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:
Feb. 05, 2019
Filed:
Jun. 08, 2016
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Inventor:
Akira Yamazaki, Kitakyushu, JP;
Assignee:
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/06 (2016.01); H02P 21/22 (2016.01); H02P 21/00 (2016.01); H02P 21/20 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 21/22 (2016.02); H02P 21/00 (2013.01); H02P 21/20 (2016.02); H02P 27/08 (2013.01); Y02P 80/116 (2015.11);
Abstract
A motor controller includes a driver, a current detector, and a command generator. The driver is configured to drive a power converter based on a flux command on which an exploration signal is superimposed. The current detector is configured to detect an output current output from the power converter that has been driven by the driver. The command generator is configured to generate the flux command so as to reduce a current component, among current components included in the output current detected by the current detector, that corresponds to the exploration signal.