数据中心市电油机切换逻辑在物理三锁两钥匙限制下的应用

Application of mains oil engine switching logic in data center under the physical three-lock twokey limit

在数据中心建设中,供电架构设计及市电油机切换逻辑是非常重要的,为了保障数据中心的稳定运转,国标A级数据中心一般采用2路10kV市电2N架构,并配置柴油发电机组做为备用电源。部分省市电力部门要求对市电两进线开关和母联开关增加物理三锁两钥匙,导致系统无法自动切换,响应时间延长,影响供电可靠性。本文讨论在上述场景下,怎样设计市电和油机切换逻辑,并采用安全可靠的电气联锁等技术措施,以确保数据中心供电的安全稳定。

In the context of data center construction,the design of the power supply architecture and the logic for transitioning from municipal electricity to diesel generator backup is paramount for ensuring operational stability.Typically,Grade A national standard data centers employ a dual 10kV municipal power supply with a 2N configuration,complemented by diesel generators as an emergency power source.However,certain provincial and municipal electrical authorities mandate the installation of physical triple locks and dual keys on both the incoming municipal power lines and the bus tie switches.This requirement can impede automatic switching mechanisms,leading to prolonged response times and potentially compromising the reliability of the power supply.The present discussion aims to explore the design of switching logic between municipal power and diesel generators,and to propose the implementation of secure and dependable electrical interlock systems and other technical strategies to safeguard the secure and stable power supply for data centers.