Three Phase PWM AC/DC Converter with Leading Current Compensation Control

AC Filter Capacitor 에 따른 진상 전류 보상 회로를 갖는 $3{\phi}$ PWM AC/DC 컨버터

This paper proposes a novel PWM technique for a three phase current fad type converters. A minor loop compensation method is introduced to compensate leading current and to minimize input line current (Iu) distortion resulting from the resonance between AC filter capacitor and source inductance of power system. This PWM converter has excellent characterics as next. The control system is simply designed, and the operation with unity power factor can be easily obtained by automatic compensating the leading current of the filter circuit. Also. the three phase sinusoidal input current can be obtained.