Optimisation of Energy-Efficiency of Quasi-Resonant Induction Cookers
Conference: Internationaler ETG-Kongress 2013 – Energieversorgung auf dem Weg nach 2050 - Symposium 1: Security in Critical Infrastructures Today
11/05/2013 - 11/06/2013 at Berlin, Deutschland
Proceedings: Internationaler ETG-Kongress 2013 – Energieversorgung auf dem Weg nach 2050
Pages: 8Language: englishTyp: PDF
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Authors:
Sheikhian, Iraj; Kaminski, Nando (University of Bremen, Germany)
Voß, Stephan; Scholz, Wolfgang (Infineon Technologies AG, Neubiberg, Germany)
Herweg, Elmar (E.G.O. GmbH, Oberderdingen, Germany)
Abstract:
In this paper, the optimisation possibilities of a quasi-resonant induction cooker are investigated. Simulations show that main losses of the power section of the induction cooker occur in the heating coil and the power switch (RC-IGBT). The performance of the induction coil can be improved mainly by minimising the coil resistance. In this work, the IGBT-optimisation is based on the reduction of tail current in soft switching mode. The tail current is reduced by using lifetime engineering, changing anode-doping, and reduction of the IGBT-thickness. The losses of the optimised IGBT are about 30% lower then the standard IGBT. As a result, the cooling system of the IGBT can be smaller and cheaper. Together with some optimisations of the circuit the overall losses of the system could be improved by almost 10% or 1 percentage point.