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Analytical Expressions for Lightning Electromagnetic Fields With Arbitrary Channel-Base Current. Part II: Validation and Computational Performance
IEEE Transactions on Electromagnetic Compatibility ( IF 2.1 ) Pub Date : 2020-09-04 , DOI: 10.1109/temc.2020.3018108
Daniele Mestriner 1 , Massimo Brignone 1 , Renato Procopio 1 , Mansueto Rossi 1 , Federico Delfino 1 , Farhad Rachidi 2 , Marcos Rubinstein 3
Affiliation  

This article provides the implementation procedure, the validation, and some considerations on the computational efforts of the analytical expressions developed for the lightning electromagnetic fields presented in the companion paper. The validation is presented with different configurations in terms of channel-base current, ground conductivity, and distance to the lightning channel, comparing the obtained results with the numerical integration of the classical formulas. The comparative analysis shows a perfect agreement between the proposed analytical approach and reference numerical simulations. Moreover, the computational effort of the proposed method is discussed, focusing the attention on the choice of the points in which the channel has to be divided in order to maximize the CPU time savings without losing accuracy.

中文翻译:

具有任意通道基电流的雷电电磁场的解析表达式。第二部分:验证和计算性能

本文提供了实现过程,验证以及对随书中介绍的针对雷电电磁场开发的解析表达式的计算工作的一些考虑。通过将获得的结果与经典公式的数值积分进行比较,以通道基电流,接地电导率和到雷电通道的距离等不同配置来进行验证。比较分析表明,所提出的分析方法与参考数值模拟之间存在完美的一致性。此外,还讨论了所提出方法的计算工作量,将注意力集中在必须分割通道的点的选择上,以最大程度地节省CPU时间而不损失精度。
更新日期:2020-09-04
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