Automatic Setting Method of Relay Protection Device Based on Self-description of Setting Value

Abstract

The protection setting is the key to determine the correct action of the relay protection, which directly affects the action of the protection device. The automatic calculation of the settings based on the self-describing file is adopted to complete the automatic matching and interaction between the setting calculation system and each setting value of the field relay protection device, the relay protection device can automatically generate a setting file template, then upload it to the setting computing system through the relay protection technical support system. The traversal matching method with improved editing distance is used to achieve automatic and accurate matching of fixed value items. The complete set value generated by the setting calculation is loaded into the setting template file to form a new setting file. After receiving the setting file from the setting calculation system, the protection device first verifies the data fingerprint of the setting file and completes the automatic setting after ensuring the accuracy of the setting file. This process avoids the "wrong setting" behavior of the traditional setting value notification, such as the wrong number and manual setting, and ensures the correctness of the setting value execution.