Torque Ripple Effects according to Hysteresis Motor Closed-Slot Structures Geometry with Finite Element Analysis
Abstract
In conventional hysteresis motors, finite element analysis has been challenging due to the unique characteristics of the rotor, and equivalent-circuit-based analysis has been the common approach. However, this method has the limitations in analyzing torque ripple caused by the stator slot structure. In this study, advanced finite element analysis techniques were applied to compare the torque characteristics and torque ripple with respect to the bridge angle of a closed-slot stator, and the noise characteristics were evaluated through prototype experiments. This approach enabled detailed analysis of the torque ripple characteristics of closed-slot hysteresis motors, which had been difficult to evaluate using conventional methods.
Fields of Study & Subjects
Electric Motor Design and Analysis
Magnetic Properties and Applications
Sensorless Control of Electric Motors
Publication details
- Journal / source
- The Transactions of The Korean Institute of Electrical Engineers
- Volume
- 75
- Issue
- 1
- Pages
- 65–71
- Publication date
- 19 January 2026
- Language
- EN