直流楼宇供电系统的设计要求分析与研究

楼宇直流供电系统存在诸多关键性问题,且一直都难以形成统一的定论。近年来,随着数据中心供电系统的发展,国内外已有多个研究组织或机构提出了"高压直流供电系统(HVDC)"或"400 V直流供电系统"的相关要求及标准,并指出该类标准可以适用于楼宇直流供电系统。介绍了国际、国内的几个主要直流供电系统标准的制定组织或机构的动向及相关标准制定的情况,包括我国通信用240 V直流供电系统标准。综合上述标准,比较了不同机构或组织之间标准内容的异同,分析了直流供电系统的一些可以得到明确定义的关键性问题。基于这些关键性问题的分析,讨论了绿色直流楼宇供电系统的系统架构和电力电子接口变换器的设计要求,可作为推广应用直流供电系统和研发其关键设备的参考。

Analysis and Research on Design Requirements of Power Supply System in DC Building

There are lots of key issues existed with the power supply system in DC building, and it is controversial as these issues have not been solved completely. In recent years, worldwide attention has been focused on proposing the standards of "HVDC power supply system" or "up to 400 V DC power feed system" following with the development of the power supply system in data center. Many attentions from the worldwide research organizations or institutions pointed out that these standards could be applied with DC Building. In this paper, the standards of the main organizations and institutions on HVDC power supply system were introduced first, including the 240 V DC standard for telecommunications of China. Then some definitions of the key issues among the standards of these organizations or institutions were analyzed and compared. Then, the design requirements of the power supply system in DC building were discussed based on the above defined key issues, including the system architecture and the power electronic converters interfaced to the system. These analysis can be referenced for designing the key equipment of the power supply system in DC building and helpful are for popularizing the DC power supply technology.