CN109450094A - A kind of substation relay protection method for inspecting and system - Google Patents
A kind of substation relay protection method for inspecting and system Download PDFInfo
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Classifications
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- H02J13/0006—
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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
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
Abstract
The invention discloses a kind of substation relay protection method for inspecting and systems, belong to power station inspection technical field, including obtaining the SCD file of substation, and parse to SCD file, obtain the IP address list of whole station cell device;According to IP address list, mms communication service successively is established with the cell device in whole station;The protection fixed value information of whole station cell device is transferred by mms communication service;The protection fixed value information transferred is compared with the protection fixed value information that user inputs, obtains relay protection constant value inspection result.The present invention is based on the analyses to substation's core document SCD file; realize relay protection constant value verification; improve the verification efficiency of relay protection device definite value; the quality of inspection is largely increased; the generation for the case where human factor causes three-dimensional missing inspection, false retrieval is avoided simultaneously, it is ensured that the safe and stable operation of power grid.
Description
Technical field
The present invention relates to power station inspection technical field, in particular to a kind of substation relay protection method for inspecting and system.
Background technique
Currently, the inspection of substation mainly dependence is accomplished manually, oneself of patrol officer is relied primarily on during inspection
Feel property verifies every protective device of substation, especially " summer peak meeting " period or period of the protection of electricity, even more requires patrol officer
It is completed in a short time the inspection work of all protective devices, the especially ratio of the verification of protective device definite value and sample information
It is right, occupy a large amount of man power and material.And this mode manually verified is by excessive, the Wu Fabao that thinks that subjective factor is influenced
Demonstrate,prove the accuracy verified.
On the one hand with the fast development of power grid, power grid scale constantly expands, protects the double growth of the workload of inspection, give
The drawbacks of conventional routine inspection mode brings great challenge, conventional routine inspection mode missing inspection, false retrieval is increasingly prominent.
On the other hand in substation relay protection operating mode change, such as with optical cable instead of traditional light
Cable connection, the sampling of protection, tripping isotype are all carried out in the form of SV message, GOOSE message, stand in trip protection
Output clamping, function pressing plate are all replaced by GOOSE soft pressing plate, function soft pressing plate and SV soft pressing plate.These are subversive
Change and brings difficulty to field inspector's inspection work, in recent years, intelligence power transformation caused by protecting the miscarrying of pressing plate, leakage to throw
False protection accident of standing happens occasionally.
Summary of the invention
The purpose of the present invention is to provide a kind of substation relay protection method for inspecting and systems, to improve transforming plant protecting
The accuracy rate of inspection.
In order to achieve the above object, the present invention uses a kind of substation relay protection method for inspecting, include the following steps:
The SCD file of substation is obtained, and SCD file is parsed, obtains the IP address column of whole station cell device
Table;
According to IP address list, mms communication service successively is established with the cell device in whole station;
The protection fixed value information of whole station cell device is transferred by mms communication service;
The protection fixed value information transferred is compared with the protection fixed value information that user inputs, obtains relay protection constant value
Inspection result.
Preferably, further includes:
Soft pressing plate remote signalling information is transferred by the mms communication service;
The soft pressing plate remote signalling information transferred is compared with the soft pressing plate remote signalling information that user inputs, obtains pressing plate remote signalling
Information inspection result.
Preferably, further includes:
Pass through the log information stated mms communication service and transfer the whole station cell device;
The log information of the whole station cell device is analyzed, log information inspection result is obtained.
Preferably, further includes:
Monitor the configuration file of the whole station cell device and the corresponding relationship of the SCD file version in real time;
The configuration file of the whole station cell device or the SCD file version are not adjusted to when corresponding in version
It is whole.
Preferably, further includes:
When obtaining the lower dress of cyclic redundancy check and each device latest configuration file that the whole station cell device uploads
Between;
According to CRC code and the lower ETL estimated time of loading of each device latest configuration file, search what the SCD file upgrading was influenced
The information of device.
Preferably, further includes:
Judge whether the SCD file has cyclic redundancy check protection;
If it is not, then increasing cyclic redundancy check for the SCD file, the SCD file is upgraded.
Preferably, in the substation, there are when the SCD file of at least two different editions, further includes:
The SCD file of at least two different editions is analysed and compared, comparison result is obtained.
