Gallop warning method and system based on electric transmission line of electrical power system

Abstract

The invention provides a gallop warning method and system based on an electric transmission line of an electrical power system. The method comprises the steps of collecting meteorological element data on the electric transmission line of the electrical power system in real time, wherein the meteorological element data comprise temperature, moisture, air pressure, precipitation, wind speed and wind direction; acquiring weather forecast data, corresponding to a warning area, released by a professional meteorological department; acquiring topographic feature data corresponding to the warning area; generating gallop warning information of the warning area according to the meteorological element data, the weather forecast data and the topographic feature data. According to the gallop warning method and system based on the electric transmission line of the electrical power system, warning is achieved before the gallop phenomenon occurs by collecting the meteorological element data, gallop amplitude and wire tension change of the electric transmission line of the electrical power system and then outputting gallop warning information and a corresponding gallop grade according to preset gallop triggering conditions and a preset gallop grade threshold, and then contingency plans and measures can be taken in advance.

Description

technical field [0001] The present invention relates to the technical field of electric power system monitoring, in particular to the early warning technology of the electric power system, specifically a galloping early warning method and system based on the transmission line of the electric power system. Background technique [0002] Galloping is an oscillation phenomenon of the transmission line conductor, which is related to the parameters of the conductor itself, the degree of icing, and the external wind force and wind direction. The hazards caused by galloping in transmission lines mainly include the following two types: phase-to-phase flashover or discharge accidents relative to overhead ground wires caused by large conductor galloping amplitudes; large dynamic loads caused by conductor galloping on insulators, fittings, conductors and towers Impact damage, resulting in partial damage to Shenzhen pole tower collapse and other serious power grid accidents. [0003] In...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned schemes for galloping monitoring and early warning of transmission lines all collect relevant parameters during galloping, and after further processing the parameters, provide early warning for galloping. They are all monitoring and early warning for galloping phenomena that have already occurred, and cannot be realized when galloping occurs. Early warning work is not conducive to the early arrangement of emergency plans and measures

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