A quantitative comparison and evaluation of 48V DC and 380V DC distribution systems for datacenters

Author

Cong Wang ; Jain, Praveen

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, ON, Canada

fYear

2014

fDate

Sept. 28 2014-Oct. 2 2014

Firstpage

1

Lastpage

7

Abstract

Studies have shown that for a datacenter DC power distribution system has higher efficiency and reliability than a traditional AC power distribution system. DC distribution system has two voltage standards, 48V and 380V. Most of the studies show that 380V DC distribution is more promising than the 48V DC distribution. This paper presents a quantitative comparison and evaluation for both the 48V DC and 380V DC distribution systems in terms of overall efficiency, system reliability, and overall cost. The 380V DC system has higher system efficiency and cost more, while the 48V DC system has higher system reliability. Based on this study, a new DC system architecture, which combines the advantages of both the systems, is introduced.

Keywords

DC power transmission; computer centres; power distribution reliability; datacenter DC power distribution system; overall cost; system efficiency; system reliability; voltage 380 V; voltage 48 V; voltage standards; Batteries; Communication cables; Power cables; Power distribution; Rectifiers; Reliability; Uninterruptible power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International

Conference_Location

Vancouver, BC

Type

conf

DOI

10.1109/INTLEC.2014.6972112

Filename

6972112