Optimization And Character Analysis For Bearingless Motor Based On Lorentz Force
[1]Wu Huachun,Yang Shiping.Optimization And Character Analysis For Bearingless Motor Based On Lorentz Force[J].Journal of Zhengzhou University (Engineering Science),2018,39(01):67-72.[doi:10.13705/j.issn.1671-6833.2018.01.001]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
39
Number of periods:
2018 01
Page number:
67-72
Column:
Public date:
2018-01-20
- Title:
- Optimization And Character Analysis For Bearingless Motor Based On Lorentz Force
- CLC:
- -
- Abstract:
- Conventional bearingless motor integrated the rotation and radial suspension function with advantages such as contact-free, friction-free, but the torque and radial suspension force were inter-constraint. Thus, the thickness of permanment magnet must be taken into consideration. A novel bearingless motir was designed based on lorentz force. It could generate torque and axial suspension force at the same time, and the radial suspension of rotor depended on radial permanent magnet bearings(PMB). The mathematical model of Lorentz force at axial direction was deduced by using Ohm’s law of magnetic circuit. The influence of the air gap length, thickness of permanent magnet and current to axial Lorentz force was analyzed by using finite element method. The results showed that if the thickness of permanent magnet was increased, the axial bearing capacity would be larger,meanwhile, the optimal thickness of permanent magnet was 3mm.
- References:
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- Similar References:
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Last Update:
2018-01-23