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Power grid line-tracking magnetic guidance method based on orthogonal three-position magnetic detection

A three-position, magnetic detection technology, applied in fault location, surveying and navigation, navigation and other directions, can solve the problems of low efficiency and accuracy of power grid line-finding guidance, slow power grid fault detection and repair efficiency, etc.

Active Publication Date: 2017-05-31
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Problems solved by technology

[0007] The problem solved by the technology of the present invention is: the characteristic modeling of the magnetic field line of the power grid is established, and the target magnetic field is separated from the environmental magnetic field such as the earth's magnetic field; Magnetic guidance method for power grid line hunting with three-position magnetic detection
[0009] Aiming at the outstanding problems of low efficiency and accuracy of wire-finding guidance in the existing power grid and unable to meet actual needs, the present invention explores a magnetic guidance method for wire-hunting of the power grid based on orthogonal three-position magnetic detection

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  • Power grid line-tracking magnetic guidance method based on orthogonal three-position magnetic detection
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  • Power grid line-tracking magnetic guidance method based on orthogonal three-position magnetic detection

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[0054] specific implementation plan

[0055] The implementation object of the present invention is the power grid, and the schematic diagram of the specific implementation scheme is as follows figure 1 As shown, the specific implementation steps are as follows:

[0056] (1) Multi-position three-dimensional magnetic field measurement in the grid magnetic field line mode

[0057] In order to realize the magnetic field measurement of a certain place, theoretically only a three-axis magnetic sensing device is needed. However, this measurement method cannot separate the geomagnetism from other background and interfering magnetic fields, which is likely to cause misleading; in addition, this method cannot convert the magnetic field lines and their gradient information in real time. Therefore, this project plans to adopt a three-position and three-axis quantum magnetic sensing scheme based on the grid magnetic field line mode. The schematic diagram of the principle is as follows ...

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Abstract

The invention provides a power grid line-tracking magnetic guidance method based on orthogonal three-position magnetic detection to solve the prominent problems that existing power grid line-tracking guidance efficiency and accuracy are low, and practical requirements cannot be met. The method includes the steps: firstly, building an orthogonal three-position magnetic detection structure, detecting the magnetic field intensity of each position and acquiring the magnetic line direction and the gradient of a magnetic field according to the magnetic field intensity of each position; building the motion equation of a detection aircraft relative to an inertial coordinate system, and building the power grid line-tracking magnetic guidance method of the aircraft according to the detected magnetic line direction and the detected magnetic field gradient. The method can be used for high-precision terminal guidance of power grid fault detection, and has huge application values for rapid repair of a faulted power grid.

Description

technical field [0001] The invention relates to a magnetic guidance method for wire finding of a power grid based on orthogonal three-position magnetic detection, which can be applied to terminal guidance based on the magnetic field information of the power grid. [0002] technical background [0003] Power grids are closely related to people's lives. At present, my country has formed six inter-provincial power grids in North China, Northeast China, East China, Central China, Northwest China and South China. With the increasing expansion of power grids, the daily inspection and maintenance workload of power grids is also increasing. In view of the operation management mode and conventional operation methods of high-voltage transmission lines, the existing line-hunting methods have many shortcomings such as high cost, low efficiency, and poor accuracy. How to improve the efficiency and accuracy of line-hunting guidance and minimize the The impact of power grid failure on people'...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G01C21/20G01R31/08
CPCG01C21/00G01C21/20G01R31/086
Inventor 任元吕永申董海峰苗继松姚静波陈晓岑
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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