摘要
钻石型配电网为解决配电网变电站间负荷转供能力和平衡能力不足,变电站直送用户线路利用率不高等问题提供了新思路。通过对钻石型配电网供二级开关站接线进行研究,分析了该接线的网架结构、用户与电源接入、继电保护与配电自动化配置及其可靠性。在某110 kV变电站配套出线工程中的应用结果表明:由于第二级开关站及其电源进线不变,可避免地块内部网架接线大幅改造,提升了钻石型配电网的可实施性。
Diamond distribution networks provide a new idea for solving the problems of insufficient load transfer and balancing capability among substations and low utilization efficiency of direct transmission lines.Based on the study of the connection of the secondary switch station in diamond distribution networks,the network structure,the connection between users and power supply,configuration of relay protection and distribution automation and the reliability were analyzed.The application in a 110 kV substation matching out-line project shows that large-scale modification of network connection can be avoided with the secondary switch station and inlet line of power supply unchanged,which improves the actionability of the diamond distribution networks.
作者
肖远兵
郑真
卢婧婧
黄晨宏
蒋献伟
颜华敏
任明珠
XIAO Yuanbing;ZHENG Zhen;LU Jingjing;HUANG Chenhong;JIANG Xianwei;YAN Huamin;REN Mingzhu(State Grid Qingpu Power Supply Company,Shanghai 201707,China)
出处
《宁夏电力》
2021年第4期44-47,64,共5页
Ningxia Electric Power
关键词
钻石型配电网
二级开关站
继电保护
diamond distribution network
secondary switch station
relay protection
作者简介
肖远兵(1991),男,硕士,工程师,从事电网运行及继电保护等工作。
