Characteristic Analysis of Thyristor PWM Rectifier for low-frequency Induction Heating System

저주파 유도가열 장치용 싸이리스터 PWM 정류기의 특성분석

This paper proposes a new induction heating system composed of a thyristor PWM rectifier with a resonant commutation circuit. The operation of proposed system as first analyzed by a theoretical approach with equivalent circuits. And its verification was performed by computer simulations with EMTP. The proposed system can provide a solution for the power factor problem of the existing high-power induction heating system, which uses the line-commutated thyristor bridge in rectifier side.