公开(公告)号：US20180145602A1

公开(公告)日：2018-05-24

申请号：US15861121

申请日：2018-01-03

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Lixiang Wei ,  Peizhong Yi ,  Andrew Joseph Roberts ,  Robert Allen Savatski

IPC: H02M5/458 ,  H02P27/06 ,  H02M1/08

CPC classification number: H02M5/458 ,  H02M1/08 ,  H02M3/33507 ,  H02M5/4585 ,  H02M2001/0006 ,  H02M2001/007 ,  H02P5/74 ,  H02P27/06 ,  Y02B70/1483

Abstract: Motor drive power conversion systems, including a filter circuit with a single inductor and a capacitor for each input phase, an active rectifier with silicon carbide rectifier switching devices and no precharge circuitry, a DC bus circuit with a film DC bus capacitor, an inverter to drive a load, and a controller to operate the rectifier switching devices at a PWM rectifier switching frequency of 10 kHz or more.