CN101710735A - Sharing modeling method of intelligent substation and primary station - Google Patents
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- 238000004587 chromatography analysis Methods 0.000 claims description 2
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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
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Abstract
The invention relates to a sharing modeling method of an intelligent substation and a primary station. In the method, panoramic data are converted into an object model in accordance with IEC 61850 standards by acquiring panoramic data which comprehensively reflect equipment states and operating states of the substation such as substation steady states, temporary states, dynamic data, equipment states, images and the like acquired by various sensors; a primary station primary equipment model in accordance with a substation secondary equipment model of IEC 61850SCL and IEC 61970CIM modeling standards carries out mutual conversion mapping to realize unified modeling of primary equipment and secondary equipment of an electric power system; and a GID open application program interface in accordance with IEC 61970GID standards is provided. With the method, the substation unifies and simplifies a data source of the substation to form unique basic information based on the same section; and the interaction of internal information and external information of the substation is realized by unifying standard modeling; the seamless sharing of plant station information of the intelligent substation and an automation system of the primary station are realized; and the information of a primary station terminal and a plant station terminal for scheduling is free from maintenance. The method is suitable for sharing modeling of the intelligent substation and the primary station.
Description
Technical field
Modeling method is shared by the present invention's a kind of intelligent substation concerning foreign affairs and main website, belongs to the power system automation technology field.
Background technology
Intelligent grid clearly proposes need to realize organically blending of flow of power, information flow, Business Stream.Transformer station as grid nodes at first just need replenish this three stream information, improve and standardization, satisfies the real-time requirement of all kinds of clients of intelligent grid, and also will there be organically blending of flow of power, information flow, Business Stream in transformer station.Therefore, intelligent substation is for intelligent grid, and primary is will replenish the needed flow of power of intelligent grid, information flow, Business Stream information, perfect, standardization, brings in access for each client of intelligent grid.For this reason, at first to realize the unified management and the modelling of all data, set up transformer station's basic data platform in transformer station.Simultaneously, in the face of all kinds of senior application of intelligent grid, should strengthen the research dynamics that improves digitized degree.Target data, resource management data during as: equipment running status, band, insert the application of data, electric network model data etc.
IEC61850 substation communication network and system protocol system standard are based on unique international standard of the electric substation automation system of universal network platform, and it has changed the system that the enclosed structure of present electric substation automation system makes it to become open and standard.
Transformer substation communication standard IEC 61850 is one of bases of Future Power System seamless communication system of systems standard, and adopts IEC61850 to realize that transformer station's informationization, interactive standardsization are the essential options of the automation of transformation substations, also is the essential option of intelligent grid; The information that transformer station uploads is according to IEC 61850 SCL, and the main station system of following IEC 61970 common information MODEL C IM modeling standards is carried out the mapping of CIM electric power resource object, need to change mutually mapping in the actual engineering, that is to say, need to solve the shared modeling problem of intelligent substation and main website.
Document 1 " utilizing the power remote real time data exchange new method of IEC 61850/MMS " is studied IEC61850 being applied to power remote realization of Communication method, proposes network configuration and traffic model based on the telecontrol system of IEC 61850 and manufacturing message specification.Document 2 " utilizing the power remote real time data exchange new method of IEC 61850/MMS " is analyzed some defectives that exist in the existing Operation of Electric Systems communication protocol, study IEC 61850 being applied to power remote realization of Communication method, propose network configuration and traffic model based on the telecontrol system of IEC 61850 and manufacturing message specification.But above-mentioned two literary compositions all do not relate to the shared modeling problem of intelligent substation and main website.
Summary of the invention
The objective of the invention is, provide a kind of intelligent substation and main website to share modeling method, transformer station will unify and simplify the data source of transformer station, formation is based on uniqueness, the consistency Back ground Information of same section, realize information interaction and information sharing inside and outside the transformer station by unified standard, unified Modeling, many cover isolated systems in traditional transformer station can be integrated into based on the service application on the information sharing basis; The seamless of station wiring diagram, electric network model and the Information Monitoring of realization intelligent substation and main website automated system shared, and scheduling station end and factory's station client information are non-maintaining, improve automatization level.
