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. 10, 2026
Filed:
Apr. 01, 2024
Zhejiang University, Zhejiang, CN;
Zhejiang University Advanced Electrical Equipment Innovation Center, Zhejiang, CN;
Mengting Ye, Zhejiang, CN;
Yanfei Cao, Zhejiang, CN;
Zhichen Lin, Zhejiang, CN;
Zhiqiang Wang, Zhejiang, CN;
Tingna Shi, Zhejiang, CN;
Changliang Xia, Zhejiang, CN;
ZHEJIANG UNIVERSITY, Zhejiang, CN;
ZHEJIANG UNIVERSITY ADVANCED ELECTRICAL EQUIPMENT INNOVATION CENTER, Zhejiang, CN;
Abstract
A direct locating method for calculating a position of a permanent magnet synchronous motor is provided. The direct locating method performed by a processor includes: three-phase stator currents of the permanent magnet synchronous motor are converted by coordinate to obtain the stator currents in the αβ two-phase stationary coordinate system, and the initial position region is determined. The stator currents in dq two-phase synchronous rotating coordinate system are obtained by coordinate conversion. The stator current cost model is established. Then the d-axis stator current is inputted into the cost model and the position is outputted, and the final estimated position is determined to realize the direct locating of the permanent magnet synchronous motor's position.