CN103049431B - ICD (IED Capability Description) inspection method based on objectified module semantics - Google Patents

Abstract

The invention discloses an ICD inspection method based on the semantics of model objectification, which mainly includes the following steps: firstly, a standard RDF Schema model is used to carry all data models; the RDF standard model is objectified; nodes in the file are created as RDF data objects, and Establish the connection between objects; carry out the semantic verification of each node according to the standard RDF Schema model; get the verification report. Beneficial effects of the present invention: In the case of frequent ICD file changes, it can effectively save labor costs, improve work efficiency, and reduce repetitive labor; effectively solve the problem of coordination between various equipment manufacturers due to different understanding of standards question.

Description

ICD Inspection Method Based on Model Object Semantics

technical field

The invention relates to an ICD inspection method based on model object semantics.

Background technique

In the process of smart substation construction, the ICD file plays an important role. The ICD file is provided by the device manufacturer to the system integrator, and the system integrator then integrates according to the signals defined in the ICD file. The ICD file is a bridge connecting all links. Describes the communication capabilities of the device in detail. However, the construction of smart substations is currently facing the following problems:

① Each equipment manufacturer writes its own configuration tool to create ICD files, and the correctness is difficult to guarantee.

②The ICD files provided by each equipment manufacturer change frequently, and there is no strict version control mechanism.

③The equipment manufacturers did not define the signal strictly according to the IEC61850 standard when creating the ICD file.

④ Coordination problems often arise between various equipment manufacturers due to different understandings of standards.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems, and to provide an ICD verification method based on model object semantics, which has the advantage of solving the verification problem of the correctness of the dependency relationship of each node in the ICD file.

In order to achieve the above object, the present invention adopts the following technical solutions:

The ICD inspection method based on model object semantics mainly includes the following steps:

Step (1): Establish the RDF Schema model of the ICD file according to the IEC61850 standard Schema model (XML Schema). The reason for establishing the corresponding RDF Schema model is that there is a close dependency between the nodes in the ICD file, which is suitable for object-oriented The data model is carried; the RDF Schema model is the model RDF Schema mentioned in the Chinese patent (application number: 201110227408.9, patent name: graphics and RDF model construction method for intelligent substation design);

Step (2): Objectify the RDF Schema model; create all ICD file nodes as object-oriented RDF data object instances, and create dependencies between all ICD file nodes as specific RDF data object associations. In the final ICD file All nodes will be stored in the object-oriented data model in the form of RDF data objects;

Step (3): Node analysis; if there is no dependency relationship between ICD file nodes, the semantic verification will be directly compared with the standard rule base established in advance according to the specific data limit definition of IEC61850; and if the ICD file node There is a dependency relationship between them, and the semantic verification takes out the RDF data object instance stored in step (2) that has a dependency relationship with the ICD file node, and combines it with the standard rule base established in advance according to the specific data limit definition of IEC61850 for comprehensive analysis check;

Step (4): Get the verification report.

The comprehensive analysis and verification of the step (3) is to verify the validity of references according to the data limitation in the standard rule base. The so-called validity of references refers to the matching of logical nodes and logical node types in the ICD file. The difference between the comprehensive analysis verification and comparison verification in the step (3) is that the comprehensive analysis verification not only needs to verify the ICD file nodes, but also needs to verify the dependencies between the ICD file nodes.

The semantic verification of the step (3) is divided into the following steps:

Step (3-1): Establish the corresponding RDF Schema model according to the IEC61850 standard Schema model (XML Schema);

Step (3-2): Parse the ICD file nodes, create an RDF data object instance of the ICD file nodes and store them in the object-oriented RDF data model, and store the dependencies between the ICD file nodes in the form of RDF data objects into the object-oriented RDF data model, so that the entire ICD file node information will be stored in an object-oriented structure in the RDF data model;

Step (3-3): If there is no dependency relationship between the ICD file nodes, it will be directly compared with the pre-established standard rule base; if there is a dependency relationship between the ICD file nodes, it will be taken from the RDF data model The required RDF data objects are compared and verified.

The RDF Schema model objectification of the step (2) adopts the same form as the IEC61850 standard Schema model, uses RDF to describe the IEC61850 standard Schema model, and gives the RDF Schema of the IEC61850 standard Schema model; The access point AccessPoint, the logical device LDevice, and the logical node LN are respectively mapped to the RDF intelligent device IED model class, the access point AccessPoint model class, the logical device LDevice model class, and the logical node LN model class;

The ICD file includes model self-description information, DOI elements instantiated according to project vision scale configuration, and data object instance DOI; the data object instance DOI includes Chinese "desc" description and dU attribute assignment and manufacturer (manufacturer), Important information of smart devices such as model (type), configuration version (configVersion), virtual signal definition, etc., in order to ensure that the ICD file of each change iteration conforms to the standard specification, and to reduce duplication of work caused by syntax or semantic errors in the ICD file, it should be According to the IEC61850 standard and the IEC61850 "Engineering Relay Protection Application Model" specification, the syntax and semantics of the ICD model file provided by the manufacturer are verified.

XML (Extensible Markup Language): Extensible Markup Language.

ICD (IED Capability Description): IED capability description file.

SCL (Substation Configuration Description Language): substation configuration description language.

XML Schema: Defines the legal building blocks of an XML document.

RDF (Resource Description Framework): RDF is an XML application that processes metadata. The so-called metadata is "data describing data" or "information describing information".

RDF Schema: RDF Schema itself is also an RDF file, which is the definition of RDF type.

