CN102510127B - Method for unifying models of on-line monitored first and secondary equipment of power grid - Google Patents
Method for unifying models of on-line monitored first and secondary equipment of power grid Download PDFInfo
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Abstract
The invention relates to a method for unifying models of on-line monitored first and secondary equipment of a power grid. The method comprises the following steps: utilizing an IEC61850 logic node LN to perform physical modeling on the on-line monitored secondary equipment: in the same device using a sensor to measure, LN embodiments are newly established for data of different measured objects; adding a uri (uniform resource identifier) attribute and a devid attribute to each LN; applying IEC68150 LN to modeling the on-line monitored secondary equipment; utilizing the LN to expand the attribute uri so as to realize the modeling related and unified with the first equipment; and utilizing the LN to expand the attribute devid so as to realize the grouping of measure points of the secondary equipment under the first equipment. According to the method, an IEC61970CIM scheduling model, an e-format measurement model and the secondary equipment (online monitoring device) are automatically introduced and spliced, so as to generate a complete once model and a measuring model. On the basis of the complete once model and the measuring model, the comprehensive information display, inquiry and historic curve display are carried out.
Description
Technical field
The present invention relates in the electrical Equipment On-Line Monitoring System integration of model and data between 61970 models of power scheduling IEC, data and on-line monitoring IEC 61850 secondary devices and integrated.
Background technology
Equipment monitoring system need to access model and the data of different system, and carries out integration and the unification of model and data, thereby provides following technological means for the on-line monitoring of power equipment, state estimation, maintenance, defect management etc.:
1. real-time and historical data collection, storage, analysis, supervision, the displaying of status information of equipment, the functions such as alarm, comprehensive inquiry
2. provide the data basis for senior application functions such as equipment state assessments
Real-time model and metric data that power equipment remote monitoring and diagnosis center need to gather comprise:
1). from the data of sectional center EMS system acquisition, the model that comprises all 110kV above transformer stations of this area, the station primary connection figure of factory and remote measurement, remote signalling data (comprise voltage, electric current, active power, reactive power, circuit breaker position, but do not comprise the equipment on-line monitoring data disconnecting link position etc.).
Ground mode transfer type adopts IEC 61970 models, is mainly used in describing electrical network primary equipment model.
The real-time measurement value of transferring at ground adopts e form measurement file mode to transmit, and uploads once in per 3 minutes.
The e form measures file: be on the abstract basis of object-oriented of IEC 61970-301 electric power system public data MODEL C IM (Common Information Model), and a kind of new and effective electric power system data markup language that is grown up for the efficient defective of CIM when being described in the XML mode.Belong to state's net electric power standard.
2). equipment on-line monitoring real-time measurement data
IEC 61850 is adopted in equipment on-line monitoring real-time measurement data modeling and communication, and the substation object model of IEC 61850 mainly divides the three basic object hierarchy, describes with the substation configuration description language SCL of XML-based.
● transformer station model: describe the interrelated of primary equipment and their annexation;
● IED mounted cast: described the model of substation secondary intelligent electronic device and function etc.;
● model of communication system: described the object model relevant with communication.
In the former power equipment monitoring remote center, IEC 61850 is used for each transformer station and upgrades online monitoring variable measured value just as secondary device model and Communication Model.Need to transfer between IEC 61970 full models and the on-line monitoring IEC 61850 local observation point models on ground now and set up mapping relations, thereby each can be used relevant information, the unified full model that arrives of data.Thereby the unified of the information of carrying out showed, processed and inquiry.
Because the different operating group of IEC defines the information exchange standard between the different application sets, defined the different interface standard between the dissimilar electric power application, be applicable to end EMS system of main website such as IEC 61970 series standards, IEC 61968 is applicable to the application program of distribution automation system, and IEC 61850 has proposed a kind of public communication standard, by a series of standardization to equipment, make its output that forms a standard, realize the seamless link of system in the transformer station.Each of these IEC standards is the information model of definition oneself separately, such as IEC 61970/61968 CIM model and IEC 61850 SCL models.Therefore, even in the scope of IEC TC57 oneself, when using transparent framework, one of imagination also needs a complexity and widely mapping.
