Method and system for detecting electric field intensity under high-voltage electrified body

A technology of electric field strength and high voltage charging, applied in electromagnetic field characteristics, measurement devices, measurement of electrical variables, etc., can solve the problems of high false alarm rate, difficulty in distinguishing strong electric fields above 200V and 10kV, and decrease in the accuracy of electric field intensity collection. Achieve the effect of avoiding the influence of potential and shape, improving detection sensitivity, and improving sensitivity

Pending Publication Date: 2021-06-11
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Application Information

AI Technical Summary

Problems solved by technology

If the probe is far away from the overhead charged body or the direction is not suitable, the accuracy of electric field strength collection will decrease
In order to further identify the electric field gradient signal, the conventional single-electrode scheme cannot be realized
[0006] Around the high-voltage charged body, the electric field gradient is more stable. The previous electric field intensity detection is based on the human body as a reference electric field gradient signal detection mechanism. This method is extremely susceptible to interference from the human body's induced electric field, and it is difficult to distinguish between 200V and 10kV. Strong electric field , so the false alarm rate is so high that it has no practical value

Method used

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  • Method and system for detecting electric field intensity under high-voltage electrified body
  • Method and system for detecting electric field intensity under high-voltage electrified body
  • Method and system for detecting electric field intensity under high-voltage electrified body

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Effect test

Embodiment 1

[0043] In this embodiment, according to the working characteristics of the UAV and the distribution characteristics of the electric field generated around the UAV around the high-voltage charged body, the electric field induction method of the UAV is constructed, and a detection system for the electric field intensity under the high-voltage charged body is proposed, including A plurality of probes arranged on the UAV, and UAV electric field strength detection devices respectively connected to the plurality of probes, wherein the detection directions of the plurality of probes are all different. The UAV electric field strength detection device receives the sensing signals of the multiple probes in real time, and determines the electric field distribution around the UAV.

[0044] In terms of probe design, in view of the complex electric field environment at the high-voltage construction site, the volume limitation of the carrier, and the convenience of implementation, the method ...

Embodiment 2

[0071] On the basis that Embodiment 1 provides a detection system for electric field strength under a high-voltage charged body, this embodiment provides a method for detecting electric field strength under a high-voltage charged body, which specifically includes:

[0072] (1) Obtain in real time the induced electromotive force on each electrode in each probe arranged on the drone, and calculate the potential difference; the probes are all double-electrode designs;

[0073](2) Determine the electric field gradient distribution in each direction of the UAV according to the voltage difference measured by each probe; specifically, according to the voltage difference between the two electrodes of each probe, the electric field gradient in this direction can be restored, combined The gradient distribution of the electric field around the drone can be obtained.

[0074] (3) Determine the probe with the largest voltage difference. If the electric field gradient obtained by the probe ...

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Abstract

The invention discloses a method and a system for detecting the electric field intensity under a high-voltage electrified body. The system comprises a plurality of probes arranged on an unmanned aerial vehicle and an unmanned aerial vehicle electric field intensity detection device connected with the plurality of probes respectively, and the detection directions of the plurality of probes are different; and the unmanned aerial vehicle electric field intensity detection device receives sensing signals of the plurality of probes in real time and determines electric field distribution around the unmanned aerial vehicle. According to the invention, the intensity of the nearby electric field can be sensed more accurately in the process that the unmanned aerial vehicle inspects the high-voltage live-line equipment, so that the line contact accident is avoided.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle inspection, and in particular relates to a method and system for detecting electric field strength under a high-voltage charged body. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] In order to avoid wire-touching accidents during the inspection process of the UAV, the distance to the overhead line can be judged by the principle of electric field detection. The electric field is affected by many factors such as the height of the ground and the distribution of charged objects in the field, and the distribution is not balanced. Therefore, it is necessary to analyze the distribution of the electric field of the UAV around the high-voltage charged body. According to the analysis of the high-voltage electric field distribution, the electromagnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/0871
Inventor 魏振陈明安树怀孙恩德赵先超朱晓东段京平彭博郭英雷孔泊涵
Owner STATE GRID SHANDONG ELECTRIC POWER
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