Travelling
wave induction heating (TWIH) suffers from severe interference between the
coils, which significantly reduces its efficiency. A strategy for decoupling
the currents in TWIH is presented, based on the anti-series or anti-parallel
connection of several inductors. The study investigates the coupling effect in
terms of amplitude and phase shift as functions of current and frequency,
respectively, including resonance behavior. In addition, the effects of
deviations of the inductor properties are analyzed. Measurements indicate that
the strategy produces very good results, almost eliminating the coupling
effect, increasing the efficiency, and simplifying control. Simulated and
measured results of the heating pattern are compared and efficiency values and
power densities are presented.
References
[1]
Acero, J., Burdío, J.M., Barragán, L.A. and Alonso, R. (2007) A Model of the Equivalent Impedance of the Coupled Winding-Load System for Domestic Induction Heating Application. IEEE International Symposium on Industrial Electronics, Vigo, 4-7 June 2007, 491-496.
[2]
Souley, M., Spagnolo, A., Pateau, O., Paya, B., Hapiot, J., Ladoux, P. and Maussion, P. (2009) Characterization Methodology for the Impedance Matrix of Multi-Coil Induction Heating Device. 6th International Conference on Electromagnetic Processing of Materials EPM, Dresden.
[3]
Rodriguez, J.I. and Leeb, S.B. (2006) A Multilevel Inverter Topology for Inductively-Coupled Power Transfer. IEEE Transactions on Power Electronics, 21, 1607-1617. http://dx.doi.org/10.1109/TPEL.2006.882965
[4]
Fujita, H., Uchida, N. and Ozaki, K. (2011) A New Zone-Control Induction Heating System Using Multiple Inverter Units Applicable under Mutual Magnetic Coupling Conditions. IEEE Transactions on Power Electronics, 26, 2009-2017. http://dx.doi.org/10.1109/TPEL.2010.2101084
[5]
Carretero, C., Lucia, O., Acero, J. and Burdio, J.M. (2013) Computational Modeling of Two Partly Coupled Coils Supplied by a Double Half-Bridge Resonant Inverter for Induction Heating Appliances. IEEE Transactions on Industrial Electronics, 60, 3092-3105. http://dx.doi.org/10.1109/TIE.2012.2202360
[6]
Alotto, P., Spagnolo, A. and Paya, B. (2011) Particle Swarm Optimization of a Multi-Coil Transverse Flux Induction Heating System. IEEE Transactions on Magnetics, 47, 1270-1273. http://dx.doi.org/10.1109/TMAG.2010.2086439
[7]
Pham, H.N., Fujita, H., Uchida, N. and Ozaki, K. (2012) Heat Distribution Control using Current Amplitude and Phase Angle in Zone-Control Induction Heating Systems. Proceedings IEEE Energy Conversion Congress and Exposition (ECCE), Raleigh, 15-20 September 2012, 2474-2481. http://dx.doi.org/10.1109/ECCE.2012.6342403
Qaseer, L.J.B. (2010) Analysis of Double and Single Sided Induction Heating Systems by Layer Theory Approach. Journal of Electromagnetic Analysis & Applications, 2, 403-410. http://dx.doi.org/10.4236/jemaa.2010.27052
[10]
Wang, J., Wang, Y., Ho, S.L., Yang, X., Fu, W.N. and Xu, G. (2011) Design and FEM Analysis of a New Distributed Vernier Traveling Wave Induction Heater for Heating Moving Thin Strips. IEEE Transaction on Magnetics, 47, 2612-2615. http://dx.doi.org/10.1109/TMAG.2011.2154379
[11]
Ho, S.L., Wang, J., Fu, W.N. and Wang, Y.H. (2009) A Novel Crossed Travelling Wave Induction Heating System and Finite Element Analysis of Eddy Current and Temperature Distribution. IEEE Transactions on Magnetics, 45, 4777-4780. http://dx.doi.org/10.1109/TMAG.2009.2021667
[12]
Wang, Y., Wang, J., Pang, L., Ho, S.L. and Fu, W.N. (2011) An Advanced Double-Layer Combined Windings Transverse Flux System for Thin Strip Induction Heating. Journal of Applied Physics, 109, Article ID: 07E511.
[13]
Dughiero, F., Lupi, S. and Siega, P. (1995) Analytical Calculation of Double Sided Travelling Wave Induction Heating Systems. COMPEL, 14, 251-255. http://dx.doi.org/10.1108/eb051951
[14]
Dughiero, F., Lupi, S., Nemkov, V. and Siega, P. (1994) Travelling Wave Inductors for the Continous Induction Heating of Metal Strips. Proceedings of the 7th Mediterranean Electrotechnical Conference, 3, 1154-1157. http://dx.doi.org/10.1109/MELCON.1994.380864
[15]
Svensson, L., Frogner, K., Cedell, T., Jeppsson, P. and Andersson, M. (2012) Soft Magnetic Moldable Composites— Properties and Applications. Journal of Magnetism and Magnetic Materials, Elsevier.
[16]
Frogner, K., Cedell, T. and Andersson, M. (2014) Induction Heating Using a Two-Phase Travelling Wave Setup. Internatinal Journal of Applied Electromagnetics and Mechanics, 44, 217-226.
[17]
Frogner, K., Cedell, T. and Andersson, M. (2012) A Method for Fast Characterization of Power Efficiency in Induction Heating Processes. Proceedings of the Swedish Production Symposium, Sweden.
[18]
Nikolov, G.T. and Valchev, V.C. (2009) Nanocrystalline Magnetic Materials versus Ferrites in Power Electronics. Procedia Earth and Planetary Science, 1, 1357-1361.
[19]
Ali, A., Bukanin, V., Dughiero, F., Lupi, S., Nemkov, V. and Siega, P. (1994) Simulation of Multiphase Induction Heating Systems. Proceedings of the 2nd International Conference on Computation in Electromagnetics, UK, 211-214. http://dx.doi.org/10.1049/cp:19940054