Must progressively carry out the integrated research of secondary and building-up work for this reason, build unified data model and the data platform of the whole network, factory's station end realize uniform data collection, unified model, unified standard, with the unified data exchange interface of scheduling, and safeguard with dispatching terminal is unified, realize factory's station source maintenance, the whole network is shared, and the main website end can generate the dispatching terminal model automatically, realizes the non-maintaining of main website.Realize the organic combination of application system and function at dispatching terminal, realize resource-sharing, improve overall application level, to satisfy the demand of modern large power network safety operation, for an electrical secondary system realizes that unified monitoring provides theory and technical foundation.
Summary of the invention
Purpose of the present invention: provide powernet monitoring once with the method for secondary device unified model, thereby integrate 61970 grid equipment models of scheduling IEC, metric data and the IEC of transformer station 61850 secondary device monitoring device model and online monitoring data, carry out on this basis data unified show, inquiry, and provide the data basis for applied analysis functions such as grid equipment state early warning.
Solution of the present invention: powernet monitoring once with the method for secondary device unified model, it is characterized in that: power equipment remote monitoring and diagnosis center at first uses IEC61850 logical node (LN) that the secondary device of on-line monitoring is carried out physical modeling; Then automatically import model and the file of primary equipment secondary device, import and generate secondary device on-line monitoring real-time measurement data; Secondary device model with on-line monitoring carries out related unified with scheduling model again.
1. use IEC 61850 logical nodes that on-Line Monitor Device (secondary device) is carried out the device that physical modeling uses transducer to measure, corresponding LN example of data palpus that each transducer gathers;
The data of different measured object are answered newly-built LN example among the same IED, comprise not homophase monitoring of switch.
Each LN is increased a Uniform Resource Identifier URI attribute and a DEVID attribute, by the on-line monitoring secondary device being used IEC68150 LN modeling, use LN extended attribute URI (unified resource description) to realize and the related and unified Modeling of primary equipment (circuit breaker Breaker, transformer PowerTransformer, bus BusbarSection), use LN extended attribute DEVID (device identification) to realize the secondary device measuring point grouping under the primary equipment.
2. automatically import model and the file of primary equipment and secondary device
(1) automatically imports IEC 61970 CIM ground mode transfer types
Power equipment remote monitoring and diagnosis central computer server is connected by network with each local level control centre computer server.The file format that the local level control centre provides according to this programme, when this area electric network model changes, generate an XML file based on IEC61970, (calling the CIM model file in the following text), file is called " Netherlands _ cim.xml ", and reach power equipment remote monitoring and diagnosis central computer server with ftp (File Transfer Protocol, file transfer protocol (FTP)) in form.As shown in Figure 1:
Whether remote center's model file imports daemon cycle monitoring CIM model file changes, and startup model importing program is carried out the model importing if model file changes, checking and issue.Realize that the CIM model file imports non-maintaining flow process automatically.
It is the same with the mode that the CIM model file imports employing automatically that scheduling e form measures the automatic importing of file, no longer describes in detail.
(2) automatically import the IEC 61850 SCD files that are used for describing electrical network primary equipment model
Power equipment remote monitoring and diagnosis central computer server is connected by integrated data network with each transformer station of the whole province as shown in Figure 2, each transformer station erection unit Monitoring Data centralised arrangement integrated data processing unit, be responsible for concentrating all primary equipment monitoring harvester data in this transformer station, and directly be sent to remote center's front server by IEC61850 mms communication standard.
When main website and each transformer station integrated data processing unit communication, its 61850 traffic model can adopt off-line SCD file set up or directly generate by the communication calling is online, when communication link is just logical, the SCD file of at first calling the integrated data processing unit to generate, check its version information, if version changes in version information and the main website database, think that then substation integrated data processing unit communication model changes, need to again call traffic model, communicate again interactive database, otherwise think that traffic model does not become, directly adopt the existing traffic model direct communication of main website.The consistency of traffic model and the non-maintaining flow process of master station communication model when having guaranteed that by this flow process main website communicates by letter with integrated data processing unit, substation IEC61850.
