Study of magnetic fields produced by transmission line tower using finite element method (FEM)

Ghani, Sulaiman Ab; Khiar, Mohd Shahril Ahmad; Chairul, Imran Sutan; Lada, Musa Yusup; Rahim, Nor Hidayah

doi:10.1109/time-e.2014.7011593

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Magnetic field energy harvesting not only has a disadvantage of having one of the most complex design to be constructed, but it has a low power rating and also lower energy availability when the source of power is distanced further [28], [52]. The theory of magnetic field strength versus the distance between the source or a live conductor was also proven in [53]- [56], where magnetic field will slowly reduce as the distance between the core is increased. A design of permanent-magnet vibration-based electromagnetic energy harvesters was used in [57] where it used the magnetic fields around overhead transmission lines and converted that energy into mechanical vibration via using a small permanent magnet.…”

Section: Magnetic/electromagnetic Field Energy Harvestingmentioning

confidence: 99%

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

Yeesparan

Baharuddin

Din

et al. 2018

IJET

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Condition monitoring sensors have the responsibility of reducing occupational failures or unscheduled shutdowns especially in power transmission line systems. Existing sensors that are used for condition monitoring are mostly battery-dependent. Powering up these sensors in difficult to access areas where high voltage transmission line usually runs is a challenge because batteries usually have a limited life cycle. Power sources other than batteries such as harvesting from solar energy, magnetic energy, radio frequency energy either produces insufficient energy or not entirely available all the time. Electric Field Energy Harvesting (EFEH) overcomes many of these disadvantages and provides a quality and continuous power source to be used to power up devices especially the monitoring sensors that are used in transmission line monitoring. This paper presents key aspects and drawbacks of six types of energy harvesting methods and a review of existing energy harvesters. The concept of electric field and the usage of EFEH in power transmission line system are explained and a comparison between EFEH with typical energy harvesting methods is discussed. This paper finds that EFEH devices have potential to provide sufficient energy for low powered condition monitoring sensors. Moreover, several improved EFEH approaches are proposed, and future trends are discussed.

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Section: Magnetic/electromagnetic Field Energy Harvestingmentioning

confidence: 99%

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

Yeesparan

Baharuddin

Din

et al. 2018

IJET

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“…In addition, the electric field is still present in the absence of current flow. The magnetic field is directly proportional to the current carried by power transmission lines and thus, a magnetic field will be generated in the presence of current flow [5]- [8]. Studies have shown that the maximum body current induced by the electric field from a transmission line is significantly higher than the body current or current density induced by the  ISSN: 2502-4752 Indonesian J Elec Eng & Comp Sci, Vol.…”

Section: Introductionmentioning

confidence: 99%

“…The World Health Organization (WHO) has stipulated the maximum exposure times to minimize health hazards resulting from exposure to electromagnetic radiation [10]. Hence, to minimize the adverse effects of electromagnetic radiation on human health, many studies have been carried out worldwide to analyse the electromagnetic field generated by power transmission lines in order to ensure that the electromagnetic field does not exceed the safety limits set by standards [5], [7]- [9]. Some of these studies are shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Effects of parameter adjustment on the electromagnetic field of an overhead power transmission line model

Ghani

Khiar

Chairul

et al. 2023

IJEECS

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Studies have shown that high-voltage power transmission lines emit electromagnetic radiation, which has adverse effects on human health. This paper presents the effects of parameter adjustment on the electric and magnetic fields of an overhead power transmission line model at human height. A finite element software, COMSOL multiphysics, was used to simulate the electric and magnetic fields. The electric and magnetic fields generated by the 1200-kV and 220-kV overhead power transmission line models were first computed and the models were validated by comparing the simulation results with those of previous studies. Numbers of parameter were adjusted in order to investigate their effects on the electric and magnetic field distributions. Based on the results, the electric field intensity increases with an increase in the voltage of the conductors. The magnetic field density increases with an increase in the current carried by the conductors. A voltage of 700 kV results in an electricity field intensity that exceeds the residential safety limit (50 kV/m) set by the International Commission on Non-Ionizing Radiation Protection. Hence, a proper right-of-way is needed to ensure that residential areas are at a safe distance away from transmission towers.

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“…Finally, appropriate simulations will allow the investigation of fibre interactions, both desirable and undesirable. Concerning the analysis of the electromagnetic properties of the system, ANSYS 2021 R1 [ 25 ] was used, namely its component ANSYS Maxwell, to create a finite element method (FEM) model [ 26 , 27 , 28 ]. This software is suited for studying electromechanic systems in the range of low-frequency electromagnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Simulations of the Behaviour of Steel Ferromagnetic Fibres Commonly Used in Concrete in a Magnetic Field

et al. 2021

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The efficiency of fibre reinforcement in concrete can be drastically increased by orienting the fibres using a magnetic field. This orientation occurs immediately after pouring fresh concrete when the fibres can still move. The technique is most relevant for manufacturing prefabricated elements such as beams or columns. However, the parameters of such a field are not immediately apparent, as they depend on the specific fibre reaction to the magnetic field. In this study, a numerical model was created in ANSYS Maxwell to examine the mechanical torque acting on fibres placed in a magnetic field with varying parameters. The model consists of a single fibre placed between two Helmholtz coils. The simulations were verified with an experimental setup as well as theoretical relationships. Ten different fibre types, both straight and hook-ended, were examined. The developed model can be successfully used to study the behaviour of fibres in a magnetic field. The fibre size plays the most important role together with the magnetic saturation of the fibre material. Multiple fibres show significant interactions.

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Study of magnetic fields produced by transmission line tower using finite element method (FEM)

Cited by 6 publications

References 3 publications

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

A Review of Energy Harvesting Methods for Power Transmission Line Monitoring Sensors

Effects of parameter adjustment on the electromagnetic field of an overhead power transmission line model

Simulations of the Behaviour of Steel Ferromagnetic Fibres Commonly Used in Concrete in a Magnetic Field

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