NDLI: Low speed high torque PMSM design based on unequal teeth structure

Content Provider	IEEE Xplore Digital Library
Author	Jiakuan Xia Ting Dong Chengyuan Wang Jianyu Zhao
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng., Shenyang Univ. of Technol., Shenyang (Jiakuan Xia; Ting Dong; Chengyuan Wang) \|\| Offshore Oil Eng. Co. Ltd., Tianjin (Jianyu Zhao)
Abstract	To satisfy the requirement of the low speed high torque permanent magnet synchronous motor (PMSM) used in the precise numerical control (NC) rotary table, the multipolar PMSM with similar pole number and slot number and unequal teeth structure is designed in this paper. This kind of motors can operate with lower speed, and the structure of similar pole number and slot number can reduce its inherent cogging torque ripple effectively. The unequal teeth structure maximizes the stator teeth flux linkage and winding synthesis coefficient. As a result, the average torque is increased. The finite element method (FEM) software ANSYS is employed to analyze the proposed motor. The ANSYS calculation results prove that the cogging torque ripple of the proposed motor is 1.05% of its rated torque, and the unequal teeth structure can increase the average torque by 5.26% compared with the equal teeth one with the same motor parameters. Meanwhile, the prototype has been designed, produced and tested. And the experimental results also prove that the design method in the paper is correct and effective.
Starting Page	3274
Ending Page	3277
File Size	683333
Page Count	4
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	Torque Teeth Synchronous motors Permanent magnet motors Forging Computer numerical control Couplings Stator windings Finite element methods Prototypes
Content Type	Text
Resource Type	Article

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