Propagation of lightning electromagnetic fields in the presence of buildings

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dc.contributor.authorVieira M.S.
dc.contributor.authorJaniszewski J.M.
dc.date.accessioned2024-03-13T00:58:21Z
dc.date.available2024-03-13T00:58:21Z
dc.date.issued2015
dc.description.abstract© 2014 Elsevier B.V. All rights reserved.Coupling of lightning electromagnetic fields to distribution lines causes overvoltages that can provoke interruption of energy supply and damage to equipment of the power network and consumers. The propagation of these electromagnetic fields is strongly affected by nearby buildings and the effect depends on both the electric and the geometric parameters of the buildings and on the electric characteristics of the soil. The influence of the permittivity and conductivity of buildings with different heights on the behavior of lightning electromagnetic fields was studied. First and subsequent strokes and different values of soil parameters were considered. The electromagnetic fields were calculated with the Microwave Studio module of the CST Studio Suite 2013 software. The results have shown that the vertical electric field is reduced by the presence of buildings, practically in the same way for first and subsequent strokes. PEC buildings cause significantly greater reduction than concrete buildings and the effect is greater for higher buildings. The influence of buildings on the horizontal electric field is very much complex. Depending on the specific condition and type of stroke (first or subsequent stroke), reduction or increase and polarity inversion can be observed, along with negative excursion and oscillation. Regarding magnetic fields, only with subsequent strokes and higher PEC buildings a significant effect was observed due to the occurrence of oscillations.
dc.description.firstpage101
dc.description.lastpage109
dc.description.volume118
dc.identifier.doi10.1016/j.epsr.2014.07.025
dc.identifier.issn0378-7796
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36263
dc.relation.ispartofElectric Power Systems Research
dc.rightsAcesso Restrito
dc.subject.otherlanguageBuildings
dc.subject.otherlanguageComputational simulation
dc.subject.otherlanguageElectromagnetic fields propagation
dc.subject.otherlanguageFDTD
dc.subject.otherlanguageLightning
dc.subject.otherlanguageModeling
dc.titlePropagation of lightning electromagnetic fields in the presence of buildings
dc.typeArtigo
local.scopus.citations9
local.scopus.eid2-s2.0-85027922277
local.scopus.subjectComputational simulation
local.scopus.subjectDifferent heights
local.scopus.subjectDistribution lines
local.scopus.subjectElectric characteristics
local.scopus.subjectHorizontal electric fields
local.scopus.subjectLightning electromagnetic field
local.scopus.subjectPolarity inversion
local.scopus.subjectVertical electric fields
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85027922277&origin=inward
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