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:
Jan. 28, 2025

Filed:

Dec. 20, 2022
Applicant:

Regal Beloit America, Inc., Beloit, WI (US);

Inventors:

Michael R. Koller, Columbia City, IN (US);

Ludovic Andre Chretien, Columbia City, IN (US);

Assignee:

Regal Beloit America, Inc., Milwaukee, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/44 (2006.01); H02K 11/25 (2016.01); H02K 11/26 (2016.01); H02K 11/33 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 1/44 (2013.01); H02K 11/25 (2016.01); H02K 11/26 (2016.01); H02K 11/33 (2016.01); H02P 27/06 (2013.01); H02K 2213/03 (2013.01);
Abstract

An electric motor system is provided. The electric motor system includes a drive circuit including an inverter configured to supply variable frequency current over a first duration and a switch configured to supply line frequency current over a second duration. The electric motor system further includes an electric motor coupled to the drive circuit and a controller communicatively coupled to the drive circuit. The controller is configured to control the inverter to supply variable frequency current to the electric motor over the first duration, determine to control the drive circuit to transition from supplying variable frequency current to supplying line frequency current, measure at least one parameter of the inverter, compute, based on the at least one measured parameter, an adjustment to a default parameter to enable the inverter to reach a threshold output frequency, and operate the inverter based on the computed adjustment to the default parameter.


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