Lower Data Center power consumption through use of the climate characteristics of cold regions and inter-regional energy integration

Tsuda, Kunikazu; Tano, Shun’ichi; Ichino, Junko

doi:10.1109/pic.2010.5687931

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, server virtualization is a valid approach for decreasing the electricity consumption of ICT devices [3]. And also, the method to cut electricity use of air conditioner by using outside air of the data center is studied [4].…”

Section: Introductionmentioning

confidence: 99%

Load Dispatching Control of Multiple-Parallel-Converters Rectifier to Maximize Conversion Efficiency

Orihara

Saitoh

Higuchi

et al. 2014

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

-In the context of increasing electric energy consumption in a data center, energy efficiency improvement is strongly emphasized. In a data center, electric energy is largely consumed by DC power supply system, which is based on a rectifier composed by multiple parallel converters. Therefore, rectifier efficiency must be improved for minimizing loss of DC power supply system. Rectifier efficiency can be modulated by load allocation to converters because converter efficiency depends on input AC power. In this paper, we propose a new control method to maximize rectifier efficiency. The method can control load allocation to converters by introducing active power converter control scheme and start-and-stop of converters. In order to illustrate optimal load allocations in a rectifier, a maximization problem of rectifier efficiency is formulated as a nonlinear optimization one. The problem is solved by Lagrangian relaxation method and the computation results provide the validity of proposed method.

show abstract

Section: Introductionmentioning

confidence: 99%