Toward a nonlinear control of an AG-DG-PWM converter dedicated to induction heating

Abstract

In this paper a nonlinear control strategy applied to an AC-DC-pulse width modulation @WM) converter is developed and simulated. First a nonlinear system modeling is derived with state variables of the input current and the output voltage by using power balance of the input and output. The system is linearized and decoupled, and then a state feedback law is obtained. For robust control of parameter perturbation, integrators are added to the exact feedback control law. The simulation is provided to veriÿ the validity of the control algorithm.