A comparison of asymmetrical control strategies for domestic induction cooking applications with low-quality factor loads

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Publication Details

Author list: Yachiangkam S., Sangswang A., Naetiladdanon S.

Publisher: Hindawi

Publication year: 2016

ISBN: 9781467397490

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988812004&doi=10.1109%2fECTICon.2016.7561441&partnerID=40&md5=7f319697328a8672dc15569b0eac405e

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presents a comparison of two control strategies between the fixed-frequency method and the variable-frequency method for output power control of a full-bridge resonant inverter in domestic induction cooking to address an issue of the distorted load current due to low-quality-factor load. The control strategies are based on the asymmetrical control using positive half-cycle control while operating under zero-voltage-switching (ZVS) and non-zero-voltage-switching (NON-ZVS) conditions. Load characteristics of different types of cooking materials are analyzed. The variable-frequency method can improve the inverter efficiency over all ranges of power compared with the fixed-frequency method due to reduction of the switching losses in the devices of inverter. The functionality and benefits of the proposed control strategies are verified through the experimental results. ฉ 2016 IEEE.

Keywords

asymmetrical control, induction cooking, non-zero-voltage switching, Resonant inverter, zero-voltage switching