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Direct current power supply system for data center

A technology of power supply system and data, applied in the direction of DC circuit of intermediate AC, parallel operation of DC power supply, electrical components, etc., can solve the problem that a single DC bus cannot take into account line loss and battery cell voltage, solar energy and other renewable energy access difficulties , UPS power supply efficiency is low and other issues, to achieve the effect of easy efficient and flexible access, improve power utilization, reduce volume and cost

Inactive Publication Date: 2017-01-04
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing DC power supply system has problems such as low UPS power supply efficiency, difficulty in accessing renewable energy such as solar energy, low utilization efficiency, and the inability of a single DC bus to take into account line loss and battery cell voltage.

Method used

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Embodiment Construction

[0017] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, the preferred embodiment of the data center DC power supply system involved in the present invention includes first and second AC grids 1 and 11, some IT equipment 7, some fans 8 and a DC power supply system, wherein:

[0019] The preferred implementation of the DC power supply system includes a medium-voltage AC bus 2, a solid-state transformer 3, a high-voltage DC bus 4, a DC voltage conversion module 5, a low-voltage DC bus 6, a renewable energy power generation system 13, a distributed power supply 14, and a UPS system 9 . In this embodiment, the solid-state transformer 3 is connected to the medium-voltage AC bus 2, wherein: the voltage of the medium-voltage AC bus 2 is between 1kV-10kV, and the solid-state transformer 3 converts AC / DC power (possibly with a corresponding DC / DC power conversion) uni...

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Abstract

The invention discloses a direct current power supply system for a data center. The direct current power supply system comprises a first alternating-current power grid (1), a solid-state transformer (3), a set of UPS system (9), a plurality of IT loads (7), a plurality of fan loads (8) and a direct current power supply system; normally, the power supply for the IT loads (7) and fan loads (8) is performed by the first alternating-current power grid (1) through high-tension direct current bus (4), and charged by a energy storage battery (12); in the event of power failure due to the faults of the first alternating-current power grid (1) or the high-tension direct current bus (4), uninterruptible power supply for the IT loads (7) and fan loads (8) is realized by the energy storage battery (12). Compared with the prior art, the direct current power supply system for the data center greatly reduces the volume of a transformer, the volume of a distribution wire and cost, is convenient for flexible access of renewable energy sources, and further improves the utilization rate of electrical energy; the system configuration is flexible, so it is beneficial to great reduction of the battery charge and discharge loss, and power supply system efficiency of the data center is improved.

Description

technical field [0001] The invention relates to the field of data center construction, in particular to a DC power supply system for a data center. Background technique [0002] With the advancement of IT technology and the popularization of intelligent terminal equipment, the number and scale of data centers using cloud computing technology need to increase significantly. As a key link in infrastructure construction, the power platform of data centers determines to some extent Data center security operations and availability. Not only that, the environmental protection and energy saving of the power platform is also an important support for reducing the PUE index of the computer room and realizing energy saving and emission reduction. For the majority of data center builders and managers, what kind of power supply solution to use, what voltage level to use for power supply, and whether the preliminary planning is reasonable is very important. It must not only meet the requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/10H02J9/04
CPCH02J1/002H02J1/10H02J9/04Y02B10/70
Inventor 王议锋王成山韩富强杨良
Owner TIANJIN UNIV
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