diagram.
As shown in Figure 1, this method includes two aspects of information redundancy method and error correction information method, information redundancy method master
It is corresponding including multisignal source redundancy, message protocol redundancy and/or equipment organizational form (primary system connection type)
Respectively multisignal source redundancy error correction (comparison of multisignal source information), the error correction of message protocol redundancy (retransmit redundancy report
Text comparison) and/or equipment organizational form redundancy error correction (an electrical quantity equality constraint).
As the scheme of one embodiment, the present invention provides a kind of substation information verification error correction side based on information redundancy
Method may include steps of:
Establish the redundancy source of each equipment room；
According to box to box redundancy mode, the subscribing relationship of redundancy, establishes redundancy storage table between initialization apparatus；
Under system running state, each equipment receives to subscribe to message, and identical superfluous from other redundance units subscription APPID
Gained message information is stored in redundancy storage table by remaining message；
The redundance unit that each equipment is not inconsistent with other equipment information is screened, error message and correction message are sent back to
Signal source, and issue abnormality alarming.
Further, the method for establishing the redundancy source of each equipment room, may include as follows: measure and control device,
Failure wave-recording, PMU, electrical energy measurement and element protection are passed through in process-level network not by combining unit sending method
Primary system information about power is obtained with path；Each equipment room is mutually redundant signal source according to primary system information about power composition
Redundance unit.
Above scheme is information redundancy and information checking and error correction method based on multisignal source.Information exchange networkization with
Standardization is the important feature that intelligent substation is different from Generic Substation.The data exchange of networking is brought sufficiently to substation
Data sharing and information redundancy.For in traditional sense, combining unit is unique sampled value information source of substation communication network.
But under intelligent substation system, combining unit is as the publisher of information and protection observing and controlling, failure wave-recording, monitoring five are anti-, PMU
Deng composition Publish-subscribe relationship.Although the signal source that sampled value subscribes to equipment is identical, the exchange road of acquisition information
Diameter, exchanged form are different, the solution of the present invention, and under the premise of combining unit correctly works, the standby of sampled value is believed
Breath and the error correction of gained information checking.
Refering to what is shown in Fig. 2, Fig. 2 is the structural schematic diagram of the information redundancy mode based on multisignal source, measure and control device, failure
Recording, PMU, electrical energy measurement and element protection are sent by combining unit and obtain one via paths different in process-level network
Subsystem information about power, each equipment room constitute the redundance unit for being mutually redundant signal source.
According to the redundancy relationship of equipment room information, each equipment room establishes the redundancy storage table based on multisignal source,
Shown in reference table 1, table 1 is the redundancy storage table an of example, using the APPID of wanted checking prediction message as major key, to all
It subscribes to the information equipment and carries out information comparison verification and error correction.
Table 1
Specifically, the redundancy source of all kinds of messages can be initially set up, then by a variety of converging informations for subscribing to equipment
Storage, and error correction is compared according to the information in a variety of sources and has information.That is box to box redundancy mode according to Fig.5, initialization
The subscribing relationship of box to box redundancy information, establishes redundancy storage table as shown in table 1, and under system running state, each equipment is connect
The identical redundant message of APPID is subscribed to by subscription message, and from other redundance units, gained message information is stored in table 1,
The redundance unit not being inconsistent with other equipment information is screened, error message and correction message are sent back into signal source, and make different
Often alarm.
Refering to what is shown in Fig. 3, Fig. 3 is an application example algorithm flow chart based on the method for the present invention, which is a kind of
The information checking and error correction method of information redundancy mode based on multisignal source, may include following process:
S601 initializes redundance unit subscribing relationship；
S602 establishes redundance unit message store table；
S603 receives GOOSE message；
The identical message content of S604, comparison APPID；
S605 judges whether content is identical, if so, returning to s603, otherwise executes s606；
S606 issues abnormality alarming and carries out error correction.
As the scheme of one embodiment, the present invention provides a kind of substation information verification error correction side based on information redundancy
Method can also include the following steps:
Message protocol information redundancy is carried out to substation information according to the message characteristic of GOOSE message；Wherein, the message
For the GOOSE message based on IEC61850 standard；
By the message protocol information of redundancy in current message protocol information with identical APPID and StNum message in
Appearance is verified and is determined, if content is not inconsistent, is replaced current message content and is issued abnormality alarming；
Message change number under APPID, the StNum is counted, when change number reaches setting number (generally
3 times) after, determine that exception or failure occurs in exchange channel, issues link abnormality alarming；Wherein, SqNum is to transmit Sequence Number,
StNum is sequence of events number.
