变电站备自投逻辑的改进方法  

Research On Methods For Improvement Of Automatic Switching Logic In substation

作　　者：曾凡永 ZENG Fan-yong(Integrated Electronic Systems Lab Co.,Ltd,Jinan 250104,China)

机构地区：[1]积成电子股份有限公司,山东济南250104

出　　处：《山东工业技术》2023年第4期113-116,共4页Journal of Shandong Industrial Technology

摘　　要：110 kV电压等级变电站普遍采用内桥接线方式,若电源检修时,需具备闭锁备自投设置或者退出备自投功能,电源检修期间如果运行电源间隔因故障跳开运行开关将导致全站失压。为了避免上述全站失压的风险,增加电网的供电可靠性。本文提出分别从软件上完善备自投逻辑和一次设备侧增加1回电源的改进方法,结合电网变电检修的运维经验,充分考虑备自投闭锁逻辑,对工程实践和电网的安全稳定运行具有重要的指导意义。The way of inner-bridge connection is generally adopted in the 110kV voltage grade substations.At the time of conducting the maintenance of the power supply,the function of blocking the automatic bus transfer setting or exiting the automatic bus transfer should be possessed.In the period of power supply maintenance,the whole station will lose voltage if the operation switch is tripped due to fault in the operation power interval.To avoid the risk of voltage loss of the above whole station and enhance the reliability of power supply of the power grid,the improvement methods of perfecting the automatic bus transfer logic and adding one power supply at the primary equipment side respectively from the software is proposed in this thesis.Besides,the operation and maintenance experience of power grid substation maintenance is combined to fully consider the blocking logic of automatic bus transfer,in which the important guiding significance is embodied for engineering practice as well as the safe and stable operation of power grid.

关 键 词：内桥接线 备自投 变电检修 闭锁逻辑 

分 类 号：TM77[电气工程—电力系统及自动化]