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Combined structure for converting single-phase electricity into three-phase electricity

A three-phase power, single-phase power technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., to achieve the effect of easy implementation and good versatility

Pending Publication Date: 2020-01-03
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined single-phase electricity to three-phase electricity structure, which can effectively solve the technical problems when single-phase users need three-phase electricity

Method used

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  • Combined structure for converting single-phase electricity into three-phase electricity
  • Combined structure for converting single-phase electricity into three-phase electricity
  • Combined structure for converting single-phase electricity into three-phase electricity

Examples

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Embodiment 1

[0028] Such as figure 1 As shown, the embodiment of the present invention provides a combined single-phase electricity to three-phase electricity structure, including the transmission line L A , isolation transformer IT, three-port power converter SC and single-phase transformer T; transmission line L A Connect the P terminal of the IT input terminal of the isolation transformer and the a terminal of the T input terminal of the single-phase transformer respectively, and the Q terminal of the IT input terminal of the isolation transformer is connected with the k terminal of the T input terminal of the single-phase transformer; the Q terminal of the isolation transformer IT is connected with the T input terminal of the single-phase transformer Terminal K of the terminal is grounded respectively; Terminal M and N of the output terminal of the isolation transformer IT are respectively connected to terminals R and S of the input terminal of the three-port power converter SC; end K...

Embodiment 2

[0035] Such as figure 1 As shown, the embodiment of the present invention provides a combined single-phase electricity to three-phase electricity structure, including the transmission line L A , isolation transformer IT, three-port power converter SC and single-phase transformer T; transmission line L A Connect the P terminal of the IT input terminal of the isolation transformer and the a terminal of the T input terminal of the single-phase transformer respectively, and the Q terminal of the IT input terminal of the isolation transformer is connected with the k terminal of the T input terminal of the single-phase transformer; the M terminal and the N terminal of the IT output terminal of the isolation transformer are respectively sequentially Connect with the R terminal and S terminal of the SC input terminal of the three-port power converter; connect the K terminal of the output terminal of the single-phase transformer T with the K terminal of the SC output terminal of the th...

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Abstract

The invention discloses a combined structure for converting single-phase electricity into three-phase electricity, and relates to the technical field of power grid power supply and distribution. Powertransmission lines are connected to the P terminal of the input end of an isolation transformer and the terminal a of the input end of a single-phase transformer, and the terminal Q of the input endof the isolation transformer is connected with the terminal k of the input end of the single-phase transformer; the terminal M and the terminal N of the output end of the isolation transformer are respectively connected with the terminal R and the terminal S of the input end of a three-port power converter sequentially; the terminal K of the output end of the single-phase transformer is connectedwith the terminal K1of the output end of the three-port power converter; and the phase A, the phase B and the phase C of a three-phase power are connected with a low-voltage power distribution networkwith a grounded neutral point.

Description

technical field [0001] The invention relates to the technical field of electric power grid power supply and distribution. Background technique [0002] Users in the field of low-voltage power distribution in my country generally use single-phase power supply. When users need to use three-phase power, they need to re-erect power lines, which is very troublesome and takes a long time; Two-phase transmission lines, single-phase transformers are connected to users, which is more economical and does not take up space, but some users need three-phase power. In particular, the user needs to use the three-phase power supply for a short period of time due to special reasons, and the time for erecting a new three-phase line is not allowed. If the power quality of the grid allows, the three-phase power supply can be provided relatively easily, which will have a greater impact economic and social value. [0003] In the power distribution system, due to long-term mechanical force, elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/18H02M5/14H02M5/458
CPCH02J3/00H02J3/1842H02M5/14H02M5/4585Y02E40/30
Inventor 易东李群湛黄小红解绍锋郭锴张丽艳
Owner SOUTHWEST JIAOTONG UNIV
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