Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 9, Pages 8006-8016Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3013756
Keywords
Resonant inverters; Impedance; Zero voltage switching; Resistance; Resonant frequency; Equivalent circuits; Domestic induction heating; induction efficiency; single-ended resonant inverter; nonferromagnetic vessel
Categories
Funding
- National Natural Science Foundation of China [51677086]
- Industrial Prospective and Key Core Technology Funding of Jiangsu Province [BE2019113]
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This article introduces a design of autotransformer coil for domestic induction heating, utilizing a single-ended resonant inverter. The proposed system achieves higher efficiency, increased output power and improved compatibility with nonferromagnetic vessels.
In this article, an autotransformer coil for domestic IH adopting single-ended resonant inverter (SE-IH) is proposed. The proposed SE-IH can simultaneously meet the impedance requirements of ZVS and high induction efficiency at a higher frequency, resulting in a higher efficiency, increased output power and improved compatibility with nonferromagnetic vessels. Based on the proposed accurate wide-frequency impedance model of the coil-vessel system, the induction efficiency of the proposed SE-IH is analyzed, as well as the impedance condition for ZVS. The selection of the operating frequency and the design of the proposed coil for induction efficiency optimization are then given. Finally, a prototype of the proposed domestic SE-IH is fabricated, achieving 2269-W output power with 99.26% induction efficiency for GB45 steel vessel and 932-W output power with 90.46% induction efficiency for aluminum vessel.
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