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Power-taking device based on insulated overhead ground wire

A technology of power-taking devices and overhead ground wires, which is applied in the direction of circuit devices and electrical components, can solve the problems of increased power loss of transmission lines, and achieve the effect of stabilizing the power base

Active Publication Date: 2018-04-06
STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generation of two kinds of current will increase the additional power loss of the transmission line

Method used

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  • Power-taking device based on insulated overhead ground wire
  • Power-taking device based on insulated overhead ground wire
  • Power-taking device based on insulated overhead ground wire

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0023] see figure 1 , figure 2 , image 3 , Figure 4 The tower 5 is provided with an insulated overhead ground wire 1, an overhead ground wire 2, a first wire 3, and a second wire 4, wherein the first wire 3 and the second wire 4 are power transmission lines. The power-taking device based on the insulated overhead ground wire, its insulated overhead ground wire 1 includes a wire arranged on the electric tower 5 and an insulated terminal that separates the wire into multiple sections, and the power-taking device includes: a wire that is connected to a section of wire and obtains the first current The autotransformer transforms the first current to obtain the second current; the filter connected with the autotransformer filters the second current to obtain the third current; the electric valve connected to the filter obtains the third current based on the first The three currents generate the first air flow; the air pressure regulating valve connected with the electric air ...

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Abstract

The invention discloses a power-taking device based on an insulated overhead ground wire. The power-taking device includes: an autotransformer connected to a section of the wire to obtain a first current, and the first current is obtained after a voltage transformation process. A second current; a filter connected to the autotransformer, which filters the second current to obtain a third current; an electric gas valve connected to the filter, which generates a first airflow based on the third current ; The air pressure regulating valve connected to the electric air valve, based on the first air flow to stabilize the pressure, output a stable second air flow; the air motor connected to the air pressure regulating valve generates rotation based on the second air flow; A generator coupled to the air motor generates electrical current based on the rotation. The conversion of induced current-mechanical energy-current through insulated overhead ground wires solves the problem that the transformation ratio of the autotransformer cannot be too large, and the induced current is unstable due to changes in the load of the transmission line and the external environment.

Description

【Technical field】 [0001] The invention relates to the field of electric power, in particular to a power-taking device based on insulated overhead ground wires. 【Background technique】 [0002] According to the current domestic electric power capacity estimation, the national annual electric energy loss will reach tens of billions of kWh. Part of the electric energy is lost by the overhead wire, and most of the induced current flows into the earth from the overhead ground wire. [0003] There are electrostatic coupling and electromagnetic coupling between the overhead ground wire and the transmission line. Under normal circumstances, the induced voltage and current on the ground wire mainly change with the distance from the ground wire to each phase wire, the load current on the three-phase wire and the asymmetry of the wire. And change. The grounding method of the ground wire can be divided into: 1) The ground wire and the OPGW are grounded base by base; 2) The ground wire ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10
Inventor 王峰渊陈达孙世平谢逢喜金希龙应国德金益迥李权黄圣琦吕鑫朱文兵王裘潇李文辉陈林峰张圆刘光刘欢吴永奇叶世钊万广雷
Owner STATE GRID ZHEJIANG ELECTRIC POWER COMPANY TAIZHOU POWER SUPPLY
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