예열용 단상교류전압제어기 위상 제어 기법

Phase angle control techniques of single-phase AC voltage controller for preheating

A single-phase ac voltage controller controls the magnitude of ac voltage by regulating the delay angle of the input ac voltage. In this paper, the SCR gate signal generation is digitalized by using AVR, and the delay angle control technique is proposed in order to generate a balanced ac output voltage under unbalanced ac input voltage conditions.