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Minimizing coil power loss in a direct AC/AC converter-based contactless electric vehicle charger

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A4 Artikkeli konferenssijulkaisussa

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en

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10

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Proceedings of the 19th European Conference on Power Electronics and Applications, EPE'17 ECCE Europe, pp. 1-10, European Conference on Power Electronics and Applications

Abstract

This paper explains an optimum load analysis to reduce power loss in a direct AC/AC converter-based contactless electric vehicle charger. The converter has a fewer number of bi-directional switches than a matrix converter and it uses a resonant circuit to utilize zero-current switching. Output power and power loss depend on coupling factor and output load. A proper load value leads to low loss and maximum transmission efficiency. The value was derived using an iterative-based Weierstrass' method due to converter dynamic switching frequency. Other parameters such as link efficiency, link gain and power loss ratio were derived based on steady-state analysis. Simulation results are then presented to validate the theoretical analyses.

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Kusumah, F P & Kyyrä, J 2017, Minimizing coil power loss in a direct AC/AC converter-based contactless electric vehicle charger. in Proceedings of the 19th European Conference on Power Electronics and Applications, EPE'17 ECCE Europe. European Conference on Power Electronics and Applications, IEEE, pp. 1-10, European Conference on Power Electronics and Applications, Warsaw, Poland, 11/09/2017. https://doi.org/10.23919/EPE17ECCEEurope.2017.8099168

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