Preferably, the SCD file for obtaining substation, and SCD file is parsed, obtain whole station cell device
IP address list, comprising:
The SCD file of substation is obtained, and according to the data structure of pre-defined tree, generates new structure tree;
In new structure tree, the connection relationship of communication network is searched, obtains the IP address of the whole station cell device
List.
On the other hand, a kind of substation relay protection cruising inspection system, including server and IEC61850mms client are provided
End, server access substation's station level network, and server includes obtaining module, starting module, transferring module and result is true
Cover half block:
The SCD file that module is used to obtain substation is obtained, and SCD file is parsed, obtains whole station wall dress
The IP address list set;
Starting module is for starting IEC61850mms client, according to IP address list, successively with the wall in whole station
Device establishes mms communication service;
Module is transferred for transferring the protection fixed value information of whole station cell device by mms communication service;
As a result determining module is used to for the protection fixed value information transferred being compared with the protection fixed value information that user inputs,
Obtain relay protection constant value inspection result.
Preferably, the acquisition module includes acquiring unit, structure tree generation unit and searching unit;
Acquiring unit is used to obtain the SCD file of substation;
Structure tree generation unit is used for the data structure according to pre-defined tree, carries out to the SCD file of the substation
Processing, generates new structure tree;
Searching unit is used in new structure tree, is searched the connection relationship of communication network, is obtained the whole station wall
The IP address list of device.
Compared with prior art, there are following technical effects by the present invention: since SCD file describes all intelligence in substation
It is logical between the exemplary configuration and messaging parameter, IED of energy electronic equipment (Intelligent Electronic Device, IED)
The information such as letter configuration and transforming plant primary system structure.By the analysis to SCD file, the IP address list of IED is obtained, so
Mms communication service is established according to the cell device in IP address list and whole station afterwards, transfers the protection of whole station cell device
Fixed value information, by the way that the protection fixed value information of each device to be compared with the protection fixed value information that user inputs, if the two is believed
The consistent then relay protection constant value of breath is normal, is alerted if inconsistent.This programme can realize automatically institute in one point of substation
There is the inspection of protective device to work, improve substation inspection efficiency, avoids verifying mistake caused by because of human factor, verifies and omit
The case where.
Detailed description of the invention
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail:
Fig. 1 is a kind of flow diagram of substation relay protection method for inspecting;
Fig. 2 is IEC61850 log model schematic diagram;
Fig. 3 is on-line testing schematic diagram during inspection;
Fig. 4 is offline control schematic diagram during inspection;
Fig. 5 is the inspection report schematic diagram generated;
Fig. 6 is a kind of structural schematic diagram of substation relay protection cruising inspection system.
Specific embodiment
In order to further explain feature of the invention, reference should be made to the following detailed description and accompanying drawings of the present invention.Institute
Attached drawing is only for reference and purposes of discussion, is not used to limit protection scope of the present invention.
As shown in Figure 1, including the following steps S1 extremely present embodiment discloses a kind of substation relay protection method for inspecting
S4:
S1, the SCD file for obtaining substation, and SCD file is parsed, obtain the IP address of whole station cell device
List;
S2, according to IP address list, successively establish mms communication service with the cell device in whole station;
S3, the protection fixed value information list that whole station cell device is transferred by mms communication service;
S4, the protection fixed value information transferred is compared with the protection fixed value information list that user inputs, obtains relay
Protect definite value inspection result.
It should be noted that this programme obtains the IP address column of whole station cell device by reading and parsing SCD file
Table is successively established mms with the cell device in whole station according to IP address list and is communicated, and initializes service by mms and establishes entirely
It stands the traffic model of cell device, transfers the protection fixed value information list of whole station cell device respectively by mms service, and
(with the storage of excel form) protection fixed value information list with user's input compares, if the two information is always, recognizes
It is normal for relay protection constant value and pressing plate information, if inconsistent, alert nonconformance.By based on the analysis to SCD file,
The verification for realizing relay protection constant value, improves the verification efficiency of relay protection device definite value, while avoiding human factor and making
At missing inspection, false retrieval phenomena such as, improve the quality of inspection, to eliminate the security risk of power grid in time, guarantee the peace of power grid
Full stable operation.
Specifically, SCD file describes the communication in substation between the exemplary configuration and messaging parameter, IED of all IED
The information such as configuration and transforming plant primary system structure.SCD file includes 5 essential elements: Header (information header),
Substation (substation's description), Commu-nication (communication system description), IED (intelligent electronic device description) and
DataTypeTemplates (data type template).
