Frequency analysis of a ZVS parallel quasi resonant inverter for a solar based induction heating system

This paper proposes the design of an efficient zero voltage switching parallel quasi resonant inverter for small scale industrial and domestic applications using solar energy as the dc input and induction heating technology. The resonant inverter is designed using PSIM software and the designed model is verified using the PROTEUS software which operates for a frequency around 20KHz under ZVS condition for different equivalent heating workpiece resistance. The resonant frequency can be varied over a range by altering the duty cycle values. The detail design of the resonant inverter using PSIM and PROTEUS along with the simulation results of ZVS condition and data analysis are presented in this paper.