Smart substation configuration file difference comparison system

Abstract

The invention discloses a difference comparison system of an intelligent substation configuration file, and aims to solve the technical problem that the normal operation of device equipment is affected since the change of a configuration file in the new construction, reconstruction, extension and operation and overhaul processes of an intelligent substation is hard to distinguish. The difference comparison system comprises a display module, a document data comparison module, a storage module and a server database, wherein the display module is used for displaying a human computer UI (User Interface) interaction interface to display a comparison result of the document data comparison module; the document data comparison module carries out maximum LCS (Longest Common Subsequence) solving on an original file custom structure data sequence and a target file custom structure data sequence and carries out comparison to obtain a comparison result, and the comparison result is subjected to difference coloring and is sent to the display module to be output and displayed; the storage module stores the comparison result and temporarily stores converted original file custom structure data and converted target file custom structure data; and the server database stores the original comparison file and the target comparison file of a user.

Description

Technical field [0001] The invention relates to the field of electric power automation, in particular to a system for comparing the differences of CID, CCD and SCL files in intelligent substations. Background technique [0002] The substation configuration description language SCL (Substation Configuration description Language) is defined in the IEC61850-6 standard to describe the configuration and communication system of the intelligent electronic device IED. Through this language, the relative relationship between the substation automation system and the substation itself can be described normatively. SCL language grammatically follows the provisions of XML grammar, and semantically contains all kinds of objects involved in substation configuration as much as possible. [0003] At present, an important part of the configuration of the intelligent substation system is to instantiate the IED according to the ICD (IEDcapability description) file provided by the equipment manufactur...

AI Technical Summary

Problems solved by technology

In the new substation project, due to the adjustment of the internal function of the IED, the ICD file may be changed, resulting in the square change of the SCD file, which brings many unfavorable factors to the project debugging; Whether it affects the correctness of the IED configuration that has been put into operation is difficult to verify through experiments. Therefore, the version management of SCD files is a thorny issue that plagues the operation and maintenance of smart substations

[0004] Using the comparison method to check the difference between the SCL configuration files before and after modification is a way to solve the above problems, while the conventional plain text and Extensible Markup Language (XML) comparison tools use a character-by-character comparison algorithm, which is difficult to clarify and structure Express the differences of SCL configuration files in a more efficient manner. The byte-by-byte comparison method can only compare the structure is completely consistent. For CID, CCD, and SCL configuration files, operations of adding, deleting, and modifying are frequently performed. It is difficult to judge after operation

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