Wherein: Header includes the version number of SCL file and its map information of NameSpace;Substation is mainly retouched
State the functional structure of substation, identify primary equipment and its between electric connecting relation;It is each that IED describes substation respectively
The configuration and its function of IED includes the information such as access point, logical device, logical node, data object;Communication is logical
Logic bus and the access point IED are crossed to describe the connection relationship of communication network;DataTypeTemplates defines patrolling for file
The data object and data attribute that volume node type and the logical node are included.
Moreover, generally comprise multiple IED in practical applications, in substation, in initial configuration SCD file, need pair
The IED of whole station makees specific IEDNAME, address, multicast etc. and is allocated.
According to the configuration process of above-mentioned SCD file, the above-mentioned steps S1 of the present embodiment: obtaining the SCD file of substation, and
SCD file is parsed, obtains including the following steps S11 to S13 in the IP address list of whole station cell device:
S11, SCD file is analyzed, obtains the essential element that SCD file includes, including Header,
Substation, Commu-nication, IED and DataTypeTemplates etc.;
S12, according to the data structure of pre-defined tree, the essential element for including by SCD file generates new structure tree;
S13, in new structure tree, inquire whole station cell device IP address list.Specifically, can according to
" Cmmunication " node, searching corresponding IED can get the IP address of this IED.
Wherein, the class of the data structure of predefined tree include: Substation, IEDNode, LDInstNode,
LN0Node, Smvcb-Node, GocbNode, DatasetNode and FCDA.
In the new structure tree of generation: Substation class is the root node of new structure tree, corresponding to SCD file
Substation element;IEDNode corresponds to the IED element of SCD file;LDInstNode corresponds to the LDevice of SCD file
Element;LNONode class corresponds to the LN0 element of SCD file;SmvcbNode class corresponds to the SampledVal- of SCD file
UeControl and SMV element includes 7 attributes, for storing the relevant configuration with controlling of sampling block and control block network settings
Information;GocbNode class corresponds to GSEControl the and GSE element of SCD file, includes 6 attributes, for storage and GOOSE
The relevant configuration information of the network settings of control block and control block;DatasetNode class corresponds to the DataSet member of SCD file
Element includes 2 attributes, and wherein numDataset is used for the number of log data set, and FCDAList is then the list of FCDA class;
FCDA class corresponds to the FCDA element of SCD file, for storing the Chinese description of corresponding data set member;IEDMap is
It is index, using IEDNode Ptr as the mapping of object that one of the attribute of Substation class, which is using iedName,.
It should be noted that IEC61850 specification only has " definite value area ", (definite value area corresponds to each under a certain determining operating condition
The set of definite value group), without being related to the concept of " definite value group ".
Under IEC61850 system, each definite value presses function division, and dispersion is defined under each LD.Definite value service model such as following table
Shown in 1:
Table 1
It is as follows that definite value services realization process:
(1) inquire definite value area information: the service needs return mechanism definite value area's number and currently runs area code.Inquire definite value area number
The NumOfSG realization for reading SGCB is serviced by mms " read ";The current operation area code of inquiry is read by mms " read " service
The ActSG of SGCB is realized.
(2) inquire value data: the service passes through the definite value sum of off-line arrangement, the mms variable name (Data of each definite value
Reference) and data type, definite value value is read by mms " Read " service one by one.
Preferably, further include soft pressing plate remote signalling information by the information that mms communication service is transferred in the present embodiment, and will adjust
The soft pressing plate remote signalling information taken is compared with the soft pressing plate remote signalling information that user inputs, and obtains pressing plate remote signalling information inspection knot
Fruit.
It should be noted that soft pressing plate remote signalling information include SV soft pressing plate remote signalling information, GOOSE soft pressing plate remote signalling information with
And function soft pressing plate remote signalling information.Pass through the soft pressing plate for inputting the soft pressing plate remote signalling information list for each device transferred and user
Remote signalling information list (can be excel form) is compared, and thinks that pressing plate information is normal if consistent, if inconsistent right
The alarm of pressing plate Information abnormity situation.
Specifically, pressing plate communication link status display is divided into graphic software platform and tabular is shown, table show pressing plate without
Needing configuration, communication state to need to configure lower can just see that both real-time status, graphic software platform pressing plate and communication state require to match
Set file support.