The present invention is achieved by the following technical programs:
1, the panorama data that comprehensively reflect substation equipment state and operating condition by various sensor acquisition to transformer station's stable state, transient state, dynamic data and equipment state, image etc.; And follow IEC 61850 modeling rules, the panorama data transaction is become to meet the object model of I EC 61850 standards.
Promptly adopt the privately owned communication protocol of each manufacturer, obtain the private data that heterogeneous power quality monitoring device is gathered; Follow IEC 61850 modeling rules, convert private data to meet the IEC61850 standard power quality data object model, the mapping relations between the protocol semantics are converted into separately mapping relations with IEC61850.
2, the substation secondary device model that will follow IEC 61850 SCL (transformer station's configuration language) is changed mapping mutually with the main website primary equipment model of following IEC 61970 CIM (common information model) modeling standard, realizes electric power system first and second equipment unified Modeling.
In order to coordinate IEC 61850 and IEC 61970 standards, according to the mapping rule, IEC 61850 models are mapped to unified IEC 61970 CIM data formats, promptly adopt IEC 61850 will become unified CIM data format, to satisfy requirement integrated between different system, the monitoring equipment from the data conversion of dissimilar equipment.
The inheritance of Equipment (equipment) and IEC61850GeneralEquipment (common apparatus) allows to use I EC 61850 facility informations expansion CIM equipment.Relation between IEC61970Measurement (measurement) and the IEC61850DataAttribute (data attribute) allows CIM measurement amount is mapped to the value of IEC 61850 object models.
In the CIM model, PowerSystemResource (electric power system resource) is made up of one or more measurements (measurement), and measurements (measurement) comprises one or more measurement values (measuring value).The measurements (measurement) of PowerSystemResource (electric power system resource) is divided into polytype by MeasurementType (measurement type).MeasurementType.name in the CIM model (measurement typonym) is by the IEC61970 definition, and MeasurementType.aliasName (measuring the type another name) is defined by IEC61850.
3, follow IEC 61970GID (general-purpose interface definition) standard, GID is provided open application interface.
According to the difference of function, the GID interface interface that is divided three classes again is respectively: (a) real-time data access interface (DAIS); (b) warning and event interface; (c) historical data access interface (HDAIS).Accordingly, the server of realizing this three class interface respectively just is called DA server, AE server and HDA server.
The present invention is by standardized digital information, and panorama data acquisition and information height are integrated in the realization transformer station.The panorama data not only comprise the electric parameters of tradition " four is distant ", also comprise facility information (the winding deformation situation of transformer, chromatography result, cooling heat radiation system situation, the situation of the action frequency of circuit breaker, transmission mechanism energy storage situation, drop-out current, and environmental information, image information etc.
The present invention can change the monitoring equipment of all non-IEC 61850 in the subsystem of substation by stipulations, the unified IEC 61850 that externally provides serves, and realizes sharing of various system resources, reduces the system monitoring cost.
The present invention adopts the unified naming rule of the overall situation according to resource, the substation secondary device model of following IEC 61850SCL is changed mapping mutually with the main website primary equipment model of following IEC 61970CIM modeling standard, electric power system first and second equipment is carried out unified Modeling, realize seamless communication between intelligent substation and the main website.
The present invention's beneficial effect compared with prior art is 1. transformer station's stable state, transient state, dynamic data and equipment state, image etc. can be reflected comprehensively the panorama data of substation equipment state and operating condition realize data sharing; 2. the panorama data of transformer station can be converted to data object based on IEC 61850 standards; 3. the substation secondary device model of following IEC 61850SCL (transformer station's configuration language) is seamless spliced with the primary equipment model of following IEC61970CIM (common information model); 4. based on the remote service interface of IEC 61970GID (general-purpose interface definition), the data of collection can be obtained and analyze to the third-party analysis program very easily, for correlative study work is provided convenience, disposes flexibly, and maintenance cost is low.
