A method for analyzing the impact of smart substation renovation and expansion based on model decoupling

Abstract

The invention discloses a model decoupling-based intelligent substation reconstruction and expansion change impact analysis method, including: obtaining interval information according to the original SCD file, and when there is no interval information, by creating voltage levels, intervals and virtual primary conductive equipment, the Bind the virtual primary conductive equipment with the secondary equipment to obtain the interval to which the secondary equipment belongs; determine the interval equipment affected by the reconstruction and expansion, decouple the unrelated interval and the affected interval, and obtain the unrelated interval model and the affected interval model; The impact interval model is added to the extended interval model, and after the configuration is completed, it is merged with the irrelevant interval model to form a new SCD file; by comparing the original and new SCD files, the impact analysis is performed to determine the scope of impact. The invention realizes the reduction of the traditional direct modification of the SCD by modifying the specific model configuration file to cause wrong changes or the risk of wrong changes to the already put into operation interval model, meets the security management and control requirements of the SCD file change for the substation reconstruction and expansion, and reduces the complexity of the SCD file application.

Description

technical field [0001] The invention belongs to the technical field of electric power system automation, and in particular relates to a model decoupling-based intelligent substation reconstruction and expansion change impact analysis method. Background technique [0002] With the increasing improvement of related technologies in smart substations, smart substations have gradually entered the stage of large-scale practical use. The original intuitive and mutually independent data are replaced by encapsulated and highly coupled network data streams, and the total station SCD files formed by the summarization of various ICDs replace the design. Drawings become the direct basis for commissioning, operation and maintenance, reconstruction and expansion. [0003] SCD (Substation Configuration Description) is the system configuration file of the whole station, which includes the configuration information of all IED equipment in the whole substation, communication information and vi...

AI Technical Summary

Problems solved by technology

Since the impact analysis function of the virtual terminal change in the existing SCD configuration tool has not been realized, we have no effective means to intelligently analyze the impact range of the configuration change of the busbar protection after the busbar protection is installed and configured. The only consistency verification method is the entire group transmission

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