132259 20260217205506.0 doi 10.1109/TIA.2023.3344686 sideral 137341 ART-2024-137341 eng Acero, Jesús Universidad de Zaragoza (orcid)0000-0001-7207-5536 Comparative evaluation of different cables for magnetic couplers in inductive power transfer systems 2024 Access copy available to the general public Unrestricted Copper litz wires are widely used in wireless charging stations of light-duty electric vehicles. This type of cable is specifically mentioned in the SAE J2954 standard. However, details as the number and diameter of strands, or the material of conductors are not mentioned in the standard, which makes room to address some research and innovations. In this work, several alternatives to the traditional copper-litz wires are analyzed. Specifically, aluminum litz wire, copper-clad aluminum litz wire, and copper tubes are considered as alternatives to standard litz wire for the mentioned application. Potential benefits of the considered alternatives could include weight and cost savings. However, these advantages could not be enough to justify a wiring change if the resistance of the power pads increases and, equivalently, the efficiency of the electromagnetic power transfer decreases. For this reason, a model of the parasitic resistance of windings is proposed by combining the analytical ac resistance of two-layered round strands and finite element simulations. This model is used to obtain a figure of merit related with the efficiency of the electromagnetic energy transfer which is used to compare the different cables. Apart from efficiency, thermal behavior, cost and weight are also considered for comparison purposes. As a result, some conclusions about the suitability of each cable with respect to the operating frequency range are extracted. info:eu-repo/grantAgreement/EUR/AEI/CPP2021-008938 info:eu-repo/grantAgreement/EUR/AEI/TED2021-129274B-I00 info:eu-repo/grantAgreement/ES/ISCIII/PI21-00440 info:eu-repo/grantAgreement/ES/MICINN-AEI/PDC2021-120898-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2019-103939RB-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2022-136621OB-I00 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 4.5 2024 ENGINEERING, MULTIDISCIPLINARY 27 / 179 = 0.151 2024 Q1 T1 ENGINEERING, ELECTRICAL & ELECTRONIC 99 / 368 = 0.269 2024 Q2 T1 1.626 2024 Control and Systems Engineering 2024 Q1 Industrial and Manufacturing Engineering 2024 Q1 Electrical and Electronic Engineering 2024 Q1 10.1 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lope, Ignacio Universidad de Zaragoza (orcid)0000-0003-4858-9734 Carretero, Claudio Universidad de Zaragoza (orcid)0000-0001-7901-9174 Sarnago, Héctor Universidad de Zaragoza (orcid)0000-0001-8399-4650 Burdío, José Miguel Universidad de Zaragoza (orcid)0000-0002-9655-5531 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 2002 247 Universidad de Zaragoza Dpto. Física Aplicada Área Electromagnetismo 60, 2 (2024), 3459-3471 IEEE trans. ind. appl. IEEE Transactions on Industry Applications 0093-9994 4008379 http://zaguan.unizar.es/record/132259/files/texto_completo.pdf Versión publicada 3571206 http://zaguan.unizar.es/record/132259/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:132259 articulos driver 2026-02-17-20:23:32 ARTICLE