公开(公告)号：US10693406B2

公开(公告)日：2020-06-23

申请号：US16253054

申请日：2019-01-21

Applicant: Johnson Controls Technology Company

Inventor： Konstantin A. Borisov ,  Ivan Jadric

IPC: H02P21/00 ,  H02M1/32 ,  H02M1/15 ,  H02P27/06 ,  H02M1/42 ,  H02M5/458 ,  H02M1/00

Abstract: A system or method for a VSD with an active converter including a controller, an inductor, an active converter, a DC link, and an inverter. The active converter is controlled to receive an input AC voltage and output a boosted DC voltage to a DC link, up to 850 VDC, the active converter using only low voltage semiconductor switches to provide the 850 VDC DC link voltage. The controller is configured to operate with a reactive input current magnitude equal to zero at a predetermined system load, and at system loads less than the predetermined system load, to introduce a reactive input current that results in a converter voltage having a magnitude less than the input voltage, wherein the vector sum of the input voltage and an inductor voltage is equal to the converter voltage.

公开(公告)号：US20190158008A1

公开(公告)日：2019-05-23

申请号：US16253054

申请日：2019-01-21

Applicant: Johnson Controls Technology Company

Inventor： Konstantin A. Borisov ,  Ivan Jadric

IPC: H02P21/00 ,  H02M1/42 ,  H02M1/32 ,  H02M5/458 ,  H02P27/06

CPC classification number: H02P21/50 ,  H02M1/15 ,  H02M1/32 ,  H02M1/4216 ,  H02M1/4233 ,  H02M5/4585 ,  H02M2001/0025 ,  H02P27/06 ,  Y02B70/126

Abstract: A system or method for a VSD with an active converter including a controller, an inductor, an active converter, a DC link, and an inverter. The active converter is controlled to receive an input AC voltage and output a boosted DC voltage to a DC link, up to 850 VDC, the active converter using only low voltage semiconductor switches to provide the 850 VDC DC link voltage. The controller is configured to operate with a reactive input current magnitude equal to zero at a predetermined system load, and at system loads less than the predetermined system load, to introduce a reactive input current that results in a converter voltage having a magnitude less than the input voltage, wherein the vector sum of the input voltage and an inductor voltage is equal to the converter voltage.