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:
Apr. 21, 2020
Filed:
Feb. 28, 2018
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Assignee:
ABB Schweiz AG, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2016.01); H02P 27/08 (2006.01); H02P 23/00 (2016.01);
U.S. Cl.
CPC ...
H02P 27/047 (2013.01); H02P 27/08 (2013.01); H02P 23/0077 (2013.01);
Abstract
A unique system may include a power absorber; an electrical machine coupled to the power absorber and operative to supply mechanical power to the power absorber; a drive coupled to the electrical machine and operative to supply electrical power to drive the electrical machine; and a controller communicatively coupled to the drive. The controller may be configured to execute program instructions to selectively vary a control voltage while maintaining a given torque output of the electrical machine, and to determine, based on varying the control voltage, a minimum current required for the electrical machine to maintain the given torque output.