New Experimental Investigation of Magnetic and Electric Fields in the Vicinity of High-Voltage Power Lines

Ghnimi, Said; Rajhi, Adnen; Gharsallah, Ali

doi:10.4283/jmag.2016.21.1.102

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…According to Maxwell's equations, the 3-axis components of the electric field can be obtained [9]. Moreover, the vector of the electric field is perpendicular to the magnetic field …”

Section: (3)mentioning

confidence: 99%

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High Precision Electromagnetic Momentum Positioning with Current Loop

Zhang¹,

Zhao²,

Wu³

2017

Journal of Magnetics

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A novel high precision spatial positioning method utilizing the electromagnetic momentum, i.e., Electromagnetic Momentum Positioning (EMP), is proposed in this paper. By measuring the momentum of the electromagnetic field around the small current loop, the relative position between the sensor and the current loop is calculated. This method is particularly suitable for the application of close-range and high-precision positioning, e.g., data gloves and medical devices in personal healthcare, etc. The simulation results show that EMP method can give a high accuracy with the positioning error less than 1 mm, which is better than the traditional magnetic positioning devices with the error greater than 1 cm. This method lays the foundation for the application of data gloves to meet the accurate positioning requirement, such as the high precision interaction in Virtual Reality (VR), Augmented Reality (AR) and personal wearable devices network.

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“…According to Maxwell's equations, the 3-axis components of the electric field can be obtained [9]. Moreover, the vector of the electric field is perpendicular to the magnetic field …”

Section: (3)mentioning

confidence: 99%

“…(6) and Eq. (8), which can be denoted as (9) Hence, a novel method of spatial localization based on the momentum density has been established. Through measuring the electric and magnetic field of the small current loop, the spatial coordinates of the sensors to the loop source can be calculated.…”

Section: Calculating the Distance Rmentioning

confidence: 99%

High Precision Electromagnetic Momentum Positioning with Current Loop

Zhang¹,

Zhao²,

Wu³

2017

Journal of Magnetics

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“…People also increasingly pay more and more attention to the study of electric field distribution on railway platforms with people's attention to occupational or public health [11][12][13], such as the spatial distribution of electric field caused by catenary in electrified railway [14], the effects of wireless power transfer (WPT) systems on human health [15,16], and the study of electromagnetic exposure result of transmission lines [17,18].…”

Section: Introductionmentioning

confidence: 99%

Study on Electromagnetic Exposure of High-speed Rail-way Platform Staff Workers Induced by Contact Wires

Yang¹,

Lu²

2023

PIER C

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The bodies of platform staff workers in high-speed railway stations absorb induction electric field when being exposed to the electric field environment of contact wires with 25 kV high-voltages. To analyze the safety of electromagnetic exposure of the station platform staff workers with different numbers of tracks, this paper establishes a model with 6 tracks, 2 platforms, and 4 staff workers on the platform simulating the actual situation. It then analyzes the distribution of induction electric field present in their human body tissues, which in the electric field environment is generated by the high voltages of the contact wires of 1 track, 3 tracks, 6 tracks, respectively. Calculation results show that the maximum induction electric field of staff worker on the platform with different track numbers appears at the scalp, and the electric field intensity levels in the skull and brain are relatively small. For example, on the two platforms with 6 tracks, the maximum induction electric field of the staff worker is found in the scalp, and the values are 58.86 times and 1688.52 times of those of the skull and brain, respectively. For the staff worker at the safety white line, the maximum induction electric field in a human central nervous system is 0.61 mV/m, which is far less than the basic limit of 100 mV/m occupational exposure in the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines. With the increase in the number of tracks, the maximum induction electric field of the staff also increases correspondingly at the same position. Research results can provide data reference for the formulation of electromagnetic protection and standards for high-speed railway platform staff workers.

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Mathematical modelling of mutual electromagnetic influences of related power transmission lines in a transition process mode

Asanova

Suerkulov

Safaraliev

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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A mathematical model is obtained using the variable state method, allowing the simulation of electromagnetic processes in transmission lines and communication lines (both homogeneous and heterogeneous) taking into account the reciprocal inductive and capacitive bonds in transition and established modes. The resulting mathematical model can solve a number of important scientific and practical problems related to the design and operation of electric power systems (EEC). The model also allows for a variety of situations and tasks related, for example, to the calculation of circuit breakage, short circuit (SC) or single-phase SC in isolated neural networks. In particular, it is possible to calculate the steered voltage of the line from high-voltage or high-precision power lines. Based on this methodology, it is also proposed to develop an algorithm for the machine formation of mathematical models for the study of transition processes in complex electrical networks, where the initial data will be their parameters and the structure of graphs of the studied networks.

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New Experimental Investigation of Magnetic and Electric Fields in the Vicinity of High-Voltage Power Lines

Cited by 3 publications

References 29 publications

High Precision Electromagnetic Momentum Positioning with Current Loop

High Precision Electromagnetic Momentum Positioning with Current Loop

Study on Electromagnetic Exposure of High-speed Rail-way Platform Staff Workers Induced by Contact Wires

Mathematical modelling of mutual electromagnetic influences of related power transmission lines in a transition process mode

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