市区高压配电网典型接线方式的技术经济分析

Technical and Economic Analysis of Urban High Voltage Distribution Network Typical Connection Mode

根据国家电网颁布的最新配电网规划导则,建立均匀分布和条状分布两种分布模型,考虑基于N-1安全校验的不同接线方式下的线路选型,并在此基础上形成一套基于等年值和故障模式后果分析法(FMEA)的市区高压配电网技术经济比较方法,通过对市区110kV高压配电网典型接线方式进行分析计算,得出典型接线方式的技术经济特点,并给出不同情况下的推荐接线方案,不仅为现代市区高压配电网技术经济比较提供了完整可靠的方法,还为城市高压配电网规划工作提供了参考。

Urban 110kV high voltage distribution network is an important part of the city distribution net- work. Sometimes the urban distribution network connection mode and layout is unreasonable. According to the latest distribution network planning guide issued by the state grid, uniform and strip distribution mod- els were established. Considering line selection of different connection modes based on N-1 safety verifica- tion, a set of urban high voltage distribution network technical and economic comparative method based on uniform annual value method and failure modes and effects analysis（FMEA） was formed. Through the a- nalysis and calculation of urban ll0kV high voltage distribution network typical connection mode, the technical and economic characteristics of the typical connection mode were concluded, and the recommen- ded connection schemes under different conditions are given. The complete and reliable method for modern urban high voltage distribution network technical and economic comparison also provides reference for the urban high voltage distribution network planning.