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. 28, 2018
Filed:
Mar. 07, 2014
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventor:
Gary L. Miles, Stillman Valley, IL (US);
Assignee:
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 19/10 (2006.01); H02P 7/29 (2016.01); F04B 35/04 (2006.01); G01R 31/34 (2006.01); H02P 29/00 (2016.01); G01R 31/40 (2014.01); H02P 1/04 (2006.01);
U.S. Cl.
CPC ...
G01R 31/34 (2013.01); G01R 31/40 (2013.01); H02P 1/04 (2013.01); H02P 29/00 (2013.01);
Abstract
Disclosed herein is a system and method for determining faults in motors and drives. The system includes a motor drive that has a DC-link coupled to a power source. A controller system is configured to measure power applied to the DC-link, integrate the power over time to yield energy consumed, and to determine energy that accumulates in operation over time. The controller is further configured to detect a fault condition when the energy that accumulates in operation is less than expected based on the energy consumed.