摘要
简单介绍了电网中常用的三种备用电源自投方式及动作逻辑,分析了常用备用电源自投装置关键定值项的整定方法。分别对变电站运行中的两个备自投动作案例做了详细的研究分析,并各自给出了相应的解决方案。案例1给出了备自投无流电流的选取方法。案例2指出了规程没有关于两级备自投时间配合的缺陷,并提供了相应的计算方法,解决了两级备自投时间配合问题,提高了备自投动作的成功率。
In this paper,it introduces three types of auto-switch-on method and action logics of stand-by power supply,analyzes the value setting method of the key fixed values of the auto-switch-on device of the stand-by power supply,analyzes two real cases on auto-switch-on actions in substation separately and offers relevant solutions.In case 1,it shows the judgment method of current existence of auto-switch-on device of the stand-by power supply.In case 2,it points out the limitation of lack of time assort between two auto-switch-on actions on different voltage sides in the regulation,provides relevant calculation method and solves the problem mentioned above and improves the successful rate of auto-switch-on action.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第20期225-227,231,共4页
Power System Protection and Control
关键词
动作逻辑
备用电源自投装置
定值配合
整定计算
两级备自投
action logic
auto-switch-on device of stand-by power supply
setting values matching
setting calculation
two grades auto-switch-on