The above-mentioned substation information based on information redundancy verifies error correction method, proposes that agreement is superfluous in information redundancy mode
It is remaining, channel contingency error code communication network Exception Type is reflected, it is different to provide information caused by solving channel contingency error code
Normal quick Solution judges whether data exception and carry out error correction according to redundancy significant condition, meets substation
Real-time, the service requirement of reliability, a possibility that reducing the workload of error correction information and greatly reduce fault.
GOOSE message information redundancy and information checking of the above scheme based on IEC61850 standard, specifically, IEC61850
It is the universal standard of Automation of Electric Systems, IEC61850 realizes the engineering running standardization of intelligent substation.IEC61850
In to define in process-level network mainly include SV message and GOOSE message, frame structure is as shown in figure 4, Fig. 4 is process
Layer frame structure schematic diagram, wherein (a) is the frame structure of GOOSE message, (b) is the frame structure of SV message.In addition,
IEC61850 defines the message characteristic of process-level network, including traffic model, mechanism of giving out a contract for a project and performance constraints.Wherein, SV is reported
Text is periodically packet without retransmission mechanism, and the sudden message in GOOSE message for controlling trip signal has interval of giving out a contract for a project
The repeating transmission machine contracting system of linear reduction, as shown in figure 5, Fig. 5 is GOOSE message retransmitted packet schematic diagram of mechanism.
Two kinds of messages of regulation SV and GOOSE have the APPID (application for uniquely determining message in IEC61850
Identification it) identifies, refers to the application identities editor in IEC61850 specification.Since SV message is periodicity sending report
Text does not have retransmission mechanism, and for the message characteristic of IEC61850 standard, the invention proposes the substations based on information redundancy
Information checking error correction method, this method are information redundancy and information checking based on IEC61850 standard, are directed to GOOSE message
Information checking and error correction.
GOOSE message has periodically with two kinds of sudden message, and IEC61850 defines SqNum in GOOSE message
(transmitting Sequence Number) and two kinds of counting sequences of StNum (sequence of events number), SqNum are mainly used for same message retransmission sequence number
It counts, and StNum is used for different event flip-flop number.Using two kinds of counting sequences number of StNum and SqNum.
In short, there is the GOOSE message content of identical APPID and StNum by comparing, school is carried out to storage information
It tests and determines, if there is the message not being inconsistent with storage content, then replace original message and issue abnormality alarming, furthermore, it is possible to
The GOOSE message change number under APPID, the StNum is counted using APPID_StNum_ScNum, when change number
Connection reaches 3 times and thinks that exchanging channel exception or failure occurs, and issues link abnormality alarming immediately.
Refering to what is shown in Fig. 6, Fig. 6 is an application example algorithm flow chart based on the method for the present invention, which is a kind of
Information checking and error correction method based on GOOSE message agreement, mainly comprise the following processes:
S401, determination method initialize all APPID_StNum_ScNum=0；
S402, GOOSE message receive；
S403, GOOSE message parsing；
S404 determines whether message 17-18 byte is 0 × 8888；If so, executing s405, s402 is otherwise returned；
S405 obtains APPID, SqNum, StNum of message；
S406 determines whether there is identical APPID in the database of redundant storage, if so, executing s405, otherwise executes
s413；
S407 judges whether there is identical StNum under same APPID, if so, executing s408, otherwise executes s413；
S408 compares identical StNum message data content；
S409 judges whether GOOSE message data content is consistent, if so, executing s410, otherwise executes s413；
S410, carries out data exception alarm, and replacement data simultaneously counts APPID_StNum_ScNum+1；
S411, judges whether APPID_StNum_ScNum is greater than or equal to 3；If so, executing s412, s413 is otherwise executed；
S412, link abnormality alarming；
S413, GOOSE message are stored by structure, and are returned and executed s402.
As the scheme of one embodiment, the present invention provides a kind of substation information verification error correction side based on information redundancy
Method can further include following steps:
Based on primary system connection relationship, each electric quantity information is established into the information subscribing relationship between combining unit,
An electrical quantity equality constraint is established, into next step；
In normal course of operation, subscription message is received and parsed through by subscription terminal immediately, and by detection network whether
Have whether protection act is broken down with real-time judge network, if network is under normal operating conditions, into next step；
Primary system electric quantity information is obtained according to parsing content and carries out the spreadability storage of structuring, when all subscription
When message is parsed and stored, the information content of setting is verified, if check results do not meet electrical quantity etc.
