Keywords
induction heating equipment
pulse density modulation
PDM транзисторний резонансний інвертор напруги
установка індукційного нагріву
низькочастотна імпульсна модуляція
НЧ імпульсна модуляція
How to Cite
Abstract
Using a pulse density modulation (PDM) for regulating and stabilization of a transistor converter’s load current for induction heating equipment, with the number of pulses during a modulation period divisible to the half-period of an inverter’s output voltage is considered in this paper. A mathematical model of the resonant voltage inverter under PDM and analytical equations for maximum and minimum current amplitudes and their difference determining the swing of the ripple current’s amplitude were obtained. It is made clear that PDM with the number of pulses during a modulation period which is divisible to the half-period of the inverter output voltage allows, on average, to reduce the swing of the ripple current’s amplitude and enlarge the regulation range of the load current. References 6, figures 4.
References
Berkovych E.Y., Ivenskyi H.V., Yoffe Yu.S., Matchak A.T., Morhun V.V. High frequency thyristor converters. – Leninhrad: Energiia. – 1973. – 200 p. (Rus)
Guillermo Martin Segura. Induction heating converter's design, control and modeling applied to continuous wire heating // Doctoral Thesis, Universitat Politecnica de Catalunya Departament d'Enginyeria Electrica, Barcelona, June 2012.
Herasymenko P.Yu. A resonant voltage inverter with PDM for induction heating equipment // Doctoral Thesis, Institute of Electrodynamics of National Academy of Science of Ukraine, Kyiv, 2010. (Ukr)
Hutsaliuk V.Ya., Herasymenko P.Yu., Sliesarevskyi I.O. Phase-locked loop systems voltage resonant transistor converter induction heating equipment // Tekhnichna Elektrodynamika. – 2015. – No 1. – Pp. 37–42. (Rus)
The VLSI Handbook. – NW.: CRC Press, 2006. – 2322 p.
Zeman S.K. Sandyrev O.E. A pulse-code method of controlling a technological parameter of induction heating equipment’s frequency converter // Bulletin of Tomsk Polytechnic University. – 2007. – №1. – Pp. 191–196. (Rus)
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