A Nonmeshing Approach for Modeling Grounding

Clavel, Édith; Roudet, James; Guichon, Jean‐Michel; Gouichiche, Zaki; Joyeux, Patrice; Derbey, Alexis

doi:10.1109/temc.2017.2743227

Cited by 8 publications

(12 citation statements)

References 18 publications

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“…Investigations of the electrical resistivity of soil are important for various industrial applications, for example, estimation of corrosion of underground facilities, analysis of power distribution grounding systems, safe grounding design, see, for example, (Ackerman et al, 2013;Zhou Wang et al, 2015;Zastrow, 1979;Datsios et al, 2017;Clavel et al, 2018;Gomes et al, 2018), and the references therein.…”

Section: Introductionmentioning

confidence: 99%

Modeling of electrical resistivity of soil based on geotechnical properties

Alsharari¹,

Olenko

Abuel-Naga

2020

Expert Systems with Applications

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Determining the relationship between the electrical resistivity of soil and its geotechnical properties is an important engineering problem. This study aims to develop methodology for finding the best model that can be used to predict the electrical resistivity of soil, based on knowing its geotechnical properties. The research develops several linear models, three non-linear models, and three artificial neural network models (ANN). These models are applied to the experimental data set comprises 864 observations and five variables. The results show that there are significant exponential negative relationships between the electrical resistivity of soil and its geotechnical properties. The most accurate prediction values are obtained using the ANN model. The cross-validation analysis confirms the high precision of the selected predictive model. This research is the first rigorous systematic analysis and comparison of difference methodologies in ground electrical resistivity studies. It provides practical guidelines and examples of design, development and testing non-linear relationships in engineering intelligent systems and applications.

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Section: Introductionmentioning

confidence: 99%

Modeling of electrical resistivity of soil based on geotechnical properties

Alsharari¹,

Olenko

Abuel-Naga

2020

Expert Systems with Applications

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“…The aim of this article is to show that the PEEC approach adapted to modelling without earth mesh is the most suitable for simulating a complex system integrating heterogeneous components (cabling, filters, protection devices, loads, transformers,...) facing different kinds of perturbation sources. In [1], the theoretical bases and formulations for establishing an equivalent electrical circuit of buried conductors were developed. All the geometric configurations of buried conductors that were not previously available in the literature have been developed analytically.…”

Section: Introductionmentioning

confidence: 99%

“…In section II, the principles of modelling method are recalled [1]. The developed approach is based on the evaluation of an electrical equivalent circuit of grounding conductors associated to an electrical model of all the equipment of the building.…”

Section: Introductionmentioning

confidence: 99%

“…Abstract-This article aims to prove the effectiveness of the PEEC method adapted to the modelling of meshless earth whose formulations have been explained in our first theoretical article [1]. This publication is the second part of [1]. Its robustness is emphasized on the simulation of a complex system.…”

mentioning

confidence: 99%

“…Today this is achieved using empirical approach or meshing methods which can be heavy and costly in terms of time solving and memory storage. An integral method based on an analytical resolution of the Poisson equation in the case of current injection has made it possible to obtain excellent results in terms of precision with a great simulation speed [1] compared to conventional methods such as finite elements. A sensitivity analysis can be undertaken through the variation of physical parameters of the earth systems in order to better design them.…”

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confidence: 99%

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Benefits of the Ground PEEC Modeling Approach—Example of a Residential Building Struck by Lightning

Clavel

Roudet

Hayashi

et al. 2019

IEEE Trans. Electromagn. Compat.

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1 Abstract-This article aims to prove the effectiveness of the PEEC method adapted to the modelling of meshless earth whose formulations have been explained in our first theoretical article [1]. This publication is the second part of [1]. Its robustness is emphasized on the simulation of a complex system. The chosen example is to calculate the response of a residential building struck by a lightning wave including models for all components of the distribution network. This method would allow a precise and rapid sizing of the earth protections of buildings. Today this is achieved using empirical approach or meshing methods which can be heavy and costly in terms of time solving and memory storage. An integral method based on an analytical resolution of the Poisson equation in the case of current injection has made it possible to obtain excellent results in terms of precision with a great simulation speed [1] compared to conventional methods such as finite elements. A sensitivity analysis can be undertaken through the variation of physical parameters of the earth systems in order to better design them. This method is obviously suitable for taking into account other EMC disturbances such as power electronics.

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Frequency-domain modeling of unshielded multiconductor power cables for periodic excitation with new experimental protocol for wide band parameter identification

et al. 2019

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A complete modeling technique for unshielded power cables is proposed. The focus is on applications where the resonance phenomena take place in electrically long cables and is originated from periodic excitation, such as power converters. The resonance problems caused by switching converters tend to become more common with the advent of wide band gap semiconductors. This paper includes a new experimental protocol specific for unshielded power cable parameter identification in a wide frequency band, from DC up to medium frequencies (tens of MHz), with an impedance analyzer. It also introduces a frequency-domain simulation tool with conversion to the time domain, via the Fourier series. This frequency-domain modeling is straightforward, and its accuracy depends only on the accuracy of the cable parameter identification.

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A Nonmeshing Approach for Modeling Grounding

Cited by 8 publications

References 18 publications

Modeling of electrical resistivity of soil based on geotechnical properties

Modeling of electrical resistivity of soil based on geotechnical properties

Benefits of the Ground PEEC Modeling Approach—Example of a Residential Building Struck by Lightning

Frequency-domain modeling of unshielded multiconductor power cables for periodic excitation with new experimental protocol for wide band parameter identification

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