A variable-frequency asymmetrical voltage-cancellation control for inductive power transfer with series-series compensation

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Publication Details

Author list: Ngamrungsiri H., Naetiladdanon S., Sangswang A.

Publisher: Hindawi

Publication year: 2016

ISBN: 9781467397490

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988884839&doi=10.1109%2fECTICon.2016.7561311&partnerID=40&md5=05a92dc841a3d946599044bc08824813

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presents a variable-frequency asymmetrical voltage-cancellation (AVC) control technique for inductive power transfer system. The commonly used series-series compensation topology is focused. The principle of the proposed method is to avoid unintentionally hard switching operation suffered in traditional fixed frequency AVC control when operated under low output power. With the inclusion of a phase-locked loop circuit, the inverter frequency is automatically adjusted to compensate for the shifted phase of the fundamental output voltage to ensure zero-voltage switching (ZVS) operation. The output power is regulated by varying both the phase shift and switching frequency. The validity of the proposed method is verified by computer simulation and experimental hardware prototype. ฉ 2016 IEEE.

Keywords

asymmerical voltage-cancellation, full-bridge inverter, inductive power transfer, resonance, series-series topoloogy, Variable-frequency control, zero-voltage-switching