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Analysis of three-level ZVS PWM inverter for induction heating applications
Author(s)
Jangwanitler, A.
Songboonkaew, J.
Thammasiriroj, W.
Balda, J. C.
Date Issued
December 1, 2007
Type
Conference Paper
Abstract
This paper presents an operation analysis of a high frequency three-level (TL) PWM inverter applied for an induction heating applications. The feature of TL inverter is to achieve zero-voltage switching (ZVS) at above the resonant frequency. The circuit has been modified from the full-bridge inverter to reach high-voltage with low-harmonic output. The device voltage stresses are controlled in a half of the dc input voltage. The prototype operated between 70 and 78 kHz at the dc voltage rating of 580 V can supply the output power rating up to 3000 W. The iron has been heated and hardened at the temperature up to 800°C. In addition, the experiments have been successfully tested and compared with the simulations. ©2006 IEEE.
Citation
Conference Proceedings Ipemc 2006 Ces IEEE 5th International Power Electronics and Motion Control Conference, 2, 1353-1357, 2007