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This paper deals with analytical approach of operational power defined as load power and rotor loss represented as eddy current loss for applying a permanent magnet (PM) synchronous motor/generator to the high-power flywheel energy storage system. The used model is composed of a double-sided Halbach magnetized PM rotor and coreless three-phase winding stator. For one such motor/generator structure, we provide the magnetic field and eddy current with space and time harmonics via magnetic vector potential in two-dimensional (2D) polar coordinate system. From these, the operational power is estimated by backelectromotive force according to the PM rotor speed, and the rotor loss is also calculated from Poynting theorem.
Published in:
Journal of Applied Physics
(Volume:105
,
Issue:
7
)
Date of Publication: Apr 2009
- Page(s):
- 07F116 - 07F116-3
- ISSN :
- 0021-8979
- Digital Object Identifier :
- 10.1063/1.3072766
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 24 June 2009
- Issue Date :
- Apr 2009
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