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 probl

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

Examples

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Example Embodiment

[0035] Example 1

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

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

[0038] 11) Calculate the icing hazard level of the trip point based on the icing days of the historical icing trip point. The classification principle is:

[0039] The number of icing days in the historical icing trip point 1-3 days 4-7 days 7-12 days 13 days or more Hidden danger point level First level Level 2 Level 3 Level 4

[0040] 12) According to the topographic characteristics of the historical ice-coated trip point, whether it is a high mountain, valley,...

Example Embodiment

[0053] Example 2

[0054] In this specific example, according to the disaster monitoring report APP mobile system, the icing line is 110kV Xigong Line 3# Pole Tower, the icing thickness is 7.8mm, and the design icing thickness is 20mm. The satellite inverted the predicted temperature in this area -3℃, the daily rainfall is 5.8mm.

[0055] 1) Determining the level of hidden danger points: by querying the historical 2018 line icing trip records, the line has ice tripping records in December 2013, the number of icing days is 7 days, and it is in the canyon micro-topography area, and the icing of the reporting point can be obtained The hidden danger level is three;

[0056] 2) Determine the monitoring and early warning level: According to the ice thickness and design ice thickness data, the monitoring alarm level is level two; according to the satellite inversion information, the level of the ice growth trend of the monitoring point is level two, and the monitoring of the monitoring poi...

Example Embodiment

[0060] Example 3

[0061] The present invention also provides a multi-source monitoring and early warning system for icing on transmission lines, including a memory, a processor, and a computer program stored in the memory and running on the processor. The processor implements any of the above methods when the computer program is executed. 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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