城市中压配电网接线模式研究

从经济性、可靠性、网损率和网络节点的电压水平等方面对城市中压１０ｋＶ配电网络的常用接线模式进行了分析比较和研究，根据不同的情况给出了推荐的电网接线模式：对于负荷密度较小、供电可靠性要求较低的地区建议采用大容量主变的树状接线和经中介点的放射状接线；对于负荷密度较大和供电可靠性要求高的地区建议采用大容量主变的普通环状接线；对于供电可靠性要求很高的地区建议采用手拉手环式接线。

RESEARCH ON CONNECTION MODES OF URBAN MIDDLE VOLTAGE DISTRIBUTION NETWORKS

From the viewpoint of economy, reliability, line losses rate and voltage level of nodes in distribution networks, the commonly used connection modes for urban 10kV distribution networks are analyzed, compared, and studied. For the districts where the load density is low and the requirement to power supply reliability is not very high, it is recommended to adopt the tree connection mode and the main transformer with high capacity or the radial connection mode through medi-node; for the districts where the load density is high and the requirement to power supply reliability is high, it should be proper to adopt the common line loop connection mode and main transformer with high capacity; for the districts where the requirement to power supply reliability is rather high, it is suitable to use hand in hand loop line connection mode.