A Fuzzy Control Mothed to Obtain the Steady Output Power in Induction Cooker Power Control

The load of the induction cooker is the vessels heated by it. The equivalent inductance will change when the size or material of the vessels changes. The resonance frequency of the main power circuit will also change, which will make the output power unstable. To solve this problem, in this paper we put forward a double closed-loop control configuration and a fuzzy control method to ensure the steady output power when the load changes. We use this method in the induction cooker control system and gain a satisfactory result.