智能变电站继电保护系统的可靠性分析

Reliability Analysis of Relay Protection System in Intelligent Substation

为了全面提升智能变电站综合管理水平,要结合继电保护系统的应用要求,落实更加合理的管控方案,从而实现综合管理目标,维持系统运行的稳定性和可靠性。分析了智能变电站继电保护系统的特征,并从变压器配置、过电流限定、间隔层、过程层以及环形结构母线保护等方面对系统可靠性予以讨论。

In order to comprehensively improve the comprehensive management level of intelligent substation,the application requirements of relay protection system should be combined to implement a more reasonable control scheme,so as to achieve the comprehensive management objectives and maintain the stability and reliability of system operation.This paper analyzes the characteristics of relay protection system of intelligent substation,and discusses the reliability of the system from the aspects of transformer configuration,over-current limitation,spacer layer,process layer and ring structure bus protection.