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.:
Date of Patent:
Apr. 30, 2013
Filed:
Jan. 03, 2011
Heinz Lendenmann, Vasteras, SE;
Rahul Kanchan, Vasteras, SE;
Hector Zelaya DE LA Parra, Vasteras, SE;
Luca Peretti, Västerås, SE;
Heinz Lendenmann, Vasteras, SE;
Rahul Kanchan, Vasteras, SE;
Hector Zelaya De La Parra, Vasteras, SE;
Luca Peretti, Västerås, SE;
ABB Research Ltd., , CH;
Abstract
A method for finding an operating point of an electric motor which includes the steps of generating a perturbation signal, combining the perturbation signal with a current magnitude related to a drive system of the motor or combining the perturbation signal with a power magnitude related to the motor, yielding a combined signal, and sending, based on the combined signal, a flux adjustment signal to adjust a flux of the motor. An apparatus for finding an operating point of an electric motor comprising is also presented.