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Power transmission line icing multi-source monitoring and early warning method and system

A technology for monitoring and early warning and transmission lines, which is applied in the field of electric power engineering, can solve the problems of lack of joint early warning, etc., and achieve the effects of prevention and control, convenient operation, safety and stability

Pending Publication Date: 2020-04-21
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a multi-source monitoring and early warning method and system for icing of power transmission lines, aiming at the storage requirements of large amount of data and high timeliness of electric meteorological satellite images, so as to solve the problem of automatic monitoring of icing monitoring of the existing power grid, manual reporting, and feedback from meteorological satellites. The technical problem of joint early warning from multi-source data such as hazard levels, monitoring data, and ice growth trends is lacking.

Method used

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  • Power transmission line icing multi-source monitoring and early warning method and system
  • Power transmission line icing multi-source monitoring and early warning method and system
  • Power transmission line icing multi-source monitoring and early warning method and system

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Embodiment 1

[0036] Such as figure 1 As shown, the multi-source monitoring and early warning method for transmission line icing of the present invention comprises the following steps:

[0037] S1: According to the historical line icing trip data, obtain the hidden danger points of the transmission line icing disaster situation, and classify the hidden danger points according to the voltage level of the line where the hidden danger points are located, the number of icing days, and terrain characteristics. The specific steps are as follows:

[0038] 11) According to the number of icing days of the historical icing trip point, calculate the icing hidden danger level of the trip point. The grading principle is:

[0039] Icing days of historical icing trip points 1-3 days 4-7 days 7-12 days more than 13 days hidden danger level level one Secondary Level three Level 4

[0040] 12) According to the topographic characteristics of the historical ice-covered trip...

Embodiment 2

[0054] In this specific example, according to the display in the APP mobile system reported by disaster monitoring, the ice-covered line is the 110kV Xigong Line 3# tower, the ice-covered thickness is 7.8mm, and the designed ice-covered thickness is 20mm. -3℃, daily rainfall is 5.8mm.

[0055] 1) Determine the level of hidden danger points: By querying the history of icing trip records in 2018, the line has icing trip records in December 2013, the number of days of icing is 7 days, and it is in the canyon micro-topography area, and the icing of the reported point can be obtained The hazard level is three;

[0056] 2) Determining the level of monitoring and early warning: According to the data of ice thickness and design ice thickness, the level of monitoring and warning is Level 2; according to the satellite inversion information, the level of ice growth trend of the monitoring point is Level 2, and the monitoring point of the monitoring point is calculated. The warning level i...

Embodiment 3

[0061] The present invention also provides a multi-source monitoring and early warning system for icing on transmission lines, which includes a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, any of the above methods can be realized. step.

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Abstract

The invention discloses a power transmission line icing multi-source monitoring and early warning method and system. According to the method, by combining various data sources from power grid icing automatic monitoring, manual reporting and meteorological satellite inversion and the like, coupling correlation analysis of power grid icing multi-source monitoring data is carried out, a power grid icing multi-source monitoring and early warning model integrating icing hidden danger, icing real-time monitoring, icing growth trend and emergency ice melting is established, comprehensive sensing andearly warning of power grid large-range regional icing are achieved, and power grid icing disaster prevention and control are facilitated. The method is high in practicability and convenient to operate, has guiding significance for power transmission line operation personnel in making icing emergency decisions, and plays an important role in maintaining safety and stability of a power grid and reducing disaster losses.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to a multi-source monitoring and early warning method and system for icing on transmission lines. Background technique [0002] By using various sensor technologies, wide-area communication technologies, data information processing technologies and monitoring center server software management technologies, the power grid disaster monitoring system can conduct all-weather and real-time monitoring of the operating status of overhead transmission lines operating in harsh environments, which can effectively reduce Electric power accidents caused by factors such as uneven settlement and slippage of iced conductor tower foundations, iced bridge flashover of insulators, etc., are important technical means to improve the lean level of professional management of transmission lines. [0003] At present, most of the existing transmission line disaster monitoring ...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06Q50/26G06F16/29
CPCG06F16/29G06Q10/0635G06Q50/06G06Q50/265Y04S10/50Y02D10/00
Inventor 李波章国勇徐勋建何立夫罗晶周秀冬
Owner STATE GRID HUNAN ELECTRIC POWER
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