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

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openAccess

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Volume Title

A4 Artikkeli konferenssijulkaisussa

Date

2017-11-09

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Mcode

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Language

en

Pages

10
1-10

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

Description

Keywords

AC/AC converter, Battery charger, Contactless power supply, Electric vehicle, Resonant converter, Soft switching

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Citation

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