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:
Nov. 19, 2013
Filed:
Aug. 09, 2011
Sebastian Villwock, Pechbrunn, DE;
Heiko Zatocil, Nuremberg, DE;
Sebastian Villwock, Pechbrunn, DE;
Heiko Zatocil, Nuremberg, DE;
Baumuller Nurnberg GmbH, Nuremberg, DE;
Abstract
Identification without shaft encoder of electrical equivalent circuit parameters of a three-phase asynchronous motor comprising: -standstill position search of the rotor, so that the d flux axial direction of the rotor is aligned opposite the cc axial direction of the stator; -test signal voltage supply Uin the d flux axial direction of the motor whereby the q transverse axial direction remains without current; -measuring signal current Iof the d flux axial direction of the motor; -identification of equivalent circuit parameters of the motor based on the test signal voltage Uand on the measuring signal current Iin the d flux axial direction; whereby the rotor remains torque-free. The method used to control electrical drives. An identification apparatus for a synchronous motor and a motor control device comprising the apparatus, whereby identified equivalent circuit parameters can be used to determine, optimize and monitor a motor control.