Data storage refreshes with table for showing pressing plate and link state, by each IED in parsing SCD file
Pressing plate and the relevant information of communication link specially parse data set according to some keywords, and wherein pressing plate information passes through matching
The data set of DSRELAYENA field, which extracts its all FCDA, in dataSetName is spliced into 61850 variables and ranks
Table;Communication link status information by look in FCDA FC be ST's and daName be that stval data set connects subsequently through network
Mouth receives data and is then matched according to 61850 variable names to update its state value for interface and refresh.
It preferably, further include the telemetering of whole station cell device by the information that mms communication service is transferred in the present embodiment
Information transfers the telemetering of whole station cell device by mms service after being that whole station cell device establishes mms communication respectively
Information, extract respectively and record every cell device three-phase electricity flow valuve Ia, Ib, Ic and three-phase voltage value Ua, Ub, Uc and point
Not Ji Suan three-phase residual current 3I0 and three-phase residual voltage 3U0, and three-phase residual current and three-phase residual voltage are set with user
Fixed threshold values is compared, and determines whether difference stream is normal.
In practical applications, protective relaying device self-checking function is mainly realized by log services.Day aims at IEC61850
In be defined as, orderly record in chronological order, such as have the logout of label and annotation.Log may be considered a circulation
Buffer area can rewrite old data.Be for client it is hiding, log is only a linear buffer area in terms of client,
Client can inquire LOG with EntryID and TimeOfEntry.IEC61850 log model is as shown in Fig. 2, device running log
Service model mainly contain device information, LD node as MMS service is instantiated, and content includes operation
The content of record includes the fields such as time of origin, anomalous content.
It preferably, further include the log of whole station cell device by the information that mms communication service is transferred in the present embodiment
Information, and analyzing the log information of whole station cell device is noted abnormalities information by log analysis, and to abnormal letter
Breath is alerted.
It preferably, further include that visualization control is carried out to SCD file in the present embodiment, the control of SCD file is divided into online
Two aspects of control and offline control:
(1) online control includes the following steps:
A) corresponding relationship of real time monitoring apparatus configuration file and SCD file version, is alerted when version is inconsistent, is needed
Adjust configuration file or SCD version.
B) such as protective device, measure and control device, MU and the intelligent terminal of the equipment in in-service monitoring substation are towards general right
The cyclic redundancy check that the transformer substation case (Generic Object Oriented Substation Event, GOOSE) of elephant uploads
The lower ETL estimated time of loading of (the CRC check code information for including in SCD file) and latest configuration.By comparing upgrading front and back
The device that it is influenced that the content of SCD finds out SCD file upgrading provides backup, inspection, update, recovery to provide instruction
Function.
By being managed online to SCD file, CRC check is carried out online, the lower ETL estimated time of loading of latest configuration is checked, realization
The control CRC of SCD file is extracted, the online GOOSE parsing of CRC, the parsing of lower dress event, and CRC is compared, anomalous event record
Function, and parsing result, comparison result etc. are shown by interface, user is sent out by the way that interface is open-and-shut
The CRC that the CRC and control which existing device uploads are extracted is inconsistent, which device repeated downloads configuration as shown in figure 3, by
Extract the devices such as route protection, bus protection, main transformer protection, combining unit, intelligent terminal, the measure and control device of scene operation
Cyclic redundancy check, is compared with the cyclic redundancy check in the SCD of archive, automatically finds that the cyclic redundancy check of those devices occurs
Variation, so that it is determined that configure changed device.
Further, the present embodiment also records the changed device of cyclic redundancy check, generates anomalous event library.
By during sqllite data-base recording substation operation with CRC is inconsistent, device repeats the lower historical record filled.Pass through
Data record is stored on disk, is guaranteed data security not easy to lose, history alarm and current is timely checked convenient for user
Warning information.
(2) offline control process includes the following steps:
B) increase CRC protection in SCD file of the off-line state to no CRC safeguard measure;Pass through the consistency ratio of CRC code
Right, output device configures the information comparison details report of upgrading report, SCD file upgrading.
As shown in figure 4, configuring the SCD file of whole station first in substation's configuration process, then exported by SCD file
CID file and under be filled in the device of substation field actual motion, complete instantiation.Substation practical installation and trial and
It during maintenance, inevitably to modify to whole station SCD configuration file, be compared by SCD file visualization and SCD
The work such as what function can be convenient visualize artificial check, and upgrading range defines, and CRC consistency determines, ensure that peace is adjusted
And maintenance work is smooth.
