Study of the Electromagnetic Interference Generated by Wireless Power Transfer Systems

Baikova, Elena N.; Valtchev, Stanimir; Melício, Rui; Krusteva, A. P.; Pires, V. Fernão

doi:10.15866/iree.v11i5.9773

Cited by 8 publications

(10 citation statements)

References 21 publications

(32 reference statements)

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“…• the maximum value of electric field registered in the above-mentioned area, for the output power of the 800 W, is 225 V/m. However, outside the ferrite regions, the E-field intensity is below the exposure limits defined by ICNIRP [3]. That is, the EMF intensity is limited to 40.5 V/m at 284 kHz of frequency, i.e.…”

Section: Discussing Of the Resultsmentioning

confidence: 96%

“…is 40.5 V/m for 2nd harmonic. The RMS values of E-field for the 1st harmonic in function of the measurement distance and transferred power values of the 120, 300, or 800 W [3] is shown in Figure 13. Figure 13 shows that for the frequency value of the 142 kHz, the slope of the E-field curves is larger between the distances of 4 and 20 cm, while it is less for the distances between the 20 and 100 cm.…”

Section: Prototype Resultsmentioning

confidence: 99%

“…The model with the given setup and specifications was used for an experimental verification of the results of a previous research [3,20,22]. The WET system for EV charging is shown in the Figure 9.…”

Section: Prototypementioning

confidence: 99%

“…The study of the electromagnetic influence on the human health is important not only for its easily measurable short-term consequences. The long-term consequences from the exposure of humans and other biological objects to the radiation is also studied [3].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Electromagnetic field generated by a wireless energy transfer system: comparison of simulation to measurement

Baikova

Romba

Valtchev

et al. 2017

Journal of Electromagnetic Waves and Applications

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This paper presents a wireless energy transfer system operating at the frequency values of kHz order: modeling, simulation, and comparison with prototype measurement results. Wireless energy transfer system model using finite element method was carried out to simulate the electric field and the magnetic flux density for different air gap sizes between the transmitter and the receiver coils. Results are presented and compared with the electromagnetic emission measurements radiated by the wireless energy transfer system prototype. The electric field comparison between the simulated and the prototype measurement values shows an error of roughly 8.7%. In the recent years, the interest in the wireless energy transfer technology, especially for electric vehicles batteries charging, is rapidly increasing. As a result of the increasing application of this technology in the industrial and consumer electronic products, more concerns are raised about the electromagnetic compatibility, since the wireless energy transfer systems produce electromagnetic emissions in the surrounding environment.

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Section: Discussing Of the Resultsmentioning

confidence: 96%

Section: Prototype Resultsmentioning

confidence: 99%

Section: Prototypementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electromagnetic field generated by a wireless energy transfer system: comparison of simulation to measurement

Baikova

Romba

Valtchev

et al. 2017

Journal of Electromagnetic Waves and Applications

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“…The electromagnetic field (EMF), through which the energy is transferred between the emitting coil and the receiving coil, is a high-frequency field and induces electromagnetic interferences (EMI) into the other electronic devices. This EMF has high intensity and so may influence the operation of the communication channel by which the emitter and the receiver exchange the information [4,6]. Moreover, the electromagnetic field emitted by the WET system can induce high voltages and currents in the living organisms [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experiment on Electric Field Emissions Generated by Wireless Energy Transfer

Baikova

Romba

Melício

et al. 2018

IFIP Advances in Information and Communication Technology

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This paper presents a wireless energy transfer (WET) system operating at the frequency of tens of kHz. It treats the modeling and simulation of WET prototype and its comparison with experimental measuring results. The wireless energy transfer system model was created to simulate the electric field between the emitting and the receiving coils, applying the finite element method. The results from the simulation are compared to the measured values of the electric field emission from the wireless energy transfer equipment. In the recent years the interest in the WET technology, especially for the electric vehicles (EV) batteries charging, is rapidly growing. The WET systems pollute the environment by electromagnetic emissions. Due to the expanding use of this technology in industrial and consumer electronics products, the problems associated with the electromagnetic compatibility (EMC), and the adverse impact on the human health becomes highly important.

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Study of Electric Field Emissions in Wireless Energy Transfer

Baikova¹,

Melício²,

Valtchev³

2020

IFIP Advances in Information and Communication Technology

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The thesis focuses on the study of the electrical component of the electromagnetic field, radiated by the wireless energy transfer system into the adjacent environment. The wireless energy transfer and the wireless data transfer are studied simultaneously, focusing on the appropriate wireless communication channel between the transmitter and the receiver, so to make that channel improved. An implementation of a wireless energy transfer experimental prototype that operates simultaneously with a wireless data transmission is assembled. A computational application that allows tuning the operational frequency of the prototype to correspond to the resonant mode operation is developed.

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Study of the Electromagnetic Interference Generated by Wireless Power Transfer Systems

Abstract: Abstract

Cited by 8 publications

References 21 publications

Electromagnetic field generated by a wireless energy transfer system: comparison of simulation to measurement

Electromagnetic field generated by a wireless energy transfer system: comparison of simulation to measurement

Simulation and Experiment on Electric Field Emissions Generated by Wireless Energy Transfer

Study of Electric Field Emissions in Wireless Energy Transfer

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