Feasible Evaluation of a Full-Bridge Resonant Inverter for Induction Heating Appliances with Vienna Rectifier for EMI-RFI Suppression

The present work propound the incorporation of Vienna rectifier (VR) as an integral part of the induction heating (IH) system for vanquishing of electromagnetic interference (EMI) and radio frequency interference (RFI). The IH system employs high frequency switching in the resonant inverter which results in the production of high frequency harmonics. The latter has an ingrained proclivity to flow towards the power supply which in turn the results in the exacerbation of power quality. To overcome this problem, a VR has been proposed at the input of the IH system. The former is based on waveform shaping to obtain a completely sinusoidal nature and thus, it offers a better THD than the other existing techniques using active and passive filters. Moreover, in the present work, priority has been given to the design of an optimized controller for VR for its use as an imperative and amalgamated past of the IH system.