C) each IED device is calculated as by CRC and obtains its tetra- part GoosePub, GooseSub, SvPub, SvSub
Content.GoosePub: the Goose communications parameter of this end device, control block and its data set and FCDA for referring to.
GooseSub: the Goose communications parameter of terminal device, control block and its data set and FCDA for referring to.SvPub: local terminal
The Sv communications parameter of device, control block and its data set and FCDA for referring to.SvSub: the Sv of terminal device communicates ginseng
Number, control block and its data set and FCDA for referring to.
D) under off-line state, CRC comparison and thin is carried out to the SCD file of two different editions of the same substation
Section compares, and output bus enlarging report, system configuration upgrading report, the details of the inconsistent device of each CRC compare report for operation
Maintenance personnel checks before SCD upgrading, convenient for the coverage of its this clear upgrading.
E) to the management of the SCD file store at the multiple stations of multiple offices, any one substation is checked to operation maintenance personnel offer
The means in the old version library of SCD file, and by SCD file control CRC check and latest edition SCD information comparison,
Realize that SCD file checks and exports comparison report.
It should be noted that the present embodiment is by carrying out visualization control to SCD file, to SCD file in substation into
Row automatic comparison, analyzes the similarities and differences of SCD file different times version, while achieving to SCD file, it is ensured that peace is adjusted and fortune
Tie up the smooth of work.
Preferably, the present embodiment also arranges above-mentioned inspection result information homogeneous classification, and generates according to given format
Inspection report, as shown in Figure 5.The inspection reports that corresponding project has power transformation station name, monitoring time, interval numbers, protection class
Type.Inspection content includes sample information, poor stream, definite value verification, GPS clock synchronization, abnormality alarming signal, device CID configuration file.It adopts
The corresponding inspection result of sample information be it is normal/abnormal, difference flow corresponding inspection result be it is qualified/unqualified, definite value verification corresponds to
Inspection result be it is qualified/unqualified, the corresponding inspection result of GPS clock synchronization be it is normal/abnormal, abnormality alarming signal is corresponding to patrol
Examining result is with/without the corresponding option result of device CID configuration file is normal/abnormal.
As shown in fig. 6, the present embodiment also discloses a kind of substation relay protection cruising inspection system, which is characterized in that including
Server 10 and IEC61850mms client 20, server 10 access substation's station level network, and server 10 includes obtaining mould
Block 11, starting module 12 transfer module 13 and result determining module 14:
The SCD file that module 11 is used to obtain substation is obtained, and SCD file is parsed, obtains whole station wall
The IP address list of device;
Starting module 12 is for starting IEC61850mms client, according to IP address list, successively with the interval in whole station
Layer device establishes mms communication service;
Module 13 is transferred for transferring the protection fixed value information of whole station cell device by mms communication service;
As a result determining module 14 is for comparing the protection fixed value information that the protection fixed value information transferred is inputted with user
Compared with obtaining relay protection constant value inspection result.
Preferably, the acquisition module includes acquiring unit, structure tree generation unit and searching unit;
Acquiring unit is used to obtain the SCD file of substation;
Structure tree generation unit is used for the data structure according to pre-defined tree, carries out to the SCD file of the substation
Processing, generates new structure tree;
Searching unit is used in new structure tree, is searched the connection relationship of communication network, is obtained the whole station wall
The IP address list of device.
It should be noted that being illustrated in the data structure of pre-defined tree and the new structure tree and the above method of generation
It is identical.It is analyzed based on SCD file and realizes relay protection constant value verification, improve the verification efficiency of relay protection device definite value, solution
The quality of the problem of inefficiency of having determined, inspection are largely increased, while intelligent inspection system avoids human factor and causes
The security risk of power grid is eliminated in the generation of the case where personnel's missing inspection, false retrieval, guarantees the safe and stable operation of power grid.
Preferably, server 10 uses embedded industrial control host, executes the above method using software, which uses
Windows platform application develops environment Visual Studio exploitation, such as VS2010 version.
Preferably, telemetry intelligence (TELINT) list and soft pressing plate remote signalling letter that module 13 is also used to transfer whole station cell device are transferred
Cease list.Correspondingly, the soft pressure of as a result determining module 14 is also used to transfer soft pressing plate remote signalling information list and user's input
Plate remote signalling information list is compared, and obtains soft pressing plate inspection result;And every cell device is extracted according to telemetry intelligence (TELINT)
Three-phase electricity flow valuve and three-phase voltage value, and calculate three-phase residual current and three-phase residual voltage accordingly, and by the remaining electricity of three-phase
Stream and three-phase residual voltage are compared with the threshold value of setting respectively, determine whether difference stream is normal, and as telemetry intelligence (TELINT)
Inspection result.
