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http://dx.doi.org/10.5207/JIEIE.2008.22.8.038

A Comparative Study on the Electric Power Efficiency of IDCs with AC and DC Distribution Systems  

Son, Sung-Yong (경원대학교 정보통신공학과)
Mok, Hyung-Soo (건국대 전기공학과)
Park, Kyung-Seok (KT 기업고객서비스본부)
Hong, Jun-Hee (경원대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.22, no.8, 2008 , pp. 38-44 More about this Journal
Abstract
Internet Data Centers (IDCs), which are resulted by the rapid progress of Information Technology industry, consist of high-density digital loads with internet server systems. Introduction of DC distribution system may simplify the conventional electric power conversion system, and may result in the improvement of electric power efficiency. However, this conjecture has never been tested under Korean IDC environment. In this study, electric power efficiency of DC distribution system from KT Namsuwon IDC is contrasted with that of conventional AC distribution system from KT Bundang IDC. DC 48[V] based distribution system showed 13.2[%] higher efficiency than the conventional AC based distribution system. The further analysis with the assumption of DC 380[V] suggests efficiency improvement over 25[%] can be achieved.
Keywords
IDC System; AC Distribution System; DC distribution System; Electric Power Efficiency;
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  • Reference
1 My Ton, Brian Fortenbery, William Tschudi DC Power for Improved Data Center Efficiency, LBNL Reprot, Jan 2007
2 권원옥, 김성운, '저전력 데이터센터 기술 동향', 주간기술동향 1323호, pp.1-15, 2007.11.21
3 William A Hammond, Efficient Power Consumption in the modern Dafacenter, Intel, March, 1, 2005
4 김재한, 양승욱, 목형수, 최규하, 손성용, 홍준희, '전력IT용 디지털 부하를 위한 저전압 직류급전시스템 연구', 전력전자학회, 전력전자학술대회논문집 pp.327-329, 2006.6
5 권원옥, 김성운, 김명준, '저전력 서버기술 동향', 주간기술동향 1306호, pp.1-10, 2007.7.25