Initial Current Injection Method of a Direct Three-Phase to Single-Phase AC/AC Converter for Inductive Charger

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openAccess

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Journal Title

Journal ISSN

Volume Title

A4 Artikkeli konferenssijulkaisussa

Date

2018-10-22

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Mcode

Degree programme

Language

en

Pages

7
3870-3876

Series

Proceedings of the 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, International Conference on Power Electronics

Abstract

This paper explains an initial current injection method of a direct three-phase to single-phase AC/AC converter for an inductive charger. The converter has a lesser number of switches than a matrix converter and uses a resonant circuit to utilize zero-current switching. The method applies a DC resonant charging to charge a primary resonant capacitor, by taking advantage of the converter topology. The charged voltage is used to boost the initial current since in practice an affordable current transducer has only a limited measurement range, due to its accuracy and noise characteristics. The method is applied to kick-start the inductive charger without adding an amplification circuit to the current transducer output. Simulation results are presented to verify theoretical calculations.

Description

Keywords

AC/AC converter, battery charger, contactless power supply, resonant converter

Other note

Citation

Kusumah, F P & Kyyrä, J 2018, Initial Current Injection Method of a Direct Three-Phase to Single-Phase AC/AC Converter for Inductive Charger . in Proceedings of the 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 ., 8507417, International Conference on Power Electronics, IEEE, pp. 3870-3876, International Power Electronics Conference, Niigata, Japan, 20/05/2018 . https://doi.org/10.23919/IPEC.2018.8507417