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. 24, 2026
Filed:
Dec. 04, 2023
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/539 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 1/325 (2021.05); H02M 7/539 (2013.01);
Abstract
A method for operating an electric power converter, and an electric power converter including a plurality of controllable power semiconductor switches and configured to operate in a grid-forming mode of operation such that the controllable power semiconductor switches are operated at a first switching frequency, and in response to detecting a short-circuit fault in an AC network connected to the electric power converter provide an AC current of at least a predetermined magnitude to the AC network such that the controllable power semiconductor switches are operated at a second switching frequency, wherein the second switching frequency is lower than the first switching frequency.