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. 02, 2021
Filed:
May. 12, 2020
Midea Group Co., Ltd., Foshan, CN;
MIDEA GROUP CO., LTD., Foshan, CN;
Abstract
A method and device for diving a motor by synchronously calculating reconstructed phase current and phase voltage for a motor driver, including: sampling a direct current (DC) bus current and performing phase current reconstruction according to the DC bus current to acquire a three-phase current of a motor; during the phase current reconstruction, acquiring two sampled currents of each pulse width modulation (PWM) cycle as a two-phase current of the motor and acquiring a command voltage or a sampled voltage; and performing synchronous conversion on the two sampled currents and the command voltage or the sampled voltage to keep a current vector and a voltage vector synchronous, wherein the current vector and the voltage vector are input to a flux observer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile