Feedforward Compensation Method of Output Voltage with 3Phase AC/DC PWM Converter on DC Distribution System for Improved Response

응답성 향상을 위한 직류배전용 3상 AC/DC PWM 컨버터 출력전압 전향보상 기법

This paper proposes the feedforward compensation method of output voltage with 3phase AC/DC PWM converter on DC distribution system for improved response. AC/DC PWM converter on DC distribution is required power supply of high quality because of renewable energy sources and load links. In general, Feedforward compensation method of 3phase AC/DC PWM converter receives the sensor input to the output current, load power. Resulting, error of the sensing values and communication cause time delay. Therefore, Feedforward compensation method through only the output voltage is proposed in this paper. The feedforward compensation method through only the output voltage can be applied to the two-level AC/DC PWM converters, as well as multi-level converter or inverter.