REGULATED AC-DC HYBRID RECTIFIER

摘要

A regulated hybrid AC-DC rectifier employing a boost stage is disclosed herein. The regulated hybrid AC-DC rectifier comprises a 12 pulse inductive current splitter/merger (CSM) system coupled to a boost stage. The boost stage may be regulated using a PWM controller. The regulated hybrid AC-DC rectifier may further include a three phase input filter configured to regulate the harmonic content of the AC-DC hybrid converter within a desired limit. The regulated hybrid AC-DC rectifier may further comprise a notch filter system configured to tune out harmonic ripples at known intervals, such as 11th and 13th order harmonics.

主权项

1. A regulated AC-DC hybrid rectifier system comprising:
an AC-side coupled interphase transformer (IPT) based passive rectifier, wherein the output of the IPT-based passive rectifier is the input to a boost stage, wherein the boost stage comprises:
a pulse width modulated (PWM) controller, wherein the output of the PWM controller is coupled to the input of a boost switch,the boost switch, where in a switching duty of the boost switch is varied by the PWM controller to maintain a substantially constant DC output voltage, anda boost diode coupled to the output of the boost switch.