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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.:

US 10784757 B1

PDFFull Text
Date of Patent:
Sep. 22, 2020

Filed:

Oct. 23, 2018

Synchronous machine with common motor/generator exciter stage

Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

Lijun Gao, Renton, WA (US);

Matthew J. Krolak, Renton, WA (US);

Shengyi Liu, Sammamish, WA (US);

Assignee:

THE BOEING COMPANY, Chicago, IL (US);

Attorney:

Patterson + Sheridan, LLP

Primary Examiner:

Burton S Mullins

Int. Cl.
CPC ...
H02K 19/38 (2006.01); H02P 9/02 (2006.01); H02K 3/28 (2006.01); H02K 11/042 (2016.01); H02K 19/12 (2006.01); H02K 19/28 (2006.01); H02K 11/00 (2016.01); H02K 15/06 (2006.01); H02P 103/20 (2016.01); H02P 31/00 (2006.01);
U.S. Cl.
CPC ...
H02K 19/38 (2013.01); H02K 3/28 (2013.01); H02K 11/0094 (2013.01); H02K 11/042 (2013.01); H02K 15/062 (2013.01); H02K 19/12 (2013.01); H02K 19/28 (2013.01); H02P 9/02 (2013.01); H02P 31/00 (2013.01); H02P 2103/20 (2015.01);
Abstract

A synchronous machine () has a frame (), a shaft (), a main section (), and an exciter section (). The main section () has a stator winding () which is mounted on the frame, and a rotor winding () which is mounted on the shaft. The exciter section has a transformer () and a rectifier (). The transformer has a primary winding (A) mounted on the frame and a secondary winding (B) mounted on the shaft. The rectifier is mounted on the shaft and rectifies an output of the secondary winding to provide a rectified output to the rotor. A control unit () provides a high-frequency control signal to the primary winding. This signal is magnetically coupled to the secondary winding, rectified, and then applied to the rotor to control the operation of the synchronous machine.

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