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:
May. 19, 2026
Filed:
Jul. 28, 2021
Tianjin Saixiang Technology Co., Ltd, Tianjin, CN;
TIANJIN SAIXIANG TECHNOLOGY CO., LTD, Tianjin, CN;
Abstract
A method of adaptive current control for an alternating-current AC servo motor includes acquiring an initial three-phase AC motor current; inputting the initial three-phase AC motor current to a current vector transformation module to generate first target data; inputting the first target data to a current control loop, and simultaneously taking time derivative of the first target data to generate second target data; and inputting both of the second target data and an output of the current control loop to an incremental dynamic inversion control module, and inputting an output of the incremental dynamic inversion control module to the current vector inverse transformation module. The method eliminates a need of motor model with the controller parameters being tuned, thereby overcoming the technical problems in conventional technologies that motor model identification, particularly online model identification, significantly increases system complexity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile