The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2016
Filed:
Dec. 01, 2014
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Inventor:
Takahiro Saeki, Kitakyushu, JP;
Assignee:
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2016.01); H02P 25/02 (2016.01); H02P 27/08 (2006.01); H02P 29/02 (2016.01); H02M 5/458 (2006.01); H02M 7/493 (2007.01); H02P 5/74 (2006.01); H02M 1/00 (2006.01); H02P 31/00 (2006.01);
U.S. Cl.
CPC ...
H02P 25/02 (2013.01); H02M 5/458 (2013.01); H02M 7/493 (2013.01); H02P 5/74 (2013.01); H02P 27/08 (2013.01); H02P 29/025 (2013.01); H02M 2001/008 (2013.01); H02M 2001/0025 (2013.01); H02P 31/00 (2013.01);
Abstract
A motor control system includes a plurality of motors, a plurality of inverters, and a controller. The plurality of inverters are configured to drive the plurality of respective motors and are coupled to a common bus line through which DC power is supplied. When power supply is interrupted, the controller is configured to calculate a frequency command value so as to maintain a bus line voltage across the common bus line and configured to supply the frequency command value to the plurality of inverters.