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Journal Article Rack-Level DC Power Solution for Volume Servers
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Authors
Won-Ok Kwon, Hae-Moon Seo, Pyung Choi
Issue Date
2010-12
Citation
ETRI Journal, v.32, no.6, pp.940-949
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.10.1510.0060
Project Code
09MS2400, A Development of Cost Effective and Large Scale Global Internet Service Solution, Han Namgoong
Abstract
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. © 2010 ETRI.© 2010 INFORMS.
KSP Keywords
Ac power system, Conventional methods, Data center, Low load, Optimal power control, Power Efficiency, Power control(PC), Power control method, Power infrastructure, Power monitoring, Real-time Web