The Control of Single Phase High Power Factor PWM converter using Siding mode Observer without a source voltage sensor

슬라이딩 모드 관측기를 이용한 전원전압 센서없는 단상 PWM 컨버터의 고역율 제어

In this paper, a method for controlling a single phase PWM AC/DC converter without any voltage sensors is proposed. In this method, the source voltage is estimated by sliding mode observer and input current is synchronized with the estimated source voltage. The source voltage is estimated by current error between the actul and the estimated current. The experimental results confirm the validity of the proposed control method.