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Out-of-phase power line carrier system for alternating-current transmission line

A power carrier and AC line technology, applied in the field of communication, can solve the problem of inability to use the power carrier communication scheme, and achieve the effect of broadening the scope of application

Active Publication Date: 2015-11-11
山东三晶照明科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, power carrier communication can only be applied in lines directly connected to power lines at present, and power carrier communication solutions cannot be used between different phases of three-phase AC lines

Method used

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  • Out-of-phase power line carrier system for alternating-current transmission line
  • Out-of-phase power line carrier system for alternating-current transmission line

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Embodiment Construction

[0009] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all indicate the relationship between and.

[0010] Such as figure 1 As shown, a non-in-phase power carrier system of an AC line provided by an embodiment of the present invention includes a three-phase AC line; the three-phase AC line is equipped with a data coupling unit on each phase line;

[0011] There are two data coupling units on the A-phase line, and the power-side data coupling unit includes the A-phase line-side transformer Ta1 and the A-phase line-side coupling capacitor Ca1 for coupling the power carrier communication data to the A-phase line , the data coupling unit on the load Ua side includes an A-phas...

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PUM

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Abstract

The invention discloses an out-of-phase power line carrier system for an alternating-current transmission line, relates to the technical field of communication, and aims to realize power line carriers among out-of-phase power lines. The system comprises a three-phase alternating-current transmission line, wherein the three-phase alternating-current transmission line is provided with data coupling units on at least two out-of-phase phase lines; each data coupling unit comprises a line side transformer and a line side coupling capacitor for coupling power line carrier communication data onto the phase lines; and an inter-line coupling capacitor is connected between the out-of-phase phase lines on which the data coupling units are arranged. The system provided by the invention is suitable for power carrier communication of the alternating-current transmission line.

Description

technical field [0001] The invention relates to communication technology, in particular to a technology of a non-in-phase power carrier system of an AC line. Background technique [0002] Power carrier communication has been widely used in low-voltage AC power grids. In the low-voltage AC power grid, the power carrier mode is as follows: figure 2 as shown, figure 2 AC is the AC voltage source, and Ls21 and Ls22 are equivalent reactances. The data of the power carrier communication is coupled to the power line through the transformer T21 and capacitor C21 on the power supply side, and coupled to the power line through the transformer T22 and capacitor C22 on the load U21 side. . [0003] However, power carrier communication can only be applied in lines directly connected with power lines at present, and power carrier communication solutions cannot be used between different phases of three-phase AC lines. Contents of the invention [0004] In view of the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54
Inventor 叶阳
Owner 山东三晶照明科技有限公司