Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study

Due to the growing number, diversity and spreading of magnetic field sources, an increasing need to determine the field levels of human exposure has arisen. Some of the most encountered sources are the overhead power lines (OPL) and the determination of spatial and temporal variation of the magnetic...

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Main Authors: Ionel Pavel, Camelia Petrescu, Valeriu David, Eduard Lunca
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/10/2292
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author Ionel Pavel
Camelia Petrescu
Valeriu David
Eduard Lunca
author_facet Ionel Pavel
Camelia Petrescu
Valeriu David
Eduard Lunca
author_sort Ionel Pavel
collection DOAJ
description Due to the growing number, diversity and spreading of magnetic field sources, an increasing need to determine the field levels of human exposure has arisen. Some of the most encountered sources are the overhead power lines (OPL) and the determination of spatial and temporal variation of the magnetic fields produced by OPLs is a challenge. In this paper a hybrid method for the estimation of the temporal and spatial distribution of the magnetic flux density B caused by OPLs, based on experimental measurements and on numerical and analytical simulations, is presented. Thus, using a small number of simultaneous spot measurements correlated with a long-term survey, maps of the magnetic flux density distribution on extended areas are established, for several time instances. The proposed method is verified using two sets of different measurements and the results obtained through simulation. The difference between the estimated and simulated values of B is under 5.5%, which is considered acceptable considering that B spans over a large set of values (724 nT ÷ 1375 nT) in the location of the long-term survey procedure. The possibilities and limitations of the proposed method are discussed.
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spelling doaj.art-57199ee8f15e4fb9a9a137f96415b23f2023-11-18T02:18:48ZengMDPI AGMathematics2227-73902023-05-011110229210.3390/math11102292Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case StudyIonel Pavel0Camelia Petrescu1Valeriu David2Eduard Lunca3Faculty of Electrical Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaFaculty of Electrical Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaFaculty of Electrical Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaFaculty of Electrical Engineering, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, RomaniaDue to the growing number, diversity and spreading of magnetic field sources, an increasing need to determine the field levels of human exposure has arisen. Some of the most encountered sources are the overhead power lines (OPL) and the determination of spatial and temporal variation of the magnetic fields produced by OPLs is a challenge. In this paper a hybrid method for the estimation of the temporal and spatial distribution of the magnetic flux density B caused by OPLs, based on experimental measurements and on numerical and analytical simulations, is presented. Thus, using a small number of simultaneous spot measurements correlated with a long-term survey, maps of the magnetic flux density distribution on extended areas are established, for several time instances. The proposed method is verified using two sets of different measurements and the results obtained through simulation. The difference between the estimated and simulated values of B is under 5.5%, which is considered acceptable considering that B spans over a large set of values (724 nT ÷ 1375 nT) in the location of the long-term survey procedure. The possibilities and limitations of the proposed method are discussed.https://www.mdpi.com/2227-7390/11/10/2292magnetic field surveyexperimental determination of magnetic fieldsmodeling and simulation of OPLs
spellingShingle Ionel Pavel
Camelia Petrescu
Valeriu David
Eduard Lunca
Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
Mathematics
magnetic field survey
experimental determination of magnetic fields
modeling and simulation of OPLs
title Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
title_full Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
title_fullStr Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
title_full_unstemmed Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
title_short Estimation of the Spatial and Temporal Distribution of Magnetic Fields around Overhead Power Lines—A Case Study
title_sort estimation of the spatial and temporal distribution of magnetic fields around overhead power lines a case study
topic magnetic field survey
experimental determination of magnetic fields
modeling and simulation of OPLs
url https://www.mdpi.com/2227-7390/11/10/2292
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AT cameliapetrescu estimationofthespatialandtemporaldistributionofmagneticfieldsaroundoverheadpowerlinesacasestudy
AT valeriudavid estimationofthespatialandtemporaldistributionofmagneticfieldsaroundoverheadpowerlinesacasestudy
AT eduardlunca estimationofthespatialandtemporaldistributionofmagneticfieldsaroundoverheadpowerlinesacasestudy