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:
Jun. 16, 2020
Filed:
Jan. 28, 2019
Stmicroelectronics (Beijing) R&d Co. Ltd, Beijing, CN;
Rendong Wang, Beijing, CN;
STMICROELECTRONICS (BEIJING) R&D CO. LTD., Beijing, CN;
Abstract
The present disclosure is directed to a permanent magnet motor control method and system. A new structure configuration of a permanent magnet motor has a rotor with two or more permanent magnets attached thereon, a stator wound in a 'Y' topology with three coils (windings) arranged at 120 degree among one another, and a neutral point of the wound stator wired in a manner that the voltage at the neutral point may be detected in substantially real time. The detected neutral point voltages are analyzed together with the associated vectors of the excitation current provided to the windings of the stator to determine a speed of the rotor. The determined speed of the rotor is used for vector control.