Power Distribution in Coupled Multiple-Coil Inductors for Induction Heating Appliances

In this paper, a theoretical model of multiple-coil inductors supplied by resonant half-bridge inverters in induction hobs is proposed. The model includes the most relevant coupling effects and allows the calculation of the coil currents and the inverter’s output power for any modulation parameters, even with different switching frequencies and duty cycles. Furthermore, the power distribution in the pan is calculated and the relationship with the output powers of the power stage is obtained, so that they can be controlled to obtain a homogeneous power distribution and a more uniform heating.

[1]  G. W. Ludwig,et al.  Coupled inductance and reluctance models of magnetic components , 1991 .

[2]  Oscar Lucía,et al.  Computational Modeling of Two Partly Coupled Coils Supplied by a Double Half-Bridge Resonant Inverter for Induction Heating Appliances , 2013, IEEE Transactions on Industrial Electronics.

[3]  H. Fujita,et al.  Estimating Method of Heat Distribution Using 3-D Resistance Matrix for Zone-Control Induction Heating Systems , 2012, IEEE Transactions on Power Electronics.

[4]  Claudio Carretero,et al.  Normal-Mode Decomposition of Surface Power Distribution in Multiple-Coil Induction Heating Systems , 2016, IEEE Transactions on Magnetics.

[5]  J. Acero,et al.  Analysis and Modeling of Planar Concentric Windings Forming Adaptable-Diameter Burners for Induction Heating Appliances , 2011, IEEE Transactions on Power Electronics.

[6]  Angelo Raciti,et al.  Generalized PWM–VSI Control Algorithm Based on a Universal Duty-Cycle Expression: Theoretical Analysis, Simulation Results, and Experimental Validations , 2007, IEEE Transactions on Industrial Electronics.

[7]  Carlos Sagüés,et al.  Power Distribution in Coupled Multiple-Coil Inductors for Induction Heating Appliances , 2015, IEEE Transactions on Industry Applications.

[8]  Diego Puyal,et al.  Load-Adaptive Control Algorithm of Half-Bridge Series Resonant Inverter for Domestic Induction Heating , 2009, IEEE Transactions on Industrial Electronics.

[9]  J. Acero,et al.  Domestic Induction Appliances , 2010, IEEE Industry Applications Magazine.

[10]  Francois Costa,et al.  Principle of a multi-load/single converter system for low power induction heating , 2000 .

[11]  Praveen K. Jain,et al.  A Two-Stage Resonant Inverter With Control of the Phase Angle and Magnitude of the Output Voltage , 2007, IEEE Transactions on Industrial Electronics.

[12]  Chuang Liu,et al.  Cascade Dual Buck Inverter With Phase-Shift Control , 2012, IEEE Transactions on Power Electronics.

[13]  Charles Joubert,et al.  Frequency-Synchronized Resonant Converters for the Supply of Multiwinding Coils in Induction Cooking Appliances , 2007, IEEE Transactions on Industrial Electronics.

[14]  C. Sagues,et al.  Induction heating appliance with a mobile double-coil inductor , 2015, 2014 IEEE Industry Application Society Annual Meeting.

[15]  C. Bernal,et al.  Intermodulation distortion in 1SW-ZVS multi-inverter for induction heating home appliances , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[16]  H. Fujita,et al.  Dynamic Analysis and Control for Resonant Currents in a Zone-Control Induction Heating System , 2013, IEEE Transactions on Power Electronics.

[17]  A. M. Green,et al.  Operation of inverters supplying mutually coupled induction heating loads , 1996 .

[18]  S. Caux,et al.  Multiphase System for Metal Disc Induction Heating: Modeling and RMS Current Control , 2012, IEEE Transactions on Industry Applications.