Experimental Comparison of Designed Inductance Coils for Wireless Power Transfer

Viktor Shevchenko; Maksym Khomenko; Igor Kondratenko; Oleksandr Husev; Bohdan Pakhaliuk

doi:10.2478/ecce-2020-0015

Experimental Comparison of Designed Inductance Coils for Wireless Power Transfer

Authors

Viktor Shevchenko Ph. D. Student, Chernihiv National University of Technology https://orcid.org/0000-0001-6201-8693
Maksym Khomenko Senior Researcher, Chernihiv National University of Technology https://orcid.org/0000-0001-9084-3527
Igor Kondratenko Principal Researcher, Institute of Electrodynamics of National Academy of Sciences of Ukraine https://orcid.org/0000-0003-1914-1383
Oleksandr Husev Leading Researcher, Chernihiv National University of Technology https://orcid.org/0000-0001-7810-457X
Bohdan Pakhaliuk Ph. D. Student, Chernihiv National University of Technology https://orcid.org/0000-0002-2303-5084

DOI:

https://doi.org/10.2478/ecce-2020-0015

Keywords:

AC-DC power converters electromagnetic coupling, Finite element modelling, Inductive power transmission, Wireless power transfer

Abstract

The paper is devoted to the comparison of different types and different values of coils for inductive power transfer in the classical circuit. This topic is relevant with the growing demand and interest in wireless chargers and the diversity of inductance coils for wireless power transfer. The main geometric parameters affecting the coil efficiency are determined. For experimental verification the classical scheme for wireless power transfer is used based on a full-bridge inverter. Different coils at different distance between them, lateral misalignment and load resistance changed are tested. It is determined that single-layer coils have better transmit-receive efficiency than double-layer ones, especially with series-series compensation topology. The application of two-layer coils is recommended in case of high input current. The investigated samples have efficiency at the level of industrial standards. The design approach can be used for any level of power and application, including wireless charging of electric vehicle batteries.

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Experimental Comparison of Designed Inductance Coils for Wireless Power Transfer

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