Open AccessA series-resonant inverter with extended topology and pulse-density-modulation control for induction heating applications
Author(s) -
P. Herasymenko,
V.O. Pavlovskyi,
O.M. Yurchenko
Publication year - 2022
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijpeds.v13.i1.pp348-367
Subject(s) - topology (electrical circuits) , inverter , capacitor , pulse width modulation , pulse density modulation , modulation (music) , series (stratigraphy) , voltage , control theory (sociology) , quality (philosophy) , pulse (music) , electronic engineering , control (management) , computer science , engineering , physics , electrical engineering , pulse amplitude modulation , acoustics , biology , paleontology , quantum mechanics , artificial intelligence
This paper presents a series-resonant inverter (SRI) with an extended topology using a pulse-density modulation (PDM) control method. Theoretical analysis shows that the use of the SRI with extended topology and the PDM control (extended PDM-SRI) allows reducing the fluctuation of the SRI output current by more than 40% at the quality factor of 5 compared to a conventional SRI with the traditional PDM control. To eliminate drawbacks of the extended PDM-SRI, specificities of PDM switching sequences to ensure the zero-voltage-switching (ZVS) operation are discussed in detail, and a solution to the voltage imbalance across the capacitors of the extended topology is proposed. Simulation analysis of the extended PDM-SRI confirmed the effectiveness of using the proposed solutions to eliminate the drawbacks. The feasibility of the proposed SRI is confirmed by testing on a 2.2 kW experimental setup.