南水北调中线一期工程总干渠配网自动监控系统设计

Design of Distribution Automation Control System of the Main Canal in the Phase-1 of the Middle Route of South-to-North Water Transfer Project

利用计算机监控技术、微机继电保护技术和光纤通信技术,合理地确定了南水北调中线一期工程监控方案和继电保护方案。工程总调中心设置电力调度监控主站,供电专网的每个中心开关站设置监控子站,专网的每座降压变电站设置监控终端,35kV长距离链式供电线路设置分段光纤纵差保护,并通过光纤双环网通信,构成整个工程的配网自动化和继电保护方案。同时还提出了设计中需要注意的问题,供同行参考。

With computer control, computer relay protection and fiber communication technology, the control and relay protection strategy in the phase-1 of the Middle Route of the South-to-North Water Transfer Project is reasonably made. The main dispatching center of project sets up the power dispatching and control stations;and every switch station center of the supply network sets up control substation. And 35kV long-distance chain power supply line founds fiber subsection vertical difference protection that, by fiber double circuit communication, makes up of distribution automation and relay protection scheme of the whole project. At the same time, some questions need to pay in the design are raised for reference.