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. 05, 2023
Filed:
Apr. 28, 2022
Rolls-royce Singapore Pte. Ltd., Singapore, SG;
Rolls-royce Corporation, Indianapolis, IN (US);
Chandana Jayampathi Gajanayake, Singapore, SG;
Shuai Wang, Singapore, SG;
David Russell Trawick, Indianapolis, IN (US);
Rolls-Royce Singapore Pte. Ltd., Singapore, SG;
Rolls-Royce Corporation, Indianapolis, IN (US);
Abstract
An example system includes an electric machine, an alternating current (AC)/direct current (DC) converter, a Y-capacitor, and a controller. The AC/DC converter being connected to the electric machine and having a DC side and an AC side. The Y-capacitor is located on the DC side of the AC/DC converter. The controller is configured to determine, based on a measurement of the DC side of the AC/DC converter, an occurrence of a ground fault on the AC side of the AC/DC converter, and control, based on the occurrence of the ground fault, operation of the AC/DC converter.