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AC/DC mixed transformer substation

An AC/DC hybrid and substation technology, applied in electrical components and other directions to ensure safety, save floor space, and reduce equipment

Inactive Publication Date: 2014-10-22
姚锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the problem of how to connect DC power grids formed by DC loads such as DC power generation new energy power stations and DC power supply data centers to each other under the condition that the existing power system is dominated by AC power grids. Conversion, flexible development, and the formation of AC-DC hybrid power grids

Method used

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  • AC/DC mixed transformer substation

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Embodiment Construction

[0031] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[0032] attached figure 1 It is a schematic configuration wiring diagram of an AC / DC hybrid substation according to an embodiment of the present invention. attached figure 1 Among them, the electric energy of the AC power station passes through the AC incoming line circuit 11, connects to the high-voltage AC busbar 12 through the AC circuit breaker 13, and then connects the primary winding of the AC transformer 15 through the AC circuit breaker 14; after the voltage conversion, the AC transformer 15 The secondary winding is connected to the low-voltage AC busbar 16 through the AC circuit breaker 17 , and then distributed to the AC outlet circuit 19 through the low-voltage circuit breaker 18 . The electric energy of the DC power station is connected to the DC bus 22 through the DC circuit breaker 23 through the DC incoming line circuit 21, an...

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Abstract

The present invention relates to an AC / DC mixed transformer substation, in particular to a transformer substation. The AC / DC mixed transformer substation has a high voltage AC incoming and outgoing line loop and a high voltage DC incoming and outgoing line loop simultaneously, and the high voltage AC incoming and outgoing line loop and the high voltage DC incoming and outgoing line loop are connected with a high voltage AC bus and a high voltage DC bus respectively. The conversion of voltage grades is carried out by an AC transformer or a DC transformer, and the electric energy conversion and electric energy distribution are realized. The transmission and conversion of the electric energy are realized between the AC bus and the DC bus via an AC / DC converting device. The AC / DC mixed transformer substation comprises at least one AC incoming and outgoing line loop, at least one high voltage DC incoming and outgoing line loop, at least one AC bus, at least one DC bus, at least one electric conversion device for voltage grade conversion, and at least one AC / DC converting device.

Description

technical field [0001] The present invention relates to an AC-DC hybrid substation, in particular to a substation, which has a high-voltage AC incoming and outgoing line circuit and a high-voltage DC incoming and outgoing line circuit, respectively connected to a high-voltage AC bus or a high-voltage DC bus, through an AC transformer or The DC transformer converts the voltage level, realizes the conversion and distribution of electric energy, and realizes the transmission and conversion of electric energy through the AC / DC conversion device between the AC bus and the DC bus. which include, [0002] ●At least one AC incoming and outgoing circuit, and at least one DC incoming and outgoing circuit; [0003] ●At least one AC bus, and at least one DC bus; [0004] ●At least one power conversion device for voltage level conversion, which can be an AC transformer or a DC transformer, or can have both an AC transformer and a DC transformer; [0005] ●At least one AC / DC conversion d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J5/00
Inventor 姚锋
Owner 姚锋
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