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:
Jun. 11, 2024

Filed:

Dec. 07, 2021
Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

Robert L. Seagren, Rockford, IL (US);

Kyle Stephen Ives, Loves Park, IL (US);

Michael C. Harke, DeForest, WI (US);

Assignee:

HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 9/08 (2006.01); H02P 9/04 (2006.01); H02P 101/30 (2015.01);
U.S. Cl.
CPC ...
H02P 9/08 (2013.01); H02P 9/04 (2013.01); H02P 2101/30 (2015.01);
Abstract

Systems for parallel excitation for a synchronous machine are provided. Aspects include a rectification circuit coupled to an output of a permanent magnet generator, and an excitation winding connected to an output of the rectification circuit, a direct current (DC) power source connected between an output of the rectification circuit and the excitation winding, wherein the excitation winding supplies an excitation voltage to an excitation armature in a main generator during a during a plurality of operational modes, wherein the plurality of operational modes comprise a startup mode and a generator mode, wherein a DC excitation voltage is provided to the excitation windings by the DC power source during the startup mode, and wherein the DC excitation voltage is provided to the excitation windings by the rectification circuit during the generator mode.


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