To improve the accuracy of early warning for transmission lines in strong convective environments,a wind swing discharge warning method for transmission lines was studied.Based on historical monitoring data from meteorological radar,a double-layer series SVM classifier was constructed to generate a strong convective wind force prediction model.Furthermore,a geometric model of wind swing for transmission lines was constructed,and the impact of non horizontal wind on transmission lines was analyzed.The calculation formulas for wind deviation angle and wind speed under critical conditions were derived.Finally,the generalized extreme value distribution function was used to calculate the probability of wind induced discharge on transmission lines,and a early warning level for wind induced discharge was issued.The results indicated that the wind swing discharge warn-ing method for transmission lines based on meteorological radar data and strong convective wind prediction is effective and relia-ble.This study provides decision-making references for transmission line maintenance,power grid operation,and disaster pre-vention management under strong convective weather.
关键词
风偏放电预警/强对流风力预测模型/气象雷达数据/输电线路/双层串联SVM分类器
Key words
early warning of wind swing discharge/strong convective wind forecast model/meteorological radar data/trans-mission line/double-layer series SVM classifier
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