A series-stacked power delivery architecture with hot-swapping for high-efficiency data centers
A series-stacked power delivery architecture with hot-swapping for high-efficiency data centers
复制标题
具有热插拔功能的串联堆叠供电架构，适用于高效数据中心
DOI：
10.1109/ecce.2015.7309740
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Pilawa
中科院分区：
文献类型：
--
作者：
Enver Candan;D. Heeger;Pradeep S. Shenoy;R. Pilawa
当前的数据中心供电架构由许多级联的电源级组成，其中系统级的效率取决于电源元件的效率。最近，串联堆叠的电力传输架构消除了这种依赖，并报告了数据中心超过99%的系统级电力转换效率。在本文中，我们在不牺牲高功率传输效率的情况下，解决了串联堆叠功率传输架构中重要的启动和热插拔挑战。我们通过实验验证了热插拔操作，该测试平台包括四个串联的12v， 65w服务器和四个差分转换器。结果表明，当其中一台服务器被热插拔时，串联堆叠的服务器可以保持连续运行。
Current data center power delivery architectures consist of many cascaded power stages, where the system-level efficiency is dependent on the efficiency of the power elements. Recently, series-stacked power delivery architectures eliminated this dependency and reported more than 99% system-level power conversion efficiencies for data centers. In this paper, we address the important start-up and hot-swapping challenge of the series-stacked power delivery architectures without sacrificing the high power delivery efficiency. We experimentally validate the hot-swapping operation on a testbed that includes four series-connected 12 V, 65 W servers and four differential converters. The results show that the continuous operation of the series-stacked servers can be maintained, while one of the servers is hot-swapped.