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:
Aug. 30, 2022

Filed:

Jan. 09, 2020
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Zhijun Cai, Dunlap, IL (US);

Yanchai Zhang, Dunlap, IL (US);

Wenming Zhao, Dunlap, IL (US);

Yong Sun, Dunlap, IL (US);

Xuefei Hu, Dunlap, IL (US);

Eric Wayne Ohlson, Edelstein, IL (US);

Suresh Baddam Reddy, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 9/10 (2006.01); G01P 3/48 (2006.01); H02K 11/20 (2016.01); H02P 6/17 (2016.01); G01D 5/14 (2006.01);
U.S. Cl.
CPC ...
G01P 3/48 (2013.01); G01D 5/14 (2013.01); H02K 11/20 (2016.01); H02P 6/17 (2016.02);
Abstract

A system and method for protecting a genset from pole slip is disclosed. The system may comprise a generator, a prime mover and a controller. The generator includes a stator and a rotor. The prime mover is configured to drive rotation of the rotor. The controller may be configured to: determine mechanical status of the generator based on data associated with a translational displacement of the rotor; determine electrical status of the generator based on (a) a load angle or (b) the load angle and a rate of change of the load angle associated with rotation of the rotor in the stator; determine an operating condition of the generator based on fusion of the mechanical status and the electrical status; if the operating condition is a pole-slip-warning, activate an output member to display or emit a warning; and, if the operating condition is a pole-slip, activate a protective action.


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