A model predictive control of an LLC resonant inverter for tin melting application

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Author list: Kranprakon P., Sangswang A., Naetiladdanon S., Mujjalinwimut E.

Publisher: Hindawi

Publication year: 2017

Volume number: 2017-January

Start page: 3773

End page: 3778

Number of pages: 6

ISBN: 9781538611272

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046631913&doi=10.1109%2fIECON.2017.8216643&partnerID=40&md5=e5b34c73c99858ede3daa0a0e30e0887

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presents a model predictive control of a resonant inverter with LLC load configuration. The targeted application is an induction furnace. The proposed control requires neither phase-locked loop control nor PI tuning since the LLC load model is used to predict future current values for the load. An objective function is formulated such that a proper operating frequency reflecting the targeted current to the load is obtained. The Spike current on the switching devices caused by load parameter variation at Curie's temperature has been eliminated by a phase limit control. The proposed controls have been validated through computer simulation and experiment. With the proposed predictive control, the experimental results of heating a 300-gram Tin from room temperature until its melting point at 232 ฐC are provided. ฉ 2017 IEEE.

Keywords

LLC, model predictive control