基于回路可靠性统计指标的电网充裕性在线评估模型

摘要

This paper analyzes loop as the minimum unit, and presents an online adequacy evaluation model of power grid based on loop statistical reliability indices. The model collects loop statistical reliability indices online on the facilities of electric power reliability management system, and accesses the state of assess data online from the EMS. On the basis of traditional grid system reliability evaluation indices, three levels index of system-loops-node is established, fully reflecting the reliability of the electrical network. The actual assessment of power grid of certain a province in Central China indicates that the model is simple and effective, with the prospect of online applications.%本文以回路作为最小分析单元, 提出了一种基于回路可靠性统计指标的电网充裕性在线评估模型. 该模型在线采集输变电设施可靠性管理系统中的回路可靠性统计数据, 并从EMS中在线获取电网评估状态数据. 在传统电网充裕性评估系统指标的基础上, 建立了系统-回路-节点三层指标体系, 全面反映电网的可靠性水平. 对华中某省实际电网的评估结果表明, 该模型简单有效, 具有在线应用的前景.