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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 8890454 B1

PDFFull Text
Date of Patent:
Nov. 18, 2014

Filed:

Mar. 30, 2011

Phase locked loop based torsional mode damping system and method

Applicant:

Sergio DE Franciscis, Florence, IT;

Inventor:

Sergio De Franciscis, Florence, IT;

Assignee:

Nuovo Pignone S.p.A., Florence, IT;

Attorney:

GE Global Patent Operation

Primary Examiner:

David Luo

Int. Cl.
CPC ...
H02P 6/10 (2006.01); H02P 29/00 (2006.01); H02P 9/10 (2006.01); H02P 21/05 (2006.01); H02P 9/00 (2006.01);
U.S. Cl.
CPC ...
H02P 21/05 (2013.01); H02P 29/0038 (2013.01); H02P 9/10 (2013.01); H02P 2009/004 (2013.01);
Abstract

A torsional mode damping controller system is connected to a converter or placed inside the converter. The converter is driving a drive train including an electrical machine and a non-electrical machine. The controller system includes a first input interface configured to receive a first digital signal from a first phase lock device or a first dynamic observer, a second input interface configured to receive a second digital signal from a second phase lock device or a second dynamic observer, and a controller connected to the first and second input interfaces. The controller is configured to receive the first and second digital signals, compare the first digital signal with the second digital signal, generate control data for a rectifier and/or an inverter of the converter, and send the control data to the rectifier and/or to the inverter.

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De Franciscis, Sergio. (2014). Phase locked loop based torsional mode damping system and method (U.S. Patent No. 8890454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8890454

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