A Nonlinear Controller for Parallel Induction Heating Systems

This work develops a nonlinear controller for an induction heating system using a parallel resonant inverter. The proposed controller should be seen as a nonlinear alternative to the standard Phase-locked loop technique which uses a PI regulator. The asymptotic stability of the closed loop system is demonstrated using a Lyapunov function. The controller is experimentally validated and its performances (robustness and disturbance rejection) are compared to those of a PI regulator.

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