| Title |
A Comparative Study on the Electric Power Efficiency of IDCs with AC and DC Distribution Systems |
| Authors |
Sung-Young Son ; Hyung-Soo Mok ; Kyung-Seok Park ; Jun-Hee Hong |
| Keywords |
IDC System ; AC Distribution System ; DC distribution System ; Electric Power Efficiency |
| 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. |