Method for evaluating low noise conductor of uhv ac transmission line

A technology of UHV AC and transmission lines, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., to achieve reasonable project cost, reduce low noise, and control project cost

Inactive Publication Date: 2009-03-18
WUHAN HIGH VOLTAGE RESEARCH INSTITUTE OF STATE GRID
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] With the continuous development of my country's economy, the demand for energy continues to grow, especially the demand for electricity is growing rapidly; and the structure of my country's power grid is difficult to meet this demand

Method used

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Examples

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with examples, but these examples should not be construed as limiting the present invention.

[0013] The present invention provides according to the design scheme or the preliminary design provided by the client, and the concrete method of its evaluation is:

[0014] Step 1: Investigate the status of audible noise in sensitive areas and key areas along the entire route of the 1000kV transmission line: Sensitive areas refer to places where there may be disputes or disputes, and key areas refer to adjacent residential areas, intersections with railways and highways, and Where there have been disputes or disputes in the previous work;

[0015] Step 2: Prediction

[0016] There are two methods to predict the electromagnetic environment of transmission lines, namely, analog measurement and theoretical calculation.

[0017] 1. Analogy measurement: conduct actual measurement of audible noise on o...

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PUM

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Abstract

The invention relates to a method for evaluating the low noise wires of 1000kV ultra-high voltage alternative current transmission lines, comprising an evaluation factor, an evaluation range, an evaluation standard and a measurement method, wherein the evaluation factor means the audible noise; the evaluation range uses the 100 strip regions at two sides of the projections of the edge wires of a transmission line as the audible noise range; the evaluation standard means that the limit value of the audible noise is 52dB(A) and the limit value at populated country is 45dB(A); the measurement method means doing measurement at the projection of the edge wires and the 15m, 20m, 50m and 100m parts outside from the projections. The invention considers the characters of low noise wires of 1000kV transmission lines to provide a reasonable low noise wire evaluation method for 1000kV transmission lines, and the invention can reduce the noise of ultra-high voltage transmission and transformation projects according to the evaluation method, and can reasonably control the project costs.

Description

technical field [0001] The invention belongs to the field of electromagnetic environment of AC power transmission and transformation engineering, and specifically provides a method for evaluating low-noise conductors of 1000kV UHV AC transmission lines. . Background technique [0002] With the continuous development of my country's economy, the demand for energy continues to grow, especially the demand for electricity is growing rapidly; and the structure of my country's power grid is difficult to meet this demand. Due to the extraordinary development of my country's power supply in recent years, the construction of the power grid has seriously lagged behind, the transmission capacity is insufficient, and the contradiction between the uncoordinated development of the power grid and the power supply is very prominent. The State Grid Corporation of China has proposed the strategic measure of building a "strong national grid", and has carried out the construction of 1000kV AC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 邬雄万保权张广洲张小武路遥刘兴发
Owner WUHAN HIGH VOLTAGE RESEARCH INSTITUTE OF STATE GRID
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