Computation of the electric field in the vicinity of overhead power line towers

Modrić, Tonći; Vujević, Slavko

doi:10.1016/j.epsr.2016.03.004

Cited by 6 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1) or equivalent, that substitute parts of conductive passive surfaces. Examples of conductive passive surfaces are overhead power line towers, fences or any other conductive passive parts in high-voltage substations, which can be modelled using straight thin-wire cylindrical conductor segments or using subparametric spatial 2D finite elements, as in [20]. Hence, a network model of conductive passive surfaces is used herein.…”

Section: Conductive Passive Parts Of the Overhead Power Linesmentioning

confidence: 99%

The influence of conductive passive parts on the magnetic flux density produced by overhead power lines

Vujević

Modrić

2019

FACTA U EE

View full text Add to dashboard Cite

There has been apprehension about the possible adverse health effects resulting from exposure to power frequency magnetic field, especially in the overhead power lines vicinity. Research work on the biological effects of magnetic field has been substantial in recent decades. Various international regulations and safety guidelines, aimed at the protection of human beings, have been issued. Numerous measurements are performed and different numerical algorithms for computation of the magnetic field, based on the Biot-Savart law, are developed. In this paper, a previously developed 3D quasistatic numerical algorithm for computation of the magnetic field (i.e. magnetic flux density) produced by overhead power lines has been improved in such a way that cylindrical segments of passive conductors are also taken into account. These segments of passive conductors form the conductive passive contours, which can be natural or equivalent, and they substitute conductive passive parts of the overhead power lines and towers. Although, their influence on the magnetic flux density distribution and on the total effective values of magnetic flux density is small, it is quantified in a numerical example, based on a theoretical background that was developed and presented in this paper.

show abstract

Section: Conductive Passive Parts Of the Overhead Power Linesmentioning

confidence: 99%

The influence of conductive passive parts on the magnetic flux density produced by overhead power lines

Vujević

Modrić

2019

FACTA U EE

View full text Add to dashboard Cite

show abstract

“…As can be seen from the very recent data literature, concerns about the calculation of electric fields produced by overhead power lines are still topical. There are either variants of using very powerful general software [25], alongside specific methods (such as charge simulation method, CSM) implemented in general mathematical computation software [26] or using simpler, 2D or more elaborate 3D models [27].…”

Section: "In Silico" Measurement Of the Electric Field Produced By Ovmentioning

confidence: 99%

Affordable evaluation of low frequency electric fields from the standpoint of Directive 2013/35/EU

Sălceanu

Lunca

Paulet³

2017

ACTA IMEKO

View full text Add to dashboard Cite

Since the 1st of July 2016, the Directive 2013/35/ EU on the employees’ health protection in terms of non-ionizing electromagnetic radiations acquired the force of law. An accessible methodology for the characterization of a workspace is proposed here, in terms of exposure to low-frequency electric fields.Firstly, the means whereby an external electric field can induce electrical processes in the human body are presented, followed by a comparative summary of differently expressed exposure levels (ICNIRP, European Directive, IEEE-ICES).Further on two electric field sensors are presented that can easily be hand-crafted in any laboratory, useful for extending the capabilities of a budget, low-frequency handheld spectrum analyzer. A realistic exposure metric is developed that cumulates the influence of all E-fields in the environment. A case study is presented on the cumulative assessment of exposure to low frequency electric fields produced in a laboratory-class where a network of 16 computers was working.A simple numerical approach based on FEMM 4.2 has also been developed for evaluating the E-field produced by overhead high voltage transmission lines.This paper is an extended version of the original contribution to the IMEKO TC 4 2016 symposium in Budapest, Hungary.

show abstract

“…Besides these analytical and numerical 2D models [11][12][13], some commercial software packages, which are widely used for computation of overhead power lines electric field, use the same simplified 2D algorithm. However, in a certain number of real cases, advanced 3D algorithms must be applied [14][15][16][17][18].…”

Section: Segmentation Of the Overhead Power Line Conductorsmentioning

confidence: 99%

“…In some papers [18][19][20][21], the authors have adopted the well-known fact that electric field is strongly perturbed by the presence of objects such as overhead power line towers, and therefore, have taken them into account. Thereat, different numerical methods, such as finite element method (FEM), charge simulation method (CSM) and boundary element method (BEM), were used.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3d Computation of the Overhead Power Lines Electric Field

Modrić¹,

Vujević²,

Paladin³

2017

PIER M

View full text Add to dashboard Cite

Abstract-In this paper, a 3D quasistatic numerical algorithm for computation of the electric field produced by overhead power lines is presented. The real catenary form of the overhead power line phase conductors and shield wires is taken into account with an arbitrary number of straight thin-wire cylindrical segments of active and passive conductors. In order to obtain more precise results of the charge density distribution, segmentation is conducted for each overhead power line span separately. Moreover, the presence of the towers which distort the electric field and significantly reduce its magnitude is taken into account. Therefore, the towers of overhead power lines are approximated using thin-wire cylindrical segments of passive conductors with electric potential equal to zero. From self and mutual coefficients of these components, system of linear equations for computation of the charge density distribution was obtained. In the numerical example, electric field intensity distribution in the vicinity of towers and under the midspan of overhead power lines is shown. In order to verify the accuracy of the presented model, the obtained results are compared with similar published examples and results available in the literature.

show abstract

Computation of the electric field in the vicinity of overhead power line towers

Cited by 6 publications

References 22 publications

The influence of conductive passive parts on the magnetic flux density produced by overhead power lines

The influence of conductive passive parts on the magnetic flux density produced by overhead power lines

Affordable evaluation of low frequency electric fields from the standpoint of Directive 2013/35/EU

3d Computation of the Overhead Power Lines Electric Field

Contact Info

Product

Resources

About