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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 11828186 B1

PDFFull Text
Date of Patent:
Nov. 28, 2023

Filed:

Dec. 08, 2021

Electrical power systems

Applicant:

Rolls-royce Plc, London, GB;

Inventor:

Graham P Bruce, Derby, GB;

Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:

Oliff PLC

Primary Examiner:

Joseph Ortega

Int. Cl.
CPC ...
F01D 15/10 (2006.01); H02K 7/18 (2006.01); H02J 1/10 (2006.01); B64D 27/24 (2006.01); B64D 31/00 (2006.01); H02H 9/02 (2006.01); B64D 41/00 (2006.01); H02J 4/00 (2006.01); B64D 27/10 (2006.01); B64D 27/02 (2006.01);
U.S. Cl.
CPC ...
F01D 15/10 (2013.01); B64D 27/24 (2013.01); B64D 31/00 (2013.01); B64D 41/00 (2013.01); H02H 9/023 (2013.01); H02J 1/102 (2013.01); H02J 4/00 (2013.01); H02K 7/1823 (2013.01); B60L 2200/10 (2013.01); B64D 27/10 (2013.01); B64D 2027/026 (2013.01); B64D 2221/00 (2013.01); F05D 2220/323 (2013.01); F05D 2220/76 (2013.01); H02J 2310/44 (2020.01); Y02T 50/60 (2013.01);
Abstract

Electrical power systems for distributing electrical power in arrangements including one or more gas turbine engines; one such system includes: one or more rotary electric machines, coupled to a gas turbine engine spool; converter circuits connected to the rotary electric machines converting between alternating current (ac) and direct current (dc), wherein the rotary electric machines and the converter circuits output a number R≥2 of dc power channels, each channel having an index r=(1, . . . , R); and a group of N dc load channels connected to the R dc power channels by a switching arrangement, wherein each dc load channel has an index n=(1, . . . , N) and R<N≤2R. The switching arrangement operates to connect the r-th power channel to the n-th load channel according to the relationship:

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