Quantitative Design and Implementation of an Induction Cooker for a Copper Pan

The nonferromagnetic pans with a low equivalent resistance are desired to generate sufficient power for heating by larger eddy current. First, Maxwell 3D is used estimate the of copper pan and select optimal number turns induction coil Litz wire according its size limitations efficiency. Furthermore, resonant frequency determined maximizing Finally, electric parameters obtained construct simulation environment design control strategies. A full-wave rectifier, buck converter, half-bridge converter cascaded converter. Because high quality factor pan, slope ratio current obtained. Therefore, operated at fixed switching reduce low-frequency oscillations DC link voltage third-harmonic injection, which enables control, increases satisfies standard, IEC-61000-3-2 Class A. Moreover, estimator developed detect various positions on determine frequency. TMS320F28075-based 100 peak built. effect loss then measured, maximum efficiency 69%. measurement results verify effectiveness proposed cooker exhibits excellent agreement simulated results.