DC power supply system
A technology of power supply system and direct current, applied in parallel operation of direct current power supply, direct current circuit of intermediate alternating current, load supply circuit, etc., can solve the problems of high line cost and loss, complicated wiring, long line length, etc., and reduce the complexity of lines , Improve stability and reliability, reduce line cost and loss
Active Publication Date: 2021-07-02
DELTA ELECTRONICS INC
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Problems solved by technology
[0004] In the existing scheme, the input of the power supply and distribution system of the data center is connected to the power frequency transformer group, and the power frequency transformer group is connected to the rectifier group. The redundant configuration of different floors is very complicated, and the wiring between the two is also very complicated. The length of the line is too long, resulting in high cost and loss of the line, and the entire power supply system is lacking in efficiency and reliability.
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[0056] 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.
[0057] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of...
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The present invention provides a DC power supply system, which is characterized in that it includes at least one first input source and one second input source, a phase-shifting transformer group, a rectifier group and a monitoring module; the phase-shifting transformer group is used to use the first input source or The medium-voltage alternating current input by the second input source is converted into low-voltage alternating current and then output; the rectifier group is used to rectify the low-voltage alternating current output by the corresponding phase-shifting transformer into low-voltage direct current for output; the transformer group and the rectifier group are both arranged in a power supply box / In the cabinet, or the phase-shifting transformer group and the rectifier group are respectively arranged in two adjacent power supply boxes / cabinets; the monitoring module monitors the working status of the phase-shifting transformer group and the rectifier group. By adopting the DC power supply system of the present invention, the phase-shifting transformer, rectifier and monitoring module are organically integrated into a modular system, which reduces line transmission loss and wiring costs, and monitors each module component in the system in real time through the monitoring module to improve the stability of the system operation sex.
Description
technical field [0001] The invention relates to the technical field of power supply and distribution, in particular to a DC power supply system. Background technique [0002] The power capacity of a large data center is generally at the tens of MW level. Because of its load characteristics, the power supply and distribution of a large data center has high reliability requirements to ensure that the entire computer room can reliably supply power when the AC power grid fails or is abnormal. At the same time, high power supply efficiency is also required to reduce the cost of operation and maintenance of the computer room. [0003] The current commonly used data center power supply and distribution system architecture is: the grid is combined with a generator, and AC UPS (including batteries) or DC UPS (including batteries) are used to supply power to data center equipment. In order to further improve the reliability of power supply, generators, UPS and power distribution unit...
Claims
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IPC IPC(8): H02J1/10
CPCH02J1/10H02J1/002H02J9/067G01R31/3842H02J7/0063H02J7/04H02J9/061
Inventor 郭兴宽白新民
Owner DELTA ELECTRONICS INC