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:
Sep. 14, 2021
Filed:
Oct. 29, 2018
Applicant:
Rolls-royce North American Technologies, Inc., Indianapolis, IN (US);
Inventors:
David Loder, Carmel, IN (US);
David Russell Trawick, Indianapolis, IN (US);
Assignee:
Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/12 (2006.01); H02H 1/00 (2006.01); H02J 3/36 (2006.01); H02M 7/217 (2006.01);
U.S. Cl.
CPC ...
H02H 7/1216 (2013.01); H02H 1/0007 (2013.01); H02J 3/36 (2013.01); H02M 7/217 (2013.01);
Abstract
A control unit of an electrical system is described. The control unit causes some of the switches in a power converter of the electrical system to not be shut down and not conducting upon detection of a fault current caused by a line-to-line fault. Instead, the control unit causes at least one of the switches to be switched-on and conducting to allow the some of the fault current to flow through the at least one switch, before activating a protection device that creates an open circuit and breaks the fault.