An improved soil ionization representation to numerical simulation of impulsive grounding systems

Gazzana, Daniel S. and Tronchoni, Alex B. and Leborgne, Roberto C. and Bretas, Arturo S. and Thomas, Dave W. P. and Christopoulos, Christos (2018) An improved soil ionization representation to numerical simulation of impulsive grounding systems. IEEE Transactions on Magnetics, 54 (3). p. 7200204. ISSN 0018-9464

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Abstract

This paper presents a hybrid method based on the transmission line modeling method (TLM) aiming to represent the soil ionization effect for grounding systems simulation. This natural phenomenon can be better represented by taking into account the variation of the conductive components present in the TLM circuit and considering the residual resistivity remaining in the soil. The proposed analytical formulation is developed with a focus on the computational implementation of the method. The model is validated by comparing synthetized test results with measured data and other numerical models (residual resistivity, TLM, and analytical model). High precision together with an easy to implement formulation indicates that the methodology presents potential for real-life applications.

Item Type: Article
Additional Information: © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Grounding, lightning, numerical modeling, soil ionization, transmission line modeling method (TLM).
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: 10.1109/TMAG.2017.2750019
Depositing User: Eprints, Support
Date Deposited: 23 Mar 2018 15:07
Last Modified: 24 Mar 2018 12:00
URI: http://eprints.nottingham.ac.uk/id/eprint/50642

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