摘要

The paper proposes a novel type of series and parallel resonance modes for induction heating based on fuzzy control. It can solve the problem that the output voltage is limited by the input voltage under the condition of series resonance by adding a parallel resonant circuit component. A new phase-shifted PWM modulation based on fuzzy control is introduced which has advantage of independence on mathematical models, decoupling, adaptive and robust in rejecting. The fuzzy rules are edited by experience. The switching devices work at zero voltage soft-switching modes by design, solve the problems of large switching losses and high switching device stress resulting from high frequency.