Method for automatic examination of wiring correctness of intelligent substation SCD configuration file virtual terminator

Abstract

The invention relates to the field of intelligent substation operating maintenance, in particular to a method for automatic examination of wiring correctness of an intelligent substation SCD configuration file virtual terminator. The method is suitable for digital substations and intelligent substations adopting the IEC 61850 standard. According to the method, various main-wiring-form intelligent station relay protection associated equipment virtual terminator wiring model bases and a virtual terminator standard template file are generated, and an SCD file to be examined is compared with the virtual terminator standard template file, so that whether wiring of the virtual terminator of a device to be examined is correct and complete is automatically judged. High manual operation workload and errors are avoided, and working efficiency is improved greatly.

Description

Technical field [0001] The invention relates to the technical operation field of operation and maintenance of smart substations, and in particular to an automatic checking method for the connection correctness of virtual terminals of SCD configuration files of smart substations. The method is suitable for digital substations and smart substations adopting IEC61850 standard. Background technique [0002] The association relationship between relay protection devices in smart substations is defined by SCD files. Take a 220kV substation as an example, the correlation is as figure 1 As shown, the line merging unit outputs the sampled value to the line protection device, while the sampled value is transmitted to the busbar protection device, the main transformer merging unit outputs the sampled value to the main transformer protection, and the sampled value is transmitted to the corresponding busbar protection, each protection device The association relationship between GOOSE includes:...

AI Technical Summary

Problems solved by technology

Since substations with different voltage levels have different main wiring methods, and a substation has many outgoing lines, and there are dual configurations of relay protection devices, the actual relationship will be more complex than figure 1 Shown is much more complicated

There are a large number of virtual terminal connections in high-voltage level smart substations with large secondary systems. At this stage, manual verification of the correctness of virtual terminal connections is not only heavy but also prone to omissions and errors.

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