Telecom datacenter power infrastructure availability comparison of DC and AC UPS

Author

Talapko, Domagoj

Author_Institution

Emerson Network Power, Zagreb, Croatia

fYear

2012

fDate

Sept. 30 2012-Oct. 4 2012

Firstpage

1

Lastpage

5

Abstract

This paper addresses the reliability and availability of uninterruptable power supply systems (UPS) used in modern datacenters and telecom core infrastructure. As 380V DC power distribution systems are gaining wider acceptance, it is expected that they meet high standards imposed by the industry in terms of reliability and availability. In this paper, reliability and availability of AC UPS topologies are compared to 380V DC topologies using an example of powering a 270kW load. The comparison is made for several different topologies and includes datacenter electrical infrastructure allocated to AC UPS and DC UPS systems. Results of this comparison are derived from a static reliability modeling approach by means of Fault Tree Analysis.

Keywords

computer centres; power system reliability; telecommunication power supplies; uninterruptible power supplies; AC UPS; DC UPS; fault tree analysis; power 270 kW; static reliability modeling; telecom datacenter power infrastructure availability; uninterruptable power supply systems availability; uninterruptable power supply systems reliability; voltage 380 V; Availability; Batteries; Load modeling; Switches; Topology; Uninterruptible power systems; AC; DC; FTA; UPS; availability; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2012 IEEE 34th International

Conference_Location

Scottsdale, AZ

ISSN

2158-5210

Print_ISBN

978-1-4673-0999-8

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2012.6374509

Filename

6374509