Abstract

A two-level relay protection system has been developed that provides a significant improvement in the basic properties of relay protection. The proposed system consists of a base level and a centralized “digital add-on” for each power node. The developed two-level structure of the centralized digital RS system ensures the autonomy of the base level and the survivability of the entire relay protection system at the substation as a whole. This “digital substation” management architecture can be implemented on-site in stages. The two-stage principle of organizing construction and installation and commissioning works allows creating new “digital” substations and converting existing substations to the status of “digital” substations with minimal time spent. Comprehensive studies of the prototype of the protection system conducted in the laboratory and in the conditions of pilot operation confirmed the validity of the restrictions and assumptions adopted during the development.

中文翻译：

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配电网络中的数字继电保护系统

摘要

已经开发出一种两级继电保护系统，该系统可显着改善继电保护的基本特性。提议的系统包括一个基本级别和每个电源节点的集中式“数字附件”。集中式数字RS系统的已开发的两级结构确保了基础层的自治性以及整个变电站的整个继电保护系统的生存能力。这种“数字变电站”管理架构可以分阶段现场实施。通过组织施工，安装和调试工作的两阶段原则，可以创建新的“数字”变电站并将现有的变电站转换为“数字”变电站的状态，而花费的时间却很少。