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:
Feb. 04, 2020
Filed:
Apr. 20, 2018
Schneider Toshiba Inverter Europe Sas, Pacy sur Eure, FR;
Francois Malrait, Jouy sur Eure, FR;
Thomas Devos, Carrieres sous Poissy, FR;
Al Kassem Jebai, Vernon, FR;
Schneider Toshiba Inverter Europe SAS, Pacy sur Eure, FR;
Abstract
A method for identifying a resistance value (R) of the rotor of an electric induction motor (M), including determining a reference voltage (u) on the basis of a chosen value ({circumflex over (R)}) for the resistance of the rotor of the electric motor, applying a control voltage (u) to the electric motor, the control voltage being determined on the basis of the reference voltage (u), acquiring the values of the currents (i, i, i) measured in the three phases of the electric motor, so as to deduce a stator current (i) of the electric motor therefrom, comparing the obtained stator current (i) with a predetermined value (i), correcting the value ({circumflex over (R)}) used for the resistance (R) of the rotor and applying steps a) to d) until obtaining a stator current (i) equal to the predetermined value.