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. 15, 2021
Filed:
May. 12, 2020
Applicant:
Midea Group Co., Ltd., Foshan, CN;
Assignee:
MIDEA GROUP CO., LTD., Foshan, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/00 (2016.01); H02P 21/14 (2016.01);
U.S. Cl.
CPC ...
H02P 21/14 (2013.01);
Abstract
A method and device for driving a motor by synchronous calculation of sampled phase current and phase voltage, including: sampling three-phase current of a motor to obtain a current sampling value, and obtaining an instruction voltage or a sample voltage as a voltage sampling value; and performing synchronous conversion on the current sampling value and the voltage sampling value to obtain a fundamental wave voltage at a current sampling time to keep a current vector and a voltage vector input into a flux observer synchronous.