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Design Of A Super-High Speed Cryogenic Permanent Magnet Synchronous Motor
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| Author(s) |
Liping Zheng, Thomas X. Wu, Jay Vaidya, Dipjyoti Acharya, Krishna Murty, Limei Zhao, Chan H. Ham, Kalpathy B. Sundaram, Nagaraj Arakere, Jay Kapat And Louis Cho |
| Abstract |
This paper gives the design and simulation of a permanent
magnet synchronous motor (PMSM) for a super-high
speed centrifugal compressor drive application. The PMSM will
have an output power of 2000 W at 200,000 rpm with 28 V dc
power supply. It is designed for operation at a cryogenic temperature
of 77 K. The designed PMSM is a 2-pole, 3-phase slotless
structure. The permanent magnet is centrally located inside
the shaft. Multi-strand twisted Litz-wire is proposed to be used to
reduce eddy current loss in the winding. The selection of materials
for super-high speed and cryogenic application criteria is
presented. The possible structures of rotor and stator are considered
and simulated using 2-D finite element method (FEM).
Mechanical stress simulation and rotordynamic issues are also
considered. Projected total efficiency of the motor is over 90%. |
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| Filename: | A16693 |
| Filesize: | 485 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-16 by System |
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