Formula constraint, into next step；
It finds out and abnormal combining unit occurs, and alerted.
The above-mentioned substation information based on information redundancy verifies error correction method, proposes in information redundancy mode primary electrical
The information redundancy of constraint is reflected by signal source (such as combining unit in substation or primary voltage current transformer) failure institute
Bring data problem provides the scheme for solving to cause data to go wrong due to signal source failure, according to constraint condition
Judge whether data exception and carry out error correction, meets substation's real-time, the service requirement of reliability, reduce error correction information
Workload and a possibility that greatly reduce fault.
In one embodiment, occur the method for abnormal combining unit for finding out, it can be using based on multi signal
The information checking of the information redundancy mode in source is completed with error correction method, is specifically included as follows:
Establish the redundancy source between each combining unit；According to redundant fashion between combining unit, combining unit is initialized
Between redundancy subscribing relationship, establish redundancy storage table；Under system running state, each combining unit receives to subscribe to report
Text, and the identical redundant message of APPID is subscribed to from other redundancy combining units, gained message information is stored in redundancy and is deposited
It stores up in table；The redundance unit that each combining unit is not inconsistent with other combining unit information is screened.
Above scheme is specifically, to be namely based on primary system company based on equipment organizational form redundancy error correction scheme
Connect the information redundancy and verification error correction method of mode.Unique letter of the combining unit as substation communication network electrical quantity sampling value
Number source, is not have redundance unit or redundant message, and therefore, combining unit of the present invention between different interval passes through certain
Organizational form and verifying, for check information each other and compare error correction.
Refering to what is shown in Fig. 7, Fig. 7 is an exemplary electrical primary wiring diagram, in figure, 1-3 is spaced under normal operating condition
The voltage sample value that uploads of combining unit should be almost consistent, and should to meet kirchhoff electric current fixed for the current sampling data uploaded
Rule；Likewise, the current sampling data at interval 2 and interval 4 should be consistent, and 1,3,4 current sampling datas of interval should also meet Kiel
Hough current law.According to the connection type of primary system, the combining unit of each compartment, which exists, connects feelings based on primary system
The redundancy of condition.
As seen in Figure 7, the primary system electric quantity information that combining unit uploads is closed with diversified equation
Related combining unit sampling value information is subscribed to by configuring in advance by system, and cooperation circular forms the redundancy letter that can be verified
Breath.
Refering to what is shown in Fig. 8, Fig. 8 is an application example algorithm flow chart based on the method for the present invention, which is a kind of
Information redundancy and verification error correction method based on primary system connection type, may include following process:
S801 establishes the subscribing relationship between combining unit；
S802 receives and parses through the message of subscription；
S803, judges whether primary system breaks down, if so, returning to S802, otherwise executes S804；
S804 obtains node electric quantity information；
S805 stores message；
S806 judges whether that all subscription packet storages are completed, if so, executing S807, otherwise returns to S802；
S807 judges whether to meet an electrical quantity the constraint relationship, if so, return S802, otherwise executes S808；
S808 calls multisignal source information checking to be detected and corrected with error correction method, finds out and abnormal conjunction occurs
And unit,；
S809 is alerted according to the combining unit for occurring abnormal.
The present invention proposes a kind of substation information verification error correction method based on information redundancy, can be in message protocol, letter
Source setting or equipment organizational form etc. propose different angle, the information redundancy scheme of level, and are directed to redundancy respectively
Content characteristic proposes adaptable information checking and error correction method, above-mentioned message protocol, information source setting or equipment organizational form three
Kind information redundancy and verification can use independently of each other with error correction method, can also coordinate to use, pass through real-time redundancy
It compares to improve and also provides effective way while obtaining information correctness for Network status judgement.
Technical solution of the present invention can carry out the redundancy check and error correction of real-time to substation communication network information,
The packet storage method that error correction combines after accident that current substation uses is improved, is reduced and is manually put into and avoid
Artificial error correction bring fault；And a variety of redundant fashions and error correction method can be used, Substation Process layer network is covered
Main type of message, multiple redundancy information checking error correction method improve substation communication network reliability.
