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Workshop-level centralized power supply system

A centralized power supply and workshop technology, applied in flexible AC transmission systems, control/regulation systems, electrical components, etc., can solve problems such as low energy conversion efficiency and difficulty in overcoming high-order harmonic interference in workshop power distribution, and achieve simple and reliable structure , Realize the effect of integrated heat dissipation and easy replacement

Pending Publication Date: 2021-11-09
湖北春田电工技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a workshop-level centralized power supply system, which can solve the problems that the existing workshop power distribution is difficult to overcome high-order harmonic interference and low energy conversion efficiency

Method used

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  • Workshop-level centralized power supply system
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  • Workshop-level centralized power supply system

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described below with reference to the accompanying drawings and examples.

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some of the embodiments of the present invention, but not all of them, and should belong to the protection scope of the present invention.

[0033] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are applicable to distinguish similar objects, and are no...

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Abstract

The invention discloses a workshop-level centralized power supply system, and the system comprises a phase-shifting transformer which comprises a group of three-phase primary windings and corresponding multiple groups of three-phase secondary windings, wherein the three-phase primary windings are connected with a medium-voltage power distribution network, and the multiple groups of three-phase secondary windings are staggered in phase; a rectifying circuit which comprises a plurality of rectifiers which are connected in parallel, wherein each rectifier is correspondingly connected with one three-phase secondary winding and outputs a direct current through the direct current buses at the two sides through a capacitor filtering loop; and a converter circuit which comprises a plurality of converters sharing the direct current buses, wherein each converter comprises an IGBT bridge type module, and the midpoint of each IGBT bridge type module is output through a reactor. According to the present invention, the problems that high-order harmonic interference is difficult to overcome and the energy conversion efficiency is low in the existing workshop power distribution, can be solved.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a workshop-level centralized power supply system. Background technique [0002] In factories and workshops in various industries, the power load is becoming more and more diversified, and the technical performance requirements for power supplies are also getting higher and higher; secondly, the large-scale use of distributed new energy and the application of new smart grids also have a great impact on workshop-level power distribution. More requirements are put forward, and it is difficult for traditional workshop power distribution to overcome problems such as high-order harmonic interference, low energy conversion efficiency, and power safety. Therefore, proposing a power supply system capable of avoiding high-order harmonic interference and high energy conversion efficiency is an urgent problem to be solved at present. Contents of the invention [0003] In view of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/01H02M7/06H02M3/335H02M7/5387H02M1/12H02M1/44H05K7/20
CPCH02J3/00H02J3/01H02M7/06H02M3/33584H02M7/5387H02M1/12H02M1/44H05K7/2089Y02E40/10Y02E40/40Y02P80/10
Inventor 余龙海廖育武余腾飞王培元朱劲松朱道唯严刚
Owner 湖北春田电工技术有限公司
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