Double-Layer Coils Design for 11 kW Wireless Power Transfer

Author:

Herceg Dejana1,Rajs Vladimir1ORCID,Despotović Živadin1ORCID,Popadić Bane1,Šiljegović Mirjana2,Kiraly Zoltan34ORCID,Vizvari Zoltan567ORCID,Wizner Krisztian8,Felde Imre4,Odry Peter35ORCID,Tadic Vladimir345ORCID

Affiliation:

1. Faculty of Technical Sciences, Department of Power, Electronic and Telecommunication Engineering, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia

2. Faculty of Sciences, Department of Physics, University of Novi Sad, Trg Dositeja Obradovića 4, 21000 Novi Sad, Serbia

3. Institute of Information Technology, University of Dunaujvaros, Tancsics M. Str. 1/A, H-2401 Dunaujvaros, Hungary

4. John von Neumann Faculty of Informatics, Óbuda University, Becsi Str. 96/B, H-1034 Budapest, Hungary

5. Symbolic Methods in Material Analysis and Tomography Research Group, Faculty of Engineering and Information Technology, University of Pecs, Boszorkany Str. 6, H-7624 Pecs, Hungary

6. Department of Environmental Engineering, Faculty of Engineering and Information Technology, University of Pecs, Boszorkany Str. 2, H-7624 Pecs, Hungary

7. Cellular Bioimpedance Research Group, Szentagothai Research Centre, University of Pecs, Ifjusag Str. 20, H-7624 Pecs, Hungary

8. Institute of Engineering Sciences, University of Dunaujvaros, Tancsics M. Str. 1/A, H-2401 Dunaujvaros, Hungary

Abstract

The design of a wireless power transfer system with double rectangular coils for 11 kW power transfer is considered. System modeling and numerical calculation of the system parameters are described. Coils are made from available Litz wire, which has a smaller than necessary diameter for the required power. Thus, a setup with double layer coils was developed, which resulted in a modified design. Starting from a system consisting of coupled coils, as suggested by the standard for wireless power transfer Level 3 in class Z1, different coil and ferrite shield layouts were tested in numerical simulations, and their parameters were calculated. The prototype was constructed based on the simulated model with the best results and properties. Numerical results were verified by laboratory measurements, and a successful power transfer at 11 kW was achieved.

Funder

University of Dunaujvaros

Óbuda University, co-financed by the Hungarian State

Publisher

MDPI AG

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