Invention Grant
- Patent Title: Variable speed drive with active converter
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Application No.: US16253054Application Date: 2019-01-21
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Publication No.: US10693406B2Publication Date: 2020-06-23
- Inventor: Konstantin A. Borisov , Ivan Jadric
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Fletcher Yoder, P.C.
- Main IPC: H02P21/00
- 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.
Public/Granted literature
- US20190158008A1 VARIABLE SPEED DRIVE WITH ACTIVE CONVERTER Public/Granted day:2019-05-23
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