CALCULATION OF THE ELECTRIC FIELD ASSOCIATED WITH AN INDUCTIVE COUPLE FOR WIRELESS POWER TRANSFER
DOI:
https://doi.org/10.36801/Keywords:
Inductive coupler, Wireless power transfer, Electric fieldAbstract
The materialization of the contactless transmission is achieved in theory and practice through different contactless coupling circuits, generically called "contactless couplers". In this paper, we analyze by the finite element method, in 2D approximation, the electric field produced by an inductive coupler in various simplified construction variants and calculate specifically related quantities of practical importance such as electric field distribution in the field of calculation, the electric field strength in the vicinity of the inductive coupler, equipotential lines, reactive power, equivalent capacities, etc.
References
(1) G. A. Covic, J. T. Boys, “Inductive Power Transfer”, Proceedings of the IEEE Vol. 101, No. 6, pp.1276-1289, June 2013.
(2) A. Marinescu, I. Dumbrava, A. Vintila, D. G. Marinescu, V. Nicolae, D. Neagu, A. Radu, “The Way to Engineering EV Wireless Charging: DACIA Electron”, Electric Vehicles International Conference & Show (EV 2017), 5- 6 October, Bucharest.
(3) A. Marinescu, I. Dumbravă, “Coupling Factor of Planar Power Coils Used in Contactless Power Transfer”, Proceeding of the 9th International Symposium Advanced Topics in Electrical Engineering – ATEE’15, Bucharest,7 - 9 May 2015.
(4) IEC 61980-1 Ed. 2.0, “Vehicle Wireless Power Transfer (WPT) Systems - Part 1: General requirements”, 2019.
(5) ICNIRP, “ICNIRP Statement-Guidelines for limiting exposure to time-varying electric and magnetic fields (1 Hz to 100 kHz)”, Health Phys., vol. 99, pp. 818–836, 2010.
(6) ETSI TR 103 409 V1.1.1 (2016-10), “WPT systems for EV operating in the frequency band 79 - 90 kHz”.
(7) ICNIRP, “Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz) ”, Health Phys., vol. 74, pp. 494–522, 1998.
(8) J. Nadakuduti, M. Douglas, L. Lu, A, Christ, P. Guckian, N. Kuster, “Compliance Testing Methodology for Wireless Power Transfer Systems”, IEEE Trans. Power Electronics., Vol. XX, No. XX, January 2015.
(9) M. Cheikh, G. Vigneau, A.Takacs, “Compliance Assessment of Human Body Exposure to Wireless Power Systems”, Proceedings of the 2nd World Congress on Electrical Engineering and Computer Systems and Science (EECSS'16) Budapest, Hungary, August 16 - 17, 2016.
(10) J. Oh, T. Kim, J. Yoo, J. Pack, Y. Yoon, M. Choi, and S. Lee, “Human exposure assessment for wireless power transmission system”, Proc. 27th Progr. Electromagn. Res. Symp., Xi’an, China, March 2010, pp. 316–319.
(11) M. Mark, T. Bjorninen, L. Ukkonen, L. Sydanheimo, and J. Rabaey, “SAR reduction and link optimization for mm-size remotely powered wireless implants using segmented loop antennas”, Proc. IEEE Topical Conf. Biomed. Wireless Technol. Netw. Sens. Syst., 2011, pp. 7-10.
(12) E. N. Baikova, S. S. Valtchev, R. Melicio, A. Krusteva, V. Fernão Pires, “Study of the Electromagnetic Interference Generated by Wireless Power Transfer Systems”, International Review of Electrical Engineering (I.R.E.E.), Vol. 11, N. 5, September - October 2016
(13) H.Jiang, P.Brazis Jr., M.Tabaddor J. Bablo, “Safety Considerations of Wireless Charger For Electric Vehicles – A Review Paper”, pp.1-11, 2012 IEEE Symposium on Product Compliance Engineering.
(14) M. Kim, S. Kim, S. Ahn, Y. Chun, S. Park, “Low frequency electromagnetic compatibility of wirelessly
powered electric vehicles”, The International Symposium on Electromagnetic Compatibility, 2014, pp. 426–429, Tokyo, Japan.
(15) A. Marinescu, I. Dumbrava, G. Rosu, O. Baltag, “New Magnetic Field Qualification & Standards for EV Wireless Power Transfer”, The 11th International Workshop of Electromagnetic Compatibility (CEM) 2018, Targoviste, septembrie 2018.
(16) T. Tudorache, A. Marinescu, “Analiza numerică 3D a unui cuplor inductiv echipat cu concentratoare de flux magnetic din ferită”, SME’17, noiembrie 2017.
(17) IEC TR 62905 ED1, “Technical report on exposure assessment methods for wireless power transfer systems”, 2017.
(18) ***Cedrat: “User guide Flux® 11”, 2015.
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