电气-几何模型对位置因子精细化取值的应用研究
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摘要
选取电气-几何模型计算雷击风险评估中位置因子(CD)的方法 ,结合湖北省的雷电流幅值概率分布情况,通过实例对评估对象位置因子的取值以及等效截收面积进行分析计算。然后用AutoCAD作图法对上述方法计算得出的评估对象的等效截收面积进行验证,得出该取值法在适用范围上具有一定的局限性,且不能准确表征出周围建筑对评估对象等效截收面积的影响程度。
The electric-geometric model was used to calculate the position factor(CD) value in the risk assessment of lightning strikes. Combined with the distribution of the lightning current amplitude probabilities in Hubei province, the value of the position factor and the equivalent area of the evaluation object were analyzed and calculated with actual examples. Then the evaluation object calculated by the above method was verified by AutoCAD drawing method, and it was concluded that this method was limited in the scope of application, and it could not accurately represent the impact of the surrounding building to the equivalent intercept area of the evaluation object.
The electric-geometric model was used to calculate the position factor(CD) value in the risk assessment of lightning strikes. Combined with the distribution of the lightning current amplitude probabilities in Hubei province, the value of the position factor and the equivalent area of the evaluation object were analyzed and calculated with actual examples. Then the evaluation object calculated by the above method was verified by AutoCAD drawing method, and it was concluded that this method was limited in the scope of application, and it could not accurately represent the impact of the surrounding building to the equivalent intercept area of the evaluation object.
引文
[1] GB/T 21714.2-2015/IEC 62305-2:2010雷电防护,第2部分:风险管理[S].
[2]高磊,凌晨.关于建筑物等效截收面积计算的若干问题探讨[J].气象科技,2014,42(6):1126-1130.
[3]田芳,刘杰,肖稳安,等.形状复杂的建筑物雷击截收面积的模型和计算方法[J].气象科技,2014,42(6):1118-1125.
[4]石湘波,王焕邦,郑玲,等.化工储罐雷击截收面积算法的探讨[J].内蒙古气象,2016(3):39-42.
[5]李京校,宋平健,李如箭,等.特殊建筑物雷击截收面积计算[J].气象科技,2015,43(2):331-337.
[6]杨仲江,余蜀豫,程斌.暂态电流和电位抬升对雷电风险参数PC的影响[J].科技导报,2011,29(26):57-60.
[7]朱传林,王学良,黄克俭,等.浅析雷电灾害风险评估标准中存在的问题[J].电瓷避雷器,2013(1):45-49.
[8]植耀玲,冯民学,樊荣.雷击风险评估中LO损失因子在多线路系统下的细化和改进[J].气象科学,2012,32(3):298-303.
[9]范旻琪,李政.基于闪电定位数据的雷击风险评估精细化研究[J].湖北农业科学,2018,57(13):90-93.
[10]马金福,汝洪博,冯志伟.雷击风险评估中的位置因子Cd的探讨[J].南京信息工程大学学报(自然科学版),2012,4(5):415-419.
[11]许强.基于先导发展模式对雷电风险评估参数Cd取值修正[J].电瓷避雷器,2017(2):112-115.
[12]甘庆辉,许薇,汤强.电气-几何模型在雷击风险评估中计算Cd值的应用[J].气象与环境学报,2010,26(1):69-71.
[13]李鑫,叶博,乐辉,等.基于CAD作图法的位置因子精细化雷击风险评估的研究[J].湖北农业科学,2018,57(3):91-93.
[14] GB 50057-2010,建筑物防雷设计规范[S].
[15]李瑞芳,吴广宇,曹晓斌,等.雷电流幅值概率计算公式[J].电工技术学报,2011,26(4):161-167.
[16]王学良,张科杰,余田野,等.雷电流幅值概率分布特征及累积概率分段修订[J].气象科技,2016,44(6):1039-1042.
[2]高磊,凌晨.关于建筑物等效截收面积计算的若干问题探讨[J].气象科技,2014,42(6):1126-1130.
[3]田芳,刘杰,肖稳安,等.形状复杂的建筑物雷击截收面积的模型和计算方法[J].气象科技,2014,42(6):1118-1125.
[4]石湘波,王焕邦,郑玲,等.化工储罐雷击截收面积算法的探讨[J].内蒙古气象,2016(3):39-42.
[5]李京校,宋平健,李如箭,等.特殊建筑物雷击截收面积计算[J].气象科技,2015,43(2):331-337.
[6]杨仲江,余蜀豫,程斌.暂态电流和电位抬升对雷电风险参数PC的影响[J].科技导报,2011,29(26):57-60.
[7]朱传林,王学良,黄克俭,等.浅析雷电灾害风险评估标准中存在的问题[J].电瓷避雷器,2013(1):45-49.
[8]植耀玲,冯民学,樊荣.雷击风险评估中LO损失因子在多线路系统下的细化和改进[J].气象科学,2012,32(3):298-303.
[9]范旻琪,李政.基于闪电定位数据的雷击风险评估精细化研究[J].湖北农业科学,2018,57(13):90-93.
[10]马金福,汝洪博,冯志伟.雷击风险评估中的位置因子Cd的探讨[J].南京信息工程大学学报(自然科学版),2012,4(5):415-419.
[11]许强.基于先导发展模式对雷电风险评估参数Cd取值修正[J].电瓷避雷器,2017(2):112-115.
[12]甘庆辉,许薇,汤强.电气-几何模型在雷击风险评估中计算Cd值的应用[J].气象与环境学报,2010,26(1):69-71.
[13]李鑫,叶博,乐辉,等.基于CAD作图法的位置因子精细化雷击风险评估的研究[J].湖北农业科学,2018,57(3):91-93.
[14] GB 50057-2010,建筑物防雷设计规范[S].
[15]李瑞芳,吴广宇,曹晓斌,等.雷电流幅值概率计算公式[J].电工技术学报,2011,26(4):161-167.
[16]王学良,张科杰,余田野,等.雷电流幅值概率分布特征及累积概率分段修订[J].气象科技,2016,44(6):1039-1042.