Transient electromagnetic interferences between a power line and a pipeline due to a lightning discharge: An EMTP-based approach

Martins-Britto, Amauri G.; Moraes, Caio M.; Lopes, Felipe V.

doi:10.1016/j.epsr.2021.107321

Cited by 13 publications

(6 citation statements)

References 8 publications

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“…The prototype grounding grid composed of graphite composite grounding electrode is the 500kV transmission tower grounding grid [13], and the grounding grid model is FK20/50 (box extension type, grounding grid side length is 20m, extension grounding electrode of 4 corners is 50m). According to the completely similar model, the grounding grid prototype is reduced to small grounding grid model in different proportions.…”

Section: Simulation Verification Of Completely Similar Model Based On...mentioning

confidence: 99%

RETRACTED ARTICLE: Structure optimization and preparation of power system grounding grid based on similarity data analysis algorithm

Huang

Jeon

et al. 2022

Int J Adv Manuf Technol

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The grounding grid of power equipment is the most basic overvoltage protection device for the power system. Before the design and construction of the power grounding grid, the power system generally uses a scaled-down model to verify the characteristics of the grounding grid. As the types and structures of grounding materials become more and more complex, there are one or more similar items in the grounding simulation test that cannot be scaled down. This paper takes the similarity test of a new type of grounding material-flexible graphite composite grounding material as an example. Firstly, the complete similarity theory of grounding simulation test is deduced. Secondly, the source of similar distortion items is analyzed. Then, the distortion error of different similar items is analyzed. Finally, the distortion similarity test of the flexible graphite composite grounding material is taken as an example to verify the test error influence of the distortion similarity item of the grounding simulation. The research results of this paper can provide reference for grounding simulation test, and at the same time, it can be applied to similar tests in other fields.

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Section: Simulation Verification Of Completely Similar Model Based On...mentioning

confidence: 99%

RETRACTED ARTICLE: Structure optimization and preparation of power system grounding grid based on similarity data analysis algorithm

Huang

Jeon

et al. 2022

Int J Adv Manuf Technol

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show abstract

“…In this section, the developed methodology was employed to study the transient response of a typical corridor including an overhead power line and a metallic pipeline, buried in the soil. While real corridors can feature complex routings [27,28], the pipeline was assumed to run parallel to the power line for the sake of simplicity. A cross-section of the considered pipeline-power line corridor is reported in Figure 1.…”

Section: Simulation Resultsmentioning

confidence: 99%

Laplace Transform for Finite Element Analysis of Electromagnetic Interferences in Underground Metallic Structures

et al. 2022

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A numerical methodology is proposed for the calculation of transient electromagnetic interference induced by overhead high-voltage power lines in metallic structures buried in soil—pipelines for oil or gas transportation. A series of 2D finite element simulations was employed to sample the harmonic response of a given geometry section. The numerical inverse Laplace transform of the results allowed obtaining the time domain evolution of the induced voltages and currents in the buried conductors, for any given condition of the power line.

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“…Several papers model ground by its frequency-constant electrical parameters for homogeneous and stratified media and propose different formulations for the ground-return impedance [31][32][33][34]. In this paper, we consider Carson's approach [31] and Nakagawa's formulation [32] to calculate ground-return impedance.…”

Section: Ground-return Impedancementioning

confidence: 99%

“…Lightning is one of the primary sources of outages in electrical power systems due to the back flashover mechanism and other insulation failures that can occur in several pieces of equipment [34]. In this context, lately, several authors had worked on the lightning performance of overhead multiphase transmission lines [22,44,45], wind turbines [43,46] and renewable-based hybrid systems [47,48].…”

Section: Lightning Modelingmentioning

confidence: 99%

Transient Analysis of Multiphase Transmission Lines Located above Frequency-Dependent Soils

et al. 2021

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This paper evaluates the influence of frequency-dependent soil conductivity and permittivity in the transient responses of single- and double-circuit transmission lines including the ground wires subjected to lightning strikes. We use Nakagawa’s approach to compute the ground-return impedance and admittance matrices where the frequency-dependent soil is modeled using Alípio and Visacro’s model. We compare some elements of these matrices with those calculated by Carson’s approach which assumes the frequency constant. Results show that a significant difference can be obtained in high resistive soils for these elements in impedance and admittance matrices. Then, we compute the transient responses for single- and double-circuit lines with ground wires located above soils of 500, 1000, 5000, and 10,000 Ω·m considering the frequency constant and frequency-dependent parameters generated for two lightning strikes (subsequent stroke and Gaussian pulse). We demonstrate that the inclusion of frequency dependence of soil results in an expressive reduction of approximately 26.15% and 42.75% in the generated voltage peaks in single- and double-circuit lines located above a high-resistive soil. These results show the impact of the frequency-dependent soils that must be considered for a precise transient analysis in power systems.

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Transient electromagnetic interferences between a power line and a pipeline due to a lightning discharge: An EMTP-based approach

Cited by 13 publications

References 8 publications

RETRACTED ARTICLE: Structure optimization and preparation of power system grounding grid based on similarity data analysis algorithm

RETRACTED ARTICLE: Structure optimization and preparation of power system grounding grid based on similarity data analysis algorithm

Laplace Transform for Finite Element Analysis of Electromagnetic Interferences in Underground Metallic Structures

Transient Analysis of Multiphase Transmission Lines Located above Frequency-Dependent Soils

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