ETRI Journal

  • 제32권6호
  • /
  • Pages.940-949
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  • 2010
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Rack-Level DC Power Solution for Volume Servers

  • Kwon, Won-Ok (Software Research Laboratory, ETRI) ;
  • Seo, Hae-Moon (Department of Electrical Engineering, Kyungpook National University, Realistic Media Platform Research Center, KETI) ;
  • Choi, Pyung (Department of Electrical Engineering, Kyungpook National University)
  • 투고 : 2010.03.09
  • 심사 : 2010.09.06
  • 발행 : 2010.12.31
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초록

Rack-level DC power supply is the optimal technology for providing DC power to a volume server without any power infrastructure changes in an existing AC data center. In this paper, we propose a smartly controllable and monitorable DC rack power system. The proposed system improves power efficiency by changing the power distribution architecture of a conventional method in the rack. We developed an optimal power control method in multipower modules to provide high efficiency at low loads. In addition, the proposed system provides real-time web monitoring of the rack power and environment around a rack. In our experiments, the proposed system improved the power efficiency by over 10% compared to an AC power system providing N+1 redundant power and power monitoring.

키워드

참고문헌

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피인용 문헌

  1. The Design of Marine 24 V DC Uninterruptible Power Supply vol.536, pp.None, 2014, https://doi.org/10.4028/www.scientific.net/amm.536-537.1537