肖 振 时庆兵（中国移动通信集团设计院有限公司安徽分公司，合肥市 230041）

Brief Analysis of the Solutions for Step‑by‑step Switching of

Medium‑voltage Loads at the Data Center

XIAO Zhen SHI Qingbing

(China Mobile Group Design Institute Co.,Ltd. Anhui Branch,Hefei 230041，China)

Abstract：According to the control requirements for step‑by‑step load switching device at the data center,several widely used solutions for step‑by‑step load switching are compared and analyzed,including step‑by‑step switching device for special loads,10 kV dual‑power changeover switch controller with step‑by‑step load switching function,PLC controller independently built and programmed with discrete components and automatic control of digital communication based on IEC 61850 optical fiber ring network GOOSE transmission technology, and suggestions are proposed for selection.

Key words：data center;step‑by‑step load switching;power supply reliability;starting current;dual‑power switching;PLC controller;GOOSE transmission technology;solution

摘　要：根据数据中心负荷逐级投切装置的控制要求，对目前应用比较多的专用负荷逐级投切装置、带有负荷逐级投切功能的10 kV双电源转换开关控制器、采用分立元器件自行搭建和编程的PLC控制器、基于IEC 61850光纤环网GOOSE传输技术的数字通信自动控制几种负荷逐级投切解决方案进行比较分析，并提出选择建议。

关键词：数据中心；负荷逐级投切；供电可靠性；启动电流；双电源切换；PLC控制器；GOOSE传输技术；解决方案

中图分类号：TU852                 　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2024.07.009