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Direct-current power supply system and method

A power supply system, DC current technology, applied in the field of power electronics, can solve problems such as loss of redundancy, IT equipment downtime, etc.

Pending Publication Date: 2021-05-04
DELTA ELECTRONICS (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are multiple windings on the low-voltage AC side of the phase-shifting transformer, and the parallel connection of the low-voltage AC side busbars cannot be used like the traditional DC power supply scheme.
In this way, when the transformer is repaired or one power grid fails, the power supply of downstream connected IT equipment and other equipment will lose redundancy, and some IT equipment will face the risk of downtime

Method used

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Embodiment Construction

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0034] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the description in the accompanying drawings directions for the example described above. It will be appreciated that if the illustrated device is turned over so...

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Abstract

The invention provides a direct-current power supply system and method. The system comprises a first power supply circuit and a second power supply circuit, wherein at least one of the first power supply circuit and the second power supply circuit comprises a phase-shifting transformer, the first power supply circuit comprises N first AC / DC conversion circuits, the second power supply circuit comprises N second AC / DC conversion circuits, N is an integer greater than or equal to 2, and the output sides of the N first AC / DC conversion circuits are connected in parallel with the output sides of the N second AC / DC conversion circuits through direct current busbars in a one-to-one correspondence manner to form N groups of redundant backup circuits. The direct-current power supply system can ensure redundant power supply of the load.

Description

technical field [0001] The present invention relates to the technical field of power electronics, in particular to a DC power supply system and method. Background technique [0002] DC power supply has the characteristics of high efficiency and reliability, so it is more and more widely used in the field of data center power supply. Such as figure 1 As shown, in the traditional DC power supply scheme, the traditional power transformer 101 that converts medium-voltage AC 10kV to low-voltage AC 380V is generally used. On the low-voltage AC 380V side, the double busbars can be connected in parallel through the switch K1, that is, AC is connected in parallel on the secondary side of the transformer. busbar scheme. The output terminals of the traditional DC power supply system A circuit 110 and the traditional DC power supply system B circuit 120 are respectively connected to the two power conversion devices of the load 105, that is, the first power conversion device 103 and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00H02J9/02H02J9/06
CPCH02J1/00H02J9/02H02J9/061H02M1/325H02M5/14H02M7/08H02J3/0073G06F1/30Y02E40/10H01F38/00H02M7/04
Inventor 刘红光孙延龙王欢
Owner DELTA ELECTRONICS (SHANGHAI) CO LTD
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