In summary each embodiment, the present invention propose protocol redundancy in information redundancy mode, signal source redundancy and are based on
Primary electrical equality constraint three kinds of modes of redundancy, three kinds of information redundancy modes and error correction method are from different redundancy acquisition sides
Formula is started with, and judges whether data are abnormal according to redundancy significant condition or constraint condition.Three kinds of information redundancies and error correction method
Independently of each other and it can coordinate to use, as shown in figure 9, Fig. 9 reflects different communications from error correction method for three kinds of information redundancy modes
Network Abnormal type schematic diagram.Specifically, protocol redundancy is the quick of Information abnormity caused by solving channel contingency error code
Solution, signal source redundancy are able to solve Information abnormity situation caused by contingency error code and channel permanent damages, but this
Two schemes cannot be handled as brought by signal source (combining unit or primary voltage current transformer in substation) failure
Data problem.The information redundancy and error correction method for an electrical constraints for needing to propose using this programme at this time.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of substation information based on information redundancy verifies error correction method characterized by comprising
Establish the redundancy source of each equipment room；Wherein, each equipment room constitutes the redundancy for being mutually redundant information source
Equipment；
According to box to box redundancy mode, the subscribing relationship of redundancy, establishes redundancy storage table between initialization apparatus；Its
In, the redundant fashion is multisignal source redundant fashion；
Under system running state, each equipment receives to subscribe to message, and subscribes to the identical redundancy report of APPID from other redundance units
Gained message information is stored in redundancy storage table by text；
The redundance unit that each equipment is not inconsistent with other equipment information is screened, error message and correction message are sent back into signal
Source, and issue abnormality alarming；Wherein, the other equipment be mutually redundant in the redundance unit of information source in addition to itself other are superfluous
Remaining equipment.
2. the substation information according to claim 1 based on information redundancy verifies error correction method, which is characterized in that establish
The step of redundancy source of each equipment room includes:
Measure and control device, failure wave-recording, PMU, electrical energy measurement and element protection were passed through by combining unit sending method
Different paths obtain primary system information about power in journey layer network；
Each equipment room constitutes the redundance unit for being mutually redundant information source according to the primary system information about power.
3. the substation information according to claim 1 based on information redundancy verifies error correction method, which is characterized in that also wrap
It includes:
Message protocol information redundancy is carried out to substation information according to the message characteristic of GOOSE message；Wherein, the message is base
In the GOOSE message of IEC61850 standard；
By the message protocol information of redundancy in current message protocol information with identical APPID and StNum message content into
Row verification and judgement, if content is not inconsistent, replaces current message content and issue abnormality alarming；
Message change number under APPID, the StNum is counted, after change number reaches setting number, determines exchange
There is exception or failure in channel, issues link abnormality alarming；Wherein, SqNum is to transmit Sequence Number, and StNum is sequence of events number.
4. the substation information according to claim 3 based on information redundancy verifies error correction method, which is characterized in that described
Number is set as 3 times.
5. the substation information according to any one of claims 1 to 4 based on information redundancy verifies error correction method, feature
It is, further includes:
Based on primary system connection relationship, each electric quantity information is established into the information subscribing relationship between combining unit, is established
Electrical quantity equality constraint, into next step；
In normal course of operation, subscription message is received and parsed through by subscription terminal immediately, and by whether having guarantor in detection network
Whether shield movement is broken down with real-time judge network, if network is under normal operating conditions, into next step；
Primary system electric quantity information is obtained according to parsing content and carries out the spreadability storage of structuring, when all subscription messages
When being parsed and being stored, the information content of setting is verified, if check results do not meet an electrical quantity equation about
Beam, into next step；
It finds out and abnormal combining unit occurs, and alerted.
6. the substation information according to claim 5 based on information redundancy verifies error correction method, which is characterized in that search
The step of abnormal combining unit occur include:
Establish the redundancy source between each combining unit；
According to redundant fashion between combining unit, the subscribing relationship of redundancy between combining unit is initialized, redundancy is established and deposits
Store up table；
Under system running state, each combining unit receives to subscribe to message, and identical from other redundancy combining units subscription APPID
Redundant message, gained message information is stored in redundancy storage table；
The redundance unit that each combining unit is not inconsistent with other combining unit information is screened.
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| CN109283406B (en) * | 2018-08-13 | 2021-04-23 | 中国南方电网有限责任公司超高压输电公司梧州局 | Current loop monitoring system based on total station data contrastive analysis |
| US11003195B2 (en) * | 2019-02-28 | 2021-05-11 | GM Global Technology Operations LLC | Method to prioritize the process of receiving for cooperative sensor sharing objects |
| CN114257660B (en) * | 2021-11-04 | 2024-05-07 | 南方电网数字电网研究院有限公司 | SV and GOOSE message processing method, device, equipment and storage medium |
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