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. 06, 2024
Filed:
Jul. 06, 2022
Contemporary Amperex Technology Co., Limited, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
This application provides a permanent-magnet synchronous machine control method and device, and a permanent-magnet synchronous machine control system. The method includes: obtaining a d-axis current iand a q-axis current iin a permanent-magnet synchronous machine control loop at a current moment; obtaining a fifth-order harmonic current iand a seventh-order harmonic current iin the d-axis current iin the permanent-magnet synchronous machine control loop at the current moment, and a fifth-order harmonic current iand a seventh-order harmonic current iin the q-axis current iin the permanent-magnet synchronous machine loop at the current moment; determining a d-axis current iat a next moment in each switch state; determining a q-axis current iat the next moment in each switch state based on the first current i, the second current i, and the second voltage in each switch state; and determining a control policy of the permanent-magnet synchronous machine.