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Control Strategy of Resonant Load Identification for Free Zone Induction Heating Systems with WBG-based Multiple Inverters

Domestic induction cooktops can only be heated in the designated circular cooking zone. Therefore, this paper proposes a control strategy and implementation of the free zone induction cooktop (FZIC) system that can freely heat multiple pots regardless of size and location over the entire area of the...

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Main Authors:	Park, Sang Min, Noh, Young-Su, Hyon, Byoung Jo, Park, Joon Sung, Kim, Jin-Hong, Lee, Byoung Kuk
Format:	Conference Proceeding
Language:	English
Subjects:	curve-fitting method (CFM) Density measurement Electromagnetic heating free zone induction cooktop (FZIC) GaN HEMT Induction heating (IH) Inverters Power system measurements Prototypes Real-time systems Resonant converters series resonant converter (SRC)
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creator	Park, Sang Min Noh, Young-Su Hyon, Byoung Jo Park, Joon Sung Kim, Jin-Hong Lee, Byoung Kuk
description	Domestic induction cooktops can only be heated in the designated circular cooking zone. Therefore, this paper proposes a control strategy and implementation of the free zone induction cooktop (FZIC) system that can freely heat multiple pots regardless of size and location over the entire area of the induction cooktop. The FZIC system is implemented by applying wide-bandgap (WBG) power semiconductors to improve power density and efficiency. A control strategy using the power curve fitting method (CFM) is presented to quickly detect parameter changes in multi-resonant loads. In addition, a control algorithm is established to enable immediate reheating by identifying the location information of the pot in real time when the pot moves during heating. To evaluate the performance of the control algorithm strategy of the proposed FZIC system, the results of IH experiments based on the 3.2kW FZIC prototype are presented.
doi_str_mv	10.23919/ICEMS52562.2021.9634566
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source	IEEE Xplore All Conference Series
subjects	curve-fitting method (CFM) Density measurement Electromagnetic heating free zone induction cooktop (FZIC) GaN HEMT Induction heating (IH) Inverters Power system measurements Prototypes Real-time systems Resonant converters series resonant converter (SRC)
title	Control Strategy of Resonant Load Identification for Free Zone Induction Heating Systems with WBG-based Multiple Inverters
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