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Enhanced load adaptive modulation of induction heating series resonant inverters to heat various-material vessels.
- Source :
-
Journal of Power Electronics . Jun2022, Vol. 22 Issue 6, p1020-1032. 13p. - Publication Year :
- 2022
-
Abstract
- Nowadays all-metal induction heating (IH) cooktops have become popular for heating various pots quickly and safely. A load adaptive modulation (LAM) method was proposed to improve the IH power delivery capability and the cost-effectiveness of an all-metal IH system. However, this method shows poor power conversion efficiency under light-load conditions since a high switching loss is induced using the pulse frequency modulation (PFM) method in the series resonant inverters for IH applications. In this paper, a multi-mode control strategy for an IH system employing the LAM method is proposed to improve light-load efficiency when compared with the conventional LAM method. The proposed multi-mode control algorithm automatically changes its modulation according to the pots' material-dependent resistance. The modulation method is selected to improve the light-load efficiency using the proposed control strategy. Experimental results demonstrate the validity and performance of the proposed multi-mode control algorithm with a 2-kW prototype IH series resonant inverter and various-material pots. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15982092
- Volume :
- 22
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 157133860
- Full Text :
- https://doi.org/10.1007/s43236-022-00409-x