System and method for pre-warning of typhoon risks of overhead transmission lines of grid

Abstract

A system for pre-warning of typhoon risks of overhead transmission lines of a grid comprises a typhoon live information presentation module and a typhoon forecasting information module, wherein the typhoon live information presentation module and the typhoon forecasting information module are externally connected with a weather bureau through a data private network provided with firewalls respectively; relevant data coming from the weather bureau are received when a typhoon crosses a 24-hour warning line of a sea; the used data are selected and calculated by the typhoon forecasting information module, and are calculated by a pre-warning data analysis module; and finally, the data are transmitted to a typhoon risk pre-warning module of the grid for comprehensive data processing, and a risk line set and pre-warning grades of the risk line set are output to the presentation module through judgment of the comparison between the wind speed and the designed wind speed. The invention further comprises a method for pre-warning of typhoon risks of overhead transmission lines of the grid by using the system. The system and the method are applicable to an electrical power system universally, in particular, power transmission and distribution networks in coastal areas, so that capacity of the grid for adapting to meteorological disasters which occur frequently day by day is improved; the trip-out rate of lines under a typhoon environment is reduced, and the safe and stable power supply of power transmission and distribution line channels is guaranteed.

Description

technical field [0001] The invention relates to a typhoon risk early warning system for an overhead power transmission line of a power grid. The invention also relates to a method for early warning of typhoon risks on overhead power transmission lines of power grids by using the system. Background technique [0002] Overhead transmission lines have a large power supply capacity, many distribution points and a wide area, and are more susceptible to natural disasters such as typhoons. Once the power is cut off, it may affect the stability of the grid structure, and the worst will even lead to large-scale power outages. The national economy has had a serious impact, and the consequences are unimaginable. How to effectively prevent the impact of typhoon and other natural disasters on the power grid, successfully control the large-scale power grid, and ensure its safe operation is the goal of the power grid operators' continuous efforts and exploration. [0003] However, the ty...

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Problems solved by technology

[0011] The system and method of the present invention overcome the problems of insufficient utilization of the design wind speed of the transmission line in the prior art and the failure to fully consider the actual situation of the transmission line in the area where the system is used. Calculate and process, and output the typhoon disaster risk analysis results of the transmission lines in the area

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