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.

Date of Patent:
Feb. 20, 2024

Filed:

Mar. 12, 2021
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Fernando Arturo Ramirez Sanchez, Salem, VA (US);

Robert Gregory Wagoner, Roanoke, VA (US);

Nathaniel Robert Michener, Roanoke, VA (US);

Assignee:

GE Infrastructure Technology LLC, Greenville, SC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H02M 5/458 (2006.01); H02M 7/487 (2007.01); H02P 9/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/08 (2013.01); H02M 5/4585 (2013.01); H02M 7/487 (2013.01); H02P 9/007 (2013.01);
Abstract

A method for operating a multi-level bridge power converter of an electrical power system connected to a power grid includes providing a plurality of switching devices of the power converter in an active neutral point clamped topology. The method also includes operating the plurality of switching devices in a plurality of operating states such that current simultaneously flows through at least two parallel recovery paths of the plurality of switching devices during operation of the power converter to minimize a commutation path of the current when at least one diode of the plurality of switching devices recovers, thereby reducing parasitic inductance affecting the recovering antiparallel diode or the switch.


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