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- W2047367813 abstract "Internet Data Centers (IDCs), which are essential facilities in the modern IT industry, typically have scores of MW of concentrated electric loads. The provision of an Uninterruptible Power Supply (UPS) is necessary for the power feed system of IDCs owing to the need for stable power. Thus, conventional IDC AC power feed systems have three cascaded power conversion stages, (AC-DC), (DC-AC), and (AC-DC), resulting in a very low conversion efficiency. In comparison, DC power feed systems require only a single power conversion stage (AC-DC) to supply AC main power to DC server loads, resulting in comparatively high conversion efficiency and reliability [4-11]. This paper compares the efficiencies of a 220V AC power feed system with those of a 300V DC power feed system under equal load conditions, as established by the Mok-Dong IDC of Korea Telecom Co. Ltd. (KT). Experimental results show that the total operation efficiency of the 300V DC power feed system is approximately 15% higher than that of the 220V AC power feed system." @default.
- W2047367813 created "2016-06-24" @default.
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- W2047367813 date "2012-01-20" @default.
- W2047367813 modified "2023-09-26" @default.
- W2047367813 title "Comparative Study on 220V AC Feed System and 300V DC Feed System for Internet Data Centers" @default.
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- W2047367813 doi "https://doi.org/10.6113/jpe.2012.12.1.157" @default.
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