Household induction cooking system based on a grid-connected photovoltaic system

Induction heating is regarded as a clean cooking technology, whose prominent advantages include contactless energy transfer, controllable heating rate, and safety. In household applications, it is expected that this approach is supposed to replace conventional gas stoves aiming at a more sustainable future. The increase of energy consumption associated with this trend cannot be neglected, while distributed generation (DG) stands out as a prominent solution to mitigate the impact on the power system. In this context, this work presents an induction heating system consisting of the integration of power electronic converters and a grid-connected photovoltaic (PV) system. Based on existing solutions available in the literature, it is possible to supply the induction stove with two distinct energy sources: the ac grid and PV modules. A high-voltage step-up dc–dc boost converter is employed to create a dc link responsible for connecting the PV system to the grid. The dc link is also used to supply a class DE parallel resonant inverter associated with the induction stove, which requires a low component count. Besides, the PV modules are capable of providing up to 3 kW under standard test conditions. Thus, part of the generated energy is used to supply the heating system, while the remaining portion is injected into the grid. Simulation results are presented to assess the performance of the whole system in steady-state and transient conditions, demonstrating that it is capable of operating at the maximum power point and injecting nearly sinusoidal currents with high power factor.