Home > Articles > Series-Resonant Matrix Inverter with Asymmetrical Modulation for Improved Power Factor Correction in Flexible Induction Heating Appliances
Resumen: Induction heating appliance operation is constrained by the nonlinear pot material behavior under the generated magnetic field. The equivalent load seen by the inverter varies with the intensity of the field, meaning that this variation is dependent on the mains voltage. In flexible-surface induction cooktops, this fact is combined with a high coil number and different pots to be powered simultaneously, increasing the complexity to control the transmitted power while maintaining proper mains current consumption. In this article, two noncomplementary asymmetrical modulations with in-cycle parameter variation are proposed for improved power factor correction while avoiding the need for switching frequency variation and intermodulation noise in multiload systems. The proposed strategies are analyzed and experimentally tested using a 3.6 kW multi-inverter prototype featuring five induction coils. Idioma: Inglés DOI: 10.1109/TIE.2022.3161789 Año: 2023 Publicado en: IEEE Transactions on Industrial Electronics 70, 2 (2023), 1421-1430 ISSN: 0278-0046 Factor impacto JCR: 7.5 (2023) Categ. JCR: AUTOMATION & CONTROL SYSTEMS rank: 6 / 84 = 0.071 (2023) - Q1 - T1 Categ. JCR: INSTRUMENTS & INSTRUMENTATION rank: 2 / 76 = 0.026 (2023) - Q1 - T1 Categ. JCR: ENGINEERING, ELECTRICAL & ELECTRONIC rank: 25 / 352 = 0.071 (2023) - Q1 - T1 Factor impacto CITESCORE: 16.8 - Control and Systems Engineering (Q1) - Electrical and Electronic Engineering (Q1)