链式接线变电站备自投方案的探讨  

Discussion of reserved auto-switch-on scheme for substations equipped with chain connection

作　　者：许云龙 孟乐 李国斌 游建军 朱若松 

机构地区：[1]许继电气公司技术中心,河南许昌461000

出　　处：《电力系统保护与控制》2010年第19期232-234,共3页Power System Protection and Control

摘　　要：链式主接线是提高电网供电可靠性的有效接线形式,但其对备自投装置提出了更高的要求。介绍了链式接线的应用背景及结构特点,利用穷举法分析了其所有的运行方式,提出了链式接线应采取的备投原则。根据链式接线的运行特点,分析了其对备投装置功能的要求及装置开发设计时需要考虑的问题,制定了能够合理自动适应链式接线不同运行方式的备自投方式和备投充放电方案。按本方案开发的WBT-851备自投装置已经在北京地区成功应用。The chain main connection is an effective electrical scheme to improve the power distribution reliability. However, higher request of the reserved auto-switch-on device is needed to cooperate with this electrical scheme. Application background and structural characteristics of chain connection are introduced. All the operating modes of chain connection are analyzed by using exhaustive method and auto-switching principle is obtained. According to the operating characteristics of chain connection, function requirements of the reserved auto-switch-on device and problems in design are analyzed. The reserved switch-on mode the chain connection needs and the charge-discharge scheme of reserved auto-switch-on device are put forward to adapt different operating modes of the chain connection. WBT-851 reserved auto-switch-on device developed based on this scheme has been successfully applied in Beijing.

关 键 词：链式接线 备自投 自适应 可靠性 

分 类 号：TM762[电气工程—电力系统及自动化]