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Analytical Calculation Of Magnetic Field Distribution In The Slotted Air Gap Of A Surface PM Motor Using Complex Relative Air Gap Permeance
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| Author(s) |
Damir Zarko, Thomas A. Lipo, Drago Ban |
| Abstract |
An analytical method for calculation of no-load
magnetic field distribution in the slotted air gap of a surface PM
motor with radial or parallel magnetization is presented. The
method introduces the notion of complex relative air gap
permeance calculated from the conformal transformation of the
slot geometry to take into account the effect of slotting. As a
result an accurate solution of both radial and tangential
components of the flux density can be obtained which shows
excellent agreement with the results of finite element
simulations. The effectiveness of the model has been shown on
an example of a surface PM motor for which the back emf and
the cogging torque waveforms have been calculated. |
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| Filename: | A51244 |
| Filesize: | 408.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-16 by System |
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