Computation of Electric and Magnetic Fields Generated by Cloud-to-Cloud Lightning Channels

Carlo Petrarca (), Marco Balato, Luigi Verolino, Amedeo Andreotti and Dario Assante
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Carlo Petrarca: Department of Electrical and Information Technologies, University of Naples “Federico II”, 80125 Napoli, Italy
Marco Balato: Department of Electrical and Information Technologies, University of Naples “Federico II”, 80125 Napoli, Italy
Luigi Verolino: Department of Electrical and Information Technologies, University of Naples “Federico II”, 80125 Napoli, Italy
Amedeo Andreotti: Department of Electrical and Information Technologies, University of Naples “Federico II”, 80125 Napoli, Italy
Dario Assante: Faculty of Engineering, International Telematic University Uninettuno, 00186 Rome, Italy

Energies, 2023, vol. 16, issue 11, 1-16

Abstract: The paper presents analytical formulas for computation in the time domain of electromagnetic (EM) fields generated by tortuous cloud-to-cloud ( CC ) lightning channels over a perfectly conducting ground. For the first time, the study was not limited to a horizontal lightning path but was extended to take into account the natural, tortuous geometry of the lightning channel. After the calculation of the step response, a convolution integration was applied for the computation of the fields generated by an arbitrary current source. The produced electric and magnetic fields were then compared with the fields generated by a horizontal channel. The method can be of primary importance to evaluating the hazards for electric and electronic systems of flying aircraft, estimating the voltages induced on overhead transmission lines by CC lightning, and, in general, evaluating the induced effects on sensitive electric and electronic components. Moreover, it may represent a simple, robust, and time-saving tool for estimating important physical parameters that characterize lightning phenomena.

Keywords: cloud-to-cloud ( CC ) lightning; electromagnetic (EM) fields; lightning-induced overvoltage (LIOV); time-domain equation (TDE) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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