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A Climate Correction Method for Synthetic Electric Field of DC Transmission Lines

A technology of direct current transmission line and synthetic electric field, which is applied in the field of correction, can solve problems such as equipment failure to operate normally, and achieve the effects of ensuring environmental friendliness, wide application range, and accurate theoretical calculation methods

Active Publication Date: 2016-02-24
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the combined electric field exceeds a certain level, people under the polar wire may experience discomfort such as discharging to a grounded object, and equipment with poor shielding may not operate normally

Method used

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  • A Climate Correction Method for Synthetic Electric Field of DC Transmission Lines
  • A Climate Correction Method for Synthetic Electric Field of DC Transmission Lines
  • A Climate Correction Method for Synthetic Electric Field of DC Transmission Lines

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Such as image 3 as shown, image 3 It is a flow chart of the climate correction method for the synthetic electric field of a direct current transmission line provided by the present invention. The synthetic electric field measuring instrument used in the method includes: an electric field measuring probe and a data acquisition unit; the electric field measuring probe and the data acquisition unit pass a cable Connection; the value of the measured DC electric field can be directly read out through the data acquisition unit, and the measurement probe signal can also be introduced into the multi-channel small signal measurement system to automatically collect the synthetic electric field data;

[0029] The method comprises the steps of:

[0030] A. Collect the synthetic electric field data: the present invention i...

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Abstract

The invention relates to a correction method, in particular to a climate correcting method of a synthetic electric field of a direct current transmission line. A synthetic electric field measuring instrument used in the method comprises an electric field measuring probe and a data collection unit which are connected through a cable. The method comprises the following steps that A data of the synthetic electric field are collected; B the collected data of the synthetic electric field are restored into synthetic electric field intensity values; C the synthetic electric field intensity values are monitored; and D modification values of the synthetic electric field intensity values along humidity changes are obtained through statistic analysis. The climate correcting method is used for correcting the synthetic electric field according to different environment humidity on the basis of a classical theory calculation method of the synthetic electric field, enables an empirical formula to be accurate and wide in applicable scope, and guarantees environmentally friendly of the direct current transmission line.

Description

technical field [0001] The invention relates to a correction method, in particular to a climate correction method for a synthetic electric field of a direct current transmission line. Background technique [0002] When the DC transmission line is running, corona discharge will be generated. The electric field generated on the ground is called the synthetic electric field, which includes two parts: the DC nominal electric field and the space ion flow field generated by the corona discharge. When the combined electric field exceeds a certain level, people under the polar wire may experience discomfort such as discharging to a grounded object, and equipment with poor shielding may not operate normally. Therefore, the corresponding national standards limit the combined electric field generated by DC transmission lines. [0003] The DC nominal electric field is related to the voltage applied to the conductor and the conduction form, and is not affected by environmental factors. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/14
Inventor 郭剑赵鹏韩辉赵录兴
Owner CHINA ELECTRIC POWER RES INST
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