数据中心交直流混合供电系统效率浅析

摘要

介绍了数据中心交直流混合供电系统方案产生的背景。针对目前认为交流直供承担所有负载效率最优化的观点，对交直流混合供电系统的效率进行了理论分析和试验验证，说明了交直流混合供电系统方案中系统效率的影响因素以及在现网机房中如何实现该方案的最佳效率点。作为简单的参考原则，在高压直流系统（HVDC）不休眠的情况下，在目前业界主流的产品配置下，推荐采用交流和高压直流系统（HVDC）均分负载的供电模式。%It introduces the background of AC and DC hybrid power solution for datacenters. Regarding the viewpoint of that the AC part of the hybrid power system taking al loads brings the best efficiency, it analyses the efficiency of the hybrid power system from both theoretical and experimental aspects. It il ustrates which factors decide the efficiency of the hybrid power system and how to achieve the best efficiency in a real application with equipment fixed. As a simple reference principle, with nowa-days mainstream product configuration, the AC and HVDC load-average-sharing mode is recommended when HVDC is not in dormancy mode.