The beneficial effect that technical solution of the present invention is brought: the present invention has carried out auto-increment to IEC 61970 CIM scheduling models, e form scheduling measurement model and IEC 61850 secondary models (on-line monitoring device model) and has imported and integrate, thereby first and second complete scheduling model data, the unified Modeling of monitoring model online data have been formed, for types of applications, overview display etc. provides the foundation.The present invention provides total solution to the secondary modeling of IEC61850 on-line monitoring equipment and with the integration of IEC 61970CIM model, for the Standardization Construction of equipment on-line monitoring system provides useful practice and experience.
Description of drawings
Fig. 1 is that the CIM model file is uploaded to power equipment remote monitoring and diagnosis central computer server block diagram;
Fig. 2 is the block diagram of equipment on-line monitoring of the present invention system;
Fig. 3 is the related of a model of on-line monitoring IEC 61850 observation point models and CIM 61970 scheduling, forms a unified model and measurement model schematic diagram;
Fig. 4 is IEC 61850 data models;
Fig. 5 is that the primary equipment object unique identifier obj:ID of IEC 61970 ground mode transfer types is complementary;
Fig. 6 is 4 monitoring of equipment device type codings;
Fig. 7 uses LN extended attribute devid to realize the secondary device measuring point grouping schematic diagram under the primary equipment.
Embodiment
The present invention is described in more detail below in conjunction with the drawings and specific embodiments.
1. IEC61970 CIM scheduling model, E form measurement file and on-line monitoring IEC 61850 SCD files import automatically
The E form measures file and upgraded once in 3 three minutes, and CIM scheduling model and 61850SCD file have renewal just to be uploaded to remote center, belongs to not timing and upgrades.Whether remote center need to ceaselessly monitor these files and change, and automatically imports incremental update if monitor the background program that changes.
2. CIM scheduling model, E form measure file and the modeling of IEC 61850SCD file consolidation, automatic Mosaic
Finish the related of a model of on-line monitoring IEC 61850 observation point models and CIM 61970 scheduling, form a unified model and measurement model.Schematic diagram such as Fig. 3:
3. synthetic display, inquiry
Carry out the unified displaying that the station figure of factory, e measure file and online monitoring data at the station figure of primary connection factory:
1) showing in real time mode transfer type measuring value, on-Line Monitor Device communication state, the measuring value of on-Line Monitor Device on each station figure of factory.
2) various inquiries, curve displaying etc. can be carried out, each parameter result of secondary on-line testing can be shown on the screen.
2, use IEC 61850 LN logical nodes that on-Line Monitor Device (secondary device) is carried out physical modeling: the device that uses transducer to measure, corresponding LN example of data palpus that each transducer gathers; The data of different measured object are answered newly-built LN example among the same IED, comprise not homophase monitoring of switch.
In Guangdong Province's monitoring of equipment remote center project, eight class on-line monitoring secondary devices have been carried out IEC 61850 modelings:
. transformer monitoring SPTR
. insulating monitoring SINS
. monitoring and diagnosis SPDC is put in office
. circuit breaker SCBR
. lightning arrester SLAR
. environmental monitoring SENV
. insulating gas monitoring SIMG
. iknsulating liquid monitoring SIML
Put monitoring as example take typical office, its IEC 61850 data models are shown in Figure 4:
Illustrate: 1) by LN (logical node) secondary on-line monitoring equipment is carried out IEC 61850 standardization modelings
2) by DO (device object) secondary on-line monitoring equipment measuring point is carried out the standardization modeling
3) on-line monitoring IEC 61580 secondary device models and IEC 61970 CIM scheduling model unified Modeling technology
Each LN is increased a Uniform Resource Identifier URI attribute and a DEVID attribute, and URI and DEVID extension rule are as follows:
The unification of expansion name space is ext in a, the SCL file;
The element of expanding in b, the SCL file is: uri and devid;
The electrical network primary equipment that c, uri attribute description on-line monitoring equipment are monitored is with the position encoded description of 25 bit functions;
D, devid describe online monitoring equipment position of function, with 21 on-line monitoring Coding and descriptions.
