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. 12, 2019
Filed:
Jun. 08, 2016
Schneider Toshiba Inverter Europe Sas, Pacy sur Eure, FR;
Al Kassem Jebai, Vernon, FR;
Francois Malrait, Jouy sur Eure, FR;
Thomas Devos, Carrieres sous Poissy, FR;
SCHNEIDER TOSHIBA INVERTER EUROPE SAS, Pacy sur Eure, FR;
Abstract
A control method implemented in a variable speed drive for starting a synchronous electric motor, said method including the application, as input, of a reference speed according to a predefined speed profile, the determination of a reference position based on the reference speed that is applied as input, the determination of a voltage in a rotating frame of reference, based on the reference speed that is applied as input, the determination of control voltages to be applied to each output phase depending, on the one hand, on the determined reference position and, on the other hand, on said voltage determined in the rotating frame of reference, and the application of the control voltages to each output phase to obtain an alignment of the position of the rotor of said motor with the reference position.