PWM strategies with duality between current and voltage source AC/DC converters for suppressing AC harmonics or DC ripples

摘要

This paper presents duality of PWM (Pulse Width Modulation) strategies between current and voltage source AC/DC converters and the relation between PWM strategies for suppressing either AC harmonics or DC ripples. In addition, the authors propose the PWM strategies of a voltage source AC/DC converter which have the duality of the PWM strategies of a current source AC/DC converter without extra logic circuit. The validity of the PWM strategies is verified by experiments.