Measurement of Currents Induced on Overhead Line From Very Close Natural and Triggered Lightning

Luo, Xiaojun; Zhang, Qi; Shi, Lihua

doi:10.1109/temc.2023.3243639

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2024

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“…However, little CBC of natural lightning is documented due to its randomness and instantaneity. The analysis on CBC is mainly performed based on the experiments of the triggered lightning (Cai et al., 2023; Dwyer & Uman, 2014; Fu et al., 2021; Liu et al., 1994; Luo et al., 2023; Pinto et al., 2005; Qie et al., 2009; Rakov et al., 2005; Schoene et al., 2010; J. Yang et al., 2010; Y. Zhang et al., 2014).…”

Section: Introductionmentioning

confidence: 99%

Applying High‐Speed Video Images to Inverse Channel Base Current Based on NARX Neural Network

Zhang,

Luo,

Shi

et al. 2024

Earth and Space Science

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The high‐speed video (HSV) images were taken as the input data of the nonlinear autoregressive network (NARX) to reconstruct the return‐stroke channel base current (CBC). The integrated luminosity (IL) of discharge channel is firstly obtained by summing the pixel values in HSV images, and the correlation between the IL and CBC is analyzed as well. Then, a NARX model is trained by taking the IL and CBC as the input and output data, respectively. With the input of the IL of another discharge channel, the trained NARX model is applied to inverse the corresponding CBC. The inversed result suggests that the proposed method can be used to infer the CBC that was not yet measured.

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