Intelligent transformer substation expansion and modification impact analysis method based on model decoupling

Abstract

The invention discloses an intelligent transformer substation expansion and modification impact analysis method based on model decoupling. The method comprises the steps that interval information is obtained according to a primary SCD file, when there is no interval information, a virtual primary conducting device is bound with a secondary device by creating voltage classes, intervals and the virtual primary conducting device, and the interval which the secondary device belongs to is obtained; the interval devices which are impacted by expansion are determined, irrelevant intervals and impactintervals are subjected to interval decoupling, and an irrelevant interval model and an impact interval model are obtained; an expansion interval model is added to the impact interval model so as to be combined with the irrelevant interval model after configuration is completed, and a new SCD file is formed through the combination; impact analysis is conducted by comparing the primary SCD file with the new SCD file, and the impact scope is determined. By means of the method, it is achieved that the risks, caused when the SCD file is directly modified traditionally, of error correction or mistake correction of the interval model which has been put into operation are reduced by modifying the specific model configuration file, the safe management and control requirements of the transformer substation expansion SCD file change are met, and the SCD file application complexity is reduced.

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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