Advantages of Robust Control for Series Load Frequency Controlled Induction Heating Inverters

Abstract

The new generation of microcontrollers on 32 bits allows the implementation of fast and complex controlling algorithms, like robust control. In the present paper the advantages of robust control will be presented in comparison with classic PI controller design using root locus method. The frequency controlled series resonant load induction heating inverter model will be presented with uncertainties together with the design approach for computing H and PI controller. Simulation results will be compared for the same plant using the two controllers.