Simulation of human exposure to electromagnetic fields of inductive wireless power transfer systems in the frequency range from 1 Hz to 30 MHz

Yavolovskaya, E.; Chiqovani, G.; Gabriadze, G.; Iosava, S.; Svanidze, Lily; Willmann, Benjamin; Jobava, R.

doi:10.1109/emceurope.2016.7739265

Cited by 12 publications

(2 citation statements)

References 10 publications

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“…Many works have recently addressed the evaluation of the stray field comparing to reference levels and evaluated in various configurations the induced field quantities in human tissues due to inductive power systems [66][67][68][69][70][71].…”

Section: Shieldingmentioning

confidence: 99%

Electromagnetic analysis and simulation aspects of wireless power transfer in the domain of inductive power transmission technology

Pichon

2020

Journal of Electromagnetic Waves and Applications

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Wireless power transfer (WPT) technologies have now reached a commercial stage in applications going from consumer electronics, biomedical implants and domestic applications. For electrical cars, WPT offers some new opportunities compared to classical wired charging. Although there exist some commercial cars equipped with wireless charging system, improving design procedures needs to address various domains including power electronics, components and electromagnetics. The magnetic coupling system is a key component of wireless power transfer: the coils and surrounding materials have a great impact on the efficiency of the transfer as well as the level of the stray field near the system. The paper aims to present three essential features regarding the inductive power transfer dedicated to electric vehicles. The first one addresses the topology and efficiency of the coupling system, the second one underlines the human exposure considerations and the third one deals with the impact of uncertainties regarding system parameters.

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Section: Shieldingmentioning

confidence: 99%

Electromagnetic analysis and simulation aspects of wireless power transfer in the domain of inductive power transmission technology

Pichon

2020

Journal of Electromagnetic Waves and Applications

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“…For the computation of human exposure to high power systems, many computational methods have been recently developed which aim at reducing computation time. For automotive applications, Yavolovskaya et al developed an adapted method of moments using volume integral equations to bypass the use of heavy computational methods such as FDTD or FEM [5]. Using two-step scaledfrequency FDTD methods for an inductive power transfer system, Zang et al managed to reduce their computation time by two thirds [6].…”

Section: Introductionmentioning

confidence: 99%

Fast and Reliable Human Exposure Assessment Around High Power Systems Using Surrogate Modeling

Lagouanelle,

Freschi,

Pichon

et al. 2024

IEEE Access

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Due to the high level of magnetic stray field around high power electromagnetic systems, the human exposure needs to be properly assessed in order to check the compliance with international standards and guidelines. Such analyses are usually made in two steps: first a proper map of the magnetic field in the vicinity area is computed, where, in a second time a human model is used to compute induced dosimetric quantities. Unfortunately, such high power systems have a high computational cost in addition to the complexity of 3D human models. Thus, this paper shows the useful combination of stochastic tools with numerical solvers in order to build accurate predictors at a low computation cost in the case of human exposure for various high power systems. These surrogate models can be used to accurately analyze the sensitivity of the exposure problem regarding various input parameters at a low computation cost. A dosimetric methodology for assessing the safety of a human body around an inductive power transfer system for automotive applications, using an adaptive metamodelling algorithm coupled with a voxelized 3D human model, has been developed. Such analysis has been successfully extended to a system where human exposure assessment are crucially needed: medium-frequency direct-current welding guns, treating the case of human exposure to a pulsed magnetic field. This methodology manages to reduce the computation time by more than 99.9% compared to a classical analysis for both exposure problems.INDEX TERMS Human exposure, stochastic methods, numerical dosimetry, metamodel, wireless power transfer, spot welding.

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Human exposure analysis for several different human voxel models

Yavolovskaya¹,

Gabriadze²,

Chiqovani³

et al. 2017

2017 XXIInd International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)

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Simulation of human exposure to electromagnetic fields of inductive wireless power transfer systems in the frequency range from 1 Hz to 30 MHz

Cited by 12 publications

References 10 publications

Electromagnetic analysis and simulation aspects of wireless power transfer in the domain of inductive power transmission technology

Electromagnetic analysis and simulation aspects of wireless power transfer in the domain of inductive power transmission technology

Fast and Reliable Human Exposure Assessment Around High Power Systems Using Surrogate Modeling

Human exposure analysis for several different human voxel models

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