A Rough Set-Based Integrity Checking Method for Relay Protection Data

The quality of relay protection data is an important basis for supporting the professional application of relay protection, and the integrity of the professional data of relay protection is an important part of the relay protection data quality. This paper proposes a method for checking the integrity of relay protection data. The method first obtains the data attributes required for professional applications in relay protection, and then uses the rough set reduction method to determine the relationship between the data attributes, that is, whether there is a corresponding relationship between attributes as condition attribute and the decision attribute, and the decision attribute can be removed from the integrity check attribute set as needed. Aiming at the complex correlation between different attributes, an optimization model is established to comprehensively eliminate redundant attributes, so that the attributes covered in the integrity check attribute set are necessary attributes. According to the obtained integrity check attribute set, integrity check is performed on the accessed data to verify the integrity of the data.