Finite Element Analysis of Electromagnetic Fields Emitted by Overhead High-Voltage Power Lines

Lunca, Eduard; Neagu, Bogdan-Constantin; Vornicu, Silviu

doi:10.1007/978-3-030-62191-9_29

Cited by 10 publications

(4 citation statements)

References 25 publications

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“…This equations aftermontioned explain the magnetostatic technique of straight conductor traversed by current close loops [34]. Due to this concept, in this prepared study we will apply to previous observe the magnetic field of overhead power transmission lines for various power line layouts, the effect of loading current I circulates in the phase conductors on the magnetic induction values was analyzed.…”

Section: Principle Of Magnetic Field Calculation Methodsmentioning

confidence: 99%

Suitable Performance of the Magnetic Field Induced Near High Voltage Overhead Transmission Lines

2023

International Conference on Innovative Academic Studies

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Magnetic field is produced by electric currents flow conductors of overhead power lines. In order hand, when load current increases, the magnetic field increases excessively. Many researcher works show that the magnetic field can have harmful effects on humans and can interrupt electric and electronic systems. Overhead transmission lines are known as major sources of magnetic field due to their eddy currents run counter. Transmission lines can produce strong magnetic fields around itself. So, many peoples that live near the high voltage overhead power lines are concern about the harmful effects of magnetic fields in the environment and human health. This article presents a numerical calculation of magnetic field around overhead transmission lines under different types of lines pattern such as high voltage (HV) 60kV, also extremely high voltage (EHV) 220kV, then 400kV single circuit three phase overhead transmission lines. The effect of load current at the magnetic field intensity in addition to the difference of circuit lines configurations and the phase conductors arrangement. The variation of height of conductors and the height of observation point in the magnetic field under power lines are discussed.

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Section: Principle Of Magnetic Field Calculation Methodsmentioning

confidence: 99%

Suitable Performance of the Magnetic Field Induced Near High Voltage Overhead Transmission Lines

2023

International Conference on Innovative Academic Studies

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“…Essentially, this diameter is that of a hypothetical single conductor, which would carry the same amount of electric charge per unit length as the bundle, resulting in a comparable electric field. The study referenced in [16] provides evidence that modeling individual and bundled conductors yields equivalent results, assuming perfect symmetry in the physical arrangement. However, this assumption typically holds under the ideal conditions assumed in this work.…”

Section: Quickfiekd Simulation Model Proceduresmentioning

confidence: 99%

“…The mutual relationship and properties of electric fields and magnetic fields can be described using Maxwell's four basic equations [16]. These equations are based on Ampere's law, Faraday's law of induction, Gauss' law, and Gauss' law for magnetism.…”

Section: Electric Field and Magnetic Vector Potential Formulationmentioning

confidence: 99%

Electric and Magnetic Fields Analysis of the Safety Distance for UAV Inspection around Extra-High Voltage Transmission Lines

Boukabou,

Kaabouch

2024

Drones

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The deployment of small unmanned aerial vehicles (UAVs), or drones, for transmission line inspections, has brought attention to the potential impact of electromagnetic fields (EMFs) on UAV operations. This work describes a mathematical model based on the finite elements method (FEM), designed to examine the electric and magnetic fields produced by extra-high voltage (EHV) conductors. The current study extends the analysis to encompass both electric and magnetic fields and evaluates the safe distances for UAVs operating near 345 kV, 500 kV, and 765 kV transmission lines. The electromagnetic environment around these EHV transmission lines was simulated using electrostatic, magnetostatic, and transient magnetic modules within the QuickField software 6.6. Electric and magnetic profiles were estimated using 2D finite element analysis, including a numerical simulation for phase-to-phase fault EMFs for the above transmission lines. These results were then cross-verified with theoretical calculations at specific intervals and further validated using the EMFACDC analytical method developed by the International Telecommunication Union. This comprehensive assessment concludes that precise distance considerations are necessary to ensure UAV safety during power line inspections, mitigating potential risks from EMF interference.

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“…According to the usual evaluation procedures applied in magnetic field exposure studies, we are mainly interested in computing lateral profiles of the RMS magnetic flux density at various heights above the ground, particularly at the standard height of 1 m. Such profiles of B RMS are calculated in a separate Microsoft Excel worksheet, where a sufficiently large number of instantaneous magnetic flux density profiles (generated over a 20-ms period) are imported and then "summed" together with the formula [18,27]:…”

Section: Calculation Of Rms Magnetic Flux Densitymentioning

confidence: 99%

Numerical and Analytical Analysis of the Low-Frequency Magnetic Fields Generated by Three-Phase Underground Power Cables with Solid Bonding

2023

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There is a special concern for measuring and simulating low-frequency magnetic fields generated by underground power cables, particularly in human exposure studies. In the present study, an accurate 2D finite element model for computing magnetic fields generated by three-phase underground power cables with solid bonding is proposed. The model is developed in ANSYS Maxwell 2D low-frequency electromagnetic field simulation software for a typical 12/20 kV (medium-voltage) three-phase underground power cable in both trefoil and flat formations, but it can be adapted to any cable system. Model validation is achieved by analytical computations conducted with a software tool based on the Biot–Savart law and the superposition principle. RMS magnetic flux density profiles calculated at various heights above the ground with these two methods correlate very well. This is also true for induced shield currents. The application of the finite element model to multiple three-phase power cables laid together is also considered.

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Finite Element Analysis of Electromagnetic Fields Emitted by Overhead High-Voltage Power Lines

Cited by 10 publications

References 25 publications

Suitable Performance of the Magnetic Field Induced Near High Voltage Overhead Transmission Lines

Suitable Performance of the Magnetic Field Induced Near High Voltage Overhead Transmission Lines

Electric and Magnetic Fields Analysis of the Safety Distance for UAV Inspection around Extra-High Voltage Transmission Lines

Numerical and Analytical Analysis of the Low-Frequency Magnetic Fields Generated by Three-Phase Underground Power Cables with Solid Bonding

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