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http://dx.doi.org/10.6113/JPE.2012.12.6.851

Self-Oscillating Switching Technique for Current Source Parallel Resonant Induction Heating Systems  

Namadmalan, Alireza (Dept. of Electrical and Electronics Eng., The Amirkabir University of Technology)
Moghani, Javad Shokrollahi (Dept. of Electrical and Electronics Eng., The Amirkabir University of Technology)
Publication Information
Journal of Power Electronics / v.12, no.6, 2012 , pp. 851-858 More about this Journal
Abstract
This paper presents resonant inverter tuning for current source parallel resonant induction heating systems based on a new self oscillating switching technique. The phase error is suppressed in a wide range of operating frequencies in comparison with Phase Locked Loop (PLL) techniques. The proposed switching method has the capability of tuning under fast changes in the resonant frequency. According to this switching method, a multi-frequency induction heating (IH) system is proposed by using a single inverter. In comparison with multi-level inverter based IH systems, the advantages of this technique are its simple structure, better transients and wide range of operating frequencies. A laboratory prototype was built with an operating frequency of 35 kHz to 55 kHz and 300 W of output power. The performance of the IH system shows the validity of the new switching technique.
Keywords
Current source parallel resonant inverters; Induction heating; Self-oscillating switching technique;
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Times Cited By KSCI : 1  (Citation Analysis)
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