Analysis of the Torque Characteristics of a Multi-Degrees of Freedom Surface Permanent-Magnet Motoropen access
- Authors
- Kang, Dong-Woo; Go, Sung-Chul; Won, Sung-Hong; Lim, Seung-Bin; Lee, Ju
- Issue Date
- Mar-2010
- Publisher
- KOREAN MAGNETICS SOC
- Keywords
- SPM; spherical motor; magnetization pattern; torque ripple
- Citation
- JOURNAL OF MAGNETICS, v.15, no.1, pp.36 - 39
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MAGNETICS
- Volume
- 15
- Number
- 1
- Start Page
- 36
- End Page
- 39
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175342
- DOI
- 10.4283/JMAG.2010.15.1.036
- ISSN
- 1226-1750
- Abstract
- The multi-degrees of freedom surface permanent-magnet motor (Multi-D.O.F. SPM) has several degrees of freedom operations that are defined as the "roll", "yaw", and "pitch". Normally, the torque that is generated to rotate a rotor includes ripples. The analysis of the torque ripples is important for improving motor performance. In terms of the electric analysis, torque ripple occurs as a result of many factors, including the rotor and stator structures, the distribution of the air-gap flux density, and the waveform of the current in the coils. In particular, the torque ripple is an important factor in the stable operation of the Multi-D.O.F. SPM. Therefore, in this work, the torque ripple was analyzed using various types of magnetization for the permanent magnet. An improved model was proposed for the Multi-D.O.F. SPM based on this analysis.
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