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高压电器  2015 

地闪密度及雷电流幅值概率特征讨论

DOI: 10.13296/j.1001-1609.hva.2015.10.033, PP. 199-204

Keywords: 闪电,地闪密度,雷电流幅值,累计概率公式

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Abstract:

文中根据辽宁省2007―2011年闪电定位资料,1962―2011年地面观测资料,采用相关分析法求出地闪密度与人工观测雷暴日之间的最优距离,在此距离上,结合时间权重法来进行地闪密度方法计算,并绘制出辽宁省地闪密度分布图。对雷电流幅值概率进行数理统计分析,结果表明,套用现有经验公式偏差较大,利用EXCEL工具进行数据拟合,得出辽宁省雷电流幅值累计概率的经验公式。上述研究结果为雷击风险评估工作提供基础,为防雷减灾工作提供依据。

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