Electric power line fault point location method and detection terminal, master station and location system thereof

A technology of power line and positioning method, applied in the directions of fault location, measuring electricity, measuring device, etc., can solve the problem that the basic requirements of power line fault location cannot be met, the power line cannot be quickly restored to power transmission, safe and stable operation, and fault location cannot be satisfied. Accuracy and other problems to achieve the effect of reducing the intensity of fault line inspection, saving manpower and material resources, and improving operational reliability

Inactive Publication Date: 2017-06-16
李庆忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional power line fault location methods such as impedance method, fault analysis method (power frequency parameter method), traveling wave method, etc., are all based on the power line parameter theory and traveling wave propagation theory, and consider the structural characteristics of the line for detection and signal analysis and location Fault point, these fault location methods often need to be corrected for the specific conditions of different lines, and are easily affected by signal propagation attenuation and interference, resulting in inaccurate fault

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  • Electric power line fault point location method and detection terminal, master station and location system thereof

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Embodiment 1

[0039] Embodiment 1: a kind of power line fault location method of the present invention comprises:

[0040] Step 1. A plurality of detection terminals installed at known positions related to the relevant power line path detect physical quantities at the known positions that can reflect the characteristics of short-circuit faults of power lines and parameters related to physical quantities related to the operating state of power lines data,

[0041] The known positions related to the path of the power line include: the position on the power line tower, the position vertically projected on the path of the power line or the position above the ground near the path, and the position that can reflect the short-circuit fault characteristics of the power line can be detected Other locations for parameters of physical quantities and physical quantities related to the operating state of power lines,

[0042] Generally, the detection device is installed on the power line tower, and its...

Embodiment 2

[0063] Embodiment 2: On the basis of using embodiment 1 to locate, there are other fault location methods in this embodiment.

[0064] The physical quantities that can reflect the short-circuit fault characteristics of power lines and the physical quantities related to the operating state of power lines also include: atmospheric pressure, ground current flowing through the grounding channel of power line towers, and visible light generated by arc discharge caused by grounding or short-circuiting of power line conductors , and / or, infrared, and / or, ultraviolet.

[0065] A power line fault will generate a strong arc discharge at the fault point, and the air in the arc discharge path will suddenly heat up, making its temperature as high as 15,000-20,000°C, causing the air to expand rapidly, and the air pressure near the passage can increase to 100 Above atmospheric pressure.

[0066] A power line fault will generate a strong arc discharge at the fault point, emitting visible lig...

Embodiment 3

[0078] Embodiment 3: A detection terminal, a master station, and a positioning system using the method for locating power line fault points of the present invention.

[0079] The detection terminal adopting the power line fault location method of the present invention includes a sensor component, a data acquisition component, a data storage component, a control component, a global satellite positioning system component, a clock calibration component, and a communication component,

[0080] The sensor component is used to detect the physical quantity that can reflect the short-circuit fault characteristics of the power line at the installation of the detection terminal and the physical quantity related to the operating state of the power line, including one or more of the following sensors: magnetic field sensor, sound sensor, air pressure sensor , a Rogowski coil, a visible light camera, a fisheye camera, an infrared camera, a visible light sensor, an infrared sensor, an ultrav...

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Abstract

The invention provides an electric power line fault point location method and a detection terminal, a master station and a location system thereof. The detection terminal uses current, sound, shock wave, magnetic field, infrared ray, ultraviolet ray, visible light, air pressure and other sensors to detect physical quantity capable of reflecting electric power line short circuit fault characteristics and parameter data of the physical quantity related to the electric power line operation state and locally recognize the fault of the electric power line and determine fault time. After the detection terminal recognizes the fault of the related electric power line, the detected data are transmitted to the location master station. The location master station comprises a data receiving component, a data storage component, a data processing component and a human-computer interaction component. The position of the electric power line fault point is calculated according to the data provided by the detection terminal and the position of the detection terminal corresponding to the data so as to realize timely and accurate location of the electric power line fault and overcome the defects of the fault location system in the background technology.

Description

technical field [0001] The invention relates to a method for locating a power line fault point, a detection terminal, a master station, and a locating system. Background technique [0002] The power line is a basic part of the power system and is an intermediate link in the transmission and distribution of electric energy. The safe and stable operation of the power system is of great significance to the development of the national economy, social public order and normal life order. Due to the wide distribution of power lines, Often faced with the influence of various geographical environments and climate environments, it is the weak link of the power system, especially the high-voltage, ultra-high voltage and ultra-high voltage power lines have long distances, wide distribution, diverse geographical environments, and complex meteorological conditions. Flashover may occur under harsh weather and environmental conditions such as pollution, pollution, etc., resulting in short-c...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01R31/12
CPCG01R31/08G01R31/1272
Inventor 王一雯李巧妹李庆忠王本明王焕
Owner 李庆忠
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