Example:
＜LN desc=" supervision of 110kV mother 100 switching gas " inst=" 1 " lnClass=" SIMG " lnType=" SIMG " ext:uri=" 0306B120001250EAG10BAC002 " ext:devid=" 0312B12000042A3840001 "
Illustrate:
1) uri: be 25 bit function positions of primary equipment, be complementary with the primary equipment object unique identifier obj:ID of IEC 61970 ground mode transfer types, see Fig. 5:
In the technical program, we carry out related with three class primary equipment CIM objects:
.cim:Breaker (circuit breaker)
.cim:PowerTransformer (transformer)
.cim:BusbarSection (bus)
2) coding of devid:21 position on-line monitoring secondary device is the unique identification of on-line monitoring equipment, and on-line monitoring equipment is composed as follows:
4 equipment Serial Numbers of 13 factory's station 4 monitoring equipment type codings of functional location code
① ② ③
1. 13 factories station functional location codes: make land used mode transfer type 13 bit functions position encoded (standing to factory)
2. 4 monitoring of equipment device types are encoded, and stipulate such as Fig. 6:
3. 4 equipment Serial Numbers: represent on-Line Monitor Device equipment sequence code
4 monitoring equipment type codings have added 4 the equipment Serial Number unique identifications on-line monitoring equipment in the station.
By the on-line monitoring secondary device being used IEC68150 LN modeling, use LN extended attribute uri to realize and the related and unified Modeling of primary equipment (Breaker, PowerTransformer, BusbarSection), use LN extended attribute devid to realize the secondary device measuring point grouping under the primary equipment.As shown in Figure 7.Illustrate:
Station, 500kV Pengcheng, Shenzhen #3 main transformer has four on-Line Monitor Device, and wherein A2982001's is minute producer in the Henan, and other three A2982206, A2982207, A2982208 are Shenzhen special fast producers difficult to understand.A2982001 has 14 remote signalling amounts, and A2982206, A2982207, A2982208 have respectively 3 remote signalling amounts.
Make up by the unified of an above secondary model and measuring point, show the monitoring information of each equipment at Pengcheng factory station figure picture.
Claims (4)
- Powernet monitoring once with the method for secondary device unified model, it is characterized in that: power equipment remote monitoring and diagnosis center at first uses IEC61850 logical node LN that the secondary device of on-line monitoring is carried out physical modeling: the device that uses transducer to measure, corresponding LN example of data palpus that each transducer gathers, the data of different measured object are answered newly-built LN example in the same device; Then each LN is increased a Uniform Resource Identifier uri attribute and a devid attribute, the uri attribute description on-line monitoring equipment electrical network primary equipment of monitoring wherein, devid describes online monitoring equipment position of function; By the on-line monitoring secondary device is used the IEC68150LN modeling, use LN extended attribute uri to realize and the related and unified Modeling of primary equipment again, use LN extended attribute devid to realize the secondary device measuring point grouping under the primary equipment;Finish the IEC61850 logical node secondary device of on-line monitoring is carried out after physical modeling and each LN increase a Uniform Resource Identifier uri attribute and devid attribute, automatically import model and the file of primary equipment and secondary device; Import and generate secondary device on-line monitoring real-time measurement data; Again with the secondary device scheduling model of on-line monitoring with carry out related unified with the primary equipment scheduling model.
- Powernet as claimed in claim 1 monitoring once with the method for secondary device unified model, it is characterized in that: power equipment remote monitoring and diagnosis central computer server is connected by network with each local level control centre computer server, when the local level control centre changes at this area electric network model, generate an XML file based on IEC61970, and reach power equipment remote monitoring and diagnosis central computer server with ftp in form.
- Powernet as claimed in claim 1 monitoring once with the method for secondary device unified model, it is characterized in that: the metric data of importing is that the E form measures file, regularly upgrade, the SCD file of CIM scheduling model and IEC61850 has renewal just to be uploaded to remote center, belongs to not timing and upgrades; Whether remote center need to ceaselessly monitor these files and change, and automatically imports incremental update if monitor the background program that changes.
- Powernet as claimed in claim 1 monitoring once with the method for secondary device unified model, it is characterized in that: finish once with the secondary device Unified Model after, carry out the station figure of factory, e at the station figure of primary connection factory and measure the unified of file and online monitoring data and show.
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