Study on Sliding Mode Variable Structure Control for Induction Heating Power Supply

The analysis literature about the series resonant converter for Induction heating based on quasi-sliding mode variable structure control, The mathematic model of series resonant converter for Induction heating are established, including the discrete-time integrator switch surface and the control law of sliding mode which is design in the paper not only hold the high robustness, but also highly reduce the chattering which is bad to the control system. The MATLAB is used as simulation tool to establish the simulation model of the inverter and control system. Simulation results show the sliding mode control possessed of a better dynamic performance and improved robustness to the external perturbations.