Radar extrapolation power grid icing short temporary calculation method and system

Abstract

The embodiment of the invention provides a radar extrapolation power grid icing short and temporary calculation method and system. The method comprises the following steps: acquiring radar measurement data measured by a radar monitoring point; performing inversion calculation on the radar measurement data; calculating an initial field using the inversion data fusion; extrapolation calculation is carried out on the radar water vapor; and calculating the icing thickness of the power transmission line. According to the technical scheme, radar reflectivity data and water vapor are ingeniously combined for calculation, local single-point area remote sensing monitoring is achieved, and it is guaranteed that local information including surrounding information of extrapolation calculation is guaranteed. In addition, the scheme is good in universality, can be used for extrapolation prediction calculation of icing of the power transmission line in each region prone to icing, can achieve timely early warning of icing of the power transmission line, and improves the pertinence and effectiveness of anti-icing work.

Description

technical field [0001] The invention belongs to the field of power transmission and distribution, and in particular relates to a radar extrapolation grid ice-covered short-term impending calculation method and system. Background technique [0002] In recent years, power grids have frequently encountered icing disasters in winter, seriously affecting the safety and security of power supply. In order to prepare for anti-icing, grasp the development trend of ice conditions, and enhance the power grid's ability to resist freezing from rain and snow, it is urgent to carry out accurate early warning of icing on transmission lines. [0003] At present, power grid enterprises use micro-meteorological icing monitoring devices to obtain the icing monitoring situation at the current location, and propose a big data method to extrapolate the icing calculation method, but because only the local monitoring situation is considered, the surrounding environmental changes are not considered ...

AI Technical Summary

Problems solved by technology

[0003] At present, power grid enterprises use micro-meteorological icing monitoring devices to obtain the icing monitoring situation at the current location, and propose a big data method to extrapolate the icing calculation method, but because only the local monitoring situation is considered, the surrounding environmental changes are not considered , leading to a large deviation between the extrapolated results of ice coverage and the actual

However, the numerical prediction technology of power grid icing can realize the short-term prediction of icing for 3 days, but for areas with complex terrain, the icing may increase rapidly within a few hours, and the time granularity of short-term prediction is on the scale of the day, which cannot be fine-tuned. into a few hours

At present, the meteorological department mainly uses the short-imminence prediction technology to make up for the prediction of the next few hours, but it is only used for the rainstorm prediction in summer and cannot be directly used for winter ice prediction

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