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Power transmission line accurate distance measurement method based on multi-source fault distance measurement result

A technology for fault location and transmission lines, applied in the direction of fault location, fault detection according to conductor type, information technology support system, etc., to achieve the effects of improving efficiency and level, saving manpower, and omitting cumbersome processes

Inactive Publication Date: 2020-10-20
SHANDONG SHANDA CENTURY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of transmission line accurate ranging method based on multi-source fault ranging result, to solve the problems existing in the prior art

Method used

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Experimental program
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Effect test

Embodiment 1

[0021] An accurate distance measurement method for transmission lines based on multi-source fault location results, including traveling wave fault location method, fault wave recording device fault location method, protection device fault location method, firstly based on historical data statistical analysis of various measurement methods The accuracy of the calculation results of the distance method, and then take the historical data of power grid operation and maintenance as a sample, and use the machine learning method with the neural network as the model for model training. After the model training is completed, input the new fault location results into the trained reliable In the model, accurate ranging results of transmission lines are obtained. On the premise of obtaining accurate ranging results of the transmission line, combined with the physical structure and geographic information parameters of the transmission line, the factors considered at the same time include te...

Embodiment 2

[0030]An accurate distance measurement method for transmission lines based on multi-source fault distance measurement results, including traveling wave fault distance measurement method and fault wave recording device fault distance measurement method. Firstly, the accuracy of calculation results of various distance measurement methods is statistically analyzed based on historical data , and then take the historical data of power grid operation and maintenance as a sample, and use the neural network as a model to carry out model training. After the model training is completed, input the new fault location results into the trained reliable model, and obtain the accurate transmission line Ranging results. On the premise of obtaining accurate ranging results of the transmission line, combined with the physical structure and geographic information parameters of the transmission line, the factors also considered include temperature, altitude, tower type, and conductor sag.

Embodiment 3

[0032] An accurate distance measurement method for transmission lines based on the results of multi-source fault distance measurement, including the fault distance measurement method of the fault recording device and the fault distance measurement method of the protection device. Firstly, the accuracy of the calculation results of various distance measurement methods is statistically analyzed based on historical data , and then take the historical data of power grid operation and maintenance as a sample, and use the neural network as a model to carry out model training. After the model training is completed, input the new fault location results into the trained reliable model, and obtain the accurate transmission line Ranging results. On the premise of obtaining accurate ranging results of the transmission line, combined with the physical structure and geographic information parameters of the transmission line, the factors also considered include temperature, altitude, tower ty...

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Abstract

The invention discloses a power transmission line accurate distance measurement method based on a multi-source fault distance measurement result, and belongs to the technical field of power supply. The method comprises any combination of a traveling wave fault distance measurement method, a fault recording device fault distance measurement method and a protection device fault distance measurementmethod. Firstly, the accuracy of calculation results of various ranging methods is analyzed based on historical data statistics, model training is performed by taking power grid operation maintenancehistorical data as a sample and adopting a machine learning method taking a neural network as a model, and after the model training is finished, a newly generated fault positioning result is input into a reliable model obtained through training to obtain an accurate distance measurement result of a power transmission line. According to the invention, accurate distance measurement is carried out based on a power transmission line fault algorithm of machine learning, and the fault distance given in a numerical form is accurately positioned to a tower level, so that a tedious process of manual pole-by-pole troubleshooting can be omitted, manpower, material resources and financial resources are greatly saved, and the efficiency and level of accident processing are effectively improved at the same time.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to an accurate distance measurement method for transmission lines based on multi-source fault distance measurement results. Background technique [0002] With the continuous development of power grids, the construction of smart grids and the development of social economy, the requirements for power supply reliability are getting higher and higher. Transmission lines shoulder the important task of power transmission, and are the main factors affecting the safety, stable operation and power supply reliability of the power grid. The transmission line has been exposed to the harsh geographical environment in the wild for a long time, and it is also in a variety of complex meteorological environments, making it the equipment with the highest failure probability among power equipment. When the unfavorable conditions make the transmission line fault, it will affect the safe operation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/085Y04S10/52
Inventor 张治德徐富祥王月兰隋峰曹宏图蒋振钰于大伟
Owner SHANDONG SHANDA CENTURY TECH
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