Optimal Power Improved Method For Induction Heating Application With High Resonant Boost Inverter

Abstract

The induction heating is an primary work in many of the industrial applications and also it is
used for medical products manufacturing units. This paper proposes an interleaved resonant
boost inverter featuring single phase module to achieve high efficiency and performance IH
power supply. By reducing the current of power switching device the efficiency of the
converter can be increased by incorporating proposed technology. The current ripple can be
reduced by implementing interleaved converter. The proposed converter can be tested by
designing suitable control strategies. It is important to note the role and operation of the dclink capacitor in the proposed converter. From the point of view of the equivalent inverter
side, the inverter can be modeled as a pure resistor if constant modulation parameters are
applied. By combining this fact with the use of a small dc-link capacitor, a mains power
factor close to the unit can be achieved. In the case of the proposed converter, a capacitor
large enough to filter the high frequency harmonics but still providing a sinusoidal current
consumption will be selected.