Evaluation of Design Techniques for Reducing Cogging Torque of Permanent Magnet Synchronous Motor

摘要

High performance motor drive applications require permanent magnet synchronous motors (PMSM) that produce smooth torque with low torque ripple components. This paper quantifies various sources of torque ripple and is focused on several PMSM design techniques that can be used in reducing the cogging torque. For chosen design technique a validation with finite element method (FEM) analysis is given. Finally the comparison and evaluation of design principles and their combination are presented and commented.