一种新颖的母联备自投逻辑方法

A Novel Approach to the Automatic Bus Transfer Logic for Bus Connection

在输配电系统中,为了提高电力系统的供电可靠性,电网供电普遍采用一主一备模式,即当主工作电源出现故障不能正常供电时,由备自投装置将负荷自动切换到备用电源,从而保证不间断对用户供电。该文针对单母分段系统各种形式的开关变位特性,通过对传统母联备自投逻辑的分析,指出其中存在的一些不足,并提出一种新的母联备自投逻辑,它具有能有效减少微机保护装置的出口接点、简化屏与屏之间的电缆连线、降低工程的成本、方便运行值班人员的操作等优点。

In order to improve the reliability of power supply system, the dual-power supply mode is widely adopted in power transmission and 1 distribution. Namely, when the main power system breaks down and fails to supply power normally, the automatic bus transfer devices will automatically switch the system into a backup mode, so as to ensure uninterrupted power supply for users. In this paper, based upon the analysis of the structure features of traditional automatic bus transfer logic for bus connection, a novel automatic bus transfer logic is proposed. This bus transfer logic can effectively decrease the export connections, simplify the cable connections among screens, reduce project costs and provide more convenient operations for staff on duty, thus could find wide applications.