An intelligent rolling prediction method of wind speed along a railway based on wind direction

Abstract

The invention discloses an intelligent rolling prediction method of wind speed along a railway based on wind direction. A number of high-precision wind speed forecasting models are established by historical wind speed, and the optimized forecasting results are integrated. The forecasting accuracy and stability of the wind speed forecasting model are improved and the robustness of the wind speed forecasting process is increased by the method of optimal integration and correlation analysis. At the same time, a correction model of wind speed prediction error is establish by using the simulation prediction error and the real wind direction value of the target wind measurement point, so as to greatly improve the wind speed prediction accuracy along the railway line; the wind speed prediction process fuses wind direction data, constructs the mapping relationship between wind speed prediction error and wind direction, and optimizes the wind speed after integrated optimization according to different wind directions, thus avoiding the limitation of single data driving, perfecting the wind speed prediction process along the railway, and significantly improving the wind speed prediction accuracy.

Description

technical field [0001] The invention belongs to the field of railway wind speed prediction, and in particular relates to an intelligent rolling prediction method of wind speed along a railway that integrates wind direction. Background technique [0002] Strong winds seriously threaten the operation safety of railway transportation, and there are many safety accidents caused by sudden strong winds every year. Aiming at the problem of high wind on the railway, most researchers focus on the prediction of wind speed along the railway, aiming to realize high-precision prediction of wind speed along the railway through the analysis of wind speed time series, and rarely involve the error correction problem after the prediction is completed. [0003] In addition to the wind speed, the factors causing train accidents are also closely related to the wind direction of the strong wind. At the same running speed, the running state of the train has a high correlation with the wind directi...

AI Technical Summary

Problems solved by technology

Aiming at the problem of high wind on the railway, most researchers focus on the prediction of wind speed along the railway, aiming to realize high-precision prediction of wind speed along the railway through the analysis of wind speed time series, and rarely involve the error correction after the prediction is completed

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