Beneficial effects of the present invention: In the case of frequent ICD file changes, it can effectively save labor costs, improve work efficiency, and reduce repetitive labor; effectively solve the problem of coordination between various equipment manufacturers due to different understanding of standards question.

Description of drawings

Fig. 1 is a work flow chart of the present invention;

Figure 2 is the IEC61850schema standard model.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, the ICD inspection method based on model object semantics mainly includes the following steps:

Step (1): Establish the RDF Schema model of the ICD file according to the IEC61850 standard Schema model (XML Schema). The reason why the RDF Schema model is used to describe the nodes in the ICD file is that there are close dependencies between the nodes in the ICD file relationship, which is suitable to be carried by an object-oriented data model; the RDF Schema is the vocabulary description language of RDF. In short, RDF describes the relationship between resources and does not define the class to which the resource belongs relationship, and RDF Schema defines the constraints in this respect; the RDF Schema model is the model RDF mentioned in the Chinese patent (application number: 201110227408.9, patent name: graphics and RDF model construction method for smart substation design) Schema. Step (2): Objectify the RDF Schema model; create all ICD file nodes as object-oriented RDF data object instances, and create dependencies between all ICD file nodes as specific RDF data object associations. In the final ICD file All nodes will be stored in the object-oriented data model in the form of RDF data objects;

Step (3): Node analysis; if there is no dependency relationship between ICD file nodes, the semantic verification will be directly compared with the standard rule base established in advance according to the specific data limit definition of IEC61850; and if the ICD file node There is a dependency relationship between them, and the semantic verification takes out the RDF data object instance stored in step (2) that has a dependency relationship with the ICD file node, and combines it with the standard rule base established in advance according to the specific data limit definition of IEC61850 for comprehensive analysis check;

Step (4): Get the verification report.

The semantic verification of the step (3) is divided into the following steps:

Step (3-1): Establish the corresponding RDF Schema model according to the IEC61850 standard Schema model (XML Schema);

Step (3-2): Parse the ICD file nodes, create an RDF data object instance of the ICD file nodes and store them in the object-oriented RDF data model, and store the dependencies between the ICD file nodes in the form of RDF data objects into the object-oriented RDF data model, so that the entire ICD file node information will be stored in an object-oriented structure in the RDF data model;

Step (3-3): If there is no dependency relationship between the ICD file nodes, it will be directly compared with the pre-established standard rule base; if there is a dependency relationship between the ICD file nodes, it will be taken from the RDF data model The required RDF data objects are compared and verified.

The objectification of the RDF Schema model in the step (2) adopts the same form as the IEC61850 standard Schema model, uses RDF to describe the IEC61850 standard Schema model, and provides the RDFSchema model that meets the IEC61850 standard Schema model; the node intelligent device IED in the SCL , access point AccessPoint, logical device LDevice, and logical node LN are respectively mapped to the RDF intelligent device IED model class, access point AccessPoint model class, logical device LDevice model class, and logical node LN model class;

The ICD file includes model self-description information, DOI elements instantiated according to project vision scale configuration, and data object instance DOI; the data object instance DOI includes Chinese "desc" description and dU attribute assignment and manufacturer (manufacturer), Important information of smart devices such as model (type), configuration version (configVersion), virtual signal definition, etc., in order to ensure that the ICD file of each change iteration conforms to the standard specification, and to reduce duplication of work caused by syntax or semantic errors in the ICD file, it should be According to the IEC61850 standard and the IEC61850 "Engineering Relay Protection Application Model" specification, the syntax and semantics of the ICD model file provided by the manufacturer are verified.

The ICD file is described by the SCL (Substation Configuration Description Language) substation configuration description language. SCL is an XML-based language for describing the substation automation system and its structure specified by IEC61850. It is subject to the unified Schema file specified by IEC61850. Constraints, as shown in Figure 3.

As shown in Figure 2, it shows the IEC61850Schema model diagram, which is defined by the SCL substation configuration description language, which specifies the definition of specific nodes and attributes, node relationships and constraints.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (2)

1., based on the ICD method of inspection of model objectification semanteme, it is characterized in that, mainly comprise the following steps:

Step (1): the RDF Schema model setting up ICD file according to IEC61850 standard Schema model;

Step (2): RDF Schema model objectification; All ICD Archive sits are created as OO RDF data object example, dependence between all ICD Archive sits is also created as concrete RDF data object association, and final all ICD Archive sits will be stored in object-oriented data model with the form of RDF data object;

Step (3): node parses; If not Existence dependency relationship between ICD Archive sit, semantic verification will directly define the standard rule base established and compares and verify with limiting according to the specific data of IEC61850 in advance; And if Existence dependency relationship between ICD Archive sit, the middle RDF data object example that is that store and this ICD Archive sit Existence dependency relationship of step (2) is just taken out in semantic verification, comprehensively analyzes verification in conjunction with defining according to the specific data restriction of IEC61850 the standard rule base established in advance;

Step (4): obtain verification report.

2. as claimed in claim 1 based on the ICD method of inspection of model objectification semanteme, it is characterized in that, the RDF Schema model objectification of described step (2) adopts the form identical with IEC61850 standard Schema model, describe IEC61850 standard Schema model with RDF, provide the RDF Schema model meeting IEC61850 standard Schema model; Node intelligent device IED in SCL, accessing points AccessPoint, logical device LDevice, logic node LN are mapped as respectively intelligent apparatus IED model class, accessing points AccessPoint model class, logical device LDevice model class, the logic node LN model class of RDF.