湖南某数据中心削峰填谷蓄冷系统节费改造分析
Analysis of cost-saving retrofit for peak shaving and valley filling cool storage system in a data center in Hunan Province
摘要：
针对数据中心高能耗问题,提出了基于水蓄冷技术的削峰填谷系统节费改造方案。通过分析湖南省株洲地区4倍峰谷电价差特征,结合数据中心冗余制冷架构,构建了“夜间谷电蓄冷+日间峰电释冷”运行模式,利用开式储能蓄冷罐实现8 h应急供冷与电价套利双重功能。研究证明,水蓄冷技术通过设备冗余复用与自然冷源协同,兼具安全性与经济性,可为大型数据中心节费改造提供有效路径。
Abstract：
To address the high energy consumption issue in data centers, this paper proposes a cost-saving retrofit scheme for a peak shaving and valley filling system based on water cool storage technology. By analysing the characteristics of a 4-fold peak-to-valley electricity price difference in Zhuzhou, Hunan Province, and combining it with the redundant cooling architecture of the data center, an operational mode of “storing cold during nighttime valley electricity periods and releasing cold during daytime peak electricity periods” is established. This mode utilizes an open-type cool storage tank for energy storage to achieve dual functions of 8-hour emergency cooling supply and electricity price arbitrage. The study demonstrates that water cool storage technology, through the collaboration of equipment redundancy reuse and natural cold sources, offers both safety and economic efficiency, providing an effective path for cost-saving retrofits in large-scale data centers.
Keywords:peak shaving and valley filling; data center; open-type cool storage tank; cost-saving retrofit; water cool storage