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:
May. 05, 2026
Filed:
Dec. 11, 2023
Schneider Toshiba Inverter Europe Sas, Pacy sur Eure, FR;
Emmanuel Frappé, Boulogne-Billancourt, FR;
Thomas Devos, Carrières-sous-poissy, FR;
Al Kassem Jebai, Vernon, FR;
François Malrait, Jouy-sur-Eure, FR;
Schneider Toshiba Inverter Europe SAS, Pacy sur Eure, FR;
Abstract
Examples include a method for controlling a variable speed drive driving a three-phase electric motor. The method includes measuring current signals in the windings of the electric motor, and determining a current parameter associated to the electric motor based on the current signals. The current parameter includes either a current offset of at least one winding of the electric motor in relation to a zero-current value, or a current misbalance between windings of the electric motor. The method further includes determining an amended control law of the electric motor for decreasing the determined current parameter, and applying pulse width modulation signals on insulated gate bipolar transistors of the inverter based on the amended control law.