IEC 61850 universal database information model and design method for interface of IEC 61850 universal database information model

Abstract

The invention provides an IEC 61850 universal database information model and a design method for an interface of the IEC 61850 universal database information model. The database model consists of an information model, an equipment model and an application model, wherein the information model obeys IEC 61850; the equipment model obeys IEC 61970; the information model comprises engineering instantiation configuration information of intelligent electronic equipment; and the engineering instantiation configuration information comprises a model type database table, a data type database table, a template type database table and a communication type database table. By a database design with three layers of frameworks, so that a standard model is multiplexed; a database can be automatically established by directly adopting a security coding device (SCD) model file, and an incidence relation among the information model, the equipment model and the application model can be automatically constructed; therefore, the engineering debugging period and the maintenance cost can be obviously reduced; the database information model based on the universal data type is constructed; a search mode quoted by a data object based on a character string format is designed; moreover, an open access interface is supplied; and the IEC 61850 universal database information model is suitable for different database platforms.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and in particular relates to a design method of an IEC 61850 general database information model and its interface. Background technique [0002] IEC 61850-6 defines the substation configuration description language SCL (Substation Configuration description Language), which is used to describe the primary equipment, secondary equipment and communication configuration model of the substation, where the primary equipment and secondary equipment are established through the logical node LN (Logical Node) Associative relationship, the communication configuration model describes the communication parameters of the secondary device, and the three are closely related. [0003] Primary equipment constitutes the functional entity of substation operation and control. The secondary equipment collects the status of the primary equipment and controls the operation of the primary equipment, whic...

AI Technical Summary

Problems solved by technology

However, in the pilot application, after the unified configuration model (SCD) of the primary equipment and secondary equipment of the invention is obtained from the substation monitoring system, the definition of the primary equipment model must be supplemented on the basis of the SCD file to establish the primary equipment and secondary equipment. The correlation between logical nodes, the necessary syntax and semantic checks are performed, and the SCD model is converted to generate the CIM public information model required by the master station. This process is relatively cumbersome, and no intelligent substation automation integration manufacturer can directly provide standardized SCD model

In fact, only the substation system level here meets the source maintenance requirements, while the SCD model generated by the system configuration tool and the substation database modeling process do not meet the source maintenance requirements

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