The inventive method is applicable to the shared modeling of intelligent substation and main website.
Description of drawings
Fig. 1 is a flow chart of data processing schematic diagram of the present invention;
Fig. 2 is the mapping schematic diagram between private data and IEC 61850 data;
Fig. 3 is IEC 61850 models and IEC 61970 model splicing schematic diagrames;
Fig. 4 is the mapping schematic diagram between IEC 61850 models and IEC 61970 models;
Fig. 5 is a specific implementation schematic diagram of the present invention.
Embodiment
Fig. 1 is the flow chart of data processing schematic diagram that modeling method is shared by intelligent substation and main website.As shown in Figure 1, adopt the privately owned communication protocol of each manufacturer, obtain the panorama data of reflection substation equipment state and operating condition comprehensively such as transformer station's stable state, transient state, dynamic data and equipment state that various sensor acquisition arrive, image, follow IEC 61850 modeling rules, the panorama data transaction is become to meet the object model of IEC 61850 standards; Adopt the unified naming rule of the overall situation according to resource, under unified semantic definition, SCL (substation configuration description language) model of substation secondary device (equipment such as protection, observing and controlling) and the electrical network CIM (common information model) of main website primary equipment (transformer station, circuit, load etc.) are stitched together, set up first and second incidence relation; According to the mapping rule, the substation secondary device model of following IEC 61850 SCL is changed mapping mutually with the main website primary equipment model of following IEC 61970 CIM modeling standards, realize electric power system first and second equipment system standard, GID is provided open application interface.
Because the proprietary protocol of field apparatus is signal-oriented point table, linear and plane mostly at present, and a modeling; The data model of following IEC 61970 GID IEC 61850 is object-oriented and solid, just there be the transfer process of proprietary protocol to IEC 61850 data models in this, relate to linear signaling point table, according to the object-oriented way of IEC 61850 process of modeling again, this is a kind of process from the plane to the solid, as shown in Figure 2.
Fig. 3 is the model splicing schematic diagram.Adopt the unified naming rule of the overall situation according to resource; under unified semantic definition; the SCL model of substation secondary device (equipment such as protection, observing and controlling) and the electrical network CIM model splicing of main website primary equipment (transformer station, circuit, load etc.) are got up, set up a secondary incidence relation.
Fig. 4 is according to the mapping schematic diagram between mapping rule realization IEC 61850 models and the IEC 61970 CIM models.As shown in Figure 5, comprise IdentifiedObject.name under the LNode, three of LNode.type and LNode.MemberOf_LnodeContainer, wherein the rdf:resource of LNode.MemberOf_LNodeContainer back represents the concrete equipment that this Lnode (logical node) is associated.
Also comprise three under the Data, be respectively IdentifiedObject.name, Data.type and Data.MemberOf_LNode, what the rdf:resource of Data.MemberOf_LNode back wherein represented is the associated logical node of this Data (data type).
Comprise DataAttribute.value under the DataAttribute, IdentifiedObject.name, four of DataAttribute.type and DataAttribute.MemberOf_Data, what wherein the rdf:resource of DataAttribute.MemberOf_Data back represented is the associated data type of this DataAttribute (data attribute).
It should be noted that under the LNode to comprise one or more Data, also may comprise one or more DataAttribute under the Data.Also may related one or more LNode below concrete equipment such as the Breaker.
Fig. 5 is a specific implementation schematic flow sheet of the present invention.As Fig. 5, intelligent substation obtains resource description framework (Resource DescriptionFramework is called for short RDF) file, i.e. the CIM.rdf file of following IEC 61970 CIM (common information model) from main website.This document comprises contents such as relevant class, attribute, incidence relation.
