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:
Dec. 16, 2025

Filed:

Oct. 29, 2024
Applicant:

National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);

Inventors:

Lee Joshua Rashkin, Albuquerque, NM (US);

Timothy James Donnelly, Albuquerque, NM (US);

David Wilson, Tijeras, NM (US);

Ronald Craig Matthews, Jr., Albuquerque, NM (US);

Steven F. Glover, Albuquerque, NM (US);

Kyle Jackson Goodrick, Salt Lake City, UT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/00 (2006.01); H02M 3/335 (2006.01); H02M 7/217 (2006.01); H02M 7/537 (2006.01);
U.S. Cl.
CPC ...
H02J 3/001 (2020.01); H02M 3/33573 (2021.05); H02M 7/217 (2013.01); H02M 7/537 (2013.01);
Abstract

A high altitude electromagnetic pulse (HEMP) or other similar geomagnetic disturbance (GMD) has the potential to severely impact the operation of large-scale electric power grids by introducing low-frequency common-mode (CM) currents which deteriorate the performance of key grid components, such as large power transformers. A solid-state transformer (SST) can replace susceptible equipment and improve grid resiliency by safely redirecting, absorbing, and/or converting these CM insults.


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