Preferably, server 10 further includes SCD file control module 15, and SCD file control module 15 is included in spool
Unit and offline control unit are controlled, online control unit includes monitoring subelement, parses and check subelement and anomalous event library
Generate subelement.Wherein:
Subelement is monitored for online control unit for monitoring device configuration file pass corresponding with SCD file version
System;The CRC code (being derived from SCD) and latest configuration that in-service monitoring protective device, measure and control device, MU and intelligent terminal GOOSE are uploaded
Lower ETL estimated time of loading;Finding out SCD file upgrading, influenced device provides backup, inspection, update, recovery to provide instruction
Function.
Parsing checks that subelement is checked for realizing online CRC check and lower ETL estimated time of loading: realizing the control of SCD file
CRC is extracted, the online goose parsing of CRC, the parsing of lower dress event, and CRC is compared, and the function of anomalous event record, user passes through boundary
The CRC that face open-and-shut can find that the CRC that send and control are extracted on which device is inconsistent, which device, which has repeatedly descended, matches
It sets, as shown in figure 4, cruising inspection system extracts the live route protection run, bus protection, main transformer protection, combining unit, intelligence eventually
The cyclic redundancy check of the devices such as end, measure and control device is compared with the cyclic redundancy check in the SCD of archive, automatically finds those
The cyclic redundancy check of device is changed, so that it is determined that configuring changed device.
Anomalous event library generate subelement be used for by during the managing and control system operation of sqllite data-base recording with
CRC is inconsistent, device repeats the lower historical record filled, and data are timely checked convenient for user and gone through there are that will not lose on disk
History alarm and current warning information.
The offline control unit includes that CRC safeguard measure increases subelement, uniformity comparison subelement, CRC calculating
The offline comparison subunit of unit, SCD and SCD file store manage subelement.Wherein:
CRC safeguard measure increases subelement and is used to increase CRC protection for the SCD file of no CRC safeguard measure;
Uniformity comparison subelement is used for the uniformity comparison by CRC code, and output device configures upgrading report, SCD text
The information comparison details report of part upgrading, as shown in figure 5, configuring the SCD file of whole station first in substation's configuration process, so
Afterwards by SCD file export CID file and under be filled in the device of substation field actual motion, complete instantiation.In substation
Practical installation and trial and maintenance during, inevitably to modify to whole station SCD configuration file, pass through SCD text
What part visualization and SCD comparison function can be convenient visualize artificial check, and upgrading range defines, and CRC consistency determines
Equal work, ensure that peace adjust and maintenance work it is smooth.
CRC computation subunit is used to obtain its GoosePub, GooseSub, SvPub, SvSub tetra- for each IED device
Partial content.GoosePub: the Goose communications parameter of this end device, control block and its data set and FCDA for referring to.
GooseSub: the Goose communications parameter of terminal device, control block and its data set and FCDA for referring to.SvPub: local terminal
The Sv communications parameter of device, control block and its data set and FCDA for referring to.SvSub: the Sv of terminal device communicates ginseng
Number, control block and its data set and FCDA for referring to.
The offline comparison subunit of SCD is used to carry out CRC comparison to the SCD file of two different editions of the same substation
And details compares, output bus enlarging report, system configuration upgrading report, the details of the inconsistent device of each CRC compare report
It is checked before SCD upgrading for operation maintenance personnel, convenient for the coverage of its this clear upgrading.
SCD file store manages management of the subelement for the SCD file store to the multiple stations of multiple offices, and operation maintenance personnel is given to provide
The means for checking the old version library of the SCD file of any one substation, also achieve SCD file control CRC check, with
And the information comparison with the SCD of latest edition, and export comparison report.
Preferably, server 10 further includes inspection report generation module 16, is used for inspection result information homogeneous classification
It arranges, and generates inspection report according to given format, as shown in Figure 6.
A kind of substation relay protection method for inspecting and system disclosed in the present embodiment have the following beneficial effects:
1) routing inspection efficiency for improving substation inspection, realizes the patrol worker of all protective devices in one point of substation automatically
Make.
2) side that relay protection constant value (definite value, SV soft pressing plate, GOOSE soft pressing plate, function soft pressing plate) is intelligently checked is realized
Formula improves the verification efficiency of relay protection device definite value, avoids verifying halfway situation caused by because of human factor.
