Keywords
wireless battery charging
air transformer
series resonance бездротова передача енергії
бездротова зарядка акумуляторної батареї
повітряний трансформатор
послідовний резонанс
How to Cite
Abstract
A prototype of a wireless charger of inductive type with serial resonance in the circuits of the transmitting and receiving coils has been developed and manufactured, and experimental studies of the efficiency of power transmission from an external source to a storage battery have been carried out. It is shown that the efficiency of the created sample takes values in the range 39% - 78 % and depends on the operating frequency and the distance between the coils. It is also shown that when using coils with an outer diameter of 500 mm, the positioning of these coils in the process of charging the battery at a distance of up to 10 cm does not lead to a significant decrease in efficiency. The experimental values of the efficiency are compared with the calculated ones obtained on a simplified model that takes into account only resistive losses in the coils, and it is shown that the experimental values of the efficiency are 15-20 % less than the calculated ones. References. 8, figures. 5, table 1.
References
Ahmad A., Saad Alam M.S., Chalan R.C. A Comprehensive Review of Wireless Charging Technologies for Electrical Vehicles. IEEE Transaction On Transportation Electrification. 2018. Vol. 4. Issue 1. Pp. 38-63. DOI: https://doi.org/10.1109/TTE.2017.2771619
Choi S.Y., Jeong S.Y., Gu B.W., Lim G.C., Rim C.T. Ultraslim S-Type Power Supply Rails for Roadway – Powered Electric Vehicles. IEEE Transaction on Power Electronics. 2015. Vol. 30. No 11. Pp. 6456-6468. DOI: https://doi.org/10.1109/TPEL.2015.2444894
Besprovodnaia zariadka avtomobilei. URL: https://ecocars.wixsite.com/sale/ (accessed date 25.09.2020) (Rus)
Trivino-Cabrera A., Gonzalez-Gonzalez J., Aguado J. Wireless Power Transfer for Electric Vehicles: Foun-dations and Design Approach. Springer, 2020. 175 p. https://doi.org/10.1007/978-3-030-26706-3
Song M., Belov P., Kapitanova P. Wireless Power transfer inspired by the modern trends in electromagnet-ics. Applied Physics Reviews. 2017. No 4. Pp. 0211102 (1-19). DOI: https://doi.org/10.1063/1.4981396
Besprovodnaia zariadka dlia elektokara: nastoiashchee i bydyshchee, plusy i minusy. URL: https://itc.ua/articles/besprovodnaya-zaryadka-dlya-elektrokara-nastoyashhee-i-budushhee-plyusyi-i-minusyi/ (accessed date 25.09.2020) (Rus)
Induktivnaia zariadka – Inductive charging. URL: https://wikichi.ru/wiki/Inductive_charging#Electric_vehicles (accessed date 25.05.2020) (Rus)
Podoltsev O.D., Pavlov V.B., Zapadynchuk O.P. Analysis of the efficiency of electric power transmission in the system of wireless charging of the electric vehicle’s battery. Tekhnichna elektrodynamika. 2021. No 4. Pp. 63-70. (Ukr)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2021 Tekhnichna Elektrodynamika