Load example xinguo.rdf file, this document is an interrelated relation of describing concrete transformer station main electrical scheme, comprises Company, VoltageLevel, Ground, ConnectivityNode, Disconnector, GroundDisconnector, Terminal, StaticVarCompensator, Bay, Breaker, TransformerWinding, PowerTransformer, EnergyConsumer, Substation, BusbarSection, Geographical Region, Fuse, TapChanger, ACLineSegment, PT, BaseVoltage and the interrelated relation between them.
Obtain unified resource ID from main website, set up collaborative configuration file adapter.xml, this document comprises PSRTypeDesc, LNodeTypeDesc, DataTypeDesc, DataAttributeTypeDesc, these several of MeaTypeDesc.PSRTypeDesc wherein, LNodeTypeDesc, DataTypeDesc, these several of DataAttributeTypeDesc extract from the xingguo.rdf model file, just the continuous item that uses in the actual electric network model.
MeaTypeDesc according to the DataAttributeTypeDesc configuration amount among the adapter.xml is measured generates the relevant measurement model of grid equipment with the logical node model; By program the measurement model sequence that generates is turned to the test_bak.xml file, offer main website.Need to prove that the foundation of event model is whether to distinguish and be that event model is corresponding by increase a timeStamp (time tag) attribute at the DataAttribute (data attribute) that measures model.
Obtain data from IEC 61850 communication object servers, refresh internal memory.Event data in the intelligent substation send pattern to be sent to main website on adopting initiatively; Common metric data then provides the synchronous and asynchronous two kinds of patterns of reading, and once sends data to main website synchronously, and perhaps asynchronous timing sends delta data to main website.
Claims (4)
1. modeling method is shared by intelligent substation and main website, it is characterized in that this method may further comprise the steps:
(a) by the panorama data of various sensor acquisition to comprehensive reflection substation equipment state such as transformer station's stable state, transient state, dynamic data and equipment state, image and operating condition; And follow IEC 61850 modeling rules, the panorama data transaction is become to meet the object model of IEC 61850 standards;
(b) the substation secondary device model that will follow IEC 61850SCL is changed mapping mutually with the main website primary equipment model of following IEC 61970CIM modeling standard, realizes electric power system first and second equipment unified Modeling;
(c) follow IEC 61970GID standard, GID is provided open application interface.
2. modeling method is shared by intelligent substation according to claim 1 and main website, it is characterized in that, described panorama data are the electric parameters that not only comprise tradition " four is distant ", also comprise facility information (the winding deformation situation of transformer, chromatography result, cooling heat radiation system situation, the situation of the action frequency of circuit breaker, transmission mechanism energy storage situation, drop-out current, and environmental information, image information etc.
3. modeling method is shared by intelligent substation according to claim 1 and main website, it is characterized in that, the monitoring equipment of all non-IEC 61850 in the subsystem of substation is changed by stipulations, and the unified IEC61850 that externally provides serves, and realizes sharing of various system resources.
4. modeling method is shared by intelligent substation according to claim 1 and main website, it is characterized in that, the substation secondary device model of following IEC 61850SCL is changed mapping mutually with the main website primary equipment model of following IEC 61970CIM modeling standard, electric power system first and second equipment is carried out unified Modeling, realize seamless communication between intelligent substation and the main website.
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| CN101964542A (en) * | 2010-08-20 | 2011-02-02 | 绍兴电力局 | Method for accessing IEC61970 dispatching EMS system to IEC61850 digital transformer substation |
| CN102209108A (en) * | 2011-05-16 | 2011-10-05 | 广东电网公司深圳供电局 | Method and system for realizing seamless communication between master scheduling station and substation of power grid |
| CN102289727A (en) * | 2011-06-24 | 2011-12-21 | 慈溪市供电局 | Comprehensive early-warning control system for grid scheduling |
| CN102299558A (en) * | 2010-06-23 | 2011-12-28 | 北京市电力公司 | Method and device for providing electric power system information |
| CN102411649A (en) * | 2011-08-09 | 2012-04-11 | 山东电力工程咨询院有限公司 | Method for interchanging designs by using general model of intelligent device |
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