3) realize relay protection device operation data sampling compare, timely discovering device there may be the problem of, improve
The safety of equipment operation.
4) that realizes protective relaying device self-test content has access to inspection, and exception reporting is extracted and preserved, analyzes self-test in time
Exception reporting.
5) the visualization control of SCD file is realized, it can be to the automatic comparison of SCD file in substation, when analyzing SCD difference
The similarities and differences of phase version, while to the archive of SCD file, extraction, change can be managed effectively.
6) inspection report is automatically generated, user is facilitated to check.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of substation relay protection method for inspecting characterized by comprising
The SCD file of substation is obtained, and SCD file is parsed, obtains the IP address list of whole station cell device;
According to IP address list, mms communication service successively is established with the cell device in whole station;
The protection fixed value information of whole station cell device is transferred by mms communication service;
The protection fixed value information transferred is compared with the protection fixed value information that user inputs, obtains relay protection constant value inspection
As a result.
2. substation relay protection method for inspecting as described in claim 1, which is characterized in that further include:
Soft pressing plate remote signalling information is transferred by the mms communication service;
The soft pressing plate remote signalling information transferred is compared with the soft pressing plate remote signalling information that user inputs, obtains pressing plate remote signalling information
Inspection result.
3. substation relay protection method for inspecting as described in claim 1, which is characterized in that further include:
Pass through the log information stated mms communication service and transfer the whole station cell device;
The log information of the whole station cell device is analyzed, log information inspection result is obtained.
4. substation relay protection method for inspecting as described in claim 1, which is characterized in that further include:
Monitor the configuration file of the whole station cell device and the corresponding relationship of the SCD file version in real time;
The configuration file of the whole station cell device or the SCD file version are not adjusted to when corresponding in version.
5. substation relay protection method for inspecting as claimed in claim 4, which is characterized in that further include:
Obtain the lower ETL estimated time of loading of cyclic redundancy check and each device latest configuration file that the whole station cell device uploads;
According to CRC code and the lower ETL estimated time of loading of each device latest configuration file, searches the SCD file and upgrade influenced device
Information.
6. substation relay protection method for inspecting as claimed in claim 4, which is characterized in that further include:
Judge whether the SCD file has cyclic redundancy check protection;
If it is not, then increasing cyclic redundancy check for the SCD file, the SCD file is upgraded.
7. substation relay protection method for inspecting as claimed in claim 4, which is characterized in that exist at least in the substation
When the SCD file of two different editions, further includes:
The SCD file of at least two different editions is analysed and compared, comparison result is obtained.
8. such as the described in any item substation relay protection method for inspecting of claim 1-7, which is characterized in that the acquisition power transformation
The SCD file stood, and SCD file is parsed, obtain the IP address list of whole station cell device, comprising:
The SCD file of substation is obtained, and according to the data structure of pre-defined tree, generates new structure tree;
In new structure tree, the connection relationship of communication network is searched, obtains the IP address list of the whole station cell device.
9. a kind of substation relay protection cruising inspection system, which is characterized in that including server and IEC61850mms client, clothes
Device of being engaged in accesses substation's station level network, and server includes obtaining module, starting module, transferring module and result determines mould
Block:
The SCD file that module is used to obtain substation is obtained, and SCD file is parsed, obtains whole station cell device
IP address list;
Starting module is for starting IEC61850mms client, according to IP address list, successively with the cell device in whole station
Establish mms communication service;
Module is transferred for transferring the protection fixed value information of whole station cell device by mms communication service;
As a result determining module is obtained for the protection fixed value information transferred to be compared with the protection fixed value information that user inputs
Relay protection constant value inspection result.
10. substation relay protection cruising inspection system as claimed in claim 9, which is characterized in that the acquisition module includes obtaining
Take unit, structure tree generation unit and searching unit;
Acquiring unit is used to obtain the SCD file of substation;
Structure tree generation unit is used to handle the SCD file of the substation according to the data structure of pre-defined tree,
Generate new structure tree;
Searching unit is used in new structure tree, is searched the connection relationship of communication network, is obtained the whole station cell device
IP address list.
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CN112527551A (en) * | 2020-12-10 | 2021-03-19 | 许继集团有限公司 | Method and system for improving data interaction reliability of internal outlet of relay protection device |
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Application publication date: 20190308 |