Concept of new power supply system topology using 380 V and 48 V DC bus for future datacenters and telecommunication buildings

• Published in: 2015 IEEE International Telecommunications Energy Conference (INTELEC) pp. 1 - 6
• Main Authors: Tanaka, Toru, Hanaoka, Naoki, Takahashi, Akiko, Asakimori, Koki, Iwato, Takeshi, Sakurai, Atsushi, Yamashita, Nobuhiko
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-10-2015
• Subjects: Batteries; Buildings; HVDC transmission; Power demand; Telecommunications; Topology
• ISSN: 2158-5210
• DOI: 10.1109/INTLEC.2015.7572379

A new power supply topology is proposed for using various types of power supply systems together in data centers and telecom buildings. In this topology, the power supply chain from the building power receiving point to the IC chips in the ICT equipment is organized into blocks to simplify the number of DC bus conversion steps. Two types of voltage for the DC bus are proposed; 380 V and 48 V. This topology is expected to enable the design of power supply systems that are highly efficient, highly reliable, and less expensive and that can be flexibly applied in buildings that